CarComplaints.com Notes: The 2007 Mazda CX-7 has numerous reports filed with the NHTSA about engine & A/C problems.
Owners report problems with the 2007 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 2007 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.
A check engine light appeared on my 2007 Mazda Cx-7 of 131000 miles. Then it developed a fault such that shifting the gear from Park to Drive position would make a noise and shake the car. Then once you start the vehicle it moves right to the third gear (shown on the dash board) and will not change again.
I sent it three mechanic shops including a Mazda dealer. Technically, the diagnosis did not show that it was transmission, but because it was difficult to shift the gear they all recommended that l should change the transmission and knock sensor which I did. However, the problem still persist when you start the vehicle in the morning or the engine becomes cold. Once you drive it for couple of minutes and stop and restart the engine, it will work perfectly. And the cycle keeps on. The engine light is still on and l sent it to Transmission expert and they could not detect the problem. Another shop checked the transmission control board and there was nothing wrong with it. Who is out there to help me?
A D V E R T I S E M E N T S
A check engine light appeared on my 2007 Mazda Cx-7 of 131000 miles. Then it developed a fault such that shifting the gear from Park to Drive position would make a noise and shake the car. Then once you start the vehicle it moves right to the third gear (shown on the dash board) and will not change again.
I sent it three mechanic shops including a Mazda dealer. Technically, the diagnosis did not show that it was transmission, but because it was difficult to shift the gear they all recommended that l should change the transmission and knock sensor which I did. However, the problem still persist when you start the vehicle in the morning or the engine becomes cold. Once you drive it for couple of minutes and stop and restart the engine, it will work perfectly. And the cycle keeps on. The engine light is still on and l sent it to Transmission expert and they could not detect the problem. Another shop checked the transmission control board and there was nothing wrong with it. Who is out there to help me?
- papa, Worcester, MA, US