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Engine coolingPart report

2003 Infiniti G35 Engine cooling Problems

Complaints
67about this part
Share
13%of 533 total for the year
Median mileage
98,000miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 67 complaints about the engine cooling of the 2003 Infiniti G35, 13% of the 533 complaints for this model year. Where a mileage was given, the median is 98,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Today, I found 2003 Infiniti G35 sedan leak oil into spark plug hole. Oil leak into the spark hole would cause engine fire with high voltage from ignition coils. I also found this issue was not limited to my vehicle but most of Infiniti/nissan vehicles had this problem. I believe nissan already has known this issue. I hope NHTSA would do something for all of nissan/Infiniti vehicle owners.”

NHTSA complaint #10376996, filed 2011-01, 117,000 miles

“My 2003 Infiniti G35 sedan has an oil consumption issue. Everytime I do an oil change, about 1000 to 1200 miles I check my oil dip stick. It is half way below the full mark. I have repeated done this procedure over 10 times already and have read that this is a common issue with Infiniti and nissan.”

NHTSA complaint #10255880, filed 2009-01, 86,215 miles

“I have a 2003 Infiniti G35 coupe with a cam angle sensor that went bad. There was a large batch of these issued for 620,000 vehicles, but not covered under my VIN. I was supplied with a faulty part that could put my life at risk in the event the car shuts off on the highway.”

NHTSA complaint #10341823, filed 2010-07, 96,108 miles

“The cam shaft position sensor went out on my infinity G35 causing a complete loss of power and almost caused a wreck. There is a recall on that year, but when I contacted infinity, they said that my model was not affected by the recall. Apparently that model has the defect. The refused to repair it.”

NHTSA complaint #10232711, filed 2008-06, 98,000 miles

“I was driving on the freeway and the car stopped. I had the car towed to a mechanic and he informed me that the cam shaft sensor and crank shaft sensor has gone bad. There was a nissan recall associated with this defect and they refuse to repair the defect.”

NHTSA complaint #10349321, filed 2010-08, 93,000 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200844%
200798%
20062114%
20052110%
2004219%
20036713%

Other parts of the 2003 Infiniti G35

Electrical system
220 complaints
Visibility (wipers, defrost, mirrors)
78 complaints
Engine
62 complaints
Exterior lighting
54 complaints
Brakes
53 complaints
Equipment
48 complaints
Transmission and drivetrain
22 complaints
Air bags
18 complaints
Seats
17 complaints
Fuel system
15 complaints
Vehicle speed control
12 complaints
Other or unknown
9 complaints

← All problems reported for the 2003 Infiniti G35

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology