Report: Turbocharger May Fail
Mazda CX-7 Problem
Average Mileage: 54,506 mi (40,000 mi - 70,120 mi)
A lack of power may develop due to a failed turbocharger. Failed turbochargers will require replacement to restore engine power.
Visitor, 2007 Mazda CX-7, 60,234 mi
This is the second turbocharger that has failed in my 2007 CX 7. The dealership was quick to write off the initial failure due to inadequet maintenence, ie..."engine sludge." White smoke would pour from the tailpipes so I contacted my local Mazda dealer. They couldn't duplicate the problem and told me there was engine sludge build-up from improper oil changes, which I informed them was BS. I had them change the oil to full synthetic, at a cost of around $100 only to have the same problem within days of leaving the dealership. I contacted them again and they informed me to bring it back. Apparently, a different Mazda tech worked on the car from only a few weeks earlier. Guess what? His diagnosis was that "it is evident that the oil hadn't been changed in a long time, therefore the issue was once again improper maintenence." Needless to say the service rep didn't know what to say because we just had the oil changed, by them, only 3 weeks earlier. However, once again, they couldn't produce the "white smoke" I brought it in for. This time they changed the oil, without my knowledge, yet submitted a bill to me upon my arrival. I refused to pay it and told them to drain the new oil out and put the old, 3 week oil, back in. Obviously they couldn't do that and they waived the charge. Third times a charm, and within day......"white smoke!" When I took it back to them this time I didn't leave until the mysterious white smoke appeared. Finally, they admitted there was an issue with oil leakage into the turbo and they repaired it under warranty. 22,000 miles and 24 months later I got in the car to take my daughter to school only to have the car not accelerate, with a loud whinning noise. I knew immediately what the issue was! After doing a little online research there is no doubt this "new"...."second" turbocharger went bad! I have left 2 messages now for the Mazda service rep to call me back and I'm still waiting! I'm almost certain they will tell me again the problem is from my negligence due to engine sludge build-up! How can Mazda get away with this when the problem is so prevelent nationwide? I will update this post after I speak with them again.
Visitor, 2007 Mazda CX-7, 70,120 mi
I have the same issue. Mazda was very quick to say "Sludge". I had the vehicle at the dealer in December 2012, well under warranty, for repairing the timing change and cleaning the turbo tube. At that time, the dealer knew there was a problem with the turbo but didn't fix it. Now they say that the warranty is out and they want to charge me 150 to look to see if there is "Sludge" which we know they will find since this is their response for everything. Also, when I had the cx-7 in for a repair of the nav screen they failed to put the cd player back together properly. This is my 4th Mazda and also MY LAST!!!
Visitor, 2008 Mazda CX-7, 40,000 mi
Visitor, 2008 Mazda CX-7, 40,180 mi
Turbocharger failed, replaced.