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MOT History from tests of diesel MERCEDES BENZ B-CLASSs year 2020

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:94.45%
(The average a diesel MERCEDES BENZ B-CLASS year 2020 passes without issue)
Based on:2,487 MOT Tests
Most common failuresNo# failures
Windscreen wiper does not clear the windscreen effectively29
Headlamp aim out of alignment26
Registration plate issues11
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))6
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))6
Parking brake efficiency below requirements (1.4.2 (a) (i))4
Windscreen washer not working 2
Offside Front Service brake excessively fluctuating (1.2.1 (e))2
Nearside Front Headlamp insecure (4.1.1 (c))2
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Horn not working (7.7 (a))2
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))2
Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))2
Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))2
Nearside Front Coil spring fractured or broken (5.3.1 (b) (i))2
Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))2
Offside Rear Service brake excessively binding (1.2.1 (f))2
Offside Rear Outer Seat belt buckle not functioning as intended (7.1.2 (d))2
Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d))2
Offside Rear Parking brake inoperative on one side (1.4.1 (a))2
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))2
Offside Stop lamp(s) not working (4.3.1 (a) (ii))1
Offside Rear Road wheel fractured (5.2.2 (a))1
Front Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))1
Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))1
Nearside Rear Parking brake inoperative on one side (1.4.1 (a))1
Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))1
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Front Road wheel fixing missing stud missing replaced (5.2.1 (a) (i))1
Nearside Front Lower Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Front Road wheel fixing missing (5.2.1 (a) (i))1
Offside Front Road wheel fixing missing (5.2.1 (a) (i))1
Nearside Rear Seat belt not functioning as intended (7.1.2 (c))1
Offside Headlamp insecure (4.1.1 (c))1
Front Lower Undertray likely to become detached (6.2.1 (a) (ii))1
Nearside Side repeater not working (4.4.1 (a) (ii))1
Offside Front Road wheel fractured (5.2.2 (a))1
Front Lower Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction sun visor attachment (3.1 (a) (ii))1
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))1
Nearside Parking brake inoperative on one side (1.4.1 (a))1
Nearside Rear reflector missing (4.8.2 (a) (ii))1
Nearside Headlamp insecure (4.1.1 (c))1
Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i))1
Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Side repeater not working (4.4.1 (a) (ii))1
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))1
Nearside Front Suspension arm ball joint excessively worn N/S/F LOWER CONTROL ARM HAS PLAY (5.3.4 (a) (i))1
Horn not working HORN NOT WORKING (7.7 (a))1
Offside Front Position lamp not working (4.2.1 (a) (ii))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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