2009 Mazda CX-7 Fuel system Problems
- Complaints
- 3about this part
- Share
- 5%of 65 total for the year
- Median mileage
- 80,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the fuel system of the 2009 Mazda CX-7, 5% of the 65 complaints for this model year. Where a mileage was given, the median is 80,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I purchased a Mazda CX-7 2009 vehicle used in august 2014. Within 2 months of purchase noticed a fuel odor coming through the air vents. Problem did not go away. Told buy dealer is would cost $900 to fix and that the vehicle was leaking gas. They told me it was a safety issue and the vehicle should not be driven. I feel I should not pay for this defect.”
NHTSA complaint #10672352, filed 2015-01, 60,000 miles“While driving down the interstate, vehicle lost much of it's acceleration, and began making a loud whining noise. Pulled off the highway and investigated the noise. It was a loud whining that only occurred in neutral and park over 2500 RPM and with any acceleration while in gear. Also noted yellow foamy oil on the dipstick which was 4.5 quarts low being very close to time to get a change. Towed to the shop to discover that the vehicle is burning oil and the turbo had gone bad. Mechanic suspects that the turbo going bad is what was most likely burning oil and retaining water in the crankcase.”
NHTSA complaint #10691743, filed 2015-03, 100,000 miles“Apparently the design of the turbo and the engine creates hot spots in the engine, especially in the turbo. These hot spot create sludge build up which eventually effects the performance and reliability of the engine. Research on the internet shows this to be a problem for a considerable amount of owners of this vehicle. Mazda has refused to correct these problems under their warranty. Also lacking by Mazda, since it is apparently a major cause of large build-ups of sludge, is the necessity to idle the engine for three minutes prior to turning off. …”
NHTSA complaint #10494707, filed 2013-01Related service bulletins
- 10202695Oct 13, 2021Ethanol is becoming a common additive in gasoline. Gasoline containing ethanol is likely available at your local gasoline station. Typical blends of ethanol include E10 and E85…
- 10154879Mar 20, 2019In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS…
Fuel system: other model years
Other parts of the 2009 Mazda CX-7
20 complaintsAir bags
17 complaintsEngine
12 complaintsEngine cooling
8 complaintsSteering
5 complaintsExterior lighting
4 complaintsOther or unknown
4 complaintsTransmission and drivetrain
3 complaintsBrakes
2 complaintsElectrical system
2 complaintsEquipment
2 complaintsForward collision avoidance
1 complaints
← All problems reported for the 2009 Mazda CX-7
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology