Engine Rattling And Whining Sounds problems of the 2010 Mazda CX-7

On 8/31/14 I noticed a rattling noise when I accelerated as well as a whining noise. The noise was intermittent and did not occur all the time, but was a distinct noise coming from underneath the vehicle. I had not had any check engine lights illuminated or any other warning lights. I brought my vehicle into my local Mazda dealership and they advised it was the turbo and in order access appropriately they would need to tear down the engine. After reading online there are numerous documented issues with turbos, vvt timing chains and engine issues with Mazda cx7. The shop called me back 2 days after I dropped it off and said I would need to replace the turbo & I need a new engine. They also stated since there was oil sludge present that I would be responsible for $9000 costs. I provided the dealership my oil change receipts including the last oil change that was done in June. My car was still within 3000 miles and was not due a oil change, however the owners manual stipulates recommended changes every 7000 miles!! the dealership advised that when I brought it in no oil was in the dipstick and because there was sludge Mazda is denying my powertrain warranty (which is still active) due to not maintaining the vehicle. This is absurd, I have maintained my vehicle and Mazda is using this as an excuse to not be responsible for a obvious defect in their vehicle!!! there are many documented instances about this same scenario happening with others all over the internet, this issue is a result of a defective turbo and not due to lack of maintenance. Mazda extended turbos and vvt timing chain issues to 7 years because of this same scenario for 2007-2010 Mazda cx7s but when I asked about ssp 86 im being told my vehicle does not qualify. I would like to know why Mazda can get away with not abiding to their warranty and request this be investigated. Thank you.

Tl - the contact owns a 2010 Mazda cx7. The contact stated that while driving approximately 35 mph, he heard a loud whining noise and was unable to accelerate the vehicle. The contact also stated that the turbo failed. The vehicle was taken to the dealer where it was diagnosed that the turbo needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The approximate failure and current mileage was 50,100. Mah.

I purchase the Mazda cx7 on March 20 2010. Within 3 weeks I notice a rattling noise from the engine when start up the car. I took it to 2 different local Mazda dealers over 8 times since purchase and they replaced 3 motor mount but the problem still exist. This year I took it to the dealer twice and they refused to fix it. They wouldn't even schedule an appointment to look at my car. My car is still under warranty. I took my car to 2 different certified mechanics and they both acknowledge that the rattling noise does exist. I need help fixing this problem. I read online and saw lots of complaint about this problem. Some were able to get it resolve but they wouldn't fix my issue.

Tl-the contact owns a 2010 Mazda cx7. The contact stated when the vehicle engine was started there was a rattling noise coming from under the hood. The vehicle was taken to the dealer at least ten times who replaced the motor mounts but the failure continued to recur. The manufacturer was notified who offered no assistance. The failure mileage was 1,000 and the current mileage was 27,000. Mw.