Audi A4 S Ln Black Ed 35tdi Mhev Sa MOT Pass Rate
Overall pass rate across all manufacture years, based on 1,183 real MOT test results. Failure rate: 9.9%.
Data from official DVSA MOT testing records
Audi A4 S Ln Black Ed 35tdi Mhev Sa MOT Reliability Overview
The Audi A4 S Ln Black Ed 35tdi Mhev Sa is a niche vehicle in the UK, with 1,183 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 90.1% and a failure rate of 9.9%, which is well above the UK average of approximately 37%.
Based on this data, the Audi A4 S Ln Black Ed 35tdi Mhev Sa earns a "Excellent" reliability rating. The average Audi A4 S Ln Black Ed 35tdi Mhev Sa presents for MOT with approximately 36,074 miles on the clock. Manufacture year matters: 2022 models achieve the highest pass rate at 94.3%, while 2020 models have the lowest at 82.8%. This 11.5 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Audi A4 S Ln Black Ed 35tdi Mhev Sa is Tyres, affecting 16.4% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Brakes at 1.9%. Noise, emissions and leaks rounds out the top three at 1.7%. 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
Best Year to Buy
📈 How Each Vintage Ages
Pass Rate by Manufacture Year
* 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 | Tyres | 16.4% | 194 |
| 2 | Brakes | 1.9% | 23 |
| 3 | Noise, Emissions And Leaks | 1.7% | 20 |
| 4 | Visibility | 1.4% | 16 |
| 5 | Non-component Advisories | 1.3% | 15 |
| 6 | Suspension | 1.1% | 13 |
| 7 | Identification Of The Vehicle | 0.8% | 9 |
| 8 | Lamps, Reflectors And Electrical Equipment | 0.7% | 8 |
| 9 | Seat Belts And Supplementary Restraint Systems | 0.5% | 6 |
Failures per 10,000 Miles
avg. 36,074 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 |
|---|---|---|---|
| Tyres | 4.55 | 16.4% | 194 |
| Brakes | 0.54 | 1.9% | 23 |
| Noise, emissions and leaks | 0.47 | 1.7% | 20 |
| Visibility | 0.37 | 1.4% | 16 |
| Non-component advisories | 0.35 | 1.3% | 15 |
| Suspension | 0.30 | 1.1% | 13 |
| Identification of the vehicle | 0.21 | 0.8% | 9 |
| Lamps & Electrical | 0.19 | 0.7% | 8 |
| Seat Belts | 0.14 | 0.5% | 6 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Audi A4 S Ln Black Ed 35tdi Mhev Sa has 36,074 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 A4 S Ln Black Ed 35tdi Mhev Sa has a mileage-adjusted failure rate of 2.74% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Audi A4 S Ln Black Ed 35tdi Mhev Sa MOT Data
The Audi A4 S Ln Black Ed 35tdi Mhev Sa is a niche vehicle in the UK, with 1,183 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 90.1% and a failure rate of 9.9%, which is well above the UK average of approximately 37%.
For Audi A4 S Ln Black Ed 35tdi Mhev Sa owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres 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 A4 S Ln Black Ed 35tdi Mhev Sa is likely to perform.
Tyres — 16.4% of failures
Tyres issues account for 16.4% of MOT failures on the Audi A4 S Ln Black Ed 35tdi Mhev Sa. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Brakes — 1.9% of failures
Brakes issues account for 1.9% of MOT failures on the Audi A4 S Ln Black Ed 35tdi Mhev Sa. 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).
Noise, emissions and leaks — 1.7% of failures
Noise, emissions and leaks issues account for 1.7% of MOT failures on the Audi A4 S Ln Black Ed 35tdi Mhev Sa. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Frequently Asked Questions
What is the MOT pass rate for the Audi A4 S Ln Black Ed 35tdi Mhev Sa?
Based on 1,183 MOT tests in our database, the Audi A4 S Ln Black Ed 35tdi Mhev Sa has an overall pass rate of 90.1% (9.9% fail rate).
What are the most common MOT failures on a Audi A4 S Ln Black Ed 35tdi Mhev Sa?
The top 3 reasons a Audi A4 S Ln Black Ed 35tdi Mhev Sa fails its MOT are: 1. Tyres (16.4%), 2. Brakes (1.9%), 3. Noise, emissions and leaks (1.7%). Check these areas before booking your MOT.
Is the Audi A4 S Ln Black Ed 35tdi Mhev Sa reliable?
With a 9.9% MOT failure rate, the A4 S Ln Black Ed 35tdi Mhev Sa is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Audi A4 S Ln Black Ed 35tdi Mhev Sa?
Based on failure data, focus on: Tyres (16.4%); Brakes (1.9%); Noise, emissions and leaks (1.7%). 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.