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MOT History from tests of petrol MERCEDES BENZ C-CLASSs year 2020

Review the list of common MERCEDES BENZ C-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:93.58%
(The average a petrol MERCEDES BENZ C-CLASS year 2020 passes without issue)
Based on:4,457 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment61
Windscreen wiper does not clear the windscreen effectively36
Registration plate issues28
Nearside Front Road wheel fractured (5.2.2 (a))14
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))12
Offside Front Road wheel fractured (5.2.2 (a))9
Offside Rear Shock absorbers has a serious fluid leak8
Offside Front Shock absorbers has a serious fluid leak7
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))6
Windscreen washer not working 5
Nearside Rear Shock absorbers has a serious fluid leak5
Nearside Front Inner Road wheel fractured (5.2.2 (a))4
Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))4
Nearside Rear Road wheel fractured (5.2.2 (a))4
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))3
Brakes imbalanced across an axle3
Nearside Front Shock absorbers has a serious fluid leak3
Parking brake efficiency below requirements (1.4.2 (a) (i))3
Nearside Front Road wheel fixing missing (5.2.1 (a) (i))3
Electronic braking system warning device indicates a fault (1.7 (b))2
Exhaust catalytic converter missing where one was fitted as standard (8.2.1.1 (a))2
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a))2
Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))2
Nearside Front Coil spring fractured or broken (5.3.1 (b) (i))2
Nearside Rear Road wheel fixing missing (5.2.1 (a) (i))2
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Rear fog lamp missing (4.5.1 (a) (ii))1
Offside Rear fog lamp not working (4.5.1 (a) (ii))1
Rear fog lamp switch not operating in accordance with the requirements Tell- tale light not working (4.5.3 (a))1
Nearside Front Road wheel fixing missing bolt (5.2.1 (a) (i))1
Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Nearside Front Headlamp aim not tested (4.1.2 (b))1
Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b))1
Stop lamp(s) remains on when the brakes are released ALL (4.3.2 (a) (iii))1
Nearside Side repeater not working (4.4.1 (a) (ii))1
Offside Rear Seat belt webbing significantly weakened (7.1.2 (b) (ii))1
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))1
Offside Front Road wheel fractured x 2 (5.2.2 (a))1
Offside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Offside Front Daytime running lamp not working (4.2.1 (a) (ii))1
Nearside Front Road wheel has a welding defect (5.2.2 (a))1
Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))1
Exhaust carbon monoxide content at idle exceeds default limits (8.2.1.2 (b))1
Front Windscreen damaged and affecting the drivers view of the road Screen cracked and split (3.2 (a) (ii))1
Nearside Front Road wheel badly distorted (5.2.2 (c) (i))1
Brake performance unable to be tested (1.2.1 (g))1
Emissions unable to be completed inadequate fuel (8.2.1.2 (d))1
Offside Front Inner Road wheel fractured (5.2.2 (a))1
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt front arm (5.3.4 (b) (ii))1
Nearside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))1
Dipswitch does not operate immediately when selected on main beam (4.1.3 (b))1
Indicator switch inoperative (4.4.2 (a) (ii))1
Windscreen wiper not working (3.4 (a))1
Horn not working (7.7 (a))1
Electronic stability control warning lamp indicates a fault (7.12 (e))1
Nearside Front Inner Steering linkage ball joint has excessive play inner steering arm (2.1.3 (b) (i))1
Offside Front Inner Steering linkage ball joint has excessive play inner steering arm (2.1.3 (b) (i))1
Rear Service brake excessively fluctuating (1.2.1 (e))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Offside Rear Rear reflector missing or coved over (4.8.2 (a) (ii))1
Offside Front Outer Side repeater missing mirror indicator missing / mirror unit damaged (4.4.1 (a) (ii))1
Offside Front Outer Obligatory mirror does not provide a view to the rear glass heavily damaged (3.3 (c))1
Offside Front Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii))1
Front Inner Brake disc significantly and obviously worn Heavily corroded brake face / Brake fluctuation on brake test (1.1.14 (a) (i))1
Registration plate lamp issues1
Front brake disc in such a condition that it is seriously weakened1
Front Brake lining(s) less than 1.5 mm thick WORN THIN (1.1.13 (a) (ii))1
Seat belt buckle not functioning as intended Offside rear (7.1.2 (d))1
Nearside Rear Road wheel fixing missing one wheel bolt missing (5.2.1 (a) (i))1
Offside Rear Road wheel badly distorted cracked (5.2.2 (c) (i))1
Offside Front Headlamp insecure (4.1.1 (c))1
Offside Front Bumper damaged and likely to cause injury when grazed or contacted Bumper damaged and hanging off (6.1.4 (a) (i))1
Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Front Road wheel badly distorted catching on brake caliper (5.2.2 (c) (i))1
Nearside Front Windscreen wiper not working (3.4 (a))1
Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a))1
Nearside Front Road wheel fractured inner bead rim (5.2.2 (a))1
Nearside Rear Body panel damaged and likely to cause injury OUTER LAMP UNIT (6.2.1 (a) (i))1
Nearside Front Seat belt damaged (7.1.2 (b) (i))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Rear Inner Road wheel fractured (5.2.2 (a))1
Nearside Front Inner Road wheel badly distorted (5.2.2 (c) (i))1
Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Nearside Front Road wheel more than one fixing loose (5.2.1 (a) (ii))1
Offside Front Road wheel more than one fixing loose (5.2.1 (a) (ii))1
Offside Rear Road wheel more than one fixing loose (5.2.1 (a) (ii))1
Offside Front Steering arm deformed to the extent that steering is affected (2.1.3 (c) (ii))1
Offside Rear Road wheel badly distorted (5.2.2 (c) (i))1
Offside Rear Body component likely to become detached (6.2.1 (a) (ii))1
Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a))1
Nearside Front Direction indicator not working Mirror Indicator (4.4.1 (a) (ii))1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Front Seat belt buckle not functioning as intended (7.1.2 (d))1
Offside Front Inner Road wheel fractured Rim Cracked (5.2.2 (a))1
Nearside Front Road wheel fractured inner rim x2 fractures (5.2.2 (a))1
Offside Rear Road wheel fractured (5.2.2 (a))1
Offside Front Shock absorbers has negligible damping effect (5.3.2 (d))1
Central Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii))1
Offside Front Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Front Lower Suspension arm ball joint excessively worn Rear Arm (5.3.4 (a) (i))1
Rear Prop shaft flexible coupling excessively deteriorated (6.1.7 (d) (i))1
Nearside Front Service brake excessively fluctuating (1.2.1 (e))1
Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Nearside Front Service brake lagging in operation (1.2.1 (d))1
Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Front Road wheel fractured both front wheels cracked (5.2.2 (a))1
Nearside Front Suspension arm ball joint excessively worn spring control arm (5.3.4 (a) (i))1
Offside Front Outer Road wheel fractured (5.2.2 (a))1
Nearside Front Windscreen damaged and affecting the drivers view of the road (3.2 (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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