| 1 | 0 | 3 | 4 | 3 | 4 |
2006 Infiniti M repairs by problem area
Engine (28%)
Transmission and Drivetrain (5%)
Brakes and Traction Control (8%)
Suspension and Steering (19%)
Electrical and Air Conditioning (23%)
Paint, Rust, Leaks, Rattles, and Trim (6%)
Other (12%)
Chart based on 344 repairs.
2006 Infiniti M engine repair cost distribution
$2500+ (1%)
$1000 - $2499 (11%)
$500 - $999 (19%)
$100 - $499 (37%)
< $100 (32%)
Chart based on 90 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2006 Infiniti M 4dr Sedan
335-horsepower 4.5L V8 5-speed shiftable automatic RWD
| 75000 mi | Prior to last 3,000 miles oil change, had to add 3/4 quart. Car burns oil, a problem that has existed since it was brand new. Dealer says it normal. Have had to add a full quart between oil changes in the past. |
| 128000 mi US $53 |
VERY loud tapping noise. Told that it is probably the #8 cylinder and may need another engine. |
| 34000 mi | Engine making light tapping noise when warm, in gear at idle. Issued traced to a faulty fuel damper on the passenger side fuel rail. Part replaced per technical service bulletin and covered free of charge under Infiniti customer good will. |
| 57000 mi | Fuel quantity sensor replaced because the indicator would never show full even though the tank was full. fuel quantity sensor |
| 26000 mi | Car started very rough, made lots of tapping noise, puff of bluish/white smoke, had to try to start 3-4 times. once started ran fine, no noise, I suspect fuel pump or some electonic starting issues. |
| 75500 mi US $100 |
Replaced Fan Controller for radiator fan. |
| 128000 mi US $200 |
Fan controller for radiator fans failed. Replaced faulty controller. |
| 161000 mi US $300 |
Crankshaft position and cam phase sensors replaced |
| 124000 mi US $500 |
Fuel valve was faulty and had to be replaced. |
| 218000 mi US $300 |
Radiator Fan was cycling on high and it was louder than normal, no warning lights on in the car. Had control unit replaced. This allows fan to cycle to low or high fan. |
| 220000 mi US $1400 |
Had to replace one of the Catalytic Converters. |
| 269000 mi US $1300 |
Emissions system. Replaced 2nd catalytic converter. |
| 286000 mi US $1900 |
Radiator, water pump, belts, coolant and oil replaced. |
| 286000 mi US $640 |
Oil leaking, Strong burn odor in car cabin. Passenger side seal around rearmost spark plug defective allowing oil to build up in spark plug tube. Replaced Passenger side valve cover with new gasket to resolve. |
| 35000 mi | Excessive oil consumption. Car is using one quart every 1500mi. This, as I found out in the NICO forum, is quite common on the 2006 M45 (V8 Model). I am very Pissed Infiniti did not fix this problem as they knew about it on the old 2003-5 M45 as well. |
| 6000 mi | Number #7 piston failed. http://www.youtube.com/watch?v=KDQeCOJZcDM New engine installed (long block) |
| 68000 mi | Oil eating car. Infiniti even changed the PCV routing and designed new valve covers in 2008. The system was sucking the oil right out of the engine. Infiniti danced around on the issue. Only fix is new V8, $15k. I finally had enough and traded it in. |
| 115000 mi US $75 |
Replace fan control module |
| 70000 mi US $250 |
rough start and pulsing during drive, then check engine light. Issue was fuel vent stuck closed, causing pressure to build in tank and line. Replaced fuel vent. slightly rough idle. Diagnosed as need for idle reset - should have occurred when battery was replaced months ago. |
| 66500 mi | Have continued to complain since 20k miles about a VERY rough start with engine clanking like an old diesel truck. Very loud! Lasts 30 seconds and then valves will continue to rattle for about 5 minutes. No solution! |
