| 1 | 0 | 3 | 4 | 3 | 4 |
Infiniti EX repairs by problem area
Engine (28%)
Transmission and Drivetrain (3%)
Brakes and Traction Control (2%)
Suspension and Steering (10%)
Electrical and Air Conditioning (31%)
Paint, Rust, Leaks, Rattles, and Trim (17%)
Other (8%)
Chart based on 365 repairs.
Infiniti EX engine repair cost distribution
$2500+ (1%)
$1000 - $2499 (12%)
$500 - $999 (13%)
$100 - $499 (19%)
< $100 (55%)
Chart based on 84 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2013 Infiniti EX 4dr SUV
325-horsepower 3.7L V6 7-speed shiftable automatic AWD
| 90520 mi C $2500 |
Plugged roof drain caused water ingress that damaged engine CPU |
2011 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 61000 mi US $250 |
Mass flow sensor |
| 80019 mi US $230 |
Idler pulley replaced |
| 35340 mi | Driving belt broke |
| 75000 mi US $7000 |
Radiator failed |
| 83448 mi US $1056 |
cracked radiator |
2010 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 5-speed shiftable automatic RWD
| 94000 mi US $687 |
Replace radiator due to a leak that I believe was caused by the tire shop doing an alignment |
| 31000 mi | Radiator fan made squeaking noise as it wound down after shutoff. Tech and service advisor heard the noise. Said they would order the part. Came back a week later Had not ordered the part because it cost over $500 Lead tech did not hear it. Right radiator fan squealing on shut down and cold starts. Dealer finally fixed the problem. This time I left the car, received a G37 loaner and have since sold the car. |
| 1800 mi | Code showed up but no lasting problem found. Dealer reset engine light and no further problem. |
| 6800 mi | Car would stall at stop when accelerator pushed. Dealer admitted that this is a problem and had a fix via software update. |
| 13000 mi | Car stalls when coming to a stop or starting from a stop. It has also stalled when making a turn. To engine light comes on and car starts right up. It's had two repairs but still not fixed. I believe this is a safety problem, |
| 16000 mi US $65 |
Car stalls at inconvenient times. Has happened about 15 times since delivery. Cannot replicate or locate problem. Dealer put a computer on car for 10 days, but problem did not appear during that time. This is a safety problem. |
| 19000 mi | Intermittent stalling. Dealer installed new EFI harness and engine control module. |
| 34000 mi | engine starts and stalls right after requiring to pump the gas to maintain idle something that has to do with maintaining proper oil pressure(seal and cover) was replaced |
| 75000 mi | coolant leak at the top plug oil leak detected at timing chain cover |
| 29000 mi | Fuel pump suddenly stopped working. Had to be replaced. |
| 40000 mi US $1500 |
Car wouldn't start. New battery did not solve the issue. Turned out to be an unusual electrical problem requiring a part that had to be ordered. So car stayed in the shop for a few days until part arrived. Then easily, but expensively, fixed. |
| 3000 mi | Had ECM replaced to try to get rid of loud whine in motor. Did not work. |
| 43000 mi US $750 |
Radiator burst. The car started driving very jerky and took several minutes to get up to driving speed after getting stuck at red light. I put my flashers on and stayed in the right lane, and called my service station. |
2010 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 5-speed shiftable automatic AWD
| 87420 mi C $1742 |
Car died on the highway, overheating. Radiator cracked and thermostat replaced |
| 98000 mi US $300 |
Exhaust bracket/hanger broke causing leaking gasket - most likely due to bad road bumps. |
| 1240 mi | Warning light for the purpose of alerting driver to service engine soon stayed on at all time. Informed service manager at dealership and was reassured that the vehicle was safe to drive. Appointment made for diagnostic test. |
