2004 Mazda Mazda6 Mazda Mazda6 2004

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2004 Mazda Mazda6 repairs by problem area

Engine (64%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (4%)

Suspension and Steering (9%)

Electrical and Air Conditioning (20%)

Paint, Rust, Leaks, Rattles, and Trim (0%)

Other (3%)

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Chart based on 232 repairs.
See TSBs and recalls for the 2004 Mazda Mazda6.

2004 Mazda Mazda6 engine repair cost distribution

$2500+ (5%)

$1000 - $2499 (12%)

$500 - $999 (24%)

$100 - $499 (43%)

< $100 (16%)

Chart based on 95 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2014 Mazda Mazda6 4dr Sedan

272-horsepower 3.7L V6 5-speed manual FWD

36000 mi Blind spot monitoring sensor got damaged somehow and the BMS no longer is working. 
54000 mi

US $580
Problem with shifter assembly - bad solenoid. When I put the car in park sometimes was not registering that it was in Park and so would not shut off the car fully. Replaced the whole thing. Water pump was leaking. 
62700 mi Radiator had a leak. They found a problem and replaced. 
3000 mi Low oil pressure light came on. Took to dealer after seeing it twice. Oil pump failure. Replaced under warranty. Part sent to Mazda. 
67000 mi

US $50
Gearbox plastic came loose, causing the pieces to get jammed every time going into park. 50$ repair for the plastic pieces to be replaced. 
2000 mi False Reading of Thermostat caused a check engine light, Mazda has issued a reflash to fix the problem. Took the car in for this reflash. 
10000 mi Navigation system lost ability to acquire correct information from GPS. Both rear door gaskets pull off of door whenever it has rained and then dried up. 
17000 mi Navigation failed for second time, nav screen would only show black with an empty popup window. Radar Cruise Control and Forward Collision Avoidance systems both failed 2.5 hours into a 7 hour drive home. 
26000 mi Cluster would tell you to put car in park when it already was. Would not shut off accessories. 
75300 mi

US $60
Slight miss occurred. Replaced spark plugs 
12000 mi engine replaced after unsuccessful repair attempts 
33000 mi Radiator fan replacement (previous one was squeaking) Mazda Radar Cruise Control TSB 

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2014 Mazda Mazda6 4dr Sedan

-horsepower 5-speed manual RWD

2000 mi Engine seemed to be consuming oil. Told by dealer that the engine oil may have been low at time of manufacture/delivery. Dealer did an oil change and will continue to monitor. 

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2010 Mazda Mazda6 4dr Sedan

272-horsepower 3.7L V6 4-speed automatic FWD

13000 mi Cooling fan had broken, needed replacement. Repair made at no cost. 
28000 mi

US $60
Left headlight needed to be replaced. This is a fairly complicated change for this make/model, so it took 0.8 of an hour for shop to complete. 
31000 mi

US $45
Right headlight needed to be replaced. This is a fairly complicated change for this make/model, so it took >0.5 of an hour for shop to complete. 
55000 mi

US $500
Right rear brake caliper was stuck, causing a squealing noise. Pads and rotors were also replaced at this time. Amount of repair is estimate of amount only related to the caliper repair. 
72300 mi

US $986
A/C system was completely shot, needed to replace essentially the whole thing. 
74000 mi

US $100
Left headlight was burned out and needed replacement. Check engine light; found and patched small leak. Light came back on a few days later. 
76000 mi

US $274
Check engine light. Diagnosed as a faulty valve, which was replaced. Light came back on a few days later. 
78000 mi

US $101
Check engine light. Similar diagnosis and solution as last time. Light came back on a few days later. 
80000 mi

US $476
Check engine light again. This time took to a local Mazda dealer, and they were able to find the solution: replace leaking emission purge valve. The previous shop refunded all money I had spent on the unsuccessful repair attempts. 
50000 mi

US $300
Engine light due to O2 sensor 
50000 mi

US $439
Replace Oxygen Sensor 

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2010 Mazda Mazda6 4dr Sedan

170-horsepower 2.5L I4 5-speed manual FWD

40300 mi new rotors and calipers on rear brakes now both low beam bulbs have had to be changed. Other than this just oils changes 
41300 mi

C $310
I took the car into Kanata Mazda with a noise which I told them I thought was a bearing from the accessory drives. They told me it was a clutch throw out bearing. Of course not covered on warranty. I knew that would escalate to $2,000 I went to my old shop, Honda Gifford Automotive, in Oct and they immediately said belt tensioner about $310. Did it and viola no noise. Dealer will not refund and Mazda said how do we know they were not right about the clutch. 
29000 mi Engine has a vibration/runs rough around 2000 RPM. Shifter feels clunky and has an occasional gring between 1st and 2nd gear 
31000 mi I adjusted the clutch rod by lengthening it 1 1/2 turns which allowed fuller clutch disengagemnet. All clearances remain within factory specs. 
55300 mi

US $816
Repaired/replaced first and second gear components and replaced clutch and flywheel 
52700 mi Replaced 1'st and 2'nd gear, syncros and fork due to difficulty getting transmission into first from neutral. Repaired under Warranty 
55500 mi

C $100
Failed O2 Sensor 

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2010 Mazda Mazda6 4dr Sedan

170-horsepower 2.5L I4 4-speed automatic FWD

31620 mi Reported a "clunk" in the front end, they test drove the car and said that there was nothing wrong. Plastic protective cover under passenger floor came loose and rattles on the floor at highway speeds, several plastic clips broke off Dealer found broken trim pieces around back door, I was not aware of these and they were replaced under warranty. 
32860 mi accessory drive belt failed on the highway suddenly. 
40920 mi

C $120
Twice in several weeks the car lost power, the engine stuttered and trouble lights on the dash flickered. After this the car would not start. After a half hour wait the car started and ran fine. 
44600 mi

C $10
Engine stuttered and died, afterwards it works fine no engine codes. Last visit to the dealer they replaced a mass air flow sensor, problem occurred again. Based on research i cleaned the throttle plate/body. Will wait an see if it worked. 
49160 mi stalled while stopping,started normally. Occurred 3 times before and would not restart for 10-15 mins. shop found no problem the 1st time 2nd time replaced Mass air sensor not fixed. i Cleaned throttle plate seems to have improved.Not fixed. 
56040 mi Engine stuttered and died, then would not restart or started hard. Once started it ran rough and died at idle. Would then randomly work normally. I disconnected the ecu and cam sensor then securely reconnected them. Will probably fail again in 3-6 months. 
40880 mi

C $325
Replaced faulty (frozen & cracked) module, which managed fuel to fuel injectors. 
Car slightly scratched at the factory and repaired there, but not to our satisfaction. Mazda paid for dealer to repair the paint job and provided a loaner while the work was done. 
13000 mi very slight squeak present when car at rest and rocked back and forth. Dealer diagnosed noise from exhaust hanger and replaced the hanger per tsb 
46000 mi

US $200
Exhaust "donut" between manifold and front pipe failed again - replaced the donut and mounting hardware to eliminate squeaking/chirping at idle. 
55000 mi

US $750
Leak in A/C evaporator core - core was replaced and system evacuated and recharged. Mazda covered parts under goodwill repair out of warranty, we covered labor (greater than half the cost) 
31000 mi

US $607
Steering pump leak requiring replacement of steering pump, hose, and replenishment v of steering fluid. $255 labor and $352 parts.  Oil leak due to oil pan gasket tear. Covered by CPO warranty. 
86300 mi Replaced both Intake control valves under pzev warranty. Check engine light was on 
36000 mi Lumbar support was broken Second repair of lumbar support knob 
108000 mi exhaust leak and cracked bolt near tailpipe 
125000 mi

US $6
Headlights 
145000 mi Headlight again!!! 
44000 mi

US $140
Bad O2 Sensor. I attempted to replace the sensor but it was stuck on so badly that they had to drill and retap to replace it. The valve stem assembly broke off while filling the tire with air. It is a one piece unit with valve stem and air pressure sending unit. The valve stem is metal but had corroded to a point that the stem broke off and the tire went flat 
76000 mi Transmission fluid and oil leak. 
135000 mi

US $141
Needed a power train belt replaced. 
69000 mi Some issue with the exhaust flange. It doesn't seem to be fixed. I may have to take it back. 
71300 mi Same noise as earlier from Exhaust. Got it checked again. Left the car overnight with the dealer. They couldn't figure out. Car came back the way it went in but the noise went away for some time. Guess they did something and didn't disclose. 
78000 mi

US $300
Drive belt and tensioner were worn out. Drive belt was cracked. Tensioner was noisy. Had them replaced. P04xx error. Gas cap replacement due to fuel vapors escaping from tank. Transmission fluid was burn out. Blackish ij color. Had to replace it. Drain and fill 

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2010 Mazda Mazda6 4dr Hatch

-horsepower 4-speed automatic AWD w/low range

90900 mi

€2600
Blown engine due to failure of #4 injector washer 
97960 mi Blown Turbo 

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2009 Mazda Mazda6 4dr Sedan

272-horsepower 3.7L V6 4-speed automatic FWD

1000 mi The rear seat material wasn't properly attached. Problem easily fixed by the dealer. 
2000 mi Rear left side door needed adjustment. It was sticking out about 1/8" (3mm) compared to the rest of the body. Easily adjusted by the dealer. 
20000 mi Defective Power Outlets. power adapters can get stuck. Power Outlets are to be replaced with an updated design. 
71000 mi

US $20
Rear left/driver side exhaust bolts sheared off. Muffler and pipes are fine. Bolts needed to be removed and replaced. Maybe due to salt thaw of the midwest. 
8000 mi Apparently there is a TSB for a purge valve? My car sounded like a diesel from when I took delivery of it, more so from outside the car when idling. Loud tapping/knocking sound. Parts dept diagnosed it as a purge valve. To be replaced under warranty. 
9000 mi Excessive noise at idle, diagnosed as a purge valve, parts were ordered and took 4 weeks to arrive, dealer installed/replaced parts, problem solved. Foam seal at base of windshield where meets dashpad was coming out. Apparently the adhesive failed and foam seal shifted and was bunching up. Dealer had factory rep inspect car and authorize a fix. Parts ordered, arrived next day and installed. 
15000 mi Once car is warmed up I have an erratic idle. Dealer checked fuel pressure and fuel maps and cleaned throttle body. Sent me home. Problem resurfaced next day. 
29000 mi while in for routine maintenance (oil change, brakes) technician noticed a small transmission leak - fixed with a new O ring seal. 
30000 mi Dealer replaced front strut "tops" to cure a knocking sound when going over bumps. They indicated that Mazda had a revised part to solve an apparent problem. 
35000 mi Same problem as I had earlier...the foam rubber seal at the base of the windshield/dashpad seems to unglue and begin pushing up to where it is visible. Dealer affected the same repair as before, replacing seal. 
93000 mi

US $1200
Air would intermittantly blow hot. Replaced radiator and tstat. Didnt repair...replaced fan module. 
35000 mi

US $202
Battery would not hold a charge. Batter replaced. Part no. 0000-80-6096-WB 
38000 mi

US $360
Purge valve solenoid replaced. Part no. CA07-20-370H 
44000 mi

US $400
Throttle Body Harness replaced. 
79000 mi

US $200
Leaking hose from power steering pump. Replaced both in and out hoses 
89000 mi

US $120
Exhaust gasket leaking 
2000 mi Foam pushing up between dash and front windshield Fuel pump replaced 
3000 mi Overhead Console missing screws from Factory, causing rattles. Dealer added appropriate hardware. Heat shield in engine bay was causing rattle at highway speeds. Dealer removed and reattached correctly. Sirius satellite radio will kick out every so often 3 - 4 times since purchase. Will get Com Err on display and have to turn off car then restart to get the SAT option to work. Was told to contact Sirius for resolution. 
22000 mi Volume knob not functioning. Turning the knob doesn't change the volume. Luckily, steering wheel mounted controls were still working. 
26700 mi

US $155
Car wouldn't start after sitting for 3+ days or if I had to start the car multiple times within short period. Battery had been tested twice by two places and confirmed to be good. Dealer replaced battery but never proved battery at fault. 
34000 mi

