1988 Mercedes-Benz 230 — MOT failures & pass rate
The 1988 Mercedes-Benz 230 passed 77.5% of its 324 recorded MOT tests. All cars of a similar age fail 20.9% of the time, so this is 1.6pp worse than the group it competes with. Failures cluster in lighting & signalling, brakes and suspension.
What the MOT record shows
Lighting & signalling dominates the failure mix at 13.0% of all tests — 4.0 points clear of brakes, so it is the first thing to check.
At component level the recurring items are component mounting prescribed areas, chassis condition and rigid brake pipes — component mounting prescribed areas alone was recorded 16 times.
A 150k+ example is materially riskier than a 30-60k one: 23.3% versus 27.8%.
Advisories point at the next bill rather than this one: suspension was flagged on 32.4% of tests without failing them.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 13.0% | 42 |
| 2 | Brakes | 8.9% | 29 |
| 3 | Suspension | 8.3% | 27 |
| 4 | Body, structure & corrosion | 8.3% | 27 |
| 5 | Visibility | 4.9% | 16 |
| 6 | Emissions & environmental | 4.6% | 15 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Component mounting prescribed areas | 16 |
| 2 | Chassis condition | 13 |
| 3 | Rigid brake pipes | 13 |
| 4 | Headlamp | 12 |
| 5 | Service brake performance | 12 |
| 6 | Headlamp aim | 12 |
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 | 32.4% | 105 |
| 2 | Brakes | 23.8% | 77 |
| 3 | Emissions & environmental | 22.2% | 72 |
| 4 | Body, structure & corrosion | 15.7% | 51 |
| 5 | Tyres | 14.8% | 48 |
| 6 | Other defects | 12.0% | 39 |
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 | 54 | 27.8% |
| 60-90k | 55 | 20.0% |
| 90-120k | 52 | 17.3% |
| 120-150k | 58 | 27.6% |
| 150k+ | 86 | 23.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 78 | 23.1% |
| 2022 | 67 | 20.9% |
| 2023 | 66 | 21.2% |
| 2024 | 56 | 25.0% |
| 2025 | 57 | 22.8% |
What to check before buying a 1988 230
On a 1988 230, lighting & signalling is what the MOT record says goes wrong most — it appeared in 13.0% of tests. Check these areas before you commit.
- Lighting & signalling (13.0% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (8.9% 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.
- Suspension (8.3% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
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 Mercedes-Benz 230s pass their MOT?
77.5% of the 324 1988 Mercedes-Benz 230 MOT tests in this dataset passed — a 22.5% fail rate.
What is the most common MOT failure on a 1988 Mercedes-Benz 230?
Lighting & signalling, recorded in 13.0% of tests, followed by brakes (8.9%).
Does the 1988 230 get worse with mileage?
Its MOT fail rate rises from 27.8% in the 30-60k band to 23.3% in the 150k+ band.
Methodology & source. Based on 324 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.