Infiniti Q50 owners have reported 77 engine and engine cooling related problems since 1996. Table 1 shows the 7 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's engine and engine cooling (65 problems). The second most common problem is related to the vehicle's engine belts and pulleys (4 problems). For details of each of the problem category, use the links in the table.
The valve body on these cars are useless. Driving down a highway and cant shift out of 3rd gear almost had a car re-end me. Today I am driving and the ecu is not responding I see the check engine light on then I'm like not again. This would be the 3rd valve body I replaced. Read details...
Engine has rough idle while in park. Even after the following maintenance was done. Replacing spark plugs, engine software update, coolant flush, power steering flush, fuel system clean, new mass air flow sensors both sides, serpentine belt, all new gaskets on top part of engine, valve cover, Read details...
During 20 degree f, I drove my car with no issues to a retail store, parked it in a parking lot. After shopping, returned to my car & started it up, put in reverse, started backing up, then several malfunction lights lit up on the car's dash & the steering wheel locked all of a sudden. Read details...
The serpentine belt makes consistent noise in all types of weather. Already had the dealer replace it once. Noise came back and the dealer now says it could be the tensioner pulley. Read details...
On 6/13/2020 the drive belt shredded while driving under 30mph, under light acceleration. At first, the battery light illuminated on the instrument cluster, followed the check engine light. White smoke began to come from the engine. Thankfully, I was nearby my house and made it there safely. Read details...