Mercedes-Benz Rclass MOT reliability

Mercedes-Benz Rclasss passed their MOT first time 72% of the time across 1,725 tests in 2025.

First-time pass rate

72%

MOTs analysed

1,725

Still licensed (GB)

–

Body type

Hatchback

Pass rate by year of first registration

Older cars fail more often, so compare a car with others of the same age. Years with very few MOTs can show extreme pass rates, even 0% or 100%, so give more weight to years with more tests.

In detail:

First registered

2010 diesel

184 MOTs

Passed first time 73%. Typical mileage 126,167 (most between 102,811 and 149,648).

2021: 69% → 2022: 69% → 2023: 72% → 2024: 65% → 2025: 73%

Most common failures

Joints: constant velocity boot split or insecure, no longer prevents the ingress of dirt (4.3%)
Condition: has a cut in excess of the requirements deep enough to reach the ply or cords (3.3%)
Rbt (sp): efficiency below requirements (2.7%)
Rigid brake pipes: excessively corroded (2.2%)
Position lamp: not working (2.2%)

2010 petrol

4 MOTs

These figures come from only 4 MOT tests. With so few cars, a single pass or fail changes the percentages a lot, so treat them as a rough guide rather than a true average.

Passed first time 75%. Typical mileage 55,906 (most between 38,135 and 76,211).

2021: 67% → 2022: 25% → 2023: 83% → 2024: 100% → 2025: 75%

Most common failures

Headlamp aim: too high (25.0%)

Where 2010 Rclasss fail

Lights & electrics

12.5%

Brakes

8.2%

Wheels & tyres

7.6%

Body, structure & corrosion

6.0%

Visibility & wipers

3.3%

Exhaust, emissions & leaks

2.7%

Suspension & axles

2.7%

Seat belts & other equipment

0.5%

Looking at a particular car?

See its own MOT history, mileage and red flags, compared with these figures. Free.

Based on 2025 initial MOT tests in DVSA's anonymised MOT dataset (cars and light vans). Contains public sector information licensed under the Open Government Licence v3.0. Model details: Vehicle data by VehiclesDB.