US $45
Front bumper seams misaligned with hood of the car. Body clips missing / broken. Dealer tried but doesn't have body shop specialists and every time they put the clips in and reseated the bumper the clips would break or come out. 
46000 mi

US $45
Front bumper was a little loose at the seam where it meets the quarterpanel and hood. Purely cosmetic. Mazda redesigned the bracket so I bought it online and the dealer installed it for no charge. 
94000 mi

US $115
Exhaust leak 

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2009 Mazda Mazda6 4dr Sedan

170-horsepower 2.5L I4 5-speed manual FWD

1000 mi At delivery, paint defect noted on hood by dealer & me. bought car out of state, advised to take to local dealer. Local dealer took photos & called back same day to inform me that I had to take back to selling dealer so I called mazda - waiting reply 
1500 mi Mazda agreed to repair paint defect under warranty. Repairs completed by non-selling dealer. 
5000 mi brought car in again for hesitation/misfire issue. Mazda put data recorder on it, but claims that engine performing as designed. Possibily proceeding with lemon law claim as car appears to have design defect.  
8000 mi CV joint/half shaft failure. covered under warranty 7500 miles on car. No mods - all work done @ dealer CV joint repair- after dealer confirmed issue, part order, arrived but was defective so 2nd replacement part ordered and 10 days after diagnosis repair made under warranty 
44000 mi Door lock screws came loose, mazda issued recall 
58000 mi

US $275
Car had been making unusual noise going over bumps, had been in once before but unable to diagnosis. Ride w/tech & inspection confirmed end links 
71000 mi Tech confirmed steering hitch/looseness but not cause at this point. Further review required 
77000 mi Took car to 2nd mazda dealer for same steering suspension issue. Dealer advised that there is a wear spot on steering column, claims no safety issue but instead of repair suggested I move steering wheel off spot as remedy. Pursuing w/mazda. 
81700 mi

US $200
connection rusted out - local muffler shop welded it back together. 
9920 mi The check engine light would not go out and engine would idle at different revs while in park and sounded like a diesel. Dealer diagnosed and fixed the problem by reflashing the ECM. 
1240 mi PCM flash 

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2009 Mazda Mazda6 4dr Sedan

170-horsepower 2.5L I4 4-speed automatic FWD

1000 mi Key light and starter button light were red. Car's battery had drained on the lot, resetting all codes, so advanced key signals were interfering with each other. Codes were reset and problem was solved. Problem existed on the day of delivery. 
27000 mi Dealership discovered worn struts. Replaced them under warranty. 
54000 mi

US $400
Replaced switch that failed, causing transmission to fail to shift into 4th and 5th gears on occasion. 
60000 mi

US $1200
A unit failed that allowed the keys to operate the car. It was deemed unsafe to drive. Part had to be ordered. 
45880 mi Just changing the computer parts 
6000 mi The walk away lock personalization feature that was supposed to be activated during my previous scheduled maintainance visit was , in fact not activated. This trip to the shop remedied the problem. 
9000 mi

US $40
HID right headlight gives off yellow (incandecscent)color while left side gives off white (flourescent) color. Service manager stated that there IS NO problem. "There was road salt on the lense". I will revisit this with the dealer. 
10000 mi Also build problem found. One Xenon headlight assembly and one halogen headlight assembly installed in car. Mazda promises to correct. 
11000 mi Replaced halogen headlight assembly with xenon headlight assembly (build problem) 
26000 mi Sound from stereo would not come on for the first few minutes of driving and then kick in normally. Radio was replaced (did not fix problem). Amp was ordered and replaced at a subsequent visit. Problem resolved New Bose amp installed to solve sound issue. Problem resolved 
28000 mi Replaced front bumper (from a collision repair) tends to release spontaneously from clips around headlight area. I can snap it back into place but after a few trips it will work its way back out. 
39700 mi Low tire warning light (TPMS) light came on. Problem was tip of valve stem (driver side rear) fell off and needed to be replaced. Extended warranted (GE Cap) honored repair that would have been approx $150 out of pocket. 1 hr in shop. 
51000 mi Steering wheel volume control malfunction. Volume up changes channel:volume down raises volume. Problem is intermitent but more prvalent now. 
68000 mi non specific rattling sound coming from right rear door area at highway speeds 60mph + 
77000 mi

US $350
muffler sounded loud. There was a loose part that had to be replaced not the muffler or pipes...i.e clamps/bolts 
84300 mi

US $86
Rattle coming from under the car during acceleration. Determined to be rotted heat shield. This part was determined to be non essential and the part was removed and disposed of. 
88000 mi Rust appearing bottom drivers side door (inside) where metal is folded and attached (welded?). I am awaiting an answer from my local Mazda dealer on warranty status on this issue. No specific rattle under the rear passenger area of the car persists 
89000 mi

US $50
Rattle eminating from under the rt.rear pass quadrant of the car for about 20k miles at highway speeds (65-80mph+) Tech took the car for a couple of days and isolated the problem as loose rivet/fasteners. Problem solved.Very quiet ride now! Stripped and sanded the rust from the door bottom. Primed and painted the rusted area. I expect I will have to re-visit periodically. AC blower output and air quality deminished. Decided to replace the cabin air filter. Very easy repair . The filter was entirely full of "junk". Noticed immediate improvement of volume and quality of air flow. Rock Auto $21 inc shipping 
102000 mi

US $180
tire stem blew . needed to replace TPMS stem and valve for right front tire. Tire OK 
130000 mi

US $150
Replace faulty TPMS sensor 
3720 mi car hesitating, needed computer update front fender (plastic) was out of line 
8060 mi plastic fender around right front wheel popped out of alignment again, same as previous problem. 
10540 mi transmission chip reflash, car shifts more smoothly now; recall Front passenger side fender coming loose at joint near front headlight. Told to take to a body shop as cause is likely a broken clip inside. Dealer pushed panel smooth but warned it would likely pop out again until I have the clip replaced. 
19840 mi

C $75
Headlight bulb on driver's side out. The manual says not to try and replace it yourself, then gives directions on how to do so, so I tried it. Don't. You must remove the wheel to access the bulb via wheelwell. Ridiculous design. 
22940 mi

C $309
Remote wore out, needed replacing. Dealer said it was just batteries, charged me 22 for labor to replace batteries, one remote still didn't work, replaced under warranty. Now the key falls off the remote. 
28520 mi

C $100
Mazda exhaust system! A 5o cent bolt holding together a gasket connecting muffler to exhaust system broke. Dealer charged one hour labour because they had to punch out old bolt. One hour labour to replace hibeam/daylight running lights. When one burns out, neither side works. 
29120 mi

C $70
passenger side headlight bulb, half hour labour to replace since they have to remove the wheel to access the bulb 
31580 mi

C $100
Now the other side daylight/high beam bulb burns out, another hour of labor. 
32860 mi

C $20
self serve. Had to remove Washer fluid reservoir to replace bulb. 
41540 mi

C $100
Same old problem, driver's side headlight bulb replacement, one hour labour. 
50840 mi

C $200
Gasket replacement in exhaust system. Perennial problem with Mazda 6 and 626 series back to the early 1990s. I have owned four of them, all had the same problem. 
53940 mi Oil change shop noticed extensive rust on control arms etc. Recommended rust proofing treatment. 
2480 mi AC is blowing hot air intermittently. I took to shop while problem was occurring, but dealer could not replicate once car was in shop. It is occurring 1/15 times I drive the car. Waiting for problem to occur more frequently before taking back to dealer 
9300 mi AC blows hot air if not on the lowest temp (15*). If set to 15.5 or hotter AC blows hot air. This only happens when using straight AC, if using auto climate the AC does not blow hot air regardless of what the temp is set to. Dealership created TSB 
9300 mi Engine light on. Part related to emissions control replaced. Engine light is off now. 
24800 mi AC only works when temp is set to lowest temp (15*) otherwise blows hot air. Heater always blows at the hottest temp (32*) regardless of what temp is set to. A/C compressor was ordered.  Returned to have AC compressor installed. Did not fix problem. Dealer ordered entire HVAC control unit. Will bring back to dealer when part arrives. 
24800 mi AC only works when temp is set to lowest temp (15*) otherwise blows hot air. Heater always blows at the hottest temp (32*) regardless of what temp is set to. Replaced A/C & Heat control unit. Problem not resolved. 
53000 mi I had noticed the smell of fuel near the right rear side, by the door. Dealer did a number of checks and tests, could't find anything wrong. I paid for 1/2 hour labor. The smell is still there, however, and I will be returning. 
8700 mi High pitched squeaking noise from the water pump. 
74700 mi

US $1000
AC fan motor needed to be replaced. 
49000 mi

US $5
Plastic shield under body on passenger side had a missing fastener that continually made a flapping sound at highway speeds. I installed a new nylon fastener. 
61700 mi

US $100
the valve stem on the rear wheel corroded and broke such that air could not be added. Had to replace the complete tire pressure sensor monitor. 
72000 mi

US $100
ANOTHER corroded valve stem. the valve stem on the front wheel corroded and broke such that air could not be added. Had to replace the complete tire pressure sensor monitor. 
86000 mi The valve cover gasket was leaking oil so it was replaced. 
98000 mi

US $240
Front right wheel bearing was worn out and needed replacement. 
30000 mi The check engine light would not go out. Dealer diagnosed emission system issue and fixed the problem. 
47000 mi

US $300
Check engine light will not stay off after numerous trips to Mazda dealers over the past four years. 
74000 mi

US $425
thermostat found to be failing, sticking open and shut. Thermostat and cover replaced, coolant replaced. 
75700 mi Replaced right side headlamp. Also changed an accessory belt. 
6000 mi I have a vibration I feel at idle. The vibration comes through the steering wheel, brake and sometimes driver's seat. Dealer cannot find problem of the vibration and MAZDA USA won't bother to send a Service Tech to dealership. 
7000 mi Still get vibration and perhaps sluggish transmission in low gears. Will have to take it in for a separate service call. 
8000 mi Bucking sensation going from 2nd to 1st gear. Sometimes feels as though emergency brake is on. 
13000 mi Under carriage cover dropped down which protects the engine. Reattached by dealer at no cost. 
15000 mi Under engine carriage cover dropped down again. Dealer reattached it at no cost. 
15000 mi One of the two horns in my 2009 Mazda6 failed to work. This was the same problem I had in December 2010. Dealer replaced in 45 Mins. No Charge. Under original warranty. 
20500 mi The piston that opens and closes the glove box had to be replaced for the second time in two years.The piston controls the opening and closing of the glove box 
41000 mi

US $100
Muffler clamp and securing bolt fell off. Had to be replaced. Caused muffler to rattle. 
53300 mi

US $137
Transmission develop what mechanics call " jutter " a slight hesitation in automatic transmission 
58000 mi Left front axle cover was cracked affecting axle. Replaced under extended warranty. Oil cover leaking. 

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2009 Mazda Mazda6 4-door

6-cylinder diesel manual 2WD

63000 mi

£5000
Big end failure. Car scrapped at only 64k 

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2008 Mazda Mazda6 4dr Sedan

156-horsepower 2.3L I4 5-speed manual FWD

60000 mi

US $350
Radiator leaking, was replaced for $350 including labor. 

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2008 Mazda Mazda6 4dr Sedan

156-horsepower 2.3L I4 4-speed automatic FWD

90940 mi

R 3200
normal service, and catalytic convertor engine light constantly on. problem still persists. Too expensive to replace the convertor. 
89000 mi

US $850
Replaced struts and shocks 
95300 mi

US $410
Replaced front right wheel bearing Replaced right rear brake caliper 
103700 mi

US $150
Replaced failed valve cover gasket. 
57000 mi

US $115
Driver's side rear wheel bearing was making loud thumping/humming noise. Verified by dealer. Replaced myself.  Passenger's side rear wheel bearing started making same noise soon after. Also replaced myself. Clear coat on factory rear spoiler began pitting, flaking, peeling off. Brought to independent shop and had repainted factory color. 
63000 mi Driver's side headlight adjuster broke. Headlight beam would move around when driving around corners. Fixed it myself by replacing the whole headlight assembly. Ordered part online. Took about a day to install. 
93000 mi

US $85
Rear drivers side wheel bearing began making very loud humming vibration noise on 650 mile trip. Bought replacement wheel hub assembly with wheel bearing from autozone for $85 and replaced myself. No more vibration humming. 
93700 mi

US $30
Hid headlight bulbs were color shifting due to age and needed replacement. Bought replacement hid bulbs online and replaced myself. 
102000 mi

US $60
Water kept getting into fog light housing in lower bumper and causing bulbs to burst. Had to totally replace fog light housing and bulbs. 
115000 mi

US $250
Power steering pump failed and needed to be replaced. Belt tensioner seized up. 
144000 mi

US $300
Replaced cloudy/yellowing headlight assemblies 
48000 mi

US $50
ECM Reset 
78300 mi

US $560
Came out needing additional work related to emissions. 
72000 mi Right headlight broke down 
72000 mi

US $400
Loud sound and little more vibration than usual at start. I checked this with 2 dealer and 1 mechanics, they said there is nothing wrong. 

