MileageCurve What breaks, and at what mileage

Mazda Mazda3 2004–2009

1st generation (BK) · BK (Ford C1 / Mazda global C platform, shared with Ford Focus Mk2 and Volvo S40) · 1,364 complaints, 1,108 with mileage

Owners filed 1,364 complaints with NHTSA about the 2004–2009 Mazda Mazda3, and 1,108 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.

Failures are spread across the mileage range, with the middle half between 27,514 and 94,501 miles. The median is 55,325 miles.

The most-reported areas are the steering (22.6% of complaints, typically around 50,000 miles), the airbag system (10.6% of complaints, typically around 67,262 miles), the tyres (7.6% of complaints, typically around 40,000 miles).

3 recall campaigns cover this generation.

When failures happen

0–5k: 85 complaints (7.7%)0–5k5–10k: 26 complaints (2.3%)10–20k: 86 complaints (7.8%)10–20k20–30k: 99 complaints (8.9%)30–40k: 110 complaints (9.9%)30–40k40–50k: 88 complaints (7.9%)50–60k: 90 complaints (8.1%)50–60k60–70k: 63 complaints (5.7%)70–80k: 76 complaints (6.9%)70–80k80–90k: 81 complaints (7.3%)90–100k: 58 complaints (5.2%)90–100k100–120k: 92 complaints (8.3%)120–140k: 76 complaints (6.9%)120–140k140–160k: 32 complaints (2.9%)160–200k: 37 complaints (3.3%)160–200k200k+: 9 complaints (0.8%)1100

10% of failures occur by 9,650 miles · a quarter by 27,514 · median 55,325 · three quarters by 94,501 · 90% by 130,000. Based on 1,108 complaints that record mileage.

What fails, and when

SystemComplaintsShareTypical mileageMiddle half
Steering30822.6%50,00027,200–90,000
Air Bags14510.6%67,26228,000–110,000
Tires1047.6%40,00021,400–70,000
Power Train886.5%74,00031,000–101,231
Electrical System886.5%77,05042,679–120,000
Engine And Engine Cooling745.4%41,32022,000–65,000
Engine654.8%87,00068,000–118,000
Wheels634.6%58,00038,100–77,784
Service Brakes, Hydraulic554.0%15,5501,100–38,000
Suspension533.9%36,00020,000–92,000

By model year

YearComplaintsWith mileage
2004185143
2005127103
2006224171
2007301245
2008387330
2009140116

Which systems, and when

Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 55,325 miles; the figures below show which parts of the car run ahead of that and which run behind.

The steering accounts for 22.6% of complaints (308 reports, 276 of them with a mileage figure), with a median of 50,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 27,200 and 90,000 miles.

The airbag system accounts for 10.6% of complaints (145 reports, 112 of them with a mileage figure), with a median of 67,262 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 28,000 and 110,000 miles.

The tyres account for 7.6% of complaints (104 reports, 83 of them with a mileage figure), with a median of 40,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 21,400 and 70,000 miles.

The transmission and driveline accounts for 6.5% of complaints (88 reports, 70 of them with a mileage figure), with a median of 74,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 31,000 and 101,231 miles.

The electrical system accounts for 6.5% of complaints (88 reports, 69 of them with a mileage figure), with a median of 77,050 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 42,679 and 120,000 miles.

The engine and its cooling system accounts for 5.4% of complaints (74 reports, 62 of them with a mileage figure), with a median of 41,320 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 22,000 and 65,000 miles.

Differences between model years

Within this generation, complaint volume is not constant across model years. The 2008 model year drew the most — 387 complaints — while 2005 drew the fewest at 127. The median year sits at 204.

Recalls and what they cover

NHTSA records 3 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.

Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.

Reported severity

Of the 1,364 complaints filed against this generation, 169 reported a crash; 18 reported a fire; 140 reported an injury. Crash-involved reports represent 12.4% of the total.

