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Engine coolingPart report

2012 Mazda MAZDA6 Engine cooling Problems

Complaints
1about this part
Share
1%of 99 total for the year
Median mileage
42,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2012 Mazda MAZDA6, 1% of the 99 complaints for this model year. Where a mileage was given, the median is 42,000 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 contact owns a 2012 Mazda 6. While driving approximately 55 MPH, an abnormal sound emitted from the engine compartment. The failure recurred multiple times. The vehicle was taken to a dealer for diagnostic testing. The technician diagnosed that the catalytic converter seal ring needed to be replaced. The failure recurred. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 42,000.”

NHTSA complaint #10649784, filed 2014-10, 42,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
201211%
201010%
200951%
200822%
200796%
200695%
2005117%
2004117%
20033621%
20021036%

Other parts of the 2012 Mazda MAZDA6

Air bags
30 complaints
Exterior lighting
28 complaints
Other or unknown
20 complaints
Electrical system
12 complaints
Body and structure
12 complaints
Suspension
8 complaints
Fuel system
4 complaints
Steering
4 complaints
Brakes
2 complaints
Engine
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Electronic stability control
1 complaints

← All problems reported for the 2012 Mazda MAZDA6

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