2010 Mazda CX-9 engine problems
23 owner complaints filed with NHTSA name the engine on the 2010 Mazda CX-9 — 12% of all complaints for this model year.
What owners report
“The contact owns a 2010 Mazda CX-9. The contact stated while conducting a routine check, he noticed that the coolant and the oil levels were low. An independent mechanic diagnosed that the coolant was leaking into the engine. The vehicle was not repaired. An unknown dealer was contacted and…”
filed Dec 27, 2022
“The water pump failed and leaked coolant into the engine, causing motor damage which requires motor replacement. There was no evidence of any failure until the vehicle overheated while being driven. This is a known design flaw of the engine design but no recall has been issued.”
filed May 11, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other CX-9 years
| Year | Reports | Share |
|---|---|---|
| 2021 CX-9 | 19 | 53% |
| 2020 CX-9 | 5 | 26% |
| 2019 CX-9 | 22 | 42% |
| 2018 CX-9 | 73 | 58% |
| 2017 CX-9 | 43 | 70% |
| 2016 CX-9 | 64 | 62% |
| 2015 CX-9 | 17 | 49% |
| 2014 CX-9 | 19 | 35% |
| 2013 CX-9 | 17 | 25% |
| 2012 CX-9 | 25 | 11% |
| 2011 CX-9 | 15 | 9% |
| 2009 CX-9 | 4 | 7% |
Other reported problem areas on the 2010 Mazda CX-9
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.