Mercedes-Benz motorhome MOT Pass Rate & Official DVSA Failure Statistics

Mercedes-Benz Motorhome MOT History and Failure Rates vs UK National Average

The Mercedes-Benz motorhome passed on its first attempt in 83.7%, and its overall record sits +4.6 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Mercedes-Benz motorhome in the 2023–2025 data: 5,524 tests across 21 model years (2000–2022). A test still carries exactly one pass or fail verdict.

Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.

Most Common Mercedes-Benz Motorhome MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Mercedes-Benz motorhome, the Lamps, reflectors and electrical equipment section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.

Shares are over the Mercedes-Benz motorhome's recorded defect strings, merged across its year pages.

Top Recorded Mercedes-Benz Motorhome DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Mercedes-Benz motorhome, each with how many of the model's 5,524 tests it was noted on.

• "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 168 Mercedes-Benz motorhome tests, 3.0% of the model's MOT record.
• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 148 Mercedes-Benz motorhome tests, 2.7% of the model's MOT record.
• "Rbt (sp) efficiency below requirements" (Major) — noted on about 117 Mercedes-Benz motorhome tests, 2.1% of the model's MOT record.
• "Wipers does not clear the windscreen effectively" (Rectified) — noted on about 73 Mercedes-Benz motorhome tests, 1.3% of the model's MOT record.
• "Rear fog lamp not working" (Major) — noted on about 67 Mercedes-Benz motorhome tests, 1.2% of the model's MOT record.
• "Outline marker lamp not working" (Major) — noted on about 61 Mercedes-Benz motorhome tests, 1.1% of the model's MOT record.

Best and Worst Mercedes-Benz Motorhome Model Years by Pass Rate

The strongest Mercedes-Benz motorhome model year on record is 2017 (95.0% across 278 tests), and the weakest is 2001 (75.4%). The gap between them is 19.6 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Newest model year first. Only years with at least 50 recorded tests are listed.

Pre-MOT Inspection Checklist for Mercedes-Benz Motorhome Owners

These checks follow this Mercedes-Benz motorhome's own most-recorded failure strings, starting with what a tester is most likely to flag on a Mercedes-Benz motorhome.

• the lights — “registration plate lamp(s) inoperative in the case of multiple lamps or light sources”

  Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.

• the windscreen — “windscreen damaged”

  Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.

• the wipers and washers — “wipers does not clear the windscreen effectively”

  Run the wipers with the screen wet: they should clear it in one sweep without smearing or juddering. Top the washer bottle up and check both jets hit the screen.

Derived from the DVSA failure strings testers recorded for the Mercedes-Benz motorhome. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Frequently Asked Questions: Mercedes-Benz Motorhome MOT & Reliability