Mercedes 320clk MOT Pass Rate
Overall pass rate across all manufacture years, based on 77 real MOT test results. Failure rate: 28.6%.
Data from official DVSA MOT testing records
Mercedes 320clk MOT Reliability Overview
The Mercedes 320clk is a rare vehicle in the UK, with 77 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 71.4% and a failure rate of 28.6%, which is above the UK average of approximately 37%.
Based on this data, the Mercedes 320clk earns a "Very Good" reliability rating. The average Mercedes 320clk presents for MOT with approximately 95,086 miles on the clock.
The most common MOT failure for the Mercedes 320clk is Suspension, affecting 22.1% of all tests. 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. The second most common issue is Brakes at 14.3%. Noise, emissions and leaks rounds out the top three at 10.4%. 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 | Suspension | 23.4% | 18 |
| 2 | Brakes | 15.6% | 12 |
| 3 | Tyres | 14.3% | 11 |
| 4 | Lamps, Reflectors And Electrical Equipment | 13.0% | 10 |
| 5 | Noise, Emissions And Leaks | 10.4% | 8 |
| 6 | Registration Plates And Vin | 6.5% | 5 |
| 7 | Exhaust, Fuel And Emissions | 6.5% | 5 |
| 8 | Visibility | 3.9% | 3 |
| 9 | Steering | 2.6% | 2 |
| 10 | Body, Chassis, Structure | 1.3% | 1 |
| 11 | Seat Belt Installation Check | 1.3% | 1 |
| 12 | Identification Of The Vehicle | 1.3% | 1 |
| 13 | Body, Structure And General Items | 1.3% | 1 |
| 14 | Non-component Advisories | 1.3% | 1 |
Failures per 10,000 Miles
avg. 95,086 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 |
|---|---|---|---|
| Suspension | 2.46 | 23.4% | 18 |
| Brakes | 1.64 | 15.6% | 12 |
| Tyres | 1.50 | 14.3% | 11 |
| Lamps & Electrical | 1.37 | 13.0% | 10 |
| Noise, emissions and leaks | 1.09 | 10.4% | 8 |
| Registration Plates and VIN | 0.68 | 6.5% | 5 |
| Emissions & Exhaust | 0.68 | 6.5% | 5 |
| Visibility | 0.41 | 3.9% | 3 |
| Body & Structure | 0.28 | 2.6% | 2 |
| Steering | 0.27 | 2.6% | 2 |
| Seat belt installation check | 0.14 | 1.3% | 1 |
| Identification of the vehicle | 0.14 | 1.3% | 1 |
| Non-component advisories | 0.14 | 1.3% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes 320clk has 95,086 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 320clk has a mileage-adjusted failure rate of 3.01% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes 320clk MOT Data
The Mercedes 320clk is a rare vehicle in the UK, with 77 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 71.4% and a failure rate of 28.6%, which is above the UK average of approximately 37%.
For Mercedes 320clk owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on suspension and brakes 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 320clk is likely to perform.
Suspension — 22.1% of failures
Suspension issues account for 22.1% of MOT failures on the Mercedes 320clk. 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.
Brakes — 14.3% of failures
Brakes issues account for 14.3% of MOT failures on the Mercedes 320clk. 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 — 10.4% of failures
Noise, emissions and leaks issues account for 10.4% of MOT failures on the Mercedes 320clk. 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.
Frequently Asked Questions
What is the MOT pass rate for the Mercedes 320clk?
Based on 77 (based on limited data) MOT tests in our database, the Mercedes 320clk has an overall pass rate of 71.4% (28.6% fail rate).
What are the most common MOT failures on a Mercedes 320clk?
The top 3 reasons a Mercedes 320clk fails its MOT are: 1. Suspension (22.1%), 2. Brakes (14.3%), 3. Noise, emissions and leaks (10.4%). Check these areas before booking your MOT.
Is the Mercedes 320clk reliable?
With a 28.6% MOT failure rate, the 320clk is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes 320clk?
Based on failure data, focus on: Suspension (22.1%); Brakes (14.3%); Noise, emissions and leaks (10.4%). 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.