2003 Mazda MAZDA6 Fuel system Problems
- Complaints
- 15about this part
- Share
- 9%of 174 total for the year
- Median mileage
- 84,450miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 15 complaints about the fuel system of the 2003 Mazda MAZDA6, 9% of the 174 complaints for this model year. Where a mileage was given, the median is 84,450 miles. 1 of these say a crash was involved, according to the filers. 1 recall campaign on record is filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I hit a deer at 45 miles an hour then hit the hit totalling the car, the airbag did not come out, the seat belt did not lock causing me to be slammed into the steeling wheel, now I suffer great pain, can't move my neck, can't lay down bc of such bad headache I throw up, I sleep sitting up, something in the car like metal fragment hit me in the left eye, now I can barely see out of my left eye. And must continue medical treatment. …”
NHTSA complaint #11252002, filed 2019-08, 11,800 miles“My car has had 4 recalls. I purchased the car in 2006 not knowing that parts had been recalled 3 times. I recently fixed a problem in my car that I feel make have had something to do with recall #3 , the fuel sender unit.”
NHTSA complaint #10256437, filed 2009-01, 86,900 miles“Car engine stopping while running and a no start. Service engine light warnings over a long time. One repair by Mazda on the gas cap repair, but I have also uncovered a recall on leaking seals at the tank on 2003 models, 03v-531. Service light again came on from 10/18/10 -10/30/10. While out of town the car sat airport parking on my return it stopped without warning at a light 11/22/10, but all lights and radio stations were active, so no battery problem. After adjusting the filler gas cap several times I found it wasn't closing and could be pulled right off. …”
NHTSA complaint #10384337, filed 2011-02, 112,000 miles“2003 Mazda 6 recall 1403l, campaign # 03v531000, on my vehicle supposedly was repaired in baton rouge at diamond Mazda in 2004, but car is leaking in the same area that was a problem to begin with now. So the workmanship where they repair the seal is not very good. Four years later I buy the car and it is poor gas on the top of my gas tank out of the seal around the fuel pump which just happens to be right under where my child sits. So I've been in a time bomb just waiting to go off. No one can give me proof or paper work of where this recall has been taken care of. …”
NHTSA complaint #10237320, filed 2008-08, 128,000 miles“I purchased my 2003 Mazda 6s in october 2003. Since I have owned the car I gets poor gas mileage on it (about 16-18 miles per gallon). I do plenty of city driving but I still feel that this is not adequate. Even when I drive on the highway the gas mileage averages poorly. There is also a smell coming from the exhaust when vehicle is in motion. The vehicle also rev's up higher before switching from lower gears to higher gears. I do not 'jack rabbit' start or stop the vehicle. There is also alot of brake dust on the rims of the front wheels. Acceleration is very poor. …”
NHTSA complaint #10060223, filed 2004-03, 300 milesRelated recalls
- 03V531000Dec 16, 2003On certain passenger vehicles, the fuel sender unit (fsu) may have been improperly installed in the fuel tank, producing an inadequate seal, and fuel may leak.Covers: Mazda MAZDA6 2003
Related 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…
- 10034005Oct 15, 2010Mazda: determining evaporative system leak location for dtcs p0441, p0442, p0455, p0455. Some vehicles may have a mil illumination with dtcs stored in memory. *pe updated 4/18/11.
- 10021213Feb 22, 2007Engine no start due to frozen main relay/fuel pump relay.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 1 | 6% |
| 2018 | 7 | 12% |
| 2017 | 2 | 3% |
| 2016 | 4 | 5% |
| 2015 | 4 | 7% |
| 2014 | 5 | 4% |
| 2013 | 1 | 4% |
| 2012 | 4 | 4% |
| 2011 | 4 | 3% |
| 2010 | 3 | 1% |
| 2009 | 11 | 3% |
| 2008 | 5 | 5% |
| 2007 | 2 | 1% |
| 2006 | 6 | 3% |
| 2005 | 1 | 1% |
| 2004 | 6 | 4% |
| 2003 | 15 | 9% |
Other parts of the 2003 Mazda MAZDA6
36 complaintsTransmission and drivetrain
36 complaintsAir bags
30 complaintsBrakes
24 complaintsElectrical system
18 complaintsVehicle speed control
18 complaintsBody and structure
11 complaintsEngine
10 complaintsSuspension
9 complaintsSteering
7 complaintsEquipment
4 complaintsOther or unknown
4 complaints
← All problems reported for the 2003 Mazda MAZDA6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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