Mercedes-Benz MOT pass rates by model

How many Mercedes-Benz cars are still on the road?

At the end of 2025, DVLA's register held 2,000,210 Mercedes-Benz cars that were taxed or on SORN: 1,781,087 taxed and 219,123 on SORN (Statutory Off Road Notification — kept, but declared off the road by the keeper), so 89.0% of them were taxed. DVLA lists 116 named Mercedes-Benz car models, counted across the whole United Kingdom. A further 8,928 taxed Mercedes-Benz cars are on the register with no model name recorded; they are in the totals here and under no model below. DVLA records the make as MERCEDES and MERCEDES-BENZ; all are counted. These are counts of cars, not tests, and cars only: vans, pickups and motorhomes are recorded as goods vehicles or motor caravans in the licensing data and are not in these figures, whereas the MOT figures above include Mercedes-Benz's car-derived vans and pickups. The model table below carries the count for each model DVLA records under a name of its own.

How Mercedes-Benz cars age

First-time pass rate by vehicle age, Mercedes-Benz vs all cars, 2025.

Better or worse than the average car?

Mercedes-Benz's pass rate minus the all-cars pass rate at each age, in percentage points. Bars above zero: Mercedes-Benz beats the average car of that age. Below zero: it trails.

The Mercedes-Benz fleet on the road, by age

How many Mercedes-Benz cars of each age took a first MOT in 2025 — the shape of the Mercedes-Benz fleet still in use.

What a Mercedes-Benz fails on

Where the failure items land when a Mercedes-Benz fails or needs a fix at test, 2025. Every make has a signature — this is Mercedes-Benz's.

Share of all failure items, 2025 — the 8 biggest categories shown (95.4% of the items); smaller categories are not listed.

The advisories to watch

Where testers most often write "keep an eye on this" on a Mercedes-Benz, 2025 — the faults in the post.

Petrol, diesel or hybrid Mercedes-Benz?

First-time pass rate for the five most-tested fuel types, 2025, against the all-cars average. Fleet ages differ by fuel — newer fleets help the electrified bars.

What mileage is normal for a Mercedes-Benz?

Mileage recorded at test by vehicle age, all Mercedes-Benz class-4 vehicles, 2025. The line is the typical (median) Mercedes-Benz; the shaded band holds the middle half. A car far outside the band, in either direction, is worth questions the recorded history can answer.

Every Mercedes-Benz model in the data

First-time pass rate per model, 2025. Every model with at least 2,000 tests is listed — all 32 of them, ordered by number of tests; models with 5,000+ tests link to their own page. All trims and variants are grouped under one model name; models marked (van) or (car and van) are tested in the same class-4 MOT. Pass rates are unadjusted for age: models with older fleets sit lower. The last three columns are the number of that model on DVLA's register at the end of 2025 — taxed, on SORN, and the taxed share — from the licensing statistics rather than the MOT record. They are left blank for vans, pickups and car-and-van models, which the licensing data counts as goods vehicles rather than cars, and for models DVLA does not record under a name of their own. DVLA's model groupings do not always draw the line where the MOT grouping does; each model page says what its count covers.

Mercedes-Benz models ranked by pass rate

All 21 grouped Mercedes-Benz car models with 5,000 or more first tests in 2025, highest first-time pass rate first — the full field at that floor. Only models sold purely as cars are ranked; van and pickup models appear in the table above but are not ranked among cars. Pass rates are unadjusted for fleet age — a model whose fleet runs older sits lower for that reason alone. Neighbouring rows can be effectively level, and models sharing a published rate share a rank.