| 1 | 0 | 3 | 4 | 3 | 4 |
2006 Mazda Mazda6 repairs by problem area
Engine (43%)
Transmission and Drivetrain (13%)
Brakes and Traction Control (5%)
Suspension and Steering (14%)
Electrical and Air Conditioning (16%)
Paint, Rust, Leaks, Rattles, and Trim (3%)
Other (5%)
Chart based on 369 repairs.
2006 Mazda Mazda6 engine repair cost distribution
$2500+ (2%)
$1000 - $2499 (11%)
$500 - $999 (16%)
$100 - $499 (45%)
< $100 (27%)
Chart based on 141 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2006 Mazda MazdaSpeed6 4dr Sedan
turbocharged 274hp 2.3L I4 6-speed manual AWD
| 38000 mi | Replace clogged EGR valve, free under 7yr CA smog warranty |
| 51200 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. Replaced failed passenger side engine mount. |
| 57000 mi | Leaking heater core. |
| 20800 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. Despite undergoing the voluntary TSB reflash Summer '08, the car occasionally stutters when accelerating. It occurs when the car is under load and the driver depresses the throttle from 2500-3500 rpm. Dealer unable to reproduce problem. No fix performed. |
| 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. |
| 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". |
| Smoking K04 turbocharger. |
| 94220 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 |
| 83700 mi C $413 |
ENGINE LITE ON DIAGNOSE, THERMOSATE,REPLACED,AND NEW COOLANT, CLEAR CODE, CHECK ALL HOSES, PRESS TEST COOL SYSTEM ALL CLEAR |
| 42000 mi US $1200 |
Hesitation resulting from poor fuel pressure from fuel pump. |
| 56000 mi US $275 |
Thermostat and temperature gushed were replaced. |
| 92000 mi US $620 |
Replace EGR valve. |
| 82500 mi US $450 |
Thermostat was stuck open. |
| 43000 mi US $190 |
Replaced belt tensioner. |
| 68000 mi US $630 |
EGR valve went bad |
| 79800 mi US $600 |
Replaced rear motor mount |
| 85100 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) |
| 114000 mi US $30 |
Radiator leaking coolant from plastic end tanks. Replaced with OE Mazda radiator. |
| 82000 mi US $200 |
Thermostat replaced |
| 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 $374 |
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. |
| 115000 mi US $350 |
Replaced both the rear motor mount and the transmission motor mount. |
| 78000 mi US $800 |
Replaced engine mount |
| 13000 mi | ECU Flash to correct loss of power. Covered under warranty |
| 28000 mi | Turbo was replaced. Blown seal causing the car to smoke. Replaced under warranty |
| 39000 mi | Excessive engine knock. Broke 1 spark plug and fouled the other 3. Plugs replaced under warranty |
| 86348 mi US $100 |
Thermostat, coolant, and serpentine belt replaced. |
| 3000 mi | CEL thrown for a bad Tumble Control Valve. New intake manifold was ordered and replaced. |
| 148000 mi US $1400 |
Turbo leaking oil and Egr valve low flow |
| 26000 mi | TSB for emissions issue. 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. |
| 19000 mi | O2 Sensor malfunction. |
| 54000 mi US $10 |
Exhaust Gas Recirculator (EGR) valve threw a P0401 code. Removed, cleaned, and reinstalled. |
| 130700 mi US $300 |
New spark plugs and oil |
| 43700 mi | Faulty EGR valve causing CEL to come on |
| 11000 mi | very smokey oil, smoke occasionally extreme; replaced turbo |
| 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. |
| 129000 mi US $500 |
Failed VVT actuator |
| 143000 mi US $300 |
Replaced failed motor mount |
| 17000 mi | Had carbon buildup in turbo valves requiring about $1000 worth of repairs covered by aftermarket warranty right before I sold it. |
2006 Mazda Mazda6 4dr Wagon
215-horsepower 3.0L V6 6-speed shiftable automatic FWD
| 39000 mi | Defective drive belt pulley Oil seal leak |
| 67000 mi US $150 |
Oxygen sensor replaced |
| 76000 mi US $1300 |
Oil leak from valve covers |
