1990 Audi Quattro — MOT failures & pass rate
294 MOT tests on the 1990 Audi Quattro are in this dataset, and 92.9% of them passed. Against all cars of a similar age (21.8% fail rate), the 1990 Quattro comes out 14.6pp better. Failures cluster in lighting & signalling, visibility and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (3.7%) and visibility (3.4%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are washers, position lamp and headlamp aim — washers alone was recorded 8 times.
Mileage is the strongest signal on the record: 2.2% of 60-90k cars fail, rising to 12.5% once past 150k — 5.8× the risk.
Suspension is the most common advisory, noted on 14.0% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 6.6% in 2021 to 3.5% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 3.7% | 11 |
| 2 | Visibility | 3.4% | 10 |
| 3 | Brakes | 2.7% | 8 |
| 4 | Suspension | 1.7% | 5 |
| 5 | Body, structure & corrosion | 1.7% | 5 |
| 6 | Seat belts & restraints | 0.7% | 2 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Washers | 8 |
| 2 | Position lamp | 8 |
| 3 | Headlamp aim | 6 |
| 4 | Pins and bushes | 5 |
| 5 | Brake discs | 5 |
| 6 | Wipers | 4 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Suspension | 14.0% | 41 |
| 2 | Brakes | 8.2% | 24 |
| 3 | Emissions & environmental | 7.8% | 23 |
| 4 | Tyres | 5.4% | 16 |
| 5 | Body, structure & corrosion | 3.7% | 11 |
| 6 | Lighting & signalling | 3.4% | 10 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 60-90k | 46 | 2.2% |
| 90-120k | 98 | 7.1% |
| 120-150k | 50 | 4.0% |
| 150k+ | 56 | 12.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 61 | 6.6% |
| 2022 | 61 | 8.2% |
| 2023 | 56 | 8.9% |
| 2024 | 58 | 8.6% |
| 2025 | 58 | 3.5% |
What to check before buying a 1990 Quattro
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 3.7% of tests. Start there.
- Lighting & signalling (3.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (3.4% of tests): Wipers, washers, mirrors and screen damage — usually inexpensive, but check for chips in the driver's line of sight. Typical repair: £15–£150.
- Brakes (2.7% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 1990 Audi Quattros pass their MOT?
92.9% of the 294 1990 Audi Quattro MOT tests in this dataset passed — a 7.1% fail rate.
What is the most common MOT failure on a 1990 Audi Quattro?
Lighting & signalling, recorded in 3.7% of tests, followed by visibility (3.4%).
Does the 1990 Quattro get worse with mileage?
Its MOT fail rate rises from 2.2% in the 60-90k band to 12.5% in the 150k+ band.
Methodology & source. Based on 294 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.