NHTSA Complaint #10551369 — 2008 MAZDA CX-7

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	10551369
Vehicle	2008 MAZDA CX-7
Component	ENGINE
Date of Incident	November 1, 2013
Date Filed	November 7, 2013
Mileage	36,400 miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MA

Consumer Description

SUDDEN LOSS OF POWER AS THE TURBO STOPPED WORKING. THE MAZDA DEALERSHIP CLAIMED THAT THE TURBO BROKE DUE TO SLUDGE IN THE ENGINE. THERE WAS A LOT OF SLUDGE IN THE ENGINE, HOWEVER, THE CAR WAS WELL MAINTAINED WITH REGULAR OIL CHANGES. IT SEEMS THAT THE MEDIAN ENGINE TEMPERATURE IS HOTTER THAN IS APPROPRIATE FOR THE SPECIFIED OIL IN THE OWNERS MANUAL. THIS RESULTS IN OIL BURNING AND STICKING TO THE INSIDE OF THE ENGINE. EVENTUALLY A PIECE OF "SLUDGE" WILL COME LOOSE AND CLOG THE OIL TUBE TO THE TURBO, RESULTING IN THE TURBO UNIT OVERHEATING AND BREAKING. MAZDA SEEMS TO BE AWARE OF THIS PROBLEM AS THEY WERE PRESSURED TO EXTEND THE WARRANTY ON THIS PART. HOWEVER, THE PROBLEM IS VERY SERIOUS AND THERE SHOULD BE A RECALL OF THE TURBO UNIT AND CLARIFICATION IN THE OWNER'S MANUAL. MAZDA HAS YET TO AGREE TO FIX THE TURBO AND "SLUDGE" IN MY ENGINE. THEY ARE STILL INSISTING THAT I DID NOT MAINTAIN THE VEHICLE WELL. FYI- I WAS A CAR DESIGNER WITH HONDA/ACURA FOR 4 YEARS WHO DESIGNED THE 2009 - 2012 MDX. I AM STATING THIS BECAUSE I KNOW SUV'S AND HOW TO MAINTAIN THEM VERY WELL. *TR

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