1985 Mercedes 608d MOT Pass Rate
Pass rate for 608d models manufactured in 1985, based on 55 real MOT test results.
Data from official DVSA MOT testing records
1985 Mercedes 608d MOT Analysis
The 1985 Mercedes 608d has an MOT pass rate of 40.0% based on 55 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 253,186 miles on the odometer. With a 60.0% failure rate, the 1985 608d is rated as "Very Poor" for MOT reliability.
The leading cause of MOT failure for the 1985 Mercedes 608d is Brakes, responsible for 23.6% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs range from £150–400. Seat belts and supplementary restraint systems is the second most common issue at 10.9%. Body, chassis, structure follows at 9.1%.
Top failures specific to 1985 models only. The overall 608d page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Brakes | 23.6% | 13 |
| 2 | Seat Belts And Supplementary Restraint Systems | 10.9% | 6 |
| 3 | Body, Chassis, Structure | 9.1% | 5 |
| 4 | Lamps, Reflectors And Electrical Equipment | 9.1% | 5 |
| 5 | Noise, Emissions And Leaks | 5.5% | 3 |
| 6 | Steering | 3.6% | 2 |
| 7 | Tyres | 3.6% | 2 |
Failures per 10,000 Miles
avg. 253,186 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Brakes | 0.93 | 23.6% | 13 |
| Seat Belts | 0.43 | 10.9% | 6 |
| Body & Structure | 0.36 | 9.1% | 5 |
| Lamps & Electrical | 0.36 | 9.1% | 5 |
| Noise, emissions and leaks | 0.22 | 5.5% | 3 |
| Steering | 0.14 | 3.6% | 2 |
| Tyres | 0.14 | 3.6% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1985 Mercedes 608d has an MOT pass rate of 40.0% based on 55 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 253,186 miles on the odometer. With a 60.0% failure rate, the 1985 608d is rated as "Very Poor" for MOT reliability.
If you own or are considering buying a 1985 Mercedes 608d, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to brakes: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm). With an average mileage of 253,186 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Brakes — 23.6% of failures
Brakes issues account for 23.6% of MOT failures on 1985 Mercedes 608d models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Seat belts and supplementary restraint systems — 10.9% of failures
Seat belts and supplementary restraint systems issues account for 10.9% of MOT failures on 1985 Mercedes 608d models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Body, chassis, structure — 9.1% of failures
Body, chassis, structure issues account for 9.1% of MOT failures on 1985 Mercedes 608d models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.