Audi A6 2.5 Tdi Quattro Se Auto MOT Pass Rate
Overall pass rate across all manufacture years, based on 40 real MOT test results. Failure rate: 42.5%.
Data from official DVSA MOT testing records
Audi A6 2.5 Tdi Quattro Se Auto MOT Reliability Overview
The Audi A6 2.5 Tdi Quattro Se Auto is a rare vehicle in the UK, with 40 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 57.5% and a failure rate of 42.5%, which is slightly below the UK average of approximately 37%.
Based on this data, the Audi A6 2.5 Tdi Quattro Se Auto earns a "Below Average" reliability rating. The average Audi A6 2.5 Tdi Quattro Se Auto presents for MOT with approximately 103,920 miles on the clock.
The most common MOT failure for the Audi A6 2.5 Tdi Quattro Se Auto is Suspension, affecting 32.5% of all tests. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. The second most common issue is Brakes at 25.0%. Lamps, Reflectors and Electrical Equipment rounds out the top three at 22.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Suspension | 35.0% | 14 |
| 2 | Brakes | 27.5% | 11 |
| 3 | Lamps, Reflectors And Electrical Equipment | 27.5% | 11 |
| 4 | Tyres | 25.0% | 10 |
| 5 | Driver's View Of The Road | 2.5% | 1 |
| 6 | Exhaust, Fuel And Emissions | 2.5% | 1 |
| 7 | Seat Belts And Supplementary Restraint Systems | 2.5% | 1 |
Failures per 10,000 Miles
avg. 103,920 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Suspension | 3.37 | 35.0% | 14 |
| Brakes | 2.65 | 27.5% | 11 |
| Lamps & Electrical | 2.65 | 27.5% | 11 |
| Tyres | 2.41 | 25.0% | 10 |
| Visibility | 0.24 | 2.5% | 1 |
| Emissions & Exhaust | 0.24 | 2.5% | 1 |
| Seat Belts | 0.24 | 2.5% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Audi A6 2.5 Tdi Quattro Se Auto has 103,920 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Audi A6 2.5 Tdi Quattro Se Auto has a mileage-adjusted failure rate of 4.09% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Audi A6 2.5 Tdi Quattro Se Auto MOT Data
The Audi A6 2.5 Tdi Quattro Se Auto is a rare vehicle in the UK, with 40 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 57.5% and a failure rate of 42.5%, which is slightly below the UK average of approximately 37%.
For Audi A6 2.5 Tdi Quattro Se Auto owners, these results suggest average reliability — some preparation before MOT can improve pass chances. Focus your pre-MOT checks on suspension and brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific A6 2.5 Tdi Quattro Se Auto is likely to perform.
Suspension — 32.5% of failures
Suspension issues account for 32.5% of MOT failures on the Audi A6 2.5 Tdi Quattro Se Auto. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Brakes — 25.0% of failures
Brakes issues account for 25.0% of MOT failures on the Audi A6 2.5 Tdi Quattro Se Auto. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Lamps, Reflectors and Electrical Equipment — 22.5% of failures
Lamps, Reflectors and Electrical Equipment issues account for 22.5% of MOT failures on the Audi A6 2.5 Tdi Quattro Se Auto. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Frequently Asked Questions
What is the MOT pass rate for the Audi A6 2.5 Tdi Quattro Se Auto?
Based on 40 (based on limited data) MOT tests in our database, the Audi A6 2.5 Tdi Quattro Se Auto has an overall pass rate of 57.5% (42.5% fail rate).
What are the most common MOT failures on a Audi A6 2.5 Tdi Quattro Se Auto?
The top 3 reasons a Audi A6 2.5 Tdi Quattro Se Auto fails its MOT are: 1. Suspension (32.5%), 2. Brakes (25.0%), 3. Lamps, Reflectors and Electrical Equipment (22.5%). Check these areas before booking your MOT.
Is the Audi A6 2.5 Tdi Quattro Se Auto reliable?
With a 42.5% MOT failure rate, the A6 2.5 Tdi Quattro Se Auto is about average compared to the UK average of ~40%.
What should I check before an MOT on my Audi A6 2.5 Tdi Quattro Se Auto?
Based on failure data, focus on: Suspension (32.5%); Brakes (25.0%); Lamps, Reflectors and Electrical Equipment (22.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.