Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2006 Infiniti G35 owners, lightly cleaned up (personal details are redacted by NHTSA).
Excessive engine oil consumption. The vehicle has 148K miles. This problem has resurface many times in the past and I get a warning that the vehicle need to be service. Each time the dealer informed me that the oil level was low and after they add oil and reset the warning it is fine until the oil again goes below the safe level. The car has been maintained by the same dealership since it was purchased. On the last previous services due to this issue I been told that the engine needs to be replace. Navigating the internet I have found various similar complains from customer were the dealer has replaced the engine. …
Tl* the contact owns a 2006 Infiniti G35. While traveling approximately 30 MPH, the vehicle suddenly stalled and the service engine warning lamp, slip warning lamp, and vdc off warning lamp illuminated. The contact was able to pull the vehicle over, turn off, and restart the vehicle. The vehicle was not included in NHTSA campaign number: 03V455000 (engine and engine cooling). The vehicle was taken to an authorized dealer where it was diagnosed that the crank (camshaft) position sensors needed to be replaced. The manufacturer was notified of the failure. The approximate failure mileage was 161,218.
My 2006 infinity G35 manual transmission has 86,000 miles and has excessive oil consumption. I put 3 quarts of oil in after just 700 miles of driving. I took it to the dealership for an oil consumption test. They confirmed that there are no leaks. They performed an oil change and placed dye in the oil. I'm to take it back after 500 driving miles. There are multiple complaints on the internet regarding this exact issue; however, to date, Nissan has not issued a recall. This is completely unacceptable. I have taken excellent care of my car and now this - no support from Nissan. Please NHTSA help!
Unusual high oil consumption noticed around 25,000 miles. I am 61 years old and do not drive much or abuse the engine, I just wanted a reliable car with manual transmission. #1 dealer (very hostile) tested oil after 1000 miles showing only 4mm missing, however the same morning I have documented pictures showing 9 to 10mm of oil missing on the dip stick. Conclusion: dealer added oil prior of calling me in to see their oil check! Asked Infiniti consumer affairs to redo test at second dealer. #2 dealer was much nicer to my complaint, but when I received the car after the free oil fill, the dip stick was sealed with a plastic tie! Their answer was: "you are not supposed to check the oil level until you come back after 2000 miles" !!!. After 2000 miles of driving they opened the seal on the dip stick which showed about 12mm of oil loss. (have picture). …
I own a 2006 Infiniti G35 coupe that has less than 60K miles and burns two quarts of oil every 1000 miles. I originally became aware of the problem back in 2008. I took my vehicle to the dealership to begin excessive engine oil consumption testing. At that time I only drove about 200 miles a month and the dealer said I needed to be driving 2500 miles to perform the test. I explained that there wasn't a way to put the mileage on my car without unnecessarily driving around town. My car requires premium gas and it's absolutely ridiculous for someone to think I would spend thousands in gas to show my car has a oil burning issue. Last month after less than a thousand miles since my last oil change, my service engine light came on. I took to the dealer immediately and they said my car definitely has a oil consumption problem. …
I was heading south on I 75 in florida heading towards bradenton in the passing lane doing between 75 & 80 when my engine shut down making a loud noise. I immediately put my flashers on and was able to move to the side of the road in the emergency lane, luckily there was one. The car behind me went to the middle lane at that point. I am so furious this happened as I just had my car serviced the week before and I am 72, a senior citizen. The cooling fans apparently knocked out the thermostat. I had it towed to the dealer in tampa who then informs me the warranty was extended on a recall till October and that Infiniti would pay for the cooling fans but not the thermostat... I think all Infiniti owners should've been notified of this problem and had it fixed but no letters were written, its an unwritten recall apparently because they have had problems. …
I want to report that Nissan/Infiniti has a major defect with the engines being used in the Infiniti G35 and Nissan 350z cars. The defects are causing engines to blow due to low oil capacity. This is a major safety threat to the owners of the cars and to other motorists on the road. I want Infiniti to take back my vehicle because I believe it is a safety threat to me, my wife, my 3 year old child and other motorists around me. Infiniti has been unwilling to work with me in this capacity. The evidence against Infiniti is staggering as can be seen on the discussion threads that I have posted below. …
Not sure this is something you would pursue but I have not been able to get satisfaction from lake norman Infiniti locally or their national customer service support desk. I have a 2006 Infiniti coupe with 24K miles on it. I had an issue with what was determined to be the cooling fans for that car. I was told by the parts manager(john) at the dealership that car has known issues with the cooling fans. The service manager (victor) sent me to the national team. The car went into service on 08/05/06. The part failed on or about 08/15/14. I am being told by the national team that the part had a 8 yr ' hard' warranty on it. There have since been denials about the part being defective since my initial contact with lake norman dealership. I was there in March of 2014 for service and was never communicated an issue with that part. The car has low mileage as it sits in the garage most the time. …
When my leased 06' G35 coupe hit around 6,000 miles it started making a rattling sound from under the hood. When I brought the car to the dealership to be checked on they advised me that my engine was consuming too much oil & that the engine would have to be replaced. They replaced the engine but than at around 7,000 miles the same noise came back. I have been to the dealership 4 times in the last 3 months and everytime I go back the car is 2-3 qrts oil low. The problem is that the engine that they replaced my old engine with has the same issue & it will continue to happen unless I am given a new manufactured engine - which seems to be unavailable. This is a major safety concern for my family & I want them to take back the vehicle or provide me with a new engine. I have complained to Infiniti consumer affairs who are aware of the situation but I feel I am getting nowhere. …
Tl contact owns a 2006 Infiniti G35 sedan. The contact heard a ticking sound while accelerating. The dealer was unable to diagnose the cause of failure. The check engine light illuminated at 3,300 miles. The dealer replaced the cam shaft sensor. At 6,400 miles, the ticking noise returned and the check engine and oil lights illuminated. The dealer diagnosed the vehicle as consuming a large amount of oil. The vehicle was put through an oil consumption test and failed twice. At 7,500 miles, the vehicle stalled while turning and the check engine light illuminated once more. The dealer has diagnosed the vehicle as needing a new engine and would like to install a test engine designed for this type of failure. The engine size was unknown. The current mileage is 8,600 and failure mileage was 1,800. The consumer stated the vehicle shifts very rough. Updated 07/06/07.
Engine complaints in other G35 years
Frequently asked questions
How common are engine problems on the 2006 Infiniti G35?
NHTSA has 35 complaints about the engine & cooling of the 2006 Infiniti G35, 24% of the model year's 145 complaints. The component named most often is engine (6 mentions).
Is there a recall for 2006 Infiniti G35 engine problems?
No. NHTSA lists no engine & cooling recall for the 2006 Infiniti G35, though it has 2 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2006 Infiniti G35 engine problems start?
Half of the complaints with a recorded mileage happened before about 28,000 miles, and 47% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.