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2007 Mazda Mazda6

Engine not specified

45600 mi Ticking Noise from purge valve, according to service ticket. Previously, in dealership 26 days for Cam ticking noise. Not sure what was really going on this time. Hired Lemon Lawyer. 

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2007 Mazda Mazda6 4dr Wagon

212-horsepower 3.0L V6 4-speed automatic FWD

92380 mi

C $600
Both Front Wheel Bearings replaced 
112840 mi

C $300
Flex pipe repair 
43020 mi I feel a little sloppiness in the driver's front control arm/ ball joint. I will have to keep an eye on it. Front exhaust heat shield started to rattle. Fixed with screws. 
77000 mi

US $360
A/C evaporator was leaking from corrosion, and heater core next to it was also corroded. Replacing both required removing the dashboard. Check engine light came on; caused by clogged evaporative leak detection pump. Pump was removed, tested, cleaned and reinstalled. 
77500 mi Check engine light came on again for a while, and then went off. Technician checked the OBD system and found no active codes. Immediately took the car to an emissions testing station, where it passed. 
83000 mi

US $250
Air intake had dry rot and a tear, triggering the check engine light, and had to be replaced. 
85700 mi

US $150
Needed new fan control module because cooling fan for A/C system was running at high speed whenever A/C was engaged. Second time this has happened, and it is common among 2003-2008 Mazda6s. 
91000 mi Engine fans were running on high speed all the time. Replaced fan control module (third time in last two years) under warranty. I've read that the fans draw more amps as they get older, damaging control module, but don't know if this is tru. 
92000 mi

US $55
Liftgate struts failed and could no longer hold liftgate up in open position. Easily replaced both struts in 5 minutes. 

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2007 Mazda Mazda6 4dr Sedan

turbocharged 178hp 1.8L I4 6-speed manual RWD

37200 mi The rear brakes would stick on after disengaging the parking brake. The mechanic lubed the sliders and that seems to have fixed the problem. 
64480 mi Light came on during normal commute. Took to local mechanic who stated the code was for the EGR valve. Cleared the code and drove with mechanic, where code reader could tell valve was cycling (no problem). Valve may have frozen. 
68200 mi

C $107
AC quit blowing cold air. Dealer could not find a leak, but recharged system. AC blows cold now. 
73540 mi Leakage at fitting under compressor. 
88040 mi

C $175
A/C Compressor leaking. Quote $800 for new compressor instaled. Had it re-charged instead. 
42780 mi Check engine came on. Barely able to drive home. Engine would not rev unless gas pedal almost to the floor.Unplugged positive terminal of battery,waited 1-2 minutes and reconnected. Check engine light gone and car back to normal. 
12000 mi

US $160
Purge valve replaced under warranty, all drivetrain oils and oil filter changed 
15700 mi

US $100
Steering wheel clock spring clicking, on order.  Engine knocking, dealer agrees is unusual but waiting for Mazda to give them advice on the problem and solution. 
18300 mi Clock spring replaced in wheel...new spring still makes noise but it's ignorable. Engine still knocking, still can't replicate at dealership. Mazda states that it's normal operation. 
36000 mi

US $1000
Leaking transfer case had to be resealed, parts replaced. All appears to be fine now. 
24000 mi Engine light came on due to sensor, related to fuel system becoming faulty. Replaced under warranty. 
25000 mi Could not get part for leaking front differential. Quoted 1 day but took 3. 
91300 mi

US $310
Left side rear shock was leaking - they need to be replaced as a pair so both rear shocks were swapped out for new. 
117000 mi

US $100
Pulley bearing for compressor went (very) bad. Quote from garage was $2,600 (for complete replacement of compressor which they misdiagnosed as bad). Bearing was $23. Fixed it with an ex-mechanic friend. 
37500 mi

US $280
Front left wheel bearing noise at 38k. Apparently a common failure on this model. 
46000 mi

US $100
Left front lower control arm bushing has cracked and is making a creaking sound when loaded. Dealer diagnosed the issue, but no parts are available. Was told that it isn't a safety issue and that the car can be driven until parts are in. 
47000 mi

US $350
Replaced front left lower control arm on second trip to dealer after parts were not available on first trip. In the meantime, the failure of said part completely destroyed my left front tire. Mazda denied any after warranty assistance. 
48000 mi Progressively worse rattle in valvetrain at startup. Diagnosed as failed variable valve timing (VVT) actuator. TSB found, replaced under drivetrain warranty 
51000 mi Second visit to diagnose a prominent clunk in the drivetrain. Shop "could not duplicate" during first visit in Dec. This time, I took a tech for a ride. He noticed it right away. They had the car for a week, but could not locate its origin. Failed bypass valve in the turbo plumbing. Second failed stock Mazda valve in 50k miles. Was told that Mazda would only cover a portion of the replacement cost, so I told them to forget it and bought a Forge bypass valve as a replacement. Diagnosed/fixed rear window creaking/popping problem in the Speed6. Detached fixing hardware from rear edge of headliner and used taped vise-grips to bend the rear window guide tabs downward toward the front of vehicle to mitigate creaking. 
19840 mi Turbo seals replaced to fix oil leak. 
20000 mi Had DTC P2187 Lean condition at idle on Bank 1. Dealer replaced High Pressure Fuel Pump on engine. Pump runs off of camshaft operating between 485psi and 1885 psi. 
21000 mi Replaced purge valve. Trm levels incorrect. Existing purge valve sticking. 
47000 mi Replaced smoking turbocharger with new updated turbo. 
66000 mi

US $100
Timing Chain replaced 
48000 mi

US $1200
Engine broke two connecting rods and pistons; block was cracked down the middle. 
46500 mi

C $350
Check engine light on, found that it was a purge valve, ordered part and fixed it. Problem seems like it is fixed. 
78740 mi

C $1800
Timing chain, actuator, seals, gaskets. 

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2007 Mazda Mazda6 4dr Sedan

212-horsepower 3.0L V6 5-speed manual FWD

110700 mi

US $1333
Clutch started to make noise and be very heavy. Replaced entire clutch assembly. Something went wrong with the pressure plate and the throw out bearing was ruined. Lining low but some life left. 
122000 mi

US $762
A small plastic part on the water pump housing started to leak coolant. The entire water pump had to be replaced because they do not sell the plastic part separately. 
126000 mi

US $453
Front bypass hose fitting burst, spraying coolant 
120000 mi

US $1250
car refused to respond to throttle, stayed at idle. replace air intake tube throttle body 
136000 mi

US $1300
Clutch slipping at higher rpm, pressure plate clutch disc and throw out bearing replaced 

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2007 Mazda Mazda6 4dr Sedan

212-horsepower 3.0L V6 4-speed automatic FWD

105000 mi

US $750
intake sensors shot, both replaced 
112700 mi

US $800
Water pump failed. Replaced hoses also while in. 
118000 mi

US $700
Fixed engine oil leak. 
126500 mi

US $1400
Replace control arms, new struts 

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2007 Mazda Mazda6 4dr Sedan

156-horsepower 2.3L I4 4-speed automatic FWD

66300 mi

US $80
Not sure why still veering right. New tires too 
80000 mi

US $100
Rear automatic window could not roll up. Mechanic dis-assembled and re-assembled. Now works just fine.  Door could not open from the inside. ABS pump not working Battery didn't last as long as it should have. Rear left window cannot roll down, not yet inspected. 
92000 mi Front left & right wheel bearings worn/ replaced. Motor mounts replaced 
96000 mi Abs pump broke 
107000 mi

US $150
System leak, A/C recharged, blowing warm air 
25000 mi Damaged muffler seal was discovered after I noticed the car was louder than usual. 
171000 mi

US $450
Thermostat replacement 
171700 mi

US $300
*d thermostat need replaced 

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2007 Mazda Mazda6 4dr Hatch

156-horsepower 2.3L I4 4-speed automatic FWD

13000 mi

US $150
Rear under car engine cover came loose, was hanging down, and became cracked after being driven. Dealer said it was due to hitting a parking curb or something, but I believe bolt fell out resulting in part becoming loose. No warranty. 
24300 mi

US $480
Cannot recall exactly, but it was one of the engine sensors that had gone bad. Trip also included an oil change and fuel injector cleaning. 
46300 mi

US $450
Oxygen sensor failed. Was replaced. 
70700 mi

US $400
Replaced the rear motor mount 

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2006 Mazda Mazda6 4dr Wagon

215-horsepower 3.0L V6 5-speed manual FWD

56000 mi

US $700
AC system leak on high pressure hose. Replaced. Oil pan leak, gasket replaced 
61300 mi

US $140
Cooling flange cracked Engine Mounts and strut loosened 
85000 mi

US $125
New battery failure after 24 months,60 month battery, suspect underhood heat given battery placement in engine bay. lower engine mount / torgue strut bushing failed. This one only lasted 20k miles. replaced with AWR unit with polyurethane bushings. 
86000 mi

US $100
Starter bendix sticking, apparently manual transmission models clutch dust accumulation can be hard on this. First rebuild starter marginal though good brand, 2nd OK. 
92000 mi

US $1265
Clutch replacement, pedal had gotten progressively harder and clutch dust was causing binding in starter bendix, though no problem with clutch engagement or operation. 

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2006 Mazda Mazda6 4dr Wagon

215-horsepower 3.0L V6 4-speed automatic FWD

79000 mi

US $40
Air intake hose replaced due to crackingtearing 
80700 mi

US $600
Hi beams flakey. Would come on by themselves Leaking waterpump Lower body trim came loose due to cracked clips. Will re visit once part arrives 
87000 mi

US $800
Exhaust leak Water pump replaced 
94240 mi 2 rear shocks wear leaking, 1really bad the other minor. Replaced all 4 shocks with Bilstiens. 
122760 mi

C $300
Stabilizer bushings, and serpentine belt 
129860 mi

C $1100
Install Serpentine belt, air intake hose from airbox to throttle body,  waterpump, antifreeze and cabin filter. 
31000 mi

US $600
Car stalled and check engine light came on. After that, it ran fine. Diagnostics indicated O2 sensor failed plus the injectors needed to be cleaned. 
50500 mi

US $500
A/C recharge 
72000 mi

US $250
The dreaded Mazda 6 purge valve was replaced. 
108000 mi

US $1350
Rear shocks, front struts, front springs, sway bar links, wheel alignment. All items replaced were original parts. 
130000 mi

US $800
Replaced water pump and related belts. 
62400 mi

C $2000
water pump leaking leaking head gasket catalytic converter noisy 
62620 mi

C $250
warning light of the engine on 
62620 mi

C $2600
Corrosion on bundle wires from motor send all wrong messages to engine, transmission and computer. It took 2 months and 30 hours of labor to find the problem. They changed many parts before finding the problem. 
96000 mi

US $60
Whining noise and coolant leaking from the water pump. 
39000 mi Defective drive belt pulley Oil seal leak 
67000 mi

US $150
Oxygen sensor replaced 
69000 mi

US $400
power steering fluid line leak 
76000 mi

US $1300
Oil leak from valve covers Front wheel bearing replaced 
86000 mi Recharge, will return in Oct to see if leaks are present 
90000 mi

US $1345
oil leak rear main seal 
42000 mi

US $280
Driver's side lumbar support broken, fixed under warranty. We were experiencing shock-shifting behavior in 1st to 2nd gear shift. Dealer flushed and replaced transmission fluid. Loud noise from engine compartment on cold start-up. Diagnosed as a bad idler pulley. Belts and pulley replaced under warranty.  
72000 mi

US $1000
Hose leak Front O2 sensor replaced, also cracked vacuum hose 
50840 mi Also some rust on this Mazda. The cable for the lumbar support in the driver's seat snapped some time ago as well. Once the transmission is hot and I'm in 6th, any hard acceleration will cause the transmission to get confused then slam into gear. TSB for this, but I'm not in VIN range. Will have to beg them to warranty it. 
54320 mi

C $1800
Main PCM replaced - issue not fixed TCM replaced at owner cost - not covered under Powertrain warranty in Canada (it is in the US) Transmission replaced under warranty 
62620 mi

C $130
Have had 2 Motomaster batteries die in one week. 
63860 mi

C $350
Suffered sporadic no-start condition. Starter replaced and problem has not reoccurred. 
83700 mi

C $1500
Oil leak from crankshaft seal repaired.  Suspension components replaced Peeling rust on driver side rear wheel well and arch repaired. 
88660 mi

C $900
Stuck caliper and full pad/rotor replacement on all four corners 
98000 mi *??? n/a awd asd asd asd asd asd asd asd asd asd asd asd asda sd asd asd asd asd asd asd assd 123 123 123 ....................................................................................................................................... 