| 90000 mi US $1345 |
oil leak rear main seal |
| 112000 mi US $1000 |
plug coils replaced, several computer sensors replaced |
| 95500 mi US $60 |
Whining noise and coolant leaking from the water pump. |
| 62200 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. |
| 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. |
| 72000 mi US $250 |
The dreaded Mazda 6 purge valve was replaced. |
| 130000 mi US $800 |
Replaced water pump and related belts. |
| 145000 mi | Oil leaks - valve cover, oil pan, timing chain cover and possibly rear seal. Two different shops looked at car. Both estimates ran $4000 to $4500, mainly for labor to get to leaks and then replace removed items. I traded the Mazda 6 in on a 2015 Mazda 3 Hatchback. |
| 79000 mi US $40 |
Air intake hose replaced due to crackingtearing |
| 64500 mi US $600 |
Leaking waterpump |
| 87000 mi US $800 |
Exhaust leak Water pump replaced |
| 105000 mi US $600 |
All coils replaced |
| 129260 mi C $1100 |
Install Serpentine belt, air intake hose from airbox to throttle body, waterpump, antifreeze and cabin filter. |
| 42000 mi US $280 |
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 |
| 83700 mi C $1500 |
Oil leak from crankshaft seal repaired. |
2006 Mazda Mazda6 4dr Wagon
215-horsepower 3.0L V6 5-speed manual FWD
| 56000 mi US $700 |
Oil pan leak, gasket replaced |
| 60900 mi US $140 |
Cooling flange cracked Engine Mounts and strut loosened |
| 85000 mi US $125 |
lower engine mount / torgue strut bushing failed. This one only lasted 20k miles. replaced with AWR unit with polyurethane bushings. |
| 88660 mi C $300 |
Weld a crack in exhaust pipe |
| 93620 mi C $270 |
Weld crack in exhaust |
| 33000 mi | Replace leaking oil pan gasket under warranty. |
2006 Mazda Mazda6 4dr Sedan
215-horsepower 3.0L V6 6-speed shiftable automatic FWD
| 129000 mi US $225 |
Drive belt y tensioner pulley snapped replaced drive belt tensioner pulley, timing belt |
| 70680 mi C $220 |
Oil pressure sensor was replaced. |
| 71300 mi C $445 |
Timing belt tensioner. |
| 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. |
| 75000 mi US $189 |
Water pump had a slow drip. Full water pump assembly replaced with original mazda part ($$), mainly b/c one of the assembly inlet/outlets is made of (11 year old) plastic and therefore liable to break if only pump replaced. |
| 224000 mi US $206 |
Limp mode, knock sensor needed replaced. |
| 226000 mi | Catalytic converter clogged, estimated cost too much for age/mileage of car, sold for scrap |
| 112500 mi US $825 |
serpentine belt replacement and a gasket leak |
| 32000 mi | CEL came on. Loose fuel cap triggered CEL. |
| 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. |
| 117880 mi C $300 |
Tensioner froze, belt thrown off, drove on battery until it died. Both replaced, battery charged. |
| 135160 mi C $448 |
2x leaking flanges + pin leak, repair parts 2x flex pipe + exhaust pipe |
| 98200 mi US $250 |
Air intake hose cracked, replaced hose and boot |
| 68000 mi US $150 |
Replace thermostat |
| 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. |
2006 Mazda Mazda6 4dr Sedan
215-horsepower 3.0L V6 5-speed manual FWD
| 45000 mi | oil pan leak |
| 111000 mi US $300 |
Engine Mount (T-bone) replaced. |
| 110560 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. |
2006 Mazda Mazda6 4dr Sedan
160-horsepower 2.3L I4 5-speed shiftable automatic FWD
| 76000 mi US $1455 |
Replaced intake manifold, oxygen sensor, spark plugs, and burned out parking headlight |
| 76300 mi US $399 |
Replaced Thermostat and hose that was leaking |
| 74800 mi US $780 |
The timing belt jumped and had to be replaced. Also replaced was oil and spark plugs. |
| 81000 mi US $379 |
Thermostat housing had to be replaced and the temperature gauge was running too cold |
