1988 Audi Quattro — MOT failures & pass rate
Across 397 MOT tests, the 1988 Audi Quattro recorded an 89.2% pass rate. All cars of a similar age fail 20.9% of the time, so this is 10.1pp better than the group it competes with. Failures cluster in lighting & signalling, brakes and emissions & environmental.
What the MOT record shows
Lighting & signalling dominates the failure mix at 7.8% of all tests — 3.8 points clear of brakes, so it is the first thing to check.
At component level the recurring items are headlamp aim, washers and non catalyst emissions — headlamp aim alone was recorded 18 times.
Mileage matters less than usual here: the 1988 Quattro fails 7.6% of the time in the 60-90k band and 11.5% at 150k+, a spread of only 4.0 points.
Advisories point at the next bill rather than this one: suspension was flagged on 15.1% of tests without failing them.
The trend is improving — the fail rate fell from 15.4% in 2021 to 9.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 7.8% | 31 |
| 2 | Brakes | 4.0% | 16 |
| 3 | Emissions & environmental | 3.5% | 14 |
| 4 | Visibility | 3.3% | 13 |
| 5 | Body, structure & corrosion | 2.8% | 11 |
| 6 | Suspension | 2.8% | 11 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 18 |
| 2 | Washers | 14 |
| 3 | Non catalyst emissions | 13 |
| 4 | Position lamp | 9 |
| 5 | Headlamp | 9 |
| 6 | Rear fog lamp | 5 |
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 | 15.1% | 60 |
| 2 | Brakes | 10.3% | 41 |
| 3 | Emissions & environmental | 6.6% | 26 |
| 4 | Body, structure & corrosion | 6.3% | 25 |
| 5 | Tyres | 6.3% | 25 |
| 6 | Lighting & signalling | 4.3% | 17 |
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 | 66 | 7.6% |
| 90-120k | 113 | 10.6% |
| 120-150k | 69 | 14.5% |
| 150k+ | 104 | 11.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 78 | 15.4% |
| 2022 | 89 | 12.4% |
| 2023 | 79 | 10.1% |
| 2024 | 74 | 6.8% |
| 2025 | 77 | 9.1% |
What to check before buying a 1988 Quattro
On a 1988 Quattro, lighting & signalling is what the MOT record says goes wrong most — it appeared in 7.8% of tests. Check these areas before you commit.
- Lighting & signalling (7.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (4.0% 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.
- Emissions & environmental (3.5% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
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 1988 Audi Quattros pass their MOT?
89.2% of the 397 1988 Audi Quattro MOT tests in this dataset passed — a 10.8% fail rate.
What is the most common MOT failure on a 1988 Audi Quattro?
Lighting & signalling, recorded in 7.8% of tests, followed by brakes (4.0%).
Does the 1988 Quattro get worse with mileage?
Its MOT fail rate rises from 7.6% in the 60-90k band to 11.5% in the 150k+ band.
Methodology & source. Based on 397 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.