Mercedes Benz 250 (1990)
1990 Mercedes Benz 250
CarHunch analysed 238 real MOT records for the 1990 Mercedes Benz 250. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1990 Mercedes-Benz 250 diesel falls short of the UK average with a 73.8% first-time pass rate, meaning nearly one in four fail their MOT. While the 18.9% dangerous defect rate isn't catastrophic, it's a meaningful concern—nearly one in five of these cars show serious safety issues at some point.
These are genuinely old vehicles at 163,773 miles median, yet they're still averaging 2.06 failures and 9.3 advisories per test, reflecting the typical wear and corrosion problems that plague 30-year-old German saloons. If you're considering one, budget for regular repairs and have a pre-purchase inspection focus on rust, electrical gremlins, and brake condition—these older Mercedes demand respect.
What to check before buying a 1990 Mercedes Benz 250
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Mercedes Benz 250
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Diesel (99%) | 235 | 73.8% | 2.01 |
| Petrol (1%) | 3 | 76.3% | 5.67 |
Mileage Distribution
Most 1990 Mercedes Benz 250 vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1990 Mercedes Benz 250 vehicles fall between 124,648 and 211,559 miles.
1990 Mercedes Benz 250 — Still on the Road
Numbers are declining — 14 vehicles still getting MOTs in 2025 (30% of peak).
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
MOT History Averages
Most Common MOT Issues — 1990 Mercedes Benz 250
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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34.9%
Offside Rear Tyre worn close to the legal limit
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29.6%
Nearside Rear Tyre worn close to the legal limit
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26.4%
Offside Front Tyre worn close to the legal limit
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25.9%
Nearside Front Tyre worn close to the legal limit
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24.3%
Oil leak
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23.8%
Nearside Front Brake pipe slightly corroded
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22.4%
Offside Front Brake pipe slightly corroded
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22%
Parking brake: efficiency below requirements
Data covers a 3-year window centred on 1990. Counts include advisories and failures.
Found a specific Mercedes Benz 250?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.