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2006 Mazda Mazda6 4dr Sedan

turbocharged 178hp 1.8L I4 6-speed manual RWD

21000 mi When accelerating with a load on the engine (full car or up a slight grade) from relatively low rpms (2500-3000), the car will sometimes shudder violently, stop accelerating, and ping. Dealer unable to replicate problem despite 20+ mile test drive. 
24000 mi Shudder and hesitating under moderate acceleration. I was able to reproduce the problem when I took Mazda tech on a test drive. He recorded data via the OBD-II port and sent to Mazda, who confirmed the issue. 
26000 mi Returned again for engine hesitation and shuddering under moderate acceleration. Dealer replaced boost solenoid tube, which was found to be cracked. Problem resolved. 
56000 mi

US $120
Weak battery needed replacement (Was original batter still) 
66300 mi

US $100
Passenger side rear differential seal seeping 
75000 mi

US $100
Replaced worn front sway bar links and bushings 
80700 mi

US $600
Replaced worn struts. Replaced rear motor mount Replaced front swaybar links 
84700 mi

US $300
VVT actuator noisy on start up, was just outside of warranty extension, common issue that is covered for 70,000 miles under warranty. Replaced VVT actuator, timing chain and tensioner. 
101000 mi

US $190
Replaced worn rear engine mount (dog bone) 
108000 mi Both front struts worn out and driver front strut mount badly worn (coming apart). New parts ordered. 
114000 mi

US $30
Shifter pivot seal leaking 
38000 mi Replace clogged EGR valve, free under 7yr CA smog warranty 
46000 mi Rear differential seal, where half-shaft / axle plugs into it was leaking. Was on the passenger side. Noticed when I was changing wheels to my winter set. Called dealer up and told them and they ordered the parts ahead of time. 
68000 mi

US $630
EGR valve went bad 
43000 mi

US $190
Replaced belt tensioner. 
45000 mi

US $950
Replaced rear brake pads, rotors & calipers (left & right). The rear left caliper was sticking to the rotor, and the pad was completely worn out. 
47500 mi

US $500
Front Brake pads and rotors replaced. Caliper was sticking. Calipers were serviced. 
42000 mi

US $1200
Hesitation resulting from poor fuel pressure from fuel pump. 
52000 mi Dust boot on front suspension 
56000 mi

US $275
Thermostat and temperature gushed were replaced. 
61000 mi

US $380
Wheel bearing front right wheel was leaking 
62000 mi

US $350
Replace rear shocks 
76500 mi

US $135
Boot cover replaced 
92000 mi

US $620
Replace EGR valve. 
94000 mi

US $1220
Replaced both lower control arms  and passenger side axle shaft. 
110000 mi

US $145
Replaced battery. 
115000 mi

US $850
Replaced both rear calipers. 
5000 mi Replaced fuel pump. OEM turbo seals leaking around 4K miles, took 2 trips in June to get it fixed. Visit 1 - replaced fuel pump, 2 days later still smoking. Visit 2 - 14 days in shop, new Hitachi turbo and gaskets. Problem solved. 
48000 mi Transaxle seal damaged, replaced. 
17000 mi Had carbon buildup in turbo valves requiring about $1000 worth of repairs covered by aftermarket warranty right before I sold it. 
11000 mi very smokey oil, smoke occasionally extreme; replaced turbo 
44000 mi Faulty EGR valve causing CEL to come on 
47000 mi

US $430
Bushings replaced on front sway bar. Repair not entirely successful. 
61000 mi

US $550
Replaced front struts. 
9000 mi trunk button for trunk lock did not work--ordered new one 
10000 mi New button for trunk lock installed. 
18000 mi Power steering noise that was fixed by adding more fluid (apparently it was a bit low) They could not find a leak and it still looks like fluid level is getting lower (albeit very slow). Probably another trip to the dealer is in order in a near future. 
20000 mi Whining noise when turning steering wheel, loss of power steering fluid. Steering gear replaced. 
27000 mi Smart key was not working all the time - trunk antenna and lock replaced. 
131300 mi

US $300
New spark plugs and oil 
148700 mi

US $1100
Brakes/rotors/wheel bearings 
26000 mi TSB for emissions issue. The clutch has always had a difficult engagement and there is a TSB concerning it. They didn't consider my car to have any problem, even though I wanted the clutch assembly replaced under the TSB and my VIN number fell within the acceptable range. Check engine light came on, which cuts power to the turbo. They said it was running rich, but never stated a reason. I think they just reset it, but the problem never came back, so it was fixed. 
3000 mi CEL thrown for a bad Tumble Control Valve. New intake manifold was ordered and replaced. 
19000 mi O2 Sensor malfunction. 
23000 mi Sputter under heavy acceleration. 
45000 mi Rust on front edge of hood. Hood was replaced and painted under warranty. 
54000 mi

US $70
Exhaust Gas Recirculator (EGR) valve threw a P0401 code. Removed, cleaned, and reinstalled. Drivers side swaybar end link was clunking at low speeds. Replaced the part. 
60000 mi

US $90
Replaced drivers rear caliper due to seizing on the rotor in cold or rainy conditions. 
66300 mi

US $200
Abs sensor wire stripped and caliper was seizing again. 
74000 mi Performed tsb for steering clunk. 
87000 mi Shot wheel bearing 
74400 mi

C $900
REAR WHEEL BEARINGS 
83700 mi

C $413
ENGINE LITE ON DIAGNOSE, THERMOSATE,REPLACED,AND NEW COOLANT, CLEAR CODE, CHECK ALL HOSES, PRESS TEST COOL SYSTEM ALL CLEAR 
Power take off (t-case) exploded. Smoking K04 turbocharger. 
110000 mi

US $150
Driver side rear upper control arm bolt broke. 
115000 mi

US $350
Replaced both the rear motor mount and the transmission motor mount. 
129700 mi

US $1000
Clutch pedal broke, the pressure plate failed distroying the clutch. To fix the car it required a new clutch pedal, new master and slave cyl, new clutch, fly wheel, transmission gear oil. I also replaced rear main seal. Replaced PS Cooler. 
131000 mi

US $500
Failed VVT actuator 
83000 mi

US $450
Thermostat was stuck open. 
88000 mi

US $35
Battery clamp bolt fell out, clamp got loose 
106000 mi

US $4500
The engine threw a rod through the block and dumped it self all over the road. There are inherent design problems with the 2.3L MZR Turbo engine that make complete failure very likely. Owners/victims call it ZZB for "Zoom-Zoom-BOOM". 
108000 mi

US $125
EGR Valve cleaned (and one gasket needed to be and was replaced). It took 2 days for the mechanic to have a gasket delivered. Standard tune-up that replaced spark plugs. Check engine light had been on intermittently. Diagnosed as a clogged EGR valve. 
109000 mi

US $265
PCV valve replaced. Oil had apparently been leaking into other parts of the engine and likely caused previous EGR problem according to mechanic. 
112000 mi

US $134
Gasket leak found to be root cause of previous issues with oil entering other parts if the engine. Also replaced spark plugs, which were not correct for the Mazdaspeed 6 by local mechanic. Ac blew cold at highway speeds but blew lukewarm when idling or driving slow. Gradually got worse. Recharge included diagnostic, quoted at $1800. Decided to get second opinion, but compressor seized and clutch disintegrated. Compressor and clutch seized and broke apart, sending metal shards throughout the system. Replaced compressor, clutch, expansion valve, condenser assy, flush and recharge. Took 4 days due to hard to find parts. 
122000 mi There was a leak in the seal, and the dealer mechanic said $1,100 to replace seal, but no guarantee it'd fix the problem (rough shifting into second gear), and may need transmission replaced later $6,800. 
51700 mi Turbo had to be replaced. Mazda covered under courtesy warranty extension. No cost to me, and a free loaner for the duration of the repair. 
57000 mi

US $300
Valve seal cover leaking and replaced. Differential seal leaking and replaced. Replaced failed passenger side engine mount. 
57000 mi Leaking heater core. Failing AC compressor. Bad first and second gear synchros making it very difficult to shift between 1-2 and 2-1. 
94820 mi

C $1500
Replaced timing chain and VVT actuator on purchase of vehicle. Was an expected repair when I purchased the car. 
131440 mi

C $500
EGR Valve 

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2006 Mazda Mazda6 4dr Sedan

215-horsepower 3.0L V6 5-speed manual FWD

111000 mi

US $300
Engine Mount (T-bone) replaced. 
110660 mi

C $150
Front spark plug popped out of the engine for no reason, have to put a helicoil. No other colateral demage, i got lucky. 
45000 mi oil pan leak 

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2006 Mazda Mazda6 4dr Sedan

215-horsepower 3.0L V6 4-speed automatic FWD

16000 mi Lumbar in driver seat broken..part replaced. 
32000 mi CEL came on. Loose fuel cap triggered CEL. 
73000 mi

US $50
Replaced cracked air intake hose (probably original 10yr old) with new Dorman. Had obvious sign of previous "repair" with some kind of caulk or glue applied to cracks. 
81220 mi

C $230
Exhaust flex pipe rusted. Replaced. 
104160 mi

C $154
Replace coolant fan module, fan loud and would stay on after car shutoff. 
118380 mi

C $300
Tensioner froze, belt thrown off, drove on battery until it died. Both replaced, battery charged. 
230000 mi

US $206
Limp mode, knock sensor needed replaced. 
98300 mi

US $250
Air intake hose cracked, replaced hose and boot 
99000 mi

US $450
Ac compressor failed 
129000 mi

US $225
Drive belt y tensioner pulley snapped replaced drive belt tensioner pulley, timing belt 
132300 mi

US $90
Driver side back caliper seized and had tut replace caliper and brake pads 
113000 mi

US $825
rear pads, rotors & calipers serpentine belt replacement and a gasket leak 
70680 mi

C $220
Oil pressure sensor was replaced. 
71300 mi

C $445
Timing belt tensioner. 
43000 mi A/C would blow warm air at times when the car would come to a stop. A new TSB issued recently deals with the problem. 
49000 mi A leaking motor mount was discovered by mechanic. Part had to be ordered first in order to fix. Motor mount replaced. 
61000 mi

US $300
Bad Knock Sensor was causing a check engine light and reduced performance. Knock sensor was replaced and I had 60,000 mile maintenance done as well. 
64000 mi

US $200
Started feeling slight hesitation during acceleration. When fuel gauge got down to below 1/4 of a tank it would hesitate badly and car would lurch. Problem resolved by replacing fuel pump. 
73000 mi

US $164
Knock Sensor went bad again. 
75000 mi

US $61
Knock Sensor issue returned after a couple of weeks. Decided to replace myself instead of taking to dealership due to rental car costs even though the part and labor was under warranty. Has not come back since. 

