Notes: The 2009 Mazda CX-7 appears to share the same engine & A/C defects as the two previous model years: VVT/timing chain failure, turbo failure, & the A/C compressor clutch seizing. The timing chain failure is especially bad with many cars requiring an engine replacement ($9,000+).

In 2011, Mazda began a "Special Service Program" that extended the warranty to 7 years/70,000 miles covering turbocharger oil leaks & excessive timing chain noise — an early sign of timing chain failure. However coverage under the program requires perfect documentation of all required maintenance with other stipulations. Buyer beware.


hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
59,500 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Mazda CX-7 drivetrain problems

drivetrain problem

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2009 Mazda CX-7 Owner Comments

problem #2

Jan 272014

CX-7 4-cyl

  • 61,993 miles


This Mazda Cx-7 has been driven by my disabled finance and used for in city driving it's whole life and one day a high pitched whining sound developed and the car was delivered to capitol Mazda for an inspection. Upon getting the results we were told that the car had not had regular servicing at the dealer. I agreed as I am an engineer and do most servicing of my families vehicles. They said I had not done the oil changes, but I had done them every 5,000 miles. Every vehicle I have ever owned had more than 200,000 mile on them when I sold them. The current Toyota truck I am driving has 205,000 and I have done all of the servicing myself. Mazda wants over $8,000 to repair it back to driving condition. This is an outrage. And it doesn't seem to fix the problem. Several forums about this particular vehicle issue show some owners have had more than one turbo installed and then the issue came back. Online I have found literally hundreds of stories just like mine. The turbo in the cx family of vehicles is an issue. Since Mazda doesn't want to take responsibility, the government may have to look into a fine and also a recall of all of these potentially dangerous vehicles on our roads.

- San Jose, CA, USA

problem #1

Feb 182013

CX-7 4-cyl

  • 57,007 miles
I was driving on a highway. I heard a high pitched squealing sound then smoke started blowing out of my car. I could not see, and the other drivers behind me lost visability too. In the middle of this blinding smoke, surrounded by huge trucks, I lost aceleration. My instrumentation panel did not have any warning lights on. I was driving blind. I pulled off the highway as quickly as possible, and had my car towed to a dealership. The dealership said my turbo blew out, (which I guess sucked all the oil out of the car) I need a vvt valve and the timing chain is stretched. On a car with 57,000 miles! in checking on line, I found this has been a problem with the Cx-7 for 6 years and they are no longer making this model. I see that Mazda deals with these problems by stating the owner did not maintain the car properly, when in actuality, there is a serious problem with the turbo system and how the oil cools it. There is also a problem with "sludge buildup". I believe Mazda has been successfully avoiding a recall. But these issues are a real safety concern. I am very lucky that there was no accident as a result of this incident. These issues can be dangerous. When everything blew on my car, no one could see the road.

- Conifer, CO, USA

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