2005 Mazda MAZDA6 Engine Problems
- Complaints
- 4about this part
- Share
- 3%of 147 total for the year
- Median mileage
- 142,070miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2005 Mazda MAZDA6, 3% of the 147 complaints for this model year. Where a mileage was given, the median is 142,070 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 was driving home from work today. I was driving on a road not far from my home and going about 40 MPH. My foot was not on the gas but the car began to suddenly accelerate. It suddenly accelerated to over 50 MPH. I began to brake, but it felt like I was trying to brake at the same time someone was pressing hard on the gas pedal. I put the car in neutral and pressed the brake as hard as I could. It was a definite hard push on the brake -- as if I had lost power brakes. There were cars ahead of me stopped in the road because of an accident. I managed to stop -- but barely. …”
NHTSA complaint #10542187, filed 2013-09, 165,000 miles“The contact owns a 2005 Mazda 6. While driving various speeds, the vehicle stalled and the check engine warning indicator illuminated. The vehicle was diagnosed and repaired by an independent mechanic. The throttle body and accelerator pedal were repaired, but the failure continued. The manufacturer and dealer were not made aware of the failure. The failure mileage was 170,000.”
NHTSA complaint #11210727, filed 2019-05, 170,000 miles“The contact owns a 2005 Mazda MAZDA6. The contact stated that while the vehicle was being operated, a loud noise emitted from the engine. Upon inspection, the contact discovered oil under the engine and oil coming from the exhaust. The cause of the failure was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 110,000. The VIN was not available.”
NHTSA complaint #10819819, filed 2016-01, 110,000 miles“The contact owns a 2005 Mazda 6. The contact stated that the check engine warning indicator illuminated. The contact stated that the failure did not occur until it was repaired per NHTSA campaign number: 15v382000 (air bags). The vehicle was taken to an independent mechanic who diagnosed that the dealer had reset the sensor and the check engine indicator was turned off. The manufacturer was not notified. The failure mileage was approximately 119,141.”
NHTSA complaint #10972370, filed 2017-04, 119,141 milesRelated service bulletins
- 11032103Apr 21, 2026This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory…
- 10092584Aug 26, 2016There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This service bulletin is to inform…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 13 | 76% |
| 2019 | 1 | 17% |
| 2018 | 32 | 55% |
| 2017 | 4 | 7% |
| 2016 | 7 | 9% |
| 2015 | 4 | 7% |
| 2014 | 15 | 11% |
| 2012 | 2 | 2% |
| 2011 | 3 | 2% |
| 2010 | 4 | 2% |
| 2009 | 11 | 3% |
| 2008 | 2 | 2% |
| 2007 | 9 | 6% |
| 2006 | 10 | 6% |
| 2005 | 4 | 3% |
| 2004 | 7 | 4% |
| 2003 | 10 | 6% |
Other parts of the 2005 Mazda MAZDA6
76 complaintsTransmission and drivetrain
19 complaintsElectrical system
13 complaintsEngine cooling
11 complaintsExterior lighting
7 complaintsVehicle speed control
7 complaintsBrakes
6 complaintsOther or unknown
6 complaintsBody and structure
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaintsSuspension
4 complaintsTires
4 complaints
← All problems reported for the 2005 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