Common Mazda 6 Problems, Faults, and Repair Costs
Every known Mazda 6 MOT issue, ranked by how common it is and what it costs to fix. Based on 110,632 real MOT tests across 20 model years.
Segment: family car | Fuel: Petrol, Diesel
79%
Mazda 6 pass rate
81%
Mazda average
82%
National average
The Mazda 6 has an average MOT pass rate of 79%, which is 2 points below the Mazda average and 3 points below the national average. Newer MAZDA 6s show better MOT pass rates than older ones, with an average improvement of 18 percentage points.
Check Your Mazda 6's MOT History
Enter your reg plate to see the specific issues found on your car, plus a health score and running cost estimate.
Most Common Mazda 6 MOT Issues
Ranked by how likely they are to affect your Mazda 6, with typical repair costs
Brakes
High likelihood£80 - £450
Typical repair cost
Common advisories:
Brake discs worn, brake pads thin, handbrake adjustment needed
Failure points:
Brake disc excessively worn, brake pipe corroded, brake efficiency below minimum
Suspension
High likelihood£150 - £600
Typical repair cost
Common advisories:
Suspension arm bush worn, shock absorber misting, spring corroded
Failure points:
Coil spring broken, ball joint excessive play, shock absorber leaking
Lights
High likelihood£15 - £200
Typical repair cost
Common advisories:
Headlamp aim slightly out, lens deteriorated
Failure points:
Headlamp not working, brake light not functioning, indicator failure
Tyres
High likelihood£50 - £300
Typical repair cost
Common advisories:
Tyre approaching legal limit, slight damage to sidewall
Failure points:
Tyre below minimum tread depth, tyre has a cut exposing ply
Exhaust & Emissions
High likelihood£80 - £800
Typical repair cost
Common advisories:
Exhaust mounting corroded, slight exhaust leak
Failure points:
Exhaust emissions exceed limits, catalytic converter efficiency low, DPF warning
Steering
High likelihood£100 - £500
Typical repair cost
Common advisories:
Track rod end has slight play, steering rack boot deteriorated
Failure points:
Steering rack leaking, track rod ball joint worn beyond limits
Body & Structure
High likelihood£200 - £1200
Typical repair cost
Common advisories:
Surface corrosion on subframe, slight body panel damage
Failure points:
Structural corrosion, body mounting corroded through, chassis weakness
Windscreen & Wipers
Lower likelihood£10 - £350
Typical repair cost
Common advisories:
Minor windscreen chip, wiper blade deteriorated
Failure points:
Windscreen crack in swept area, wiper does not clear windscreen
Is your specific car affected?
Enter your reg plate to check your car's individual MOT history, health score, and flag any issues.
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Mazda 6 Reliability by Year
MOT pass rate for each model year, based on real test data
| Year | Fuel | Engine | Pass Rate | Fail Rate |
|---|---|---|---|---|
| 2021 | Petrol | 2.0L | 93% | 7% |
| 2020 | Petrol | 2.0L | 94% | 5% |
| 2019 | Petrol | 2.0L | 91% | 9% |
| 2018 | Petrol | 2.0L | 89% | 11% |
| 2017 | Petrol | 2.0L | 87% | 13% |
| 2016 | Petrol | 2.0L | 84% | 16% |
| 2015 | Petrol | 2.0L | 82% | 17% |
| 2014 | Petrol | 2.0L | 80% | 20% |
| 2013 | Petrol | 2.0L | 80% | 20% |
| 2012 | Petrol | 2.0L | 75% | 24% |
| 2011 | Petrol | 2.0L | 74% | 25% |
| 2010 | Diesel | 2.2L | 73% | 26% |
| 2009 | Petrol | 2.0L | 73% | 26% |
| 2008 | Diesel | 2.0L | 71% | 28% |
| 2007 | Petrol | 2.5L | 68% | 30% |
| 2006 | Diesel | 2.0L | 69% | 29% |
| 2005 | Diesel | 2.0L | 64% | 34% |
| 2004 | Petrol | 1.8L | 62% | 37% |
| 2003 | Petrol | 2.0L | 63% | 37% |
| 2002 | Petrol | 1.8L | 54% | 44% |
Mazda 6 Running Costs
Want to know the full annual running costs for the Mazda 6? Including fuel, tax, insurance, and predicted repairs based on MOT history.
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Mazda 6 FAQ
What are the most common Mazda 6 problems?
The most common Mazda 6 MOT problems are brakes, suspension, lights, tyres, exhaust & emissions, steering, body & structure issues. These are the areas most likely to cause advisories or failures during an MOT test, based on 110,632 real tests.
Is the Mazda 6 reliable?
The Mazda 6 has an average MOT pass rate of 79%, which is 3 points below the national average of 82%. This is about average reliability.
Which year Mazda 6 is most reliable?
The 2020 Mazda 6 is the most reliable year with a 94% MOT pass rate. Avoid the 2002 model year if reliability is your priority, as it has the lowest pass rate at 54%.
How much does it cost to fix common Mazda 6 faults?
Repair costs vary by issue. Brake work on a Mazda 6 typically costs £80-£450, suspension repairs cost £150-£600, and exhaust/emissions fixes cost £80-£800. Lighting and wiper fixes are usually under £200.
Check a Specific Mazda 6
Enter any reg plate to see the exact MOT history, defects found, health score, and running cost estimate for that specific car.
Other Mazda Models
Common problems pages for other Mazda models