| 20000 mi | First noticed problem when filing car with gas. Would overflow before stopping the pump. First attempt by dealer cause the check engine light to come on when I got it home. They fixed check engine light but still overflows when filling tank. |
| 83000 mi US $30 |
Replacement of serpentine belt |
| 109200 mi US $1600 |
Radiator split and overheated. Replaced radiator, hoses, clamps, cap, and thermostat. Also had oil change completed. |
| 94000 mi | system started overheating. Replaced radiator |
| 57880 mi | Fuel sensors not working, parts ordered |
| 39840 mi | Gas sensors |
| 48100 mi | Car shuts down when raining, at times only. Clean intake. Change brake fluid. . |
| 52080 mi C $1000 |
Engine would crank, no start. Fuel pump needed to be change again (last time in feb 2003)! Dealer and Inifinit Canada no help: I had to pay for the work... |
| 57040 mi C $550 |
After the fuel pump replacement earlier, I got a no start and it was a fuel pump relay. |
| 92380 mi C $180 |
Muffler Fladges bolts were broken,,, rusted. Had to be replaced |
| 100000 mi US $800 |
Cracked radiator required replacement |
2009 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 5-speed shiftable automatic AWD
| 40000 mi | Random. Car would not start. |
2008 Infiniti EX
Engine not specified
| 6200 mi | Humming noise at start up, fuel pump replaced. |
2008 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 5-speed shiftable automatic RWD
| Loud vibrating/humming noise when starting auto. Replaced fuel pump. Second fuel pump replacement, still unsuccessful. | |
| 1000 mi | Third fuel pump replacement, still unsuccessful. Fourth fuel pump replacement, still unsuccessful. |
| 2000 mi | Fifth fuel pump replacement finally eliminates noise. |
| 11000 mi | Noisy fuel pump replaced. |
| 8000 mi | Had the noisy fuel pump replaced. |
| 102000 mi | The car intermittently stalls on start up. Went to mechanic, he pulled codes; however, unable to diagnose issue. Will keep you informed. |
| 27000 mi US $1033 |
Radiator replaced. |
| 15000 mi | Service engine light came on. R and r evap vent valve due to leak. |
| 4000 mi | Noticed a noise coming from rear of vehicle at startup. Immediately diagnosed and fixed a dealership within 2 hours - required replacement of fuel pump. Apparently a known problem. Repair successful. |
| 110700 mi US $900 |
Radiator ruptured during normal driving conditions. Stopped when saw temp high, then noticed losing coolant. Took one day for part to arrive from Infiniti (dealer only part). Radiator replaced with new unit. Back on road with no issues. |
| 211000 mi US $200 |
Radiator Hose bracket broke causing immediate loss of coolant similar to a blown hose. Had the vehicle towed to the shop where the problem was diagnosed and repaired on the same day. Back on the road with no problems. |
| 5000 mi | Funny sound when car started, know fuel pump issue. Changed without any problems. |
| 3000 mi | Fuel pump making moaning noise. Replaced with updated fuel pump identified in TSB. |
| 16000 mi | Bad fuel pump. Originally replaced approx. 3 months earlier due to recall/TSB. Replacement pump failed. |
| 32000 mi | Radiator leak on fitting. |
| 19000 mi | Fuel pump that "moaned" during start-up was replaced (TSB) |
| 56300 mi | Driving on freeway and check engine light came on and car jolted. Turned out radiator blew out, there was also a leak in radiator hose. |
| 1000 mi | Coolant leak due to faulty clamp. They replaced clamp and installed new lower radiator hose. |
| 3000 mi | Defective fuel pump replaced. |
| 57400 mi US $800 |
New radiator |
| 99000 mi | Oil pan leak |
| 80000 mi US $12 |
Shop diagnosis new radiator required $700 |
| 64700 mi US $100 |
radiator |
| 59000 mi US $1900 |
Gas tank partially detached |
| 62500 mi US $200 |
Sensor malfunction |
2008 Infiniti EX 4dr SUV
297-horsepower 3.5L V6 5-speed shiftable automatic AWD
| 167000 mi US $119 |
Gas pressure warning, resulted in needing a new gas gap. |
| 100000 mi US $700 |
I had to have the radiator replaced. |
| Fuel pump making humming noise |
| 4000 mi | Replace fuel pump due to noise at start-up |
