1984 Mercedes 500 Sec MOT Pass Rate
Pass rate for 500 Sec models manufactured in 1984, based on 380 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 500 Sec cars tested in 1984. Want to see how cars built in 1984 hold up over time?
View 1984 Mercedes 500 Sec vintage page → (67.6% current pass rate)1984 Mercedes 500 Sec MOT Analysis
The 1984 Mercedes 500 Sec has an MOT pass rate of 58.9% based on 380 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 124,001 miles on the odometer. With a 41.1% failure rate, the 1984 500 Sec is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 1984 Mercedes 500 Sec is Lamps, reflectors and electrical equipment, responsible for 0.3% of failures. 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 range from £5–50.
Top failures specific to 1984 models only. The overall 500 Sec 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 | Lamps, Reflectors And Electrical Equipment | 0.3% | 1 |
Failures per 10,000 Miles
avg. 124,001 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 |
|---|---|---|---|
| Lamps & Electrical | 0.02 | 0.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1984 Mercedes 500 Sec has an MOT pass rate of 58.9% based on 380 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 124,001 miles on the odometer. With a 41.1% failure rate, the 1984 500 Sec is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 1984 Mercedes 500 Sec, budget for potential repairs before each MOT. Before your MOT, pay particular attention to lamps, reflectors and electrical equipment: 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. With an average mileage of 124,001 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Lamps, reflectors and electrical equipment — 0.3% of failures
Lamps, reflectors and electrical equipment issues account for 0.3% of MOT failures on 1984 Mercedes 500 Sec 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.