2003 Infiniti FX35 Engine cooling Problems
- Complaints
- 4about this part
- Share
- 7%of 61 total for the year
- Median mileage
- 87,275miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2003 Infiniti FX35, 7% of the 61 complaints for this model year. Where a mileage was given, the median is 87,275 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have an '03 Infiniti FX35 with 90,000 miles. I'm not an abusive nor negligent operator and have had all my services well maintained. Car began by overheating 15 hours into my 16 hour drive home from yellowstone this summer. It started overheating when I slowed down in towns and such...replaced my thermostat....flushed everything....drove for quite a few weeks more with no problems...thought it was solved :/ not quite. Overheating began once again...this time I had my heater going and noticed it going cold then within minutes my temp began rising. …”
NHTSA complaint #10307630, filed 2010-02, 85,000 miles“2003 Infiniti FX35, engine broken with mileage only 89,992. No car accident record. Well maintenance done by dealer. Manufacturer has no idea what cause the engine broken.”
NHTSA complaint #10216277, filed 2008-01, 89,550 miles“Purchased a new 2003 Infiniti FX35 which currently has 117,000 and properly maintained with the dealer based on auto booklet maintenance schedule. At 101,000 and frequently thereafter the vehicle when driving would just suddenly overheat and engine cooling system malfunction causing automobile to suddenly lose power and start to shut down while driving on major highways or roads. Dealer cannot determine what is causing the malfunction or fix the problem. This is a very serious safety hazard and dangerous on highway when you driving at 65 MPH. …”
NHTSA complaint #10253345, filed 2008-12, 117,000 miles“The contact owns a 2003 Infiniti FX35. The contact stated that while driving approximately 35 MPH, the engine reduced power and stalled. The power steering and braking ability was lost. After twenty minutes, the contact restarted the vehicle after several attempts. The contact made and appointment with the dealer for diagnostic testing of the vehicle. There were no recalls. The vehicle was not yet repaired. The failure and current mileages were approximately 35,000.”
NHTSA complaint #10340470, filed 2010-06, 35,000 milesRelated service bulletins
- 10145053Aug 17, 2018OBD II EVAP Tube Warranty Enhancement UPDATE August 17, 2018 Please discard earlier versions of this bulletin. The announcement from March 21, 2017 has been revised to include…
- 10145052Aug 17, 2018OBD II EVAP Tube Warranty Enhancement UPDATE August 17, 2018 Please discard earlier versions of this bulletin The announcement from March 21, 2017 has been revised to include: o…
- 10019293Mar 31, 2006Malfunction indicator lamp with diagnostic trouble code u1000 or u1010 stored in engine control unit. 2002 - 2006 infiniti vehicles with can communication.
- 10019621Mar 30, 2006Engine oil cooler gasket available.
Engine cooling: other model years
Other parts of the 2003 Infiniti FX35
13 complaintsLatches, locks and linkages
12 complaintsElectrical system
8 complaintsBody and structure
8 complaintsBrakes
5 complaintsOther or unknown
5 complaintsSeats
5 complaintsEngine
4 complaintsTransmission and drivetrain
4 complaintsExterior lighting
3 complaintsSeat belts
2 complaintsSteering
2 complaints
← All problems reported for the 2003 Infiniti FX35
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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