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2006 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 5-speed manual FWD

122300 mi

US $300
The thermostat was stuck open. This is a hard job per where the device is located behind the passenger side wheel. Mileage improved greatly after the fix. 
95300 mi

US $1000
Clutch replaced 
100000 mi

US $240
caliper replaced 
83080 mi

C $348
Day 1 was brakes, pads and rotors. Day2 was a new caliper rear passenger side 
85340 mi

C $574
Rough start, check engine light. Replaced PVC intake hoses. *d Check engine light came on and rough start. A week later, check engine light on again. Took to a different dealership. After changing, pvc hoses, mass air flow sensor, oxygen sensor, changed fuel pump. 
96100 mi

C $791
First, Battery light on over 2500 rpm. After about 200km on highway, all lights on, then car died. Towed to dealer. Ordered alternator and installed. All good now. 
115000 mi

US $100
Replaced driver's seat belt. Was torn and did not retract correctly. 
120300 mi

US $2500
Whining tranny, and hard to get in gear. Upon opening discovered problems that req'd replacement with a used unit. Also did clutch. 
120700 mi

US $500
Check engine light, plus minor drivability problems. Message was bank 1 lean. Reset once, came back in a week or so. Replaced solenoid and valve in the intake runner. 
121000 mi

US $310
Check engine light back on (see previous repair). This time, changed O2 sensor 
122000 mi

US $350
Check engine light came on again, same code. Mechanic narrowed it down to MAF sensor or fuel pump. Changed MAF for a week to see if that fixed it - it seems to have. 
112000 mi Screw for the driver side sun visor constantly comes loose. Has to be tightened every two months or so. 
115700 mi

US $250
Engine temp sensor went out. Had to have it replaced. 
116000 mi

US $2500
Tensioner on timing chain went bad. Skipper several cogs. All valves destroyed, two pistons destroyed. Had to replace engine. 

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2006 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 4-speed automatic FWD

68000 mi

US $300
New shocks and front struts. 
88000 mi The MAF sensor, the PCV hose, and the gas cap were replaced. 
54000 mi

US $102
Replaced the original battery 
76000 mi

US $1455
Replaced intake manifold, oxygen sensor, spark plugs, and burned out parking headlight 
76500 mi

US $399
Replaced Thermostat and hose that was leaking 
78500 mi

US $780
The timing belt jumped and had to be replaced. Also replaced was oil and spark plugs. 
36000 mi Clock shorted out. Would not keep time 
66000 mi

US $70
Gas cap and evap check valve 
60000 mi

US $165
Purge valve had to be replaced. 
81000 mi

US $379
Thermostat housing had to be replaced and the temperature gauge was running too cold 
144700 mi

US $120
Inner C/V boot cover. Passenger side. 
165000 mi

US $410
PCV hose and PCV gasket replaced. Head cover gasket replaced. 
171000 mi

US $70
Rusted cable to the starter. Car was hesitant to start. At the same time battery died. 

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2006 Mazda Mazda6 4dr Hatch

215-horsepower 3.0L V6 5-speed manual FWD

97340 mi

C $250
Tie rod 
99200 mi

C $100
replace water pump,  crank seal, oil pan seal,  drive axle seal,  and fuel return vapor solenoid.  
19000 mi Lumbar Support repair for Driver's Seat 
42300 mi

US $473
Replaced cracked rear transmission mount 
48700 mi

US $59
Had to replace Lift Supports for Hatch. 
50000 mi

US $50
Smell of oil burning. Had dealership check for MTX, Oil Pan, Valve Cover, Brake and Timing Cover leaks. No issue found, if it re-occurs, dealership would like me to bring in at no charge. 
58000 mi

US $874
Oil leak from around valve covers. Replaced valve covers, gaskets and seals. 
69500 mi

US $373
Purge valve stuck in open position - replaced. 
78700 mi

US $587
Right front strut was leaking. Had both struts replaces and front end alignment performed 
103000 mi

US $120
CEL - running too lean. Examined intake accordion hose and found large crack allowing extra air into throttle after MAF sensor. Replaced accordion hose and CEL cleared itself after a few driving cycles. 
108000 mi

US $103
Heard squeak and clunk noises when shifting; mechanic found motor mounts were very loose. Replaced one missing bolt, tightened all mounts, and problem was solved. 
121000 mi

US $50
Rear window defroster quit working. Shop said replacement is only guaranteed solution, but I asked them to try fixing the broken tab (connection). It didn't fix the problem though. 
18000 mi Windshield wipers quit working. Dealer advised an electrical contact was loose in steering column. Fixed w/in 1 hour of bringing it in. Said he had never seen this in a Mazda6 before. 
85000 mi

US $400
Replaced oil pan gasket. Car was slowly leaking oil. 
97000 mi

US $150
Struts that hold rear hatch open failed. Hatch would stay up. Had them replaced (2). 
103000 mi

US $375
Master/Slave cylinders on clutch failed & were replaced. 

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2006 Mazda Mazda6 4dr Hatch

215-horsepower 3.0L V6 4-speed automatic FWD

106640 mi

C $449
Water pump failed. 
141000 mi

US $48
Car was sputtering and cutting out a lot, especially under load and up hills. I replaced all 6 ignition coil packs. 
51000 mi

US $430
Cable for driver's seat lumbar adjustment broke so the lumbar support was replaced. 
73300 mi

US $1000
AC compressor and a couple of other parts (don't remember) were replaced. Dealer had to order parts 2 separate times, requiring a total of three days in the shop. 
83000 mi

US $43
Replaced hatchback lift supports. 
106700 mi Leak in AC Water pump replaced 
134000 mi

US $370
Cracked air intake was replaced and an unrelated fuse was replaced. 
37820 mi

C $791
Ignition coil on cylinder number 1 was toast. Car ran rough as not running on all cylinders. As check engine light was flashing I had to tow it to the dealership for diagnosis. Towing charge $104, repair cost including taxes $791. 
54560 mi Hatch struts worn out 

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2006 Mazda Mazda6 4dr Hatch

160-horsepower 2.3L I4 5-speed manual FWD

130200 mi

C $250
calipers 
157480 mi

C $300
thermostat 

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2006 Mazda Mazda6 4dr Hatch

160-horsepower 2.3L I4 4-speed automatic FWD

81400 mi

C $600
Parking break locking up. Replaced parking brake cable. 
84720 mi

C $800
Car was running rough and surging on idle. No engine code. Dealer replaced spark plugs and updated ECM. After update a code indicatinig Oxegen sensor 1 defective. Replaced. 
87420 mi

C $350
Rear Calipers passenger side not fully releasing, drivers side not fully engaging. Replaced both rear calipers. 
100000 mi

US $32
Replaced cooling system thermostat. Was sticking open causing engine not to maintain proper temperature. Generated Fault code: P0125. Symptoms: occasional rough idle and reduced fuel mileage by about 2 to 3 mpg 
113700 mi

US $265
A/C compressor discharge hose leaked. Replaced hose, evacuated and recharged system. Cost of hose $75. Cost of refrigerant $16. Remainder of cost was for tools to complete repair. 
131000 mi 5spd ATX developed pronounced shift shock usually between 3rd and 4th gears. Got worse over time. Especially bad when accelerating harder than normal or going uphill. Trans fluid changes regularly. Bad solenoid chamber/housing. 

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2006 Mazda Mazda6 4-door

4-cylinder manual 2WD

100000 mi

US $200
Coolant sensor 

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2005 Mazda Mazda6

Engine not specified

68200 mi

¤700
*sep 2011 boots/bushings cracked (USD 500) *jul 2011 alternator became weak (USD 90)...replaced a part with another one from a used car *mar 2011 oil cooler leakage (USD 110..replaced it with new) 
73000 mi

US $700
EGR value failure.....this is in the owners Manuel that EGR need to be inspect in 75,000miles 

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2005 Mazda Mazda6 4dr Wagon

215-horsepower 3.0L V6 5-speed manual FWD

37200 mi Fan module replacement. 

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2005 Mazda Mazda6 4dr Wagon

215-horsepower 3.0L V6 4-speed automatic FWD

72000 mi

US $600
Something with cylinders 
49600 mi

C $350
air intake hose cracked 
52000 mi

US $570
o2 sensor went bad and air boot cracked 
52000 mi minor oil leak 
43400 mi

C $800
Wheel nut/stud were stripped, needed replacing Left rear shoulder belt retractor was locking, couldn't extend belt to put it on. Dealer lubed retractor, problem seems to have been fixed Dealer cleaned out carbon buildup they claimed was in FI system, didn't feel like arguing about it 
86020 mi

C $600
Both CV joints were worn out, replaced whole axle assemblies with aftermarket parts (OEM no longer manufactured) 
88040 mi

C $600
For a few months, heard rattling when accelerating under load. MIL was lit, dealer read out the codes. Code indicated a lean condition. On diagnosis, intake snorkel was cracked, allowing in more air than the MAF could sense. Dealer replaced. Engine has been occasionally shuddering under load and at idle. One of the codes read out during this diagnosis indicated a few misfires on one cylinder. Dealer recommended spark plugs be replaced. 
93460 mi

C $800
While driving on the highway, traction control light came on, and coolant temp gauge started going crazy. Got off the highway, parked and watched coolant drain out. Serpentine belt tensioner had failed, killed the belt, both were replaced. Replaced plugs, in keeping with previous recommendation relating to shuddering under load. 

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2005 Mazda Mazda6 4dr Sedan

215-horsepower 3.0L V6 5-speed manual FWD

71000 mi

US $220
Engine noise at low RPM on T-giving day. I drove it ~100 miles home, no change in noise, no other symptoms. Parked for a week, then took it to shop. Crank seal had failed, leaked out most of the engine oil. Seal replaced. Noise abated. 
15500 mi The clip to hold the adjustable headrest on the passenger seat in the up position was missing. Headrest would fall back to bottom position each time headrest raised. 
17980 mi Replaced head rest clip in passenger seat. 
25420 mi Check engine light came on. Needed to replace solenoid in engine bank. 
26040 mi Improperly greased CV joint that was grinding in cold temperatures. 
26660 mi Successful repair of cv joint... added grease/replace cv kit. 
35340 mi

C $35
Burnt out headlight. 
37200 mi

C $500
Leaking block heater 
54560 mi

C $330
Passenger side hvac fan failure and replacement 
71000 mi I visited a body shop to quote a rust repair (quarter panel needs replacing). 
72000 mi

US $200
Transmission torque arm broke. 
85000 mi

US $200
Water pump pulley bearings were going. Pulley replaced. 
85700 mi

US $150
Idler pulley was making noises, so I had it replaced. 
89000 mi

US $220
Needed to replace one coil. 
90000 mi

US $45
Plugs. 
94000 mi

US $25
Loose clamp on flex hose. Removed. 

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2005 Mazda Mazda6 4dr Sedan

215-horsepower 3.0L V6 4-speed automatic FWD

83000 mi

US $200
Hydraulic motor mount replacement. 
89000 mi

US $383
Valve cover leak 
96000 mi

US $1000
Engine mount studs stripped and engine fell. 
97000 mi

US $1300
*d Main studs that hold engine to mount bracket snapped,causing engine to fall damage to ac and drive shaft. Oil leakage 
100700 mi

US $3000
Timing cover leak hitting exhaust 
152000 mi

US $50
Oil in coolant- mechanic said not head gasket, and didn't seem concerned. I'm inclined to think a head gasket is cracked somewhere, possibly from a time the car overheated. 
78000 mi

US $650
Radiator plug cracked or something. Replaced radiator plug and fan. 

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2005 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 4-speed automatic FWD

35960 mi

C $10
*Frozen fuel line. Solved with gas-line antifreeze, either in air box and squeezing/wiggling of the fuel lines in the engine bay. 
52060 mi Engine light came on. With scan tool indicated MAP sensor issue. Unable to locate sensor to further diagnose. Will be taking to mechanic to diagnose & repair 
53320 mi

C $130
Repair completed by self, with correct part (MAP sensor) ordered from dealership. previous repair trip to mechanic resulted in replacing of incorrect part (barometric pressure sensor) which was located behind battery vs. MAP in intake man. 
104760 mi

C $13
Engine would stall and restart under low speed driving,engine light would come on.Replaced gas cap. Fixed problem and car drives better than ever! 
106020 mi

C $100
replaced automatic transmission turbine speed sensor. 
122760 mi new thermostat 
137020 mi

C $300
battery and alternator 
71000 mi Had to replace engine, out of warranty 
74000 mi

US $205
Air intake tube torn... 
105000 mi

US $215
Belt tensioner went bad 
113700 mi

US $122
Bad cylinder 5 changed all spark plugs and no.5 ignition coil, replaced all upper intake gaskets 
121000 mi

US $40
Ignition coil #6 was bad 
108000 mi

US $350
The thermostat was stuck open. 
49180 mi Loose feeling in the steering wheel, slight click over bumps at low speed. Lubricated steering column with Castrol Syntec grease. There's a TSB and updated grease from Mazda, but any thick grease works fine. 
60140 mi

C $113
Thermostat was weak, temp would drop to about 1/4 of the gauge when the engine was being revved/highway. Replaced thermostat, flushed coolant. Changed transmission fluid - shift quality improved, no more hard shift into 2nd gear 
66920 mi

C $35
Occasional slippage when shifting into 4th gear. RPM briefly go up then down. Changed filter, switched ATF to Castrol IMV. I think it's a programming rather than a mechanical issue. Otherwise tranny is shifting great. 
72540 mi

C $550
Replaced fuel pump 

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2005 Mazda Mazda6 4dr Hatch

215-horsepower 3.0L V6 5-speed manual FWD

C $150 Badly stuck lifter. Was repaired with degreaser. 
194000 mi Rod bearing pieces showing up in oil. Replaced rod bearings. Need to also replace exhaust (with upgrade to 2006 MY configuration). 
71300 mi Bought the car used. Had an issue with ignition coil when purchased - repaired by dealership at no cost. 
14000 mi Starter making strange noise Interior paneling detached. Had to order replacements. Interior paneling detached. 
34000 mi I noticed leaking oil in the garage. They reported that it was a bad oil pan seal and would have to be ordered and replaced. 
34300 mi

US $400
The oil pan gasket was replaced. They said it was expensive because the exhaust system had to be lowered to access it. 
43500 mi

US $60
I had an engine light, I took it to a Ford dealer, and their system said it was an gas tank evap code. They cleared it and it hasn't come back since. 

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2005 Mazda Mazda6 4dr Hatch

215-horsepower 3.0L V6 4-speed automatic FWD

107000 mi

US $1000
Bank 1 cat failure. Replaced ALL catalytic converters with MSDS headers. Poor design of Mazda/Ford DuraTech V6 engine having pre-cats coming off of engine. Materials inside break down and go back up into engine and causing engine failure. 
129000 mi Downshifting hard 5th to 4th. Tensioner pulley wore so much it shredded the belt. Car shut off, coolant exploded from reservoir. Replaced pulley, belt, and coolant. Engine bay started smoking, smelled really bad in the cabin while on the thruway. Checked engine, leaking transmission fluid. Assuming tranny problem was from mechanic shop mistake when refilling fluid. 
69500 mi

US $390
EGR valve bad. Replaced and intake cleaned. 
72000 mi

US $100
A harsh shift from 5th to 4th(6sp auto) suddenly started and occurred every time. Dealer "looked at it" & said they do not repair transmissions, only replace. Took to trans shop, could not replicate problem. Problem has not occurred since. 
101000 mi

US $980
Clock/Radio/AC display LCD needed to be replaced 
118000 mi

US $2200
Engine valve determined to leak oil/was replaced, spark plugs replaced, brake rotors resurfaced, transmission fluid flushed/filled, oil and filter serviced, cabin filter replaced. Driver's wheel bearing went bad/was replaced. 
121300 mi

US $600
Water pump pulley seized in cold weather. Caused radiator to overheat, spilling radiator fluid all over. Replacement parts and labor < $600 
137700 mi

US $600
Worn out bearing making awful noise. Replaced for $$$. 
153000 mi

US $1393
Replace alternator,  replace fan control unit, replace left front bearing 
163000 mi

US $350
Fog and driving lights replaced. Tires rotated.  Headlight assemblies cleaned/refinished, oil changed. 
199000 mi

US $300
The transmission mount was broken and needed to be replaced. This issue was discovered during the repair and was not the reason the car was brought in. 
79300 mi

US $420
Needed new coil. This one coil is under the intake manifold. That had to come off first. 

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2005 Mazda Mazda6 4dr Hatch

160-horsepower 2.3L I4 5-speed manual FWD

79360 mi

C $180
Faulty fuel pump had to be replaced. Numerous trips to the dealer were required as they could not replicate problem if the car had over 1/4 tank of gas. *Battery replaced 
135700 mi

US $868
Clutch was releasing high and didn't feel crisp. Was replaced. Price includes clutch lining, which was a wear item (I don't have parts breakdown.) 
141000 mi

US $930
Valve cover gasket was leaking, requiring replacement of ignition coil in Cylinder #1. Valve cover gasket, ignition coil, spark plugs replaced. Right muffler detached due to corrosion. Repair subcontracted out to independent exhaust shop, repaired without replacing parts. 
149700 mi

US $70
P0128 code and some stalling when engine not warmed up, in cold weather last winter. Replaced thermostat. 
151700 mi

US $413
Replaced PCV valve, PCV hose, intake manifold gasket, as an attempt to stop a problem with oil consumption (1 qt / 400 miles). This didn't seem to help the problem much, if at all. 
154000 mi

US $70
Stuck brake caliper. Replaced caliper. 
155000 mi

US $40
Lower motor mount (torque strut) rubber was cracked. Replaced it. 
155700 mi

US $10
Replaced driver's side headlight 
156300 mi

US $100
Clutch pedal became difficult to press; noticed that the return spring bushing was cracked and falling apart. Replaced the entire clutch pedal assembly. 
157000 mi High oil consumption never fixed. 
125000 mi

US $269
Thermostat was stuck open. It was replaced. 
141000 mi

US $36
Blower fan resistor needed to be replaced 
146700 mi

US $480
Rattle from front end, replaced both lower control arms 

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2004 Mazda Mazda6

Engine not specified

132000 mi

US $500
Water pump belt tensioner siezed up, causing the engine to over heat. Repair included replacing the tensioner and belt as well as performing a cooling system flush. 
136400 mi

C $650
starter 
147560 mi

C $500
Replaced alternator. Transmission was on its way out. Brake lines needed to be fixed. Rear sport suspension cracked. Muffler needed to be repaired. AC gone. 
86000 mi

US $4000
Have been taking the car to the dealer for over a year now same problem occurs every time the runs fine then starts to shudder and wont accelerate you have to shut the car off and start it again 
86000 mi

US $2000
Turned out to be electronic throttle system sensors a an b plus a short in wire harness this has stopped intermittent surge and having to shut off car and restart 

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2004 Mazda Mazda6 4dr Wagon

220-horsepower 3.0L V6 5-speed manual FWD

61380 mi Broken engine mount replaced. 
120000 mi

US $500
hose connected to pcv valve. 2 dollar part, 500 labor to get to the stupid thing! 
58000 mi

US $40
Check engine light attributed to loose gas cap. 
94000 mi

US $600
Replace struts (F&R) 
94000 mi

US $280
Check engine light on; needed a sensor replaced Replaced rear valve cover gasket to repair significant oil leak 
104000 mi Heatshield rattle, clamped at no-charge while in for OLF. 
112000 mi

US $550
Main bearings worn out and replaced TSB on check engine light on related to a minor leak in evap system; shop advised that dealer will need to clear the code from memory before leak can be fixed & car will pass NJ emissions testing in NOV 
124000 mi

US $150
Backup light switch failed & successfully replaced 
144000 mi

US $120
Thermostat failed, car overheated, pressure buildup blew out sensor. Thermostat & sensor replaced 
55180 mi

C $400
sunroof shattered while in the tilt position. Part arrived next day from dealer, installed, adjusted, good as new! 
71920 mi

C $700
front wheel bearing and CV shaft replaced on driver's side due to whirring noise coming from bad bearing. 
81220 mi

C $230
Front passenger side wheel finally was bad enough that replacement was neccessary. Wheel bearing was supplied by owner and installed by private repair shop. 
100440 mi

C $90
Coil pack on Cylinder 6 went bad...had been showing symptoms every time the relative humidity took a jump...would start misfiring. Flexible rubber clutch hose between master and slave cylinders burst 
112220 mi

C $500
Cel displaying catalyst issue. Replaced fouled spark plug, ignition coil, and O2 sensor. Front struts replaced with Bilstein HD's 
113460 mi

C $65
CEL still on with P0431 code replaced second, downstream O2 sensor...CEL light came on again after 3 days (nothing more to replace other than pre-cat). 
117800 mi

C $800
after replacing all other components, the cat had to finally be replaced. I supplied the replacement cat and paid labor for the shop to install. 
88000 mi

US $400
Car overheated. Radiator hose replaced. Another part (air intake hose?) also replaced since it looked like it was about to fail, per dealer. 
93300 mi

US $350
clutch stiff. hydraulic fluid replaced clutch stiff. master and slave cylinders replaced. still very stiff. driver seat moving slightly when taking corners. bolts tightened. still moving slightly. 
186000 mi

US $200
Coils and plugs Intake pipes replaced 
197000 mi Audio-HVAC MFD failed. The uP has poor soldering on it to the pcb so I disassembled and VERY carefully re-soldered all connections. I understand that this is a function of the low lead RoHS construction and heat causes embrittlment and breakage. 

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2004 Mazda Mazda6 4dr Wagon

220-horsepower 3.0L V6 4-speed automatic FWD

146000 mi coolant got into engine. Just after I replace coils and plugs. Engine is dead. Car was scrapped *d coolant got into engine. Just after I replace coils and plugs. Engine is dead. Car was scrapped 
86000 mi

US $260
When weather got warm and we would turn wheel or go over bumps, car made clunking noise in front. It turned out to be worn inner bushings in lower front control arm. Could've just replaced inner bushings but couldn't tell if others are bad. 
103000 mi Engine was idling rough and engine light came on. Higher RPMs did not have problems. OBD reading said error code was P0171 and P0174, which means engine banks 1 and 2 are too lean. I used cleaner on the MAF and replaced sorta cracked intake. 
104000 mi Engine was idling rough and engine light came on. Higher RPMs did not have problems. OBD reading said error code was P0171 and P0174, which means engine banks 1 and 2 are too lean. Turned out to be cracked PCV hose by firewall. Add fuel system cleaner. 
115700 mi

US $13
Engine idled rough. Check engine light was on. ECU code says bank 1 and 2 are lean and cylinder 5 misfire. Found PCV elbow hose is cracked. Replaced and engine idles better. 
118000 mi

US $127
Replace battery. 
54560 mi Worn out coil boots were arcing causing bad hesitation and juddering at most RPM. Replaced coil boots and the engine is smooth. Mechanic replaced spark plugs as well. 
58240 mi

C $200
New front and rear pads, new rear disks and calipers.  Transmission leak due to loose gear clamp 
61160 mi

C $1200
Diagnosing/attempting fix of worsening misfire. Replaced 3 rear coil packs, MAF, new intake gasket, etc... This helped alot, but did not resolve the issue completely. Transmission started leaking again with fluid hitting the exhaust manifold and causing burning smell. Replaced tranny cooler hose. 
61560 mi I ended up replacing the coil packs on the front bank and that resolved the misfire. 
63240 mi

C $485
The crankshaft seal was weaping. No oil noticeable on garage floor. Seal replaced. 
69440 mi

C $2700
Weaping water pump Struts and shocks Oil pan gasket leaking 
80180 mi

C $1100
Rear seal leak-had to be replaced. 
86800 mi

C $50
One fog light and one headlight had to be replaced Car would not start. Car needed to be towed and starter replaced 
70680 mi

C $550
engine light came on. sensor and hose required replacing. also got rear brakes replaced due to wear 
79980 mi

C $100
Electrical socket for turning signal 
89860 mi

C $1000
Leaking gaskets and oil pan seal 
93580 mi

C $100
Light bulb socket for turn signal failed 
117000 mi

US $220
A clip had broken off a cooling line and leaked coolant. The radiator was bone dry. Had to replace the clip and refill the coolant. No other issues found. 
118000 mi

US $300
Drivers side back passenger window motor would just stop when rolling up the window. It would go down all the way but would stop about 1 1/2 inches from the top. Replaced motor everything back to normal. Headliner was falling off. 
124000 mi

