>

MOT History from tests of diesel MERCEDES BENZ UNKNOWNs year 2020

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

mot history
Pass percent:87.05%
(The average a diesel MERCEDES BENZ UNKNOWN year 2020 passes without issue)
Based on:278 MOT Tests
Most common failuresNo# failures
Brake pipe excessively corroded13
Windscreen wiper does not clear the windscreen effectively5
Headlamp aim out of alignment3
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))3
Parking brake efficiency below requirements (1.4.2 (a) (i))2
Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c))2
Nearside Front Direction indicator not working (4.4.1 (a) (ii))2
Offside Front Direction indicator not working (4.4.1 (a) (ii))2
Brake insecure Handbrake level insecure on mounting (1.1.21 (c))1
Nearside Front Outline marker lamp not working wiring problem (4.2.1 (a) (ii))1
Offside Rear Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front fog lamp not working (4.5.1 (a) (ii))1
Offside Front Brake hose excessively twisted (1.1.12 (b) (ii))1
Brake hose damaged1
Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f))1
Offside Front Service brake excessively binding (1.2.1 (f))1
Nearside Rear Service brake excessively binding (1.2.1 (f))1
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))1
Nearside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Rear Rear fog lamp not working (4.5.1 (a) (ii))1
Nearside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))1
Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Parking brake inoperative on one side (1.4.1 (a))1
Registration plate issues1
Parking brake lever has excessive movement indicating incorrect adjustment no reserve travel (1.1.6 (c))1
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))1
Nearside Front Service brake excessively fluctuating (1.2.1 (e))1
Offside Rear Lower Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Indicator switch inoperative (4.4.2 (a) (ii))1
Nearside Front Brake disc significantly and obviously worn inner face breaking up (1.1.14 (a) (i))1
Offside Front Brake disc significantly and obviously worn inner face breaking up (1.1.14 (a) (i))1
Windscreen in such a condition that visibility through swept area is seriously affected wipers parking incorrectly. (3.2 (c) (ii))1
Nearside Headlamp aim projected beam image is obviously incorrect kick off incorrect (4.1.2 (c))1
Offside Headlamp aim projected beam image is obviously incorrect kick off incorrect (4.1.2 (c))1
Offside Front Position lamp not working (4.2.1 (a) (ii))1
Nearside Rear Upper Position lamp showing white light to the rear (4.2.3 (a) (ii))1
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Windscreen in an unacceptable condition (3.2 (c) (i))1
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))1
Nearside Front Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen washer fitting split (3.5 (a))1
Offside Front Service brake excessively fluctuating (1.2.1 (e))1
Central Upper Stop lamp(s) not working (4.3.1 (a) (ii))1
Offside Rear Brake hose leaking on a hydraulic braking system (1.1.12 (c) (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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Find us on Facebook

© KnowYourCar™ 2019. All rights reserved
Except where otherwise noted, content on our MOT statistics pages are licensed under a Creative Commons Attribution 4.0 International license.
You are free to redistribute the material in any medium or format as long as credit is given to KnowYourCar

WARNING: We have placed hidden watermarks in our data. We will take action against our data being used outside of these terms.

MOT Data licensed under the Open Government Licence v3.0

By using our site you are agreeing to our terms and conditions
Terms & Conditions  Privacy Policy