Mercedes Motorhome MOT Failures
An analysis of 464 real DVSA MOT tests on the Mercedes Motorhome — what fails, how often, and how that compares to every other car on UK roads.
Where the Mercedes Motorhome fails its MOT
The single biggest MOT failure point on the Mercedes Motorhome is wheel bearings worn — this model is 27 times more likely to fail on this item than the average car on UK roads. That makes it a significant weak point for anyone buying or owning this model. Across 464 MOT tests, 11.8% of all Mercedes Motorhome tests recorded this as a failure.
Suspension failures typically mean worn bushes, drop links, or dampers. These affect handling and tyre wear. Budget £150–£400 per corner at an independent garage for full suspension overhaul.
Other notable weak points include suspension pin, bush or joint worn (15x the fleet average) and rear registration plate lamp or light source mi... (6.5x the fleet average). These ratios compare the Mercedes Motorhome's failure rate on each item against the national average for all cars tested — a ratio of 10x means this model fails ten times more often than a typical car.
The failures span 2 categories: Suspension, Lights & Electrics. If you're inspecting a Mercedes Motorhome before purchase, these are the areas to focus on — and if any have been flagged as advisories on a previous MOT, they're likely to become failures in the near future.
What to check before buying a Mercedes Motorhome
Based on the MOT failure data and known issues above, here's what to prioritise when inspecting a Mercedes Motorhome:
Suspension — check for wheel bearings worn, suspension pin, bush or joint worn. Lights & Electrics — check for rear registration plate lamp or light source mi....
Always check the car's full MOT history for patterns — recurring advisories often become failures within 12 months. Enter any reg into our free car check to see the complete picture.
Looking at a specific Mercedes Motorhome?
Enter the reg to see its full MOT history, mileage records, write-off status, and finance checks.
Mercedes Motorhome MOT FAQs
What are the most common MOT failures on a Mercedes Motorhome?
Based on 464 DVSA MOT tests, the most common failure is wheel bearings worn — at 27x the national fleet average. Other frequent failures include suspension pin, bush or joint worn and rear registration plate lamp or light source mi....
Is the Mercedes Motorhome reliable based on MOT data?
The Mercedes Motorhome has 3 categories where it fails more often than average. The main concern is wheel bearings worn. Always check a specific car's full history before buying.
What MOT failures should I expect at high mileage?
The most common high-mileage failures include wheel bearings worn, suspension pin, bush or joint worn, rear registration plate lamp or light source mi....
How do I check a Mercedes Motorhome's MOT history?
Enter the registration number into our free car check above. You'll see every MOT test result, advisories and failures, mileage readings, write-off status, and finance checks.
MOT failure data sourced from DVSA bulk test records via data.gov.uk. Ratios compare this model's failure rate against the national fleet average. Known issues sourced from manufacturer bulletins, specialist workshops, and verified owner reports.