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MOT History from tests of petrol MERCEDES BENZ B-CLASSs year 2021

Review the list of common MERCEDES BENZ B-CLASS failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:93.75%
(The average a petrol MERCEDES BENZ B-CLASS year 2021 passes without issue)
Based on:1,200 MOT Tests
Most common failuresNo# failures
Windscreen wiper does not clear the windscreen effectively20
Headlamp aim out of alignment19
Registration plate issues8
Horn not working (7.7 (a))2
Nearside Headlamp insecure (4.1.1 (c))2
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))2
Parking brake efficiency below requirements (1.4.2 (a) (i))2
Offside Front Seat belt webbing significantly weakened (7.1.2 (b) (ii))1
Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d))1
Offside Front Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))1
Nearside Rear Outer Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Front Road wheel fixing missing wheel bolt missing(locking wheel nut) (5.2.1 (a) (i))1
Nearside Side repeater not working (4.4.1 (a) (ii))1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Side repeater not working (4.4.1 (a) (ii))1
Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b))1
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))1
Nearside Rear Seat belt buckle not functioning as intended (7.1.2 (d))1
Windscreen washer not working 1
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Front Suspension rod ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Headlamp aim projected beam image is obviously incorrect due to water in lamp (4.1.2 (c))1
Nearside Rear Body component insecure (6.2.1 (a) (i))1
Nearside Front Shock absorbers damaged to the extent that it does not function (5.3.2 (b))1
Central Front Upper Obligatory mirror insecure rear view mirror. (3.3 (b) (ii))1
Emissions unable to be completed (8.2.1.2 (d))1
Nearside Rear Parking brake inoperative on one side (1.4.1 (a))1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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