Problem Reports

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.

failed turbocharger