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Engine coolingPart report

2007 Mazda MAZDA6 Engine cooling Problems

Complaints
9about this part
Share
6%of 156 total for the year
Median mileage
55,979miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 9 complaints about the engine cooling of the 2007 Mazda MAZDA6, 6% of the 156 complaints for this model year. Where a mileage was given, the median is 55,979 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.

“All of a sudden our car started making a horrific sound, especially when accelerating. We took it to a mechanic who had to replace the timing chain kit and tensioner assemblies. Doing simple online searches for this problem, this appears to be a major issue with a lot of Mazda vehicles, yet still there has not been a recall covering this issue.”

NHTSA complaint #10679845, filed 2015-01, 120,000 miles

“Mazda6 2007 march: car loses power for no apparent reason and with no warning. It may be a faulty EGR valve. When failure happens the car will not accelerate. This has happened on narrow road and on motorway when overtaking. Both times other road users have had to take evasive action to avoid hitting my car as it slowed.”

NHTSA complaint #10325089, filed 2010-04, 62,800 miles

“Mazda sedan6 purchased 05/2007- current mileage 2800- discovered oil leak at engine rear main seal. Service mgr offered to correct problem. Oil leak not noticeable-oil dropping on under engine shield and coagulating. Low mileage might indicate problem existed at time of manufacture. If so, replacement of vehicle is proper action on part of manufacturer/seller.”

NHTSA complaint #10237396, filed 2008-08, 2,820 miles

“2007 MAZDA6 wagon with 1900 miles engine stalled while driving in gear and under load at approximately 3500 rpms, roughly one minute after startup. Gas tank was 3/4 full, weather was about 80f, 80% rh. With engine stopped car was brought to a stop with brakes, transmission put in park, and engine restarted immediately by switching ignition to engage starter motor.”

NHTSA complaint #10196613, filed 2007-07, 1,900 miles

“Interior component of engine failed, causing the engine to throw a rod at 66,000 miles. Not normal wear and tear, dealer & corporation are refusing to cover cost of repairs, nor are they willing to investigate an apparent manufacture error, or accept full responsibility.”

NHTSA complaint #10293473, filed 2009-11, 66,000 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 2007 Mazda MAZDA6

Air bags
95 complaints
Transmission and drivetrain
17 complaints
Electrical system
11 complaints
Engine
9 complaints
Steering
8 complaints
Exterior lighting
5 complaints
Body and structure
5 complaints
Suspension
4 complaints
Other or unknown
3 complaints
Seat belts
3 complaints
Equipment
2 complaints
Fuel system
2 complaints

← All problems reported for the 2007 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