1994 Lancia Delta — MOT failures & pass rate
The 1994 Lancia Delta passed 91.5% of its 331 recorded MOT tests. Against all cars of a similar age (23.6% fail rate), the 1994 Delta comes out 15.2pp better. Failures cluster in emissions & environmental, lighting & signalling and visibility.
What the MOT record shows
No single area dominates — emissions & environmental (7.0%) and lighting & signalling (6.7%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are catalyst emissions, headlamp aim and headlamp — catalyst emissions alone was recorded 29 times.
Condition tracks the odometer closely. Failures run at 6.6% in the 30-60k band and 18.5% in the 90-120k band, a 12.0-point spread — more than double.
The trend is worsening — 5.8% of tests failed in 2022 against 9.5% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Emissions & environmental | 7.0% | 23 |
| 2 | Lighting & signalling | 6.7% | 22 |
| 3 | Visibility | 2.1% | 7 |
| 4 | Body, structure & corrosion | 1.2% | 4 |
| 5 | Brakes | 0.9% | 3 |
| 6 | Suspension | 0.9% | 3 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Catalyst emissions | 29 |
| 2 | Headlamp aim | 14 |
| 3 | Headlamp | 10 |
| 4 | Washers | 6 |
| 5 | Catalytic converter | 5 |
| 6 | Stop lamp | 3 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Emissions & environmental | 7.2% | 24 |
| 2 | Suspension | 5.4% | 18 |
| 3 | Brakes | 4.2% | 14 |
| 4 | Body, structure & corrosion | 3.6% | 12 |
| 5 | Tyres | 3.6% | 12 |
| 6 | Lighting & signalling | 3.3% | 11 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 122 | 6.6% |
| 60-90k | 122 | 6.6% |
| 90-120k | 54 | 18.5% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2022 | 69 | 5.8% |
| 2023 | 79 | 10.1% |
| 2024 | 79 | 8.9% |
| 2025 | 84 | 9.5% |
What to check before buying a 1994 Delta
On a 1994 Delta, emissions & environmental is what the MOT record says goes wrong most — it appeared in 7.0% of tests. Check these areas before you commit.
- Emissions & environmental (7.0% of tests): More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair: £100–£600.
- Lighting & signalling (6.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Visibility (2.1% 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.
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 1994 Lancia Deltas pass their MOT?
91.5% of the 331 1994 Lancia Delta MOT tests in this dataset passed — a 8.5% fail rate.
What is the most common MOT failure on a 1994 Lancia Delta?
Emissions & environmental, recorded in 7.0% of tests, followed by lighting & signalling (6.7%).
Does the 1994 Delta get worse with mileage?
Its MOT fail rate rises from 6.6% in the 30-60k band to 18.5% in the 90-120k band.
Methodology & source. Based on 331 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.