US $1200
Water pump seized and took out Serpentine Belt. All had to be replaced along with new idler tensioner. 
71920 mi

C $20
Outer CV Joint boot broke, replaced part. 
76900 mi

C $400
A/C line rubbed through at the point of contact with the ABS bracket. Installed updated line that doesn't contact with the A/C bracket.  
80260 mi

C $100
Check engine with the code p0305 came ON - cylinder 5 misfires. Replaced ignition coil 
95460 mi

C $200
Front wheel bearing became noisy. Replaced the front wheel bearing myself. Paid for parts only around $200. 
102920 mi

C $150
Oil leak from the oil pan 
77700 mi

US $130
Interior door latch became disconnected. 
99000 mi Owner identified oil leaks. Vehicle was brought to mechanic and vehicle needed new front and rear main seals and oil pan gaskets. Decided to sell vehicle. 
87000 mi

US $200
Stalling. Intermittent at first, then got worse. No code at first, then misfire code. First diagnosed as ignition coil, then fuel pump. Wheel speed sensor failed 
92000 mi

US $60
Intake hose cracked. Led to lean burn fault. 
97740 mi

C $700
Main bearing front 
45880 mi

C $300
Oil pan cover. 
44640 mi

C $150
TSB 60 for Fan Operation. Previous owner never had repaired this. 
46500 mi

C $100
During days of heavy rain, the Radio and climate systems would not shut off, even with key removed. Once car dries out everything is normal again. 
47700 mi

C $995
Random Electrical Problems, Dealer located electrical module that was corroded, also determined a firewall grommet was loose that allowed water to drain onto electrical module. 
50840 mi Heat Shield rusting off on Catalyic Convert. Replace Catalytic Converter Covered under Emission Warranty 
58900 mi Cracked exhaust manifold, part replaced 
67580 mi

C $35
Check engine light was after returning home from Vacation. Code check indicated engine misfire. Rough start first time after vacation. No other indications of a misfire since that time. 
68820 mi

C $150
Rear Hatch latch was corroded and was stiff in operation. Hard to open or lock sometimes. Parts replaced, latch works fine now. 
114000 mi

US $20
Rattling under dvr/passenger seats when car started in morning. Goes away as car is driven. Heat shield was rusted, hitting exhaust. Garage removed Heat shield. 
117000 mi

US $2500
Engine replacement 

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2004 Mazda Mazda6 4dr Sedan

220-horsepower 3.0L V6 5-speed manual FWD

120000 mi

US $120
Lower engine mount failed. The rubber had been ripped through. A replacement (aftermarket) mount was installed that has solid urethane instead of rubber. 
126000 mi

US $300
Pulley for the water pump seized. Belt and pulley replaced. Water pump was ok. 
135300 mi

US $500
Oil Leaks.  
138000 mi

US $1384
Precat (exhaust) needed replacing. 
52480 mi

$270
Check engine light was on, had to replace spark plugs and ignition coils. 
84320 mi

$650
Hesitation under load, uneven idle. Valve cover gaskets & spark plugs replaced. 
84320 mi

$500
Hesitation under load, uneven idle. Valve cover gaskets & spark plugs replaced again. Check engine light came back on and problem persists. 
112300 mi

US $129
CEL, slight hesitation/loss of power. Air intake hose was cracked. I replaced it. The part was the only cost. 
118000 mi

US $300
Replaced broken motor mount. 
124000 mi

US $126
Blue smoke from exhaust. Appears to have been a blocked PCV valve at this time. 
132000 mi

US $350
Replaced worn window motor 
157500 mi

US $850
Throttle body replacement-sensor went bad and the car had no fueling power. Over heating after throttle body was changed. New thermostat still over heating. Hose leaking and other all connectors for coolant. It leads to the throttle body. 
166000 mi

US $100
Breather hose from the intake to the motor. PCV valve 
105000 mi

US $165
Replaced battery, removed rattling heat shield 
76000 mi Replaced left outer CV joint boot 
102700 mi

US $600
CEL P2135 read about the issue and decided to replace the throttle body due to a TSB issued around 2006 
68820 mi Excessive oil consumption. Dealer said it was leaking valve cover gasket. Turns out that the PCV valve failed as well. Ordered PCV Valve. Took to friend who owns shop to replace PCV Valve 
69440 mi

C $400
Valve cover gasket was leaking. Changed sparkplugs as well since Intake Manifold had to be removed. 
71300 mi

C $400
*Valve cover gasket was leaking. Changed PCV first but still losing lots of oil. Determined for sure that it was valve cover gasket. Due to Mazda's bad design and mileage on car, changed sparkplugs on same trip since the intake manifold has to be removed. 
71300 mi

C $10
Drain bolt seal was worn and was no longer effective. Replaced drain bolt. 
72540 mi

C $250
Oil pan gasket was leaking again. (was fixed under warranty in Dec 07). Mazda said it's out of warranty now so they won't do anything. Bought redesigned oil pan and replaced instead of replacing old gasket that will die again in a year. 
79000 mi

US $59
Noticed there was no cold air blowing with or without A/C on. Dealer diagnosed and found a cold-air return door stuck closed. Door was opened and reset, and hinges were lubed. 
83000 mi

US $74
Car was losing oil at the rate of 1 quart per 800 miles, with no signs of leaks or burnoff in exhaust. Dealer diagnosed a "sticking" PCV valve, which partially worked. Valve was replaced. 
109000 mi

US $20
Got check engine light with engine stuttering, rough idle. Noted simultaneous P0171 & P0174 DTC codes. Discovered "sucking sound" near intake with engine running. PCV hose was cracked/collapsed. Replaced PCV hose and valve. 
116000 mi Headliner loose (6-8" diameter) near corner rear window on both sides. Used DIY spray headliner glue. Frequently ride with sunroof/rear windows open and also park car outside during hot Texas summer days - possible contributing factors. 
139000 mi

US $16
Oil pressure switch leaking. 
145000 mi

US $300
Leather seats: Front driver seat side bolster cushion worn through. Can feel steel support through leather seat cover when driving. Have not repaired yet. Estimated cost is $300 for used salvage parts + labor DIY (if I can find one). 
150000 mi

US $20
Repaired right side seat bolster cushion of driver's seat which had cracked from top-to-bottom such that the metal frame was causing discomfort while driving. Crack was approximately 18 inches long. Glued and stitched together. 
154000 mi

US $300
Replaced remaining engine mounts. Backup lamp switch (on manual transmission) failed/intermittent. 
156700 mi

US $25
Belt tensioner froze, plastic pulley disintegrated. Followed suggestions from other owners and removed the belt tensioner completely, and replaced the belt with a stretch-to-fit belt directly between water pump and drive. 
161000 mi

US $20
Replaced battery tray, split where battery hold-down attaches. Replaced lower dog-bone engine mount. 
170300 mi

US $417
Grinding metal-on-metal sound coming from driver's side front. Replaced driver's side half-shaft and wheel bearings. 
171000 mi

US $120
Radiator leaking from top joint between plastic/metal. 

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2004 Mazda Mazda6 4dr Sedan

220-horsepower 3.0L V6 4-speed automatic FWD

127000 mi

US $90
Mass air intake hose had to be replaced. 
79000 mi

US $400
The ignition coil went bad and it needed to be replaced as well as all the spark plugs. 
62620 mi

C $99
P431 code; scanned with ScanXL ElmScan tool at home and O2 sensor readout showed a failed bank 2 catalytic converter. Was replaced under warranty (which will run out at then end of this month) 
71040 mi

C $120
The a few ignition coils needed to be replaced, and I also changed a fuel injector. The engine runs like brand new now. No misfires at near max speed. 
76260 mi

C $100
I suspect one of the welds in the rear pillars above wheels broke. Broken weld noises are so annoying and so hard to fix that some people sell the cars. Best Play: I made a cast around the weld out of expanding foam to deaden the sound. : / 
84940 mi The front and back brakes were seizing and working erratically. The car would pull to one side a highway speeds. Passenger front brake caliper bolt fell out 3 weeks after the dealer did the work. The car would have the right wheel jam when reversing, and it would grind the rim when going forward. 
87380 mi All 4 control rods that hold the wheels have bushings that were not designed to last the life of the car. It came time for all of this car's bushings to crack and require replacement. The bushings are inseparable from control rods in model. The engine is leaking oil. Potentially due to an incorrect installation of engine gaskets at a previous time the car was repaired (before I owned it). But it is not so bad that it is dripping on floor. I'm monitoring oil level monthly. 
89860 mi

C $179
The transmission on this car overheats and destroys the oil in 50,000 km. I used Seafoam Transmission cleaner, and then had the fluid drained and refilled to resolve atrociously slow shifting. 
91140 mi

C $250
The belt tensioner is dying and needed to be replaced, a lot of squealing going on. The squealing is still around, but not as bad as before. The A/C pulley was also making a lot of the noise and needed lubrication. 
91760 mi

C $1000
Passenger side CV joint makes noise, and is loose. 
91760 mi

C $800
Replaced A/C compressor, recharged A/C, and changed serpentine belt from aftermarket one to an OEM to eliminate squealing. 
62000 mi

C $1000
Camshaft position retarded on bank 1. Car stalls while driving. Cylinder 1 too lean, cylinder 4 rich; random multi-cyclinder misfire. Engine work done before I bought it (I found out when I took it to Mazda dealer). Will need new engine. Sold. 
187000 mi

US $600
Car died suddenly, had it towed in. Diagnosed and had MAF sensor replaced. 
197000 mi

US $127
Vacuum hose was broken. Replaced and was as good as new. 
206000 mi

US $14
Headlight went out, bought a new one but didn't have the time/place to install it. Valvoline did it for about $14 so I guess I'll go back next time. Bummer was about 3 days later the other one burned out :( Second headlight replaced a few days later. 
219000 mi

US $650
During previous oil change the plug had been cross-threaded and when they took it out they stripped out the pan entirely necessitating a pan replacement. Have no proof of who did the last oil change so I had to eat the cost. 
226700 mi

US $185
Check Engine Light came on. Indicated B2S2 oxygen sensor is bad. Chose not to repair at this time. Also had brakes checked - OK. 
237000 mi

US $850
Replaced front struts and two tires. 
248000 mi

US $994
Replaced coil pack Right front suspension components replaced Oxygen sensor went bad 
248000 mi needed a complete power steering rebuild. Too costly to repair for value of the car. Too bad, it had 246K miles on it and I was shooting for a quarter of a million. 
132000 mi

US $100
Left low beam out, right intermittent. Replaced both bulbs. 
134700 mi

US $200
Check engine light after emissions inspection. 
93000 mi

US $868
Water pump had a leak and was replaced. Also replaced bypass hose as it was swollen. Oil pan was leaking fluid. Leak was sealed with a sealant. 
30000 mi Bad seal on gas cap. Gas cap replaced. Problem solved. 
31000 mi Headliner coming loose. New Headliner assembly ordered. I was notified the headliner ordered (after first appointment) delivered to dealer and I scheduled repair for a Monday. Left the car and received loaner. When the headliner was removed from packaging, it had damage. Dealer ordered a new one. Because... 
58700 mi Intermittent hesitation when accelerating. No CEL 
67300 mi

US $550
Bad coil 
69000 mi

US $100
Replaced failed engine mount 
74000 mi

US $1348
Had to replace coils. Multiple oil leaks requiring replacement of three gaskets. Driver side front door latch malfunction. Could not open door. 
77000 mi

US $300
Headliner was starting to hang 
82000 mi

US $1125
Bad CV boot. Had to replace front axel. Frozen to steering knuckle. Had to replace steering assembly. Bad fan control module 

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2004 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 5-speed manual FWD

68820 mi

C $110
Engine light on - took to mechanic, they hooked up to computer and said fuel line problem (losing pressure) that needs more investigation to fix. 3 days later light went off on it's own. 
67000 mi

US $500
Muffler had to be replaced due to rust. 

