2011 Mercedes-Benz Cl 500 MOT Pass Rate
Pass rate for Cl 500 models manufactured in 2011, based on 301 real MOT test results.
Data from official DVSA MOT testing records
This page shows all Cl 500 cars tested in 2011. Want to see how cars built in 2011 hold up over time?
View 2011 Mercedes-Benz Cl 500 vintage page → (83.3% current pass rate)2011 Mercedes-Benz Cl 500 MOT Analysis
The 2011 Mercedes-Benz Cl 500 has an MOT pass rate of 80.7% based on 301 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 76,628 miles on the odometer. With a 19.3% failure rate, the 2011 Cl 500 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2011 Mercedes-Benz Cl 500 is Brakes, responsible for 8.6% of failures. 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 range from £150–400. Noise, emissions and leaks is the second most common issue at 5.0%. Suspension follows at 3.7%.
Top failures specific to 2011 models only. The overall Cl 500 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 | Brakes | 8.6% | 26 |
| 2 | Noise, Emissions And Leaks | 5.0% | 15 |
| 3 | Suspension | 3.7% | 11 |
| 4 | Tyres | 2.7% | 8 |
| 5 | Lamps, Reflectors And Electrical Equipment | 0.3% | 1 |
Failures per 10,000 Miles
avg. 76,628 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 |
|---|---|---|---|
| Brakes | 1.13 | 8.6% | 26 |
| Noise, emissions and leaks | 0.65 | 5.0% | 15 |
| Suspension | 0.48 | 3.7% | 11 |
| Tyres | 0.35 | 2.7% | 8 |
| Lamps & Electrical | 0.04 | 0.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2011 Mercedes-Benz Cl 500 has an MOT pass rate of 80.7% based on 301 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 76,628 miles on the odometer. With a 19.3% failure rate, the 2011 Cl 500 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2011 Mercedes-Benz Cl 500, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to brakes: 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). At 76,628 average miles, these vehicles are in the mid-range where component wear starts to become a factor.
Brakes — 8.6% of failures
Brakes issues account for 8.6% of MOT failures on 2011 Mercedes-Benz Cl 500 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).
Noise, emissions and leaks — 5.0% of failures
Noise, emissions and leaks issues account for 5.0% of MOT failures on 2011 Mercedes-Benz Cl 500 models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Suspension — 3.7% of failures
Suspension issues account for 3.7% of MOT failures on 2011 Mercedes-Benz Cl 500 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.