2006 Infiniti G35: engine failure

Filed Oct 4, 2016 · Engine · 80,000 miles · TX

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. Since this is appears to be a manufacturer defect, I believe it should be corrected by the infiniti company even that the warranty is expired due that I have addressed this to them on various previous visits ( I don't have the exact time this first happened, the date below is a estimated guess) to their service department.

Filed Feb 24, 2008 · Engine, Transmission · 7,800 miles · NJ

At ~7,900mi, I took my g35 coupe 6mt to infiniti dealership when I started hearing a knocking noise and noticed that the "check engine" light would come up every few times a week. I was called in 4 more times after that (every 1,000mi) specifically for oil-level testing. The dealership received an approval to replace the engine, and at 14,500mi, after just about 6 months, I drove out with a new one (10102-ac7m9). I was told to go easy for the initial 12-15k. After driving about 1000mi now, I am running low on oil. I just checked it myself. I plan on taking it to the dealership soon to record it formally. But this is not the only problem I am having, the new engine seems to be a lot louder and a bit sluggish too.. Yes.. Definitely not the ride I got used too!!

Filed Nov 26, 2007 · Engine · 6,000 miles · NJ

Excessive oil consumption noted at 6,000 miles. Continued with 1,000 mile interval test for oil consumption and found 1qt low at 7,000 miles, 1.5 qts low at 8,000 miles, and 1 qt at 9000 miles. Infiniti said they ordered me a new engine. This was a 2.5 months ago and I'm at 12,500 miles. I've had to top off my engine with a 2 quarts of oil and my own service department does not call me back.

Filed Oct 21, 2007 · Engine · 15,000 miles · CA

2006 infiniti g35 coupe 6-speed manual transmission 1- noticed the oil levels were too low before 3000mile. 2- engine's low oil levels would cause a noise in the engine and performance decreases, until additional oil was added. 3- I had to take the car into the dealer every 1000miles to monitor the loss of oil. (which was 1.5 to 2.5 quarts every 1000miles.) after 5 such check ups, infiniti approved replacing my engine. Engine was replaced this week. (10-18-07).

Filed Aug 24, 2007 · Engine · 6,000 miles · NJ

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. Ininiti consumer affairs states that the case is being researched. This is unacceptable for a leased vehicle & it needs to be addressed.

Filed May 31, 2007 · Engine, Transmission · 1,800 miles · FL

Tl*the 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.