| 83000 mi US $2100 |
Two sensors and the catalytic converter had to be replaced after having to be towed twice. Being stranded on the freeway in the HOV lane got our attention - I ordered a 2012 BMW 328i today. Expect delivery in 8 weeks. |
| 95000 mi US $1000 |
Overheating - radiator replaced |
| 78000 mi US $299 |
3 computer sensors were apparently rusty and not making contact |
2006 Infiniti M 4dr Sedan
280-horsepower 3.5L V6 5-speed shiftable automatic RWD
| 110000 mi US $600 |
radiator replacement |
| 66000 mi US $65 |
Service engine soon light came on - took it to my mechanic to check, light indicated that there may be a leak in the fuel system. Did smoke test - no faults found, reset and no problem since. |
| 67000 mi | Oil sensor and gasket sensor needed to be replaced. Cost $250. |
| 77000 mi | minor leak in fuel line - possible due to fuel cap. Will monitor and if same problem occurs, fuel cap check for leaks and smoke to see if leak in th line itself. |
| 78000 mi US $125 |
Vehicle was dripping oil. Discovered a few months ago, but told by dealer it was OK. Rediscovered during an check engine light - which was due to gas cap leak and not to the oil issue. New oil sensor gasket installed + oil change. |
| 91500 mi US $150 |
Leak in emissions system |
| 99000 mi US $200 |
Thermostat broke causing radiator to overheat and crack. Cam Sensor cause by engine overheat; probably could have avoided this if I'd had the car towed earlier. |
| 188000 mi US $250 |
Transmission mount |
| 149000 mi US $325 |
Evap canister was not sealed correctly so I wasn't able to pump gas at a consistent rate. Repair was done, all is well now. |
| 84000 mi US $500 |
Replaced coolant temp sensor, camshaft position sensor, fuel injectors, valve cover gaskets |
| 170400 mi US $150 |
Oil leak around valve cover gasket |
| 89000 mi US $225 |
Camshaft position sensor in the left bank failed and had to be replaced. |
| 90000 mi US $400 |
Oil leak at the oil pump, fixed with new o-ring and reassembly. |
| 98000 mi US $3150 |
Radiator replaced due to a crack Engine belts replaced |
| 103000 mi US $575 |
Cooling fan motor replacement. |
| 98000 mi US $525 |
Bad camshaft position sensor causing car to stall. This is the second time for one of the sensors to fail (there are 2). Mechanic replaced 3 sensors in all to ensure safe operation. |
| 136000 mi US $2000 |
Coolant Leaks |
| 154000 mi US $600 |
intake hose belts |
| 4800 mi | Oil leak. Fixed by dealer in one week in shop. |
| 67000 mi | There was a leak in the engine cap somewhere. Infiniti had already extended the warranty to 75K because of the known issue. Hence it was repaired under warranty. |
| 38000 mi | Recall to replace electric fan sensor |
| 60900 mi US $100 |
Had VVT solenoid sensor replaced. |
| 125800 mi US $330 |
Replaced cracked radiator |
| 159000 mi US $368 |
replaced spark plugs, oil leak at engine cooler both fixed |
| 180000 mi US $500 |
Heard a gurgurling noise from engine air was in coolant, had coolant changed and refilled. Corrected problem. |
| 213000 mi US $850 |
replaced right side converter |
| 236000 mi US $100 |
Had to replace 2 ignition coils and spark plugs |
| 54000 mi | Heatshield and/or Y Pipe issue causing noises, which started approx. around 51k miles |
| 89900 mi US $450 |
Camshaft sensor harness shorted out camshaft sensors. |
2006 Infiniti M 4dr Sedan
280-horsepower 3.5L V6 5-speed shiftable automatic AWD
| 48000 mi | "Valve covers leaking. Defective valve covers. Replaced valve covers." "M35/45 fan ctrl mdl ITB08-P8227" |
| 13000 mi | Failed mass air flow meter, car ran very rough at idle, occasionally stalled when being driven |
