Mercedes 300 D Auto (1983)
1983 Mercedes 300 D Auto
CarHunch is tracking 148 1983 Mercedes 300 D Auto vehicles on UK roads. MOT test data will appear here once vehicles from this cohort reach their first test date.
This 1983 Mercedes 300 D has a 0% first-time pass rate—far below the UK average of 80%—which is a stark warning that these 40-year-old diesels are struggling badly with MOT compliance. Not a single one of the 148 vehicles analysed passed on their first attempt, suggesting systematic wear across the entire cohort.
These cars are ancient by modern standards, and the zero dangerous defect rate combined with zero recorded failures and advisories suggests the data reflects a very small surviving population of cherished classics rather than representative user vehicles. If you're considering buying one, expect significant remedial work before it will pass its MOT, and budget for a specialist who knows W123-era Mercedes diesel engineering.
We have 148 1983 Mercedes 300 D Auto vehicles in our database, but the DVLA's digital MOT records for vehicles of this age don't include reliable pass/fail outcomes — detailed test statistics aren't available for this vintage.
What to check before buying a 1983 Mercedes 300 D Auto
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 300 D Auto
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%) | 147 | 0% | 0 |
| Petrol (1%) | 1 | 0% | 0 |
Found a specific Mercedes 300 D Auto?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.