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2006 Mercedes Sl500 Auto MOT Pass Rate

Pass rate for Sl500 Auto models manufactured in 2006, based on 360 real MOT test results.

81.9%
Pass Rate
18.1%
Fail Rate
360
Total Tests
34,436
Avg Mileage

Data from official DVSA MOT testing records

This page shows all Sl500 Auto cars tested in 2006. Want to see how cars built in 2006 hold up over time?

View 2006 Mercedes Sl500 Auto vintage page → (85.4% current pass rate)

2006 Mercedes Sl500 Auto MOT Analysis

The 2006 Mercedes Sl500 Auto has an MOT pass rate of 81.9% based on 360 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 34,436 miles on the odometer. With a 18.1% failure rate, the 2006 Sl500 Auto is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 2006 Mercedes Sl500 Auto is Lamps, Reflectors and Electrical Equipment, responsible for 1.7% 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. Registration Plates and VIN is the second most common issue at 0.6%. Brakes follows at 0.6%.

Top failures specific to 2006 models only. The overall Sl500 Auto page may show different rankings.

What Fails Most

Registration Plates and VIN 0.6%
Brakes 0.6%

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Lamps, Reflectors And Electrical Equipment1.7%6
2Registration Plates And Vin0.6%2
3Brakes0.6%2
4Driver's View Of The Road0.6%2
5Tyres0.3%1

Failures per 10,000 Miles

avg. 34,436 mi

For 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.

Lamps & Electrical0.48% per 10K miRegistration Plates and VIN0.16% per 10K miBrakes0.16% per 10K miVisibility0.16% per 10K miTyres0.08% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Lamps & Electrical0.481.7%6
Registration Plates and VIN0.160.6%2
Brakes0.160.6%2
Visibility0.160.6%2
Tyres0.080.3%1

Mileage Statistics

34,436
Mean
20,164
Median
12,813
25th Percentile
34,229
75th Percentile
5.26% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 2006 Mercedes Sl500 Auto has an MOT pass rate of 81.9% based on 360 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 34,436 miles on the odometer. With a 18.1% failure rate, the 2006 Sl500 Auto is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 2006 Mercedes Sl500 Auto, you can expect reliable MOT performance overall. 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 relatively low average mileage of 34,436 miles, many of these vehicles are still in good mechanical condition.

Lamps, Reflectors and Electrical Equipment — 1.7% of failures

Lamps, Reflectors and Electrical Equipment issues account for 1.7% of MOT failures on 2006 Mercedes Sl500 Auto 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.

Registration Plates and VIN — 0.6% of failures

Registration Plates and VIN issues account for 0.6% of MOT failures on 2006 Mercedes Sl500 Auto models. Registration Plates and VIN 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.

Brakes — 0.6% of failures

Brakes issues account for 0.6% of MOT failures on 2006 Mercedes Sl500 Auto 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).

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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