| 75000 mi US $320 |
timing sensor |
| 82500 mi | Per TSB engine timing had to be reprogrammed. No charge. |
| 1000 mi | Fuel pump made noise on start up. |
| 4340 mi C $310 |
Fuel pump excessively noisy. |
| 14000 mi | Fuel pump makes high pitched whining noise. Replaced by dealer for free. |
| 4000 mi | Needed a new fuel pump since had the dreaded moan on start-up. Never had it replaced. Had an unusual moaning sound when first driven and making a turn. Dealer said he had two demos which did the same thing but Infiniti had not identified the cause. |
| 1860 mi | Rattling heat shield corrected by replacing center exhaust tube. Groaning noise during startup, traced to defective fuel pump - replacement ordered. |
| 2480 mi | Noisy fuel pump replaced. |
| 26500 mi US $170 |
Car engine would shut off at low speeds Fuel pump noisy. Replaced under TSB |
| 37000 mi | Check Engine Light came on. Required dealer to tell me the gas cap had a vapor lock problem that required removing and replacing the same gas cap. |
| 17000 mi US $550 |
Fuel pump whining noise |
| 3000 mi | fuel pump replaced |
| 18800 mi | Dealer also noticed that my plate baffles were bad and needed to be replaced. |
| 77000 mi US $388 |
Car would start and cut out 1 second later. Had it towed to a shop, and they found both throttle bodies were jammed up. Cleaned them and it seems to have fixed the problem. |
| 56900 mi US $125 |
Motor stopped immediately after starting, and acts as if it is going to kill upon stoping at stop light, but only very occasionally. Throttle body cleaned, another component serviced. Symptoms continue, but only very occasionally. |
| 95480 mi C $1100 |
radiator leaked |
| 102300 mi C $360 |
Cooling system. A persistent small leak in the radiator somewhere near it's center right side. Replaced radiator with a premium one bought online. Usually a such a repair is easy... just take off a bit of shielding on the top, a few screws and lift out the rad. BUT with the EX35, we had to get at everything from the front... remove the entire front grill, cross bars, remove the A/C lines and evaporator TOO! (had the CFCs / Freon captured by my mechanic for $C45 (friendly to the environment!). Both the A/C compressor from last year and the radiator are working fine after many months. Have to recharge the A/C soon... summer is coming. Happy I have the evac pump, gauges and freon already. |
| 123380 mi | The Check Engine Light started coming on randomly over the last year. Each time is was the same OBC error OBD code P2A00 - A/F Sensor 1 Bank 1. It would clear itself after a few days, but then not so I erased it. Now the light returned all the time. I will change now change the sensor and report back on the next cycle. |
| 184760 mi C $5800 |
Roadside Assistance put DEF (Diesel Exhaust Fluid) into gas tank when I ran out of gas on the road. Urea crystals everywhere in the fuel system. They paid the CDN $5800 to flush tank, 2 new fuel level sensors, new fuel lines and all new injectors. NOT THE FAULT OF THE INFINITI... and OOPS by a young tow truck operator. |
| 96000 mi US $10 |
Cleaned air intakes and MAF sensors and did a reset of the ecu. |
| 89200 mi US $170 |
Radiator side tank leak,non repairable. Replaced with new one |
| 87000 mi US $600 |
Car overheated. Found hole in radiator, which leaked out all the coolant/antifreeze fluid. Had to replace radiator. |
| 18600 mi C $762 |
Car started running rough as if running on 3 cylinders. I had it towed to the dealer (additional $75). Replacing the spark plugs fixed the problem, but iridium plugs should last more than 30k especially on a car used only on the highway. |
| 50800 mi US $1100 |
Left bank valve timing sensor failed. |
| 88000 mi US $300 |
IDLE |
| 9000 mi | Fuel pump was bad . Making a funny noise suddenly |
| 120000 mi US $1000 |
radiator leak stalling |
| 122000 mi US $630 |
Radiator replaced due to leak |
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