Mercedes-Benz Cls 350 MOT Pass Rate
Overall pass rate across all manufacture years, based on 43 real MOT test results. Failure rate: 14.0%.
Data from official DVSA MOT testing records
Mercedes-Benz Cls 350 MOT Reliability Overview
The Mercedes-Benz Cls 350 is a rare vehicle in the UK, with 43 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 86.0% and a failure rate of 14.0%, which is well above the UK average of approximately 37%.
Based on this data, the Mercedes-Benz Cls 350 earns a "Excellent" reliability rating. The average Mercedes-Benz Cls 350 presents for MOT with approximately 67,659 miles on the clock.
The most common MOT failure for the Mercedes-Benz Cls 350 is Tyres, affecting 20.9% 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 Registration Plates and VIN at 2.3%. Identification of the vehicle rounds out the top three at 2.3%. 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
* 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 | 20.9% | 9 |
| 2 | Lamps, Reflectors And Electrical Equipment | 2.3% | 1 |
| 3 | Registration Plates And Vin | 2.3% | 1 |
| 4 | Identification Of The Vehicle | 2.3% | 1 |
Failures per 10,000 Miles
avg. 67,659 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 | 3.09 | 20.9% | 9 |
| Lamps & Electrical | 0.34 | 2.3% | 1 |
| Registration Plates and VIN | 0.34 | 2.3% | 1 |
| Identification of the vehicle | 0.34 | 2.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes-Benz Cls 350 has 67,659 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-Benz Cls 350 has a mileage-adjusted failure rate of 2.07% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes-Benz Cls 350 MOT Data
The Mercedes-Benz Cls 350 is a rare vehicle in the UK, with 43 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 86.0% and a failure rate of 14.0%, which is well above the UK average of approximately 37%.
For Mercedes-Benz Cls 350 owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and registration plates and vin 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 Cls 350 is likely to perform.
Tyres — 20.9% of failures
Tyres issues account for 20.9% of MOT failures on the Mercedes-Benz Cls 350. 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.
Registration Plates and VIN — 2.3% of failures
Registration Plates and VIN issues account for 2.3% of MOT failures on the Mercedes-Benz Cls 350. 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.
Identification of the vehicle — 2.3% of failures
Identification of the vehicle issues account for 2.3% of MOT failures on the Mercedes-Benz Cls 350. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.
Frequently Asked Questions
What is the MOT pass rate for the Mercedes-Benz Cls 350?
Based on 43 (based on limited data) MOT tests in our database, the Mercedes-Benz Cls 350 has an overall pass rate of 86.0% (14.0% fail rate).
What are the most common MOT failures on a Mercedes-Benz Cls 350?
The top 3 reasons a Mercedes-Benz Cls 350 fails its MOT are: 1. Tyres (20.9%), 2. Registration Plates and VIN (2.3%), 3. Identification of the vehicle (2.3%). Check these areas before booking your MOT.
Is the Mercedes-Benz Cls 350 reliable?
With a 14.0% MOT failure rate, the Cls 350 is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes-Benz Cls 350?
Based on failure data, focus on: Tyres (20.9%); Registration Plates and VIN (2.3%); Identification of the vehicle (2.3%). 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.