| 1 | 0 | 3 | 4 | 3 | 4 |
2003 Mazda Mazda6 repairs by problem area
Engine (58%)
Transmission and Drivetrain (2%)
Brakes and Traction Control (3%)
Suspension and Steering (18%)
Electrical and Air Conditioning (11%)
Paint, Rust, Leaks, Rattles, and Trim (2%)
Other (5%)
Chart based on 96 repairs.
2003 Mazda Mazda6 engine repair cost distribution
$2500+ (4%)
$1000 - $2499 (10%)
$500 - $999 (18%)
$100 - $499 (36%)
< $100 (32%)
Chart based on 50 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2003 Mazda Mazda6
Engine not specified
| 115320 mi | Bad diagnosis for Mazda. I decided no repair because the cost was 4500$. I sold the car and the buyer discovered there was nothing broken, only bad oil ( Mazda team put the oil at 180.00 ) |
2003 Mazda Mazda6 4dr Sedan
220-horsepower 3.0L V6 5-speed shiftable automatic FWD
| 141000 mi US $975 |
Replace cooling fan assy and radiatior |
| 161000 mi US $400 |
Pcv.cam sensors .throttle body.spark. plug.reset computer . |
| 112000 mi | Air/fuel mixture sensor failed. Would have cost $500 to fix. |
| 98000 mi | new throttle body, also had checked for occasional "popping" sound (shop said sound was harmless), also had oil change cooling fan is running on high constantly, stays on for a short while even after car is turned off. Shop says it wont hurt anything/might be a circuit in the computer but it would be 500+ to send for repairs. |
| 101000 mi | cooling fan made loud constant noise. I discovered it was under recall so it was fixed for free. |
| 123000 mi | Had issues with rust on the bottom of the vehicle, and my catalytic converter subsequently had to be replaced. |
| 78000 mi | Bad Fan Module. The fan would run constantly, even after shutting the car off. |
| 67000 mi US $552 |
Throttle body had to be replaced. |
| 19045 mi | Warranty - radiator fan |
| 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. |
| 123100 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. |
| 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. |
| 131000 mi US $450 |
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. |
2003 Mazda Mazda6 4dr Sedan
220-horsepower 3.0L V6 5-speed manual FWD
| 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. |
| Engine blown. Turned main bearing. Salvaged. |
| 120500 mi US $3000 |
Engine died. I replaced the engine, exhaust manifold, and catalytic converter with used parts. |
| 126500 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 |
| 110000 mi US $1600 |
Had clutch and oil pan gasket replaced. |
2003 Mazda Mazda6 4dr Sedan
160-horsepower 2.3L I4 4-speed shiftable automatic FWD
| 38000 mi | computer chip malfunction shut down the car while on highway. under warranty and was fixed. |
| 90000 mi US $250 |
oxygen sensor replaced |
| 61000 mi US $650 |
Fuel Vapor recovery system failure |
| 52700 mi $100 |
Engine mount, rear/firewall "dogbone" Serpentine belt tensioner Engine mount, rear/firewall "dogbone" Serpentine belt tensioner |
| 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. |
| 55000 mi US $630 |
Tailpipes and muffler separated from exhaust system |
| 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. |
| 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. |
| 78700 mi US $275 |
Replaced split PCV hose. |
| 152000 mi | Return of the CEL with same codes as before PCV repair |
| 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 |
| 20443 mi | CEL came on for oxygen sensor - TSB for false read - PCM software updated |
| 33439 mi US $444 |
Replace front brake rotors (266) + engine mount (178) |
| 85500 mi US $200 |
Replaced thermostat |
2003 Mazda Mazda6 4-door
4-cylinder automatic 2WD
| 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. |
| 95000 mi US $400 |
Passenger side muffler and pipe was leaking keeping the car from passing emissions. |
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