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EnginePart report

2004 Infiniti M45 Engine Problems

Complaints
7about this part
Share
16%of 43 total for the year
Median mileage
137,523miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the engine of the 2004 Infiniti M45, 16% of the 43 complaints for this model year. Where a mileage was given, the median is 137,523 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.

“The first incident happened on june 3rd driving to work and the car just gave out. It stalled, lights came on the dashboard and car died. I was able to drift to a side street in which I tried to start the car again; however, the car would not start up. I had to get it towed to my house. After sitting for the day, I tried to start it up again and it started. I was able to make it to the advance auto near my home where they put it on the machine to see if there was a problem with the alternator and/or battery. …”

NHTSA complaint #10515366, filed 2013-06, 137,519 miles

“The contact owns a 2004 Infiniti M45. While driving 65 MPH, the vehicle stalled without warning and failed to restart. The contact mentioned that the failure recurred several times. The vehicle was taken to an auto parts store, where it was determined that the cam shaft sensor needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 171,000.”

NHTSA complaint #10773839, filed 2015-09, 171,000 miles

“The contact owns a 2004 Infiniti M45. The contact stated that while at a complete stop, the vehicle stalled. The vehicle restarted after an hour and was able to be driven to the dealer where the failure could not be replicated. The vehicle was not repaired. The contact also stated that the failure recurred approximately eight times over the span of a month. The manufacturer was not notified. The failure mileage was 164,000...updated 02-13-13 updated 02/14/13”

NHTSA complaint #10494564, filed 2013-01, 164,000 miles

“The contact owns a 2004 Infiniti M45. The contact stated that the oil indicator lamp failed to illuminate, indicating that the oil level was low. As a result, the engine seized. The vehicle was towed to a local mechanic who diagnosed that the engine and the instrument panel needed to be replaced. The manufacturer was made aware of the failure who did not offer any assistance. The vehicle was not repaired. The failure and current mileage was 118,000.”

NHTSA complaint #10463517, filed 2012-06, 118,000 miles

“The contact owns a 2004 Infiniti M45. While the vehicle was stopped at a red light, the accelerator pedal was depressed, the engine stalled, and all of the warning indicators illuminated. The vehicle was taken to an independent mechanic where the diagnostic results were unknown. The vehicle was previously repaired under NHTSA campaign number: 03v455000 (engine and engine cooling) however, the remedy failed to prevent the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 168,000.”

NHTSA complaint #10783209, filed 2015-10, 168,000 miles

Engine: other model years

YearComplaintsShare of year
2008233%
2007415%
20061724%
2004716%
20032318%

Other parts of the 2004 Infiniti M45

Fuel system
29 complaints
Electrical system
5 complaints
Seats
3 complaints
Air bags
2 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints

← All problems reported for the 2004 Infiniti M45

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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