Notes: The 2008 Mazda CX-7 has numerous reports filed with the NHTSA about engine & A/C problems, continuing these defect trends from the 2007 model year.

Owners report problems with the 2008 CX-7's Variable Valve Timing (VVT) & timing chain failing, causing major damage to the engine — Mazda uses an interference design so typically the valves are bent & the entire engine needs to be replaced. Mazda dealers typically quote $9,000 for an engine replacement.

There is also a trend of the turbo failing at low mileage.

Finally for the 2008 CX-7 there is a clear pattern of A/C compressor failure at relatively low mileage. Owners report smoke & occasionally the serpentine belt catches fire when the A/C compressor clutch seizes while driving. Mazda extended the A/C warranty to 60,000 miles, however many owners report their A/C compressor failed very soon after the 60k mark.

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:
62,827 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.

2008 Mazda CX-7 fuel system problems

fuel system problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2008 Mazda CX-7:

Unsubscribe any time. We don't sell/share your email.

2008 Mazda CX-7 Owner Comments

problem #3

May 072014

CX-7 4-cyl

  • 81,981 miles


As I was driving my Mazda ( with a turbo engine) along the highway it began to decelerate on its own and making a loud knocking/grinding noise. It stopped on the road going up a hill with no turnouts. So it appears that the turbo blew up. It will start, but I cannot go anywhere. I have also had to replace gaskets on my oil filter housing unit, as the stock gaskets were faulty and causing a severe oil leak. Also, my emissions regulation ( egr) valve is bad and therefore will not pass smog. Each of these issues I am seeing more and more complaints about from other owners of the same vehicle. Mazda has made a horribly defective car and refuses to do anything about it except to claim owner negligence. I bought my car with 40K miles on it and it has been falling apart from the start. There is absolutely no excuse and this is not owner negligence, it is Mazda negligence and refusal to make anything right on their completely defective vehicles.

- Aguanga, CA, USA

problem #2

Apr 042014

CX-7 4-cyl

  • 47,500 miles
Egr valve failure on a 2008 Mazda Cx-7 with 47,500 miles. I had never heard of a egr valve before my check engine light came on and I took it to the local auto parts store to have them tell me the error code. Took it to the dealership and they told me that the warranty for the part was 60months/60,000 miles. While I was way under on the miles, I was 5 months over on the time. Since this was my 3rd trip into the dealership over the past 5 months dealing with problems/maintenance with my Cx-7, I asked why this particular part failed. I was told that it was due to the negative effects of ethanol. After some quick research, it is clear that 2007-2008 Mazda Cx-7 has serious problems with the egr valve. It will cost me $650 to fix. Mazda should have been forced to recall this part since it looks like it was defective from the start. Was told that a new replacement part for the egr valve would be put into the vehicle which will not break due to presence of ethanol in gas.

- Vero Beach, FL, USA

problem #1

May 142013

CX-7 4-cyl

  • 59,000 miles
Mazda got stuck and had no power the first time second time happened October 9,2013 car kept shutting off and finally could not move. Turbo once again twice in 5 months and I only had this pre-owned vehicle for 7 months.

- Deer Park, NY, USA

Search for these popular complaint phrases...

Not what you are looking for?