| 88000 mi | The MAF sensor, the PCV hose, and the gas cap were replaced. |
| 60000 mi US $165 |
Purge valve had to be replaced. |
| 78120 mi C $300 |
Oxygen sensor replaced |
| 165000 mi US $410 |
PCV hose and PCV gasket replaced. Head cover gasket replaced. |
| 227000 mi | Replaced Valve Cover Gasket |
| 66000 mi US $70 |
Gas cap and evap check valve |
| 156000 mi US $1650 |
Replaced engine due to cracks in multiple cylinders. |
2006 Mazda Mazda6 4dr Sedan
160-horsepower 2.3L I4 5-speed manual FWD
| 94300 mi US $1000 |
Clutch replaced |
| 121700 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. |
| 120300 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. |
| 137800 mi US $97 |
Rounded drain plug and stripped threads. Probably by a Jiffy-Lube type shop during previous oil change |
| 95440 mi C $574 |
Rough start, check engine light. Replaced PCV intake hoses. A week later, check engine light on again. Took to a different dealership. After changing, pcv hoses, mass air flow sensor, oxygen sensor, changed fuel pump. |
| 115300 mi US $250 |
Engine temp sensor went out. Had to have it replaced. |
| 117500 mi US $2500 |
Tensioner on timing chain went bad. Skipper several cogs. All valves destroyed, two pistons destroyed. Had to replace engine. |
2006 Mazda Mazda6 4dr Hatch
215-horsepower 3.0L V6 6-speed shiftable automatic FWD
| 95000 mi US $84 |
Replaced O2 sensor myself with new one from local auto store. Simple switch. |
| 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. |
| 107100 mi | 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. |
2006 Mazda Mazda6 4dr Hatch
215-horsepower 3.0L V6 5-speed manual FWD
| 41700 mi US $473 |
Replaced cracked rear transmission mount |
| 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. |
| 57065 mi US $874 |
Oil leak from around valve covers. Replaced valve covers, gaskets and seals. Oil leak from around valve covers. Replaced valve covers, gaskets and seals. |
| 68136 mi US $373 |
Purge valve stuck in open position - replaced. |
| 68936 mi US $373 |
Purge valve stuck in open position - replaced. |
| 116000 mi US $1324 |
Replace leaking rear main seal |
| 85000 mi US $400 |
Replaced oil pan gasket. Car was slowly leaking oil. |
| 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. |
| 140000 mi US $1200 |
Missing under heavy load; found bad #5 coil, and it was time to replace spark plugs. Replaced back three coils, and all six spark plugs, and performance was restored. Radiator fan kept coming on when it wasn't necessary (engine cool, or shut off). Replaced fan module. |
| 160662 mi US $664 |
Valve cover gaskets were leaking oil rather badly; needed to replace them to pass inspection. |
| 165000 mi US $950 |
Oil leak onto exhaust from timing chain cover; re-sealing required removing and reassembling many parts in order to get access. |
| 99200 mi C $100 |
replace water pump, crank seal, oil pan seal, and fuel return vapor solenoid. |
2006 Mazda Mazda6 4dr Hatch
160-horsepower 2.3L I4 5-speed shiftable automatic FWD
| 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 |
| 81400 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. |
2006 Mazda Mazda6 4dr Hatch
160-horsepower 2.3L I4 5-speed manual FWD
| 130000 mi US $100 |
P0126 code, coolant temp wouldn't go above 160. ECT bad/thermostat stuck open. Replaced both. Engine started boiling over, radiator cap not holding pressure. Replaced. |
| 133000 mi US $120 |
Oil pan drain plug stripped out during oil change. Replaced with after market oil pan. |
| 109740 mi A $100 |
Engine rough at idle and hesitates on part throttle. Cleaned injectors and intake manifold. |
| 157480 mi C $300 |
thermostat |
2006 Mazda Mazda6 4-door
4-cylinder manual 2WD
| 100000 mi US $200 |
Coolant sensor |
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