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MOT History from tests of petrol MERCEDES BENZ B-CLASSs year 2018

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:94.43%
(The average a petrol MERCEDES BENZ B-CLASS year 2018 passes without issue)
Based on:3,965 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment68
Windscreen wiper does not clear the windscreen effectively42
Registration plate lamp issues39
Central Rear Seat belt not functioning as intended (7.1.2 (c))12
Registration plate issues10
Central Rear Seat belt retracting mechanism defective (7.1.2 (e))7
Nearside Front Road wheel fractured (5.2.2 (a))4
Windscreen washer not working 4
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))3
Nearside Rear Road wheel fixing missing (5.2.1 (a) (i))3
Front Brake disc significantly and obviously worn (1.1.14 (a) (i))2
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))2
Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d))2
Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))2
Nearside Side repeater not working (4.4.1 (a) (ii))2
Nearside Front Road wheel more than one fixing missing (5.2.1 (a) (ii))2
Nearside Rear Seat belt buckle not functioning as intended (7.1.2 (d))2
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Fuel cap/sealing device ineffective (6.1.3 (b) (i))2
Rear Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii))1
Nearside Rear Body component damaged and likely to cause injury outer light lens cracked and sharp edged (6.2.1 (a) (i))1
Nearside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Electronic braking system warning device indicates a fault (1.7 (b))1
Central Rear Seat belt not functioning as intended jammed (7.1.2 (c))1
Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii))1
Nearside Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Rear Seat belt buckle not functioning as intended button stuck down (7.1.2 (d))1
Central Rear Seat belt not functioning as intended Cannot be pulled out enough to use (7.1.2 (c))1
Front Service brake excessively fluctuating (1.2.1 (e))1
Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii))1
Front Windscreen wiper not working (3.4 (a))1
Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))1
Offside Front Lower Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Side repeater not working (4.4.1 (a) (ii))1
Central Rear Seat belt not functioning as intended LOCKED/ JAMMED (7.1.2 (c))1
Nearside Rear Seat belt buckle not functioning as intended buckle inop (7.1.2 (d))1
Nearside Rear Road wheel fractured (5.2.2 (a))1
Offside Front Inner Road wheel fractured (5.2.2 (a))1
Nearside Front Road wheel badly distorted (5.2.2 (c) (i))1
Offside Rear Position lamp lens seriously defective (4.2.1 (b))1
Offside Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))1
Brakes imbalanced across an axle1
Side repeater not working (4.4.1 (a) (ii))1
Windscreen in an unacceptable condition (3.2 (c) (i))1
Nearside Body component damaged and likely to cause injury mirror (6.2.1 (a) (i))1
Exhaust system insecure (6.1.2 (a))1
Central Rear Seat belt buckle not functioning as intended (7.1.2 (d))1
Nearside Rear Seat belt not functioning as intended (7.1.2 (c))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))1
Offside Rear Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Offside Front Steering locking device ineffective *Track Rod End Lock Nut Loose* (2.1.3 (d))1
Nearside Front Steering locking device ineffective *Track Rod End Lock Nut Loose* (2.1.3 (d))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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