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2004 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 4-speed automatic FWD

47120 mi Erratic idle speed, 700 - 2000 rpm. Fixed by software refresh/updates 
71920 mi Erratic RPMs at idle and low speed driving 
82460 mi slightly noisy tensioner on serpentine belt. Tensioner and belt replaced under mazda extended warrnty 
102300 mi

C $388
Left front wheel bearing replaced 
133300 mi

C $3000
Engine replaced with used engine due to impending failure of connecting rod (causing loud internal knocking noise) - same diagnosis from two mechanics 
148800 mi

C $630
Also repaired 1 seized caliper pin. 
197160 mi No compression cylinder 3. Still running but mechanic suspects blown rings. Sold as is. 
96000 mi

US $340
Engine thermostat replaced 
96000 mi

US $250
Left rear brake caliper shot. Replaced caliper and both rear brake pads. 
68200 mi

C $300
Check engine light was on, vacuum hose had cracked. It was replaced. 
71000 mi

US $260
purge solenoid replaced, bad vacuum hose 
97000 mi

US $655
Fuel pump 

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2004 Mazda Mazda6 4dr Hatch

220-horsepower 3.0L V6 5-speed manual FWD

103000 mi

US $400
Backup lights would not light when car was put in reverse. Dealer replaced switch engaging circuit on transmission. Lights out illuminating switches for climate control. Dealer replaced all bulbs in center stack, as it requires about 90 minutes of labor to get there, but minimal effort and cost to replace more bulbs than just the ones that burned out. 
129000 mi

US $85
Caliper slide bolts froze on front left brake. The bolts were replaced. 
157700 mi

US $476
Tensioner for water pump belt seized, destroying the belt. Repair consisted on replacing the belt and tensioner, cleaning the residue from the destroyed belt, and topping off coolant. 
125860 mi

C $3000
catastrophic engine failure leaking seals from duratec V6 causing valvetrain damage and oil blowby oil level critical to check. seals leak as car ages. 
125860 mi *d engine valvetrain and cylinder blowby caused by engine damage due to low oil condition from multiple leaking seals 

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2004 Mazda Mazda6 4dr Hatch

220-horsepower 3.0L V6 4-speed automatic FWD

114000 mi

US $126
Had to replace the spark plugs and #4 coil pack 
85000 mi

US $1500
Cylinder misfire. One of the cylinder was misfiring. Had to change all 6 ignition coils and spark plugs. 
93000 mi

US $600
Catalytic converter repaired Alternator failed. It took tire plus over seven hours to secure the part and install it. 
106000 mi

US $200
Alternator was replaced under warranty, but labor was extra. Battery required replacement. 
106000 mi

US $650
Car was idling rough. The mass air flow tube was cracked. That was repaired and the throttle body and mass air flow sensor were cleaned 
106000 mi

US $700
Rough idling problem persisted after the first fixes. I searched online for the symptoms of rough idling at low rpms and found that it was likely ignition coils and spark plugs. I requested to have those checked 

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2004 Mazda Mazda6 4dr Hatch

160-horsepower 2.3L I4 5-speed manual FWD

104000 mi

US $300
computer programming problem 
122700 mi

US $1300
replaced the clutch 
132000 mi

US $650
this is the car's third clutch, put in in Sept. 2012. I didn't like how the pedal action felt, and I took it in. Poor install led to problems with control bushing. 

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2004 Mazda Mazda6 4dr Hatch

160-horsepower 2.3L I4 4-speed automatic FWD

88000 mi

US $250
Headliner is falling down. According to Mazda 6 forums this is a common problem around the 5 year mark. Frustrating problem in a modern car. My 84 Mercury had this issue, but I've never encountered this again until now. Cheap adhesive? 
94700 mi

US $358
Replaced two motor mounts. The car would jump noticably when shifted from park in the morning and during the first few gear shifts. Separately, the transmission light came on after a violent storm, but reset after disconnecting battery. 
97000 mi

US $40
Front right wheel bearing failing; terrible rumbling sound that changes with speed.  
99000 mi

US $275
Replaced right front wheel bearing 

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2004 Mazda Mazda6 4-door

turbocharged 4-cylinder diesel manual 2WD

116940 mi

$100
replaced the engine buffer (made of rubber) 
120440 mi

$100
replaced the exterior mirror from left side (not heating any longer). 
123380 mi

$300
Replaced all shock absorbers 

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2004 Mazda Mazda6 4-door

6-cylinder automatic 2WD

17000 mi Car is getting horrible gas mileage, less than 10MPG, was brought to dealer to evaluate engine for the fourth time. Problem still not fixed. 

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2003 Mazda Mazda6

Engine not specified

115320 mi Bad diagnosis for Mazda. I decided no repair because the cost was 4500$. I sold the car and the buyer discovered there was nothing broken, only bad oil ( Mazda team put the oil at 180.00 ) 

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2003 Mazda Mazda6 4dr Sedan

220-horsepower 3.0L V6 5-speed manual FWD

121000 mi

US $3000
Engine died. I replaced the engine, exhaust manifold, and catalytic converter with used parts.  
127000 mi

US $440
needed new throttle body 
129000 mi

US $1000
Needed new catalytic converters. 
134000 mi

US $300
replaced water pump belt and tensioner, latter preventive 
146000 mi

US $275
replaced a wheel speed sensor 
Engine blown. Turned main bearing. Salvaged. 
110000 mi

US $1600
Had clutch and oil pan gasket replaced. 
93000 mi

US $310
Bad ignition coil. Replaced. 
101000 mi

US $800
Temp gauge going up at idle. Replaced thermostat. Prob remains. Probabaly broken water pump fin, will replace next time, not pressing. 
120000 mi Temp gauge going up at idle. Probabaly broken water pump fin. 

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2003 Mazda Mazda6 4dr Sedan

220-horsepower 3.0L V6 4-speed automatic FWD

67000 mi

US $552
Throttle body had to be replaced. 
69000 mi

US $20
Dashboard plastic hinge broke on one side. 
99700 mi

US $770
Bearings were busted on both Front wheels. Had to replace Bearings + Hub.  
101000 mi

US $133
Appears a specific valve got stuck, causing throttling issues. Valve was cleaned out and lubed.  
104000 mi

US $275
This is related to the problem in april...one of two fixes-the first was a valve got stuck with dirt. This didn't work, car lost all power on highway. So did the alternative solution which was to replace an electronic component that controlled the valve. Had to fix the key ignition ... somehow it wouldn't recognize any of my 3 keys ... something happened to the tumblers ... couldn't drive car until locksmith fixed it. 
113000 mi

US $65
Just a slight oil leak. Had to add some silicon in multiple joints. 
122000 mi Key lock (driver side door) fell into door panel. Had to open up door panel, unhook electrical from panel, then had to remove the sound deadening panel to fish around for a loose screw that kept the key lock in place. 
122700 mi

US $150
Had to replace a broken engine mount (circular object) holding the engine to the chassis. (car would vibrate really bad unless it was in neutral). 
126000 mi 1)leaking oil. will need to replace some type of engine valve gasket 2)engine mount needs to be replaced 3)water hose to engine is leaking, and needs to be replaced. 
112000 mi Bushings cracked on lower control arms. Parts $200. Labor to install $550. 
112000 mi Air/fuel mixture sensor failed. Would have cost $500 to fix. 
99000 mi

US $788
new throttle body, also had checked for occasional "popping" sound (shop said sound was harmless), also had oil change 
101000 mi cooling fan made loud constant noise. I discovered it was under recall so it was fixed for free. 
131000 mi

US $450
*dup Car keep dieing after rain storm. Been living with check engine from evaporate system. New codes resulted in flashing CEL, All 4 of 6 ignition coils shot. Repair was worth more than car was worth. Cut my losses and sold it to shop. Evap sensor bad. Not required to smog test in my location, so told I could live with it as repair was more than car was worth. Diagnosis worn spark plugs, misfire #4, bad coil #4, possibly additional sensors issues. 
131000 mi

US $450
Car kept dying after rain storm. New codes resulted in flashing CEL, All 4 of 6 ignition coils shot. Repair was worth more than car was worth. Cut my losses and sold it to shop for half of value to cover cost of repairs. 
94000 mi

US $800
Valve cover gaskets reported as "seeping" at July repair shop trip - got it repaired today. Oil pan gasket is leaking - previously unknown problem repaired today. 
96000 mi

US $245
Car showed check engine light and code P0303 which is misfire in cylinder #3. When shop drove, problem had disappeared after barely being drivable for me. Shop switched ignition coils on #3 and #4 to see if problem would reoccur but has not yet. 
114700 mi

US $90
Ball joints are nearing replacement time - lubed by the shop. 
123000 mi Had issues with rust on the bottom of the vehicle, and my catalytic converter subsequently had to be replaced. 
141000 mi

US $975
Replace cooling fan assy and radiatior 
161000 mi

US $400
Pcv.cam sensors .throttle body.spark. plug.reset computer . 
77000 mi

US $1300
Engine miss at 75K. 3 spark plugs and 3 ignition coils, plus replacing valve cover gasket. Price-1300. major work to replace plugs, including taking off intake manifold. Poor design. 

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2003 Mazda Mazda6 4dr Sedan

160-horsepower 2.3L I4 4-speed automatic FWD

68000 mi

US $1400
Intake manifold gasket failure caused Check Engine Light and rough running/idle at low speed. Very costly repair, apparently very common with Mazda/Ford 2.3L 4 cyl engine. Also reflashed ECU to resolve open TSB/recall notice. 
41000 mi

US $550
Front ball joint wear. 
65000 mi Leaky front struts -replaced 
86000 mi

US $200
Replaced thermostat 
98000 mi Replace alternator 
82000 mi

US $90
Code P0456 - Evap Vent Solenoid stuck. Part on top of fuel tank; non-critical at this time. Parts & labor estimate $600. 
84000 mi

US $90
Lost both headlamp low beams (left and right) in about a 36hr. period, plus a smaller accessory headlamp bulb. Self-repair opportunity wasn't going to happen for a few days so I took it to the dealer. Replaced bulbs while I waited. 
86000 mi

US $300
Accessory belt tensioner pulley was making obvious noise suggesting bearing or other failure was on its way. Repair performed at Ford (Mazda 6i uses same 2.3L Duratec) replaced pulley. 
87000 mi Car had been idling noisily. While replacing air filter, discovered airbox wasn't securely attached to wheel well intake. Prob. dislodged during headlight repair? Quick re-seat cleared up idle issue & got MPG back to expected. 
95000 mi

US $55
Noticed slight burning smell over 3 days prior to planned service, so requested technician investigate. Discovered housing for oil filter cartridge was cracked & had minor leak. Housing replaced during oil change; no labor charged. 
102000 mi

US $500
Bearing noise (sounded like a bad tire) was investigated & found to require replacement of hub assembly. 
113700 mi

US $285
Left-front suspension was making an awful creaking noise. Dealer reported both tie rods were damaged (torn covers) and the left one was causing the noise. 
128000 mi

US $5
Complete electrical failure when I turned key to ignition. Poof... Replaced main fuse in my driveway. 
133000 mi

US $400
Left-side lower control arm bushings were shot. 
143000 mi

US $350
Replaced sway bar end link that had been making tons of noise. Comment was that it was "loose". 
150000 mi

US $275
Replaced split PCV hose. 
152000 mi Return of the CEL with same codes as before PCV repair 
55000 mi

US $45
Battery warning light came on. It was due to a loose connection. 
55000 mi

US $630
Tailpipes and muffler separated from exhaust system  
96000 mi

US $800
Check engine light came on. Some seals needed replaced, and the PCV valve was cracked. Also put on 4 new tires, and oil change. / tune up. 
109000 mi

US $3900
Engine replaced with rebuilt, warranty engine 
52700 mi

$100
Engine mount, rear/firewall  "dogbone" Serpentine belt tensioner 
57860 mi CD changer lens cleaned and mechanism repaired 
59080 mi

$150
CD Radio/Climate Control Display 
63240 mi Driver's door lock broken spring (could not open door) 

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2003 Mazda Mazda6 4-door

4-cylinder automatic 2WD

95000 mi

US $400
Passenger side muffler and pipe was leaking keeping the car from passing emissions. 
71920 mi

$485
Vibrating when idling. Concerned that the wrong oil grade contributing (topped up with 5W-40 instead of 5w-30. Early service done (was due at 117500. Liquid fill engine mount had failed. Replaced and back to smooth running. 

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2004 Mazda Mazda6 Engine Problems

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