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MOT History from tests of diesel 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:92.31%
(The average a diesel MERCEDES BENZ B-CLASS year 2018 passes without issue)
Based on:4,175 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment94
Registration plate lamp issues67
Windscreen wiper does not clear the windscreen effectively64
Registration plate issues13
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))10
Nearside Side repeater not working (4.4.1 (a) (ii))6
Nearside Front Road wheel fractured (5.2.2 (a))5
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))4
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))3
Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))3
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))2
Offside Side repeater not working (4.4.1 (a) (ii))2
Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Offside Rear Road wheel badly distorted (5.2.2 (c) (i))1
Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f))1
Drivers view of the road through the swept area of the windscreen materially affected by an obstruction (3.1 (a) (ii))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
Offside Rear Coil spring fractured or broken broken (5.3.1 (b) (i))1
Offside Rear Road wheel fixing missing wheel bolt (5.2.1 (a) (i))1
Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))1
Nearside Front Body panel damaged and likely to cause injury Door mirror (6.2.1 (a) (i))1
Nearside Front Side repeater missing Door mirror repeater lamp missing (4.4.1 (a) (ii))1
Offside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Headlamp aim projected beam image is obviously incorrect bulbs/holders dislodged (4.1.2 (c))1
Nearside Front Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt Split open (5.3.4 (b) (ii))1
Nearside Rear fog lamp not working (4.5.1 (a) (ii))1
Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Front Service brake excessively fluctuating (1.2.1 (e))1
Oil leaking excessively from engine Dripping from inside under tray (8.4.1 (a) (i))1
Nearside Front Inner Road wheel fractured (5.2.2 (a))1
Rear Service brake excessively fluctuating both (1.2.1 (e))1
Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i))1
Nearside Front Side repeater not working (4.4.1 (a) (ii))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
Nearside Front Road wheel badly distorted (5.2.2 (c) (i))1
Front Windscreen damaged and affecting the drivers view of the road crack reaching into zone A (3.2 (a) (ii))1
Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Position lamp switch does not illuminate the front and rear position lamps with a single operation (4.2.2 (a))1
Position lamp switch does not operate in accordance with the requirements (4.2.2 (a))1
Rear fog lamp switch not operating in accordance with the requirements (4.5.3 (a))1
Headlamp levelling device inoperative (4.1.5 (a))1
Position lamp not working all (4.2.1 (a) (ii))1
Offside Front Road wheel fractured (5.2.2 (a))1
Offside Front Macpherson strut insecurely attached (5.3.3 (a) (i))1
Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))1
Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))1
Supplementary restraint system warning lamp indicates a fault Air bag (7.1.6 (a))1
Undertray likely to become detached clip/unfastened (6.2.1 (a) (ii))1
Brake pedal anti-slip provision missing (1.1.2 (c))1
Windscreen damaged and affecting the drivers view of the road crack in screen excess of 10mm in steering wheel view (3.2 (a) (ii))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 Road wheel fixing missing (5.2.1 (a) (i))1
Offside Rear Road wheel fixing missing (5.2.1 (a) (i))1
Nearside Front Headlamp lens seriously defective (4.1.1 (b) (ii))1
Front Bumper insecure (6.1.4 (a) (i))1
Offside Front Side repeater not working on mirror frame (4.4.1 (a) (ii))1
Front Undertray likely to become detached (6.2.1 (a) (ii))1
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt CV Gaiter inner clip adrift (6.1.7 (g) (ii))1
Offside Front Headlamp lens seriously defective (4.1.1 (b) (ii))1
Offside Rear All direction indicators incorrect colour BULB EMITTING WHITE LIGHT (4.4.3 (a))1
Windscreen washer not working 1
Nearside Front Road wheel more than one fixing loose (5.2.1 (a) (ii))1
Nearside Rear Other passenger door cannot be opened from outside the vehicle (6.2.3 (a))1
Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d))1
Emissions not tested (8.2.2.2 (e))1
Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Brake performance not tested (1.2.1 (g))1
Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Nearside Side repeater with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii))1
Front Fuel hose leaking on fuel filter (6.1.3 (b) (i))1
Front Lower Oil leaking excessively from engine oil on undertray (8.4.1 (a) (i))1
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Rear Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))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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