These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.

What this means if you are buying one

For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 27,514 and 94,501 miles, with a median of 55,325. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.

On inspection, the steering and the airbag system are where this generation's reports concentrate, so those are the areas worth a specific look. The steering in particular shows a median failure mileage of 50,000, which gives a concrete number to compare against the odometer of any car you are considering.

None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.

Documented problems

Body / corrosion 2004-2009

Rear wheel arch and rocker panel rust perforation on salt-belt cars, often visible before 8 years of age — the defining durability complaint for this generation.

Electrical

Clock spring failure in the steering column causing airbag warning lights, inoperative horn and dead steering wheel controls.

Airbags

Takata inflator recalls cover a large share of this generation.

Recalls (3)

CampaignDateComponent
21V4940002021-08-28Air Bags:Frontal
11V3290002011-07-06Visibility:Windshield Wiper/Washer:Motor
10V3740002010-09-15Steering:Electric Power Assist System

What owners reported

2004 · 100 miles · Service Brakes, Hydraulic
1)4 DAYS AFTER BUYING THE CAR MY FRONT BRAKE ROTORS HAD 3 LARGE (1M WIDE MORE THAN .5MM DEEP) GROOVES AND THE REAR BRAKE ROTORS WERE STARTING TO DEVELOP THE SAME PROBLEM. THE PADS MUST HAVE SOME TYPE OF HARD METALIC PIECES IN THEM THAT GRADUALLY DESTROYS THE BRAKE ROTORS. 2)IT'S ONLY A MATTER OF TIME BEFORE THE PADS WEAR THE ROTORS TO AN UNSAVE LIMIT. SO, I RETURNED TO MY MAZDA DEALER FOR SERVI…
2004 · 100 miles · Service Brakes, Hydraulic
1)4 DAYS AFTER BUYING THE CAR MY FRONT BRAKE ROTORS HAD 3 LARGE (1M WIDE MORE THAN .5MM DEEP) GROOVES AND THE REAR BRAKE ROTORS WERE STARTING TO DEVELOP THE SAME PROBLEM. THE PADS MUST HAVE SOME TYPE OF HARD METALIC PIECES IN THEM THAT GRADUALLY DESTROYS THE BRAKE ROTORS. 2)IT'S ONLY A MATTER OF TIME BEFORE THE PADS WEAR THE ROTORS TO AN UNSAVE LIMIT. SO, I RETURNED TO MY MAZDA DEALER FOR SERVI…
2004 · 100 miles · Equipment
THE AIRCONDITIONER IN MY MAZDA 3 BARELY FUNCTIONS AT ALL. I HAD IT IN TO THE DEALER TWICE IN THE FIRST WEEK OF OWNERSHIP. THEY STATED IT WAS UP TO STANDARDS. WHEN I ASKED WHAT THE STANDARD WAS, THEY SAID IF IT COOLED AT ALL IT PASSED THE STANDARD. WITH THE AIR ON, THE CAR ACCELERATES VERY POORLY. WHEN THE GAS PEDAL IS DEPRESSED, YOU CAN FEEL SEVERAL STAGES OF JERKING AND POWER COMING ON AND OFF L…
2004 · 100 miles · Service Brakes, Hydraulic
EXCESSIVE BRAKE WEAR AND NOISE DAYS AFTER PURCHASING MY MAZDA3 I PLACED A CALL TO THE DEALERSHIP WHERE I PURCHASED IT. I STATED THAT THE VEHICLE'S BRAKING SYSTEM WAS CREATING AN EXCESSIVE AMOUNT OF NOISE AND BRAKE DUST FROM WEAR. I WAS TOLD THAT DURING THE FIRST WEEKS OF A NEW CAR THAT THIS WAS EXPECTED. THE GENTLEMAN REFERRED TO IT AS SEATING. HOWEVER, AFTER SEVERAL THOUSAND MILES, MOSTLY HIG…

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