1998 Audi S8 MOT Pass Rate
Pass rate for S8 models manufactured in 1998, based on 688 real MOT test results.
Data from official DVSA MOT testing records
This page shows all S8 cars tested in 1998. Want to see how cars built in 1998 hold up over time?
View 1998 Audi S8 vintage page → (48.1% current pass rate)1998 Audi S8 MOT Analysis
The 1998 Audi S8 has an MOT pass rate of 57.1% based on 688 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 128,726 miles on the odometer. With a 42.9% failure rate, the 1998 S8 is rated as "Below Average" for MOT reliability.
The leading cause of MOT failure for the 1998 Audi S8 is Lamps, reflectors and electrical equipment, responsible for 0.6% 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. Brakes is the second most common issue at 0.3%. Non-component advisories follows at 0.3%.
Top failures specific to 1998 models only. The overall S8 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 | 0.6% | 4 |
| 2 | Brakes | 0.3% | 2 |
| 3 | Non-component Advisories | 0.3% | 2 |
Failures per 10,000 Miles
avg. 128,726 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.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Lamps & Electrical | 0.05 | 0.6% | 4 |
| Brakes | 0.02 | 0.3% | 2 |
| Non-component advisories | 0.02 | 0.3% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1998 Audi S8 has an MOT pass rate of 57.1% based on 688 tests — slightly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 128,726 miles on the odometer. With a 42.9% failure rate, the 1998 S8 is rated as "Below Average" for MOT reliability.
If you own or are considering buying a 1998 Audi S8, 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 128,726 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Lamps, reflectors and electrical equipment — 0.6% of failures
Lamps, reflectors and electrical equipment issues account for 0.6% of MOT failures on 1998 Audi S8 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.
Brakes — 0.3% of failures
Brakes issues account for 0.3% of MOT failures on 1998 Audi S8 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).
Non-component advisories — 0.3% of failures
Non-component advisories issues account for 0.3% of MOT failures on 1998 Audi S8 models. Non-component advisories issues are a common cause of MOT failure. Regular inspection and maintenance of these components helps ensure your vehicle passes its MOT. Typical repair costs: £100–400. Pre-MOT check: Have this system checked during regular servicing. Look for warning signs like unusual noises, vibrations, or dashboard warning lights.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.