1989 Mercedes Unclassified MOT Pass Rate
Pass rate for Unclassified models manufactured in 1989, based on 1,000 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Unclassified cars tested in 1989. Want to see how cars built in 1989 hold up over time?
View 1989 Mercedes Unclassified vintage page → (73.1% current pass rate)1989 Mercedes Unclassified MOT Analysis
The 1989 Mercedes Unclassified has an MOT pass rate of 56.1% based on 1,000 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 162,422 miles on the odometer. With a 43.9% failure rate, the 1989 Unclassified is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 1989 Mercedes Unclassified is Body, chassis, structure, responsible for 3.9% of failures. 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 range from £100–500+. Suspension is the second most common issue at 2.6%. Lamps, reflectors and electrical equipment follows at 1.7%.
Top failures specific to 1989 models only. The overall Unclassified 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 | Body, Chassis, Structure | 3.9% | 39 |
| 2 | Suspension | 2.6% | 26 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.7% | 17 |
| 4 | Brakes | 1.5% | 15 |
| 5 | Steering | 1.4% | 14 |
| 6 | Seat Belts And Supplementary Restraint Systems | 1.4% | 14 |
| 7 | Identification Of The Vehicle | 0.9% | 9 |
| 8 | Noise, Emissions And Leaks | 0.7% | 7 |
| 9 | Tyres | 0.6% | 6 |
| 10 | Visibility | 0.4% | 4 |
| 11 | Other | 0.2% | 2 |
Failures per 10,000 Miles
avg. 162,422 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 |
|---|---|---|---|
| Body & Structure | 0.24 | 3.9% | 39 |
| Suspension | 0.16 | 2.6% | 26 |
| Lamps & Electrical | 0.10 | 1.7% | 17 |
| Brakes | 0.09 | 1.5% | 15 |
| Steering | 0.09 | 1.4% | 14 |
| Seat Belts | 0.09 | 1.4% | 14 |
| Identification of the vehicle | 0.06 | 0.9% | 9 |
| Noise, emissions and leaks | 0.04 | 0.7% | 7 |
| Tyres | 0.04 | 0.6% | 6 |
| Visibility | 0.02 | 0.4% | 4 |
| Other | 0.01 | 0.2% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1989 Mercedes Unclassified has an MOT pass rate of 56.1% based on 1,000 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 162,422 miles on the odometer. With a 43.9% failure rate, the 1989 Unclassified is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 1989 Mercedes Unclassified, budget for potential repairs before each MOT. Before your MOT, pay particular attention to body, chassis, structure: 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. With an average mileage of 162,422 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Body, chassis, structure — 3.9% of failures
Body, chassis, structure issues account for 3.9% of MOT failures on 1989 Mercedes Unclassified 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.
Suspension — 2.6% of failures
Suspension issues account for 2.6% of MOT failures on 1989 Mercedes Unclassified models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Lamps, reflectors and electrical equipment — 1.7% of failures
Lamps, reflectors and electrical equipment issues account for 1.7% of MOT failures on 1989 Mercedes Unclassified models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.