Mercedes Cl 600 Auto MOT Pass Rate
Overall pass rate across all manufacture years, based on 65 real MOT test results. Failure rate: 4.6%.
Data from official DVSA MOT testing records
Mercedes Cl 600 Auto MOT Reliability Overview
The Mercedes Cl 600 Auto is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 95.4% and a failure rate of 4.6%, which is well above the UK average of approximately 37%.
Based on this data, the Mercedes Cl 600 Auto earns a "Excellent" reliability rating. The average Mercedes Cl 600 Auto presents for MOT with approximately 32,807 miles on the clock. The 2007 manufacture year performs best with a 95.2% pass rate.
The most common MOT failure for the Mercedes Cl 600 Auto is Tyres, affecting 3.1% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Suspension at 1.5%. Lamps, Reflectors and Electrical Equipment rounds out the top three at 1.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 3.1% | 2 |
| 2 | Suspension | 1.5% | 1 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.5% | 1 |
Failures per 10,000 Miles
avg. 32,807 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 |
|---|---|---|---|
| Tyres | 0.94 | 3.1% | 2 |
| Suspension | 0.47 | 1.5% | 1 |
| Lamps & Electrical | 0.47 | 1.5% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes Cl 600 Auto has 32,807 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Mercedes Cl 600 Auto has a mileage-adjusted failure rate of 1.40% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes Cl 600 Auto MOT Data
The Mercedes Cl 600 Auto is a rare vehicle in the UK, with 65 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 95.4% and a failure rate of 4.6%, which is well above the UK average of approximately 37%.
For Mercedes Cl 600 Auto owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and suspension for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Cl 600 Auto is likely to perform.
Tyres — 3.1% of failures
Tyres issues account for 3.1% of MOT failures on the Mercedes Cl 600 Auto. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Suspension — 1.5% of failures
Suspension issues account for 1.5% of MOT failures on the Mercedes Cl 600 Auto. 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 — 1.5% of failures
Lamps, Reflectors and Electrical Equipment issues account for 1.5% of MOT failures on the Mercedes Cl 600 Auto. 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.
Frequently Asked Questions
What is the MOT pass rate for the Mercedes Cl 600 Auto?
Based on 65 (based on limited data) MOT tests in our database, the Mercedes Cl 600 Auto has an overall pass rate of 95.4% (4.6% fail rate).
What are the most common MOT failures on a Mercedes Cl 600 Auto?
The top 3 reasons a Mercedes Cl 600 Auto fails its MOT are: 1. Tyres (3.1%), 2. Suspension (1.5%), 3. Lamps, Reflectors and Electrical Equipment (1.5%). Check these areas before booking your MOT.
Is the Mercedes Cl 600 Auto reliable?
With a 4.6% MOT failure rate, the Cl 600 Auto is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes Cl 600 Auto?
Based on failure data, focus on: Tyres (3.1%); Suspension (1.5%); Lamps, Reflectors and Electrical Equipment (1.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.