>

MOT History from tests of petrol MERCEDES BENZ 420s year 1978

Review the list of common MERCEDES BENZ 420 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:66.13%
(The average a petrol MERCEDES BENZ 420 year 1978 passes without issue)
Based on:62 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment5
Windscreen wiper does not clear the windscreen effectively4
Offside Stop lamp not working |1.2.1b|3
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Brake hose excessively deteriorated2
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Windscreen washer not working 2
Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Vehicle structure has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Service brake: efficiency below requirements |3.7.B.7|1
Offside Inner Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Inner Rear Body or chassis is damaged, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Offside Inner Track rod end loose |2.2.B.1d|1
Offside Outer Track rod end loose |2.2.B.1d|1
Offside Headlamp not working on dipped beam |1.7.5a|1
Offside Inner Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Headlamp not in a clean condition affecting beam image |1.2.4a|1
Nearside Front wheel bearing has excessive play |2.5.A.3c|1
Offside Front wheel bearing has excessive play |2.5.A.3c|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Lower Steering system fouling |2.2.D.2a|1
Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i||1
Central Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i||1
Nearside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting sill |6.2.2 |d| |i||1
Offside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting |6.2.2 |d| |i||1
Offside Rear Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting |6.2.2 |d| |i||1
Nearside Rear Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting |6.2.2 |d| |i||1
Nearside Rear Stop lamp|s| all not working |4.3.1 |a| |iii||1
Offside Rear Stop lamp|s| all not working |4.3.1 |a| |iii||1
Nearside Front All direction indicators not working |4.4.1 |a| |ii||1
Offside Front All direction indicators not working |4.4.1 |a| |ii||1
Central Rear All direction indicators not working |4.4.1 |a| |ii||1
Offside Rear All direction indicators not working |4.4.1 |a| |ii||1
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Parking brake lever pivot worn to the extent that the brake may inadvertently release |1.1.6 |b| |ii||1
Nearside Front Anti-roll bar pin or bush excessively worn |5.3.4 |a| |i||1
Central Exhaust system insecure rubbers missing |6.1.2 |a||1
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Exhaust system not adequately supported |7.1.1|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Rear Fuel pipe leaking |7.2.3|1
Brakes imbalanced across an axle1
Nearside Front Windscreen washer control is inaccessible to the driver |8.2.1a|1
Offside Front Windscreen washer control is inaccessible to the driver |8.2.1a|1
Brake hose damaged1
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Power steering pipe|s| or hose|s| leaking |2.3.3b|1
Nearside Rear Lower Vehicle structure has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Brake pipe excessively corroded1
Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|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