Mercedes Unknown (1999)
1999 Mercedes Unknown
CarHunch is tracking 7,477 1999 Mercedes Unknown vehicles on UK roads. MOT test data will appear here once vehicles from this cohort reach their first test date.
We have 7,477 1999 Mercedes Unknown vehicles on record but don't have enough MOT test data to show reliable statistics for this cohort.
What to check before buying a 1999 Mercedes Unknown
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 Unknown
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 (94%) | 7,029 | 0.6% | 0.01 |
| Petrol (6%) | 438 | 0.3% | 0 |
| Diesel (0%) | 7 | 52.4% | 1.14 |
| LPG (0%) | 2 | 0% | 0 |
| Other (0%) | 1 | 100% | 0 |
Mileage Distribution
Most 1999 Mercedes Unknown 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 1999 Mercedes Unknown vehicles fall between 100,703 and 378,056 miles.
1999 Mercedes Unknown — Still on the Road
Strong survival — 20 vehicles still getting MOTs in 2025, 100% of the peak.
Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2016–2025.
Most Common MOT Issues — 1999 Mercedes Unknown
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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13.3%
Service brake efficiency below requirements
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13.3%
Oil leak, but not excessive
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10.9%
Offside Rear Brake disc worn, pitted or scored, but not seriously weakened
-
10.9%
Windscreen damaged but not adversely affecting driver's view
-
10.3%
Exhaust has a minor leak of exhaust gases
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9.7%
Nearside Rear Brake disc worn, pitted or scored, but not seriously weakened
-
9.1%
Offside Front Brake pipe corroded, covered in grease or other material
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8.5%
Offside Track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt
Data covers a 3-year window centred on 1999. Counts include advisories and failures.
Found a specific Mercedes Unknown?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.