| 21000 mi | Car ran very rough for approx 4 minutes. Car was shut off, restarted and it ran fine. Dealer could not find the problem |
| 74000 mi US $150 |
drive belt tensioner weak, replaced by dealer |
| 40000 mi | Some kind of temperature valve for engine cooling replaced. |
| 77000 mi US $429 |
Replaced 2 belts |
| 103000 mi US $800 |
Valve Gaskets Leaking-When opened found plastic valve cover lost metal plug-leaking oil into a cylinder. Replaced both valve covers (from E-Bay OEM parts 1/2 Cost from dealer) and gaskets. The Infiniti dealer wanted $1400.00 just to replace the valve gaskets. Gawd knows what they'd have charged with the defective valve cover found if my neighborhood mechanic hadn't have done it. Dealer prices are nutz!!! |
| 93000 mi US $200 |
Thermostat failed and car started to overheat. Replaced part and added coolant |
| 59000 mi | Radio, Navigation, climate controls, and screen would lock up. Bluetooth module was replaced. The 2-3 shift was harsh and the TCM was reprogrammed. |
| 122000 mi US $300 |
Oil was leaking from filter area, had to replace the part that the oil filter attaches to to stop the leak. |
| 135000 mi US $800 |
Serpentine belt replaced, shop said it was cracked pretty bad (although don't they always say that!) |
| 200000 mi US $800 |
replaced engine |
| 10000 mi | Car went into limp mode twice. Check engine light came on. Replaced sensor. |
| 174500 mi US $80 |
It was turning off while driving, the mechanic told me it was the crank shaft sensor. Problem fixed. |
| 130760 mi C $1200 |
muffler disconnected from exhaust |
| 132680 mi C $130 |
reweld a separated flange in the exhaust system |
| 133300 mi C $123 |
Exhaust broke in another spot, at front flanges. Pins remained and were effective to keep the exhaust from falling to the ground, but noisy. Exhaust welded. |
| 59000 mi US $100 |
Exhaust pipe broken at rear resonator. Pipes cut and new section welded into place. |
| 78300 mi US $568 |
Exhaust heat shield broken, rattling |
| 80900 mi US $265 |
Leaking exhaust pipe at Y connector and near muffler. Shop welded repairs without replacing any parts. |
| 87000 mi US $410 |
Exhaust pipe leaking, rusted through. Replacement part not available, shop crafted a new piece & welded into place. |
| 101420 mi US $370 |
Cam position sensor failed. Both sensors replaced. |
| 61000 mi | Valve seal |
| 62000 mi | Mass Air Flow Sensor on throttle body malfunctioned. |
| 174000 mi US $1200 |
Entire exhaust replaced |
| 163380 mi C $1200 |
Replace blocked heater core. |
| 114000 mi | 2 oxygen sensors failed entire exhaust system rusted out |
| 54560 mi C $200 |
Crank sensor was replaced |
| 159000 mi US $400 |
Exhaust - Y-Pipe heat shield was rattling/loose ( removed them) Replaced Y-Pipe connectors |
| 66200 mi US $800 |
Replaced muffler. No aftermarket parts available |
| 76200 mi US $800 |
Had to replace muffler |
| 33651 mi | Replaced thermostat |
| 59885 mi US $1006 |
Thermostat replacment |
| 105000 mi US $443 |
Replaced defective camshaft position sensor |
2006 Infiniti M 4-door
8-cylinder automatic 2WD
| 15000 mi | the engine, on start up, sounded like a diesel. it rattled, clanked, and sounded like there was no oil in the car. i quickly turned off the car and checked the oil. i tried again with the same result. because i thought the engine was starved of oil... |
2006 Infiniti M 4-door
6-cylinder automatic 2WD
| 32000 mi | Two of the four tire pressure sensors failed to read the current tire psi. A "*" appeared on the LCD for the two rear tires. Dealer recalibrated the sensors during the 30K service appointment. Sensors have since been fine to date. |
See TrueDelta's information for all Infiniti models.
