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CarComplaints.com Notes: The only area of real concern for 2012 Mazda CX-9 owners is the brake booster.
In 2014, Mazda extended the warranty on the 2007-2013 CX-9 brake booster to 7 years / 90,000 miles. However this extended warranty has expired for most CX-9 owners, so buyer beware.
This Mazda CX-9 brake booster failure isn't terrible in terms of repair cost — it "only" costs $550 average to fix. However it is a safety issue when the brake booster fails as it increases stopping distance. Owners have reported having to stomp on the brake pedal, & crashes/injuries have been reported due to this CX-9 brake booster defect.
9.5
really awful- Typical Repair Cost:
- No data
- Average Mileage:
- 145,750 miles
- Total Complaints:
- 4 complaints
Most Common Solutions:
- replace water pump (2 reports)
- new engine (1 reports)
- not sure (1 reports)
engine problem
Helpful websites
- No one has added a helpful site for this 2012 CX-9 problem yet. Be the first!
A D V E R T I S E M E N T S
My complaint is the engineering of the engine. The water pump is in cased with the timing chain. When the water pump goes bad it leaks coolant and mixes with the oil in the timing chain casing. According to what I have found how much to repair it could cost up to $5000. This includes repairing the head gaskets plus parts. If the water pump was visible, the repair cost would be a few hundred dollars.
- njara, Yucaipa, US