Skip to content
Transmission and drivetrainPart report

2007 Mazda MAZDASPEED6 Transmission and drivetrain Problems

Complaints
7about this part
Share
78%of 9 total for the year
Median mileage
51,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the transmission and drivetrain of the 2007 Mazda MAZDASPEED6, 78% of the 9 complaints for this model year. Where a mileage was given, the median is 51,000 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.

“Loud clunk in the drive train. Took it in and found the transfer case had leaked enough oil for large parts to be dislodged. Looked and found there was a TSB on the issue but was never notified. In searching the internet, I have found numerous people who have experienced the same issue. Mazda is aware of this issue but does not contact the owners of the car. The resulting repair is very expensive and, I feel there is a chance of transfer case lock up and possible loss of control.”

NHTSA complaint #10470031, filed 2012-08, 51,000 miles

“After starting to drive my car to the top of my street which was only 15 feet from my driveway, I hear a loud clunk from the rear of the car. After taking my car to the dealership the diagnosed the problem was a sheered rear differential front mount bolt. The problem is Mazda knows about this issue and have a reinforcement kit to fix it. This is a problem since it seems like it is a design flaw in the equipment and Mazda has failed to recall this product since no one has filed complaint or been in accident (thankfully) due to this issue.”

NHTSA complaint #10452299, filed 2012-03, 51,721 miles

“There is a rear clunk noise coming from the rear of the vehicle. This is starting to show up quite often around my 24,000 mile mark. After searching for others that have had this problem, it is common for the rear differential mounting bracket screws to back out, get sheered off, and have the mounting bracket break causing a failure in the rear differential thus making the vehicle not drivable.”

NHTSA complaint #10199303, filed 2007-08, 24,000 miles

“The contact owns a 2007 Mazda speed6. The contact stated that the firewall was starting to separate and the clutch became difficult to engage. The vehicle was taken to a dealer. The technician was unable to diagnose the failure. The manufacturer was made aware of the failure. The failure mileage was 90,000 and the current mileage was 91,000. Updated 9/12/14 the consumer stated the manufaturer denied assistance due to the vehicle being out of warranty. Updated 1/26/15”

NHTSA complaint #10605753, filed 2014-06, 90,000 miles

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
2007778%
2006630%

Other parts of the 2007 Mazda MAZDASPEED6

Air bags
1 complaints
Engine cooling
1 complaints
Suspension
1 complaints

← All problems reported for the 2007 Mazda MAZDASPEED6

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