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MOT History from tests of diesel MERCEDES BENZ 508s year 1986

Review the list of common MERCEDES BENZ 508 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:61.27%
(The average a diesel MERCEDES BENZ 508 year 1986 passes without issue)
Based on:142 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment10
Brakes imbalanced across an axle8
Offside Rear fog lamp not working |1.3.2b|6
Rear brake application uneven4
Windscreen washer not working 4
Registration plate lamp issues4
Windscreen wiper does not clear the windscreen effectively4
Emissions not tested |7.0|3
Front brake application uneven3
Offside Front Front position lamp|s| not working |1.1.A.3b|3
Service brake: efficiency below requirements |3.7.B.7|3
Exhaust has a major leak of exhaust gases |7.1.2|3
Nearside Front Anti-roll bar attachment bracket/mounting insecure |2.4.G.1|2
Nearside Stop lamp not working |1.2.1b|2
Offside Stop lamp not working |1.2.1b|2
Indicator switch faulty |1.4.A.1|2
Nearside Headlamp not working on dipped beam |1.7.5a|2
Brake hose excessively deteriorated2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Registration plate issues2
Parking brake: efficiency below requirements |3.7.B.7|2
Nearside Front Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|2
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Centre Exhaust has a major leak of exhaust gases |7.1.2|2
Nearside Windscreen wiper blade deteriorated |8.2.2|2
Offside Windscreen wiper blade deteriorated |8.2.2|2
Nearside Front wheel bearing rough when rotated |2.5.A.2|2
Brake pipe excessively corroded2
Direction indicators not working |1.4.A.2c|2
Brake load sensing valve linkage defective and function impaired |3.6.E.3|2
Nearside Rear Position lamp not working (4.2.1 (a) (ii))1
Nearside Rear Direction indicator not working upper & lower (4.4.1 (a) (ii))1
Headlamp aim projected beam image is obviously incorrect both kicker wrong way (4.1.2 (c))1
Offside Rear Rear fog lamp missing |1.3.2a|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
Nearside Headlamp aim so that beam "kick up" is not visible on the screen |1.8.B.1|1
Offside Headlamp aim beam image kick up to the offside |1.8|1
Headlamp aim aimed so that it dazzles other road users both |1.8.A.1a|1
Rear fog lamp has less than 50% of the light sources illuminating |1.3.2b|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Driver`s seat insecure |6.2.A.1|1
Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b|1
Rear fog lamp switch insecure |1.3.1a|1
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b|1
Rear fog lamp not working |4.5.1 |a| |ii||1
Windscreen wiper not working |3.4 |a||1
Brake load sensing valve seized and ABS not fitted or inoperative |1.1.17 |c| |ii||1
Offside Front Integral body structure or chassis has excessive corrosion to the extent that overall security or stability of the body is impaired |6.2.2 |d| |ii||1
Nearside Side repeater not working |1.4.A.2c|1
Nearside Indicator tell tale inoperative |1.4.A.2a|1
Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Exhaust has a part missing |7.1.1a|1
Nearside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Nearside Brake pipe inadequately clipped |3.6.B.1|1
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front Stub axle has excessive vertical movement between stub axle and axle beam |2.5.A.1a|1
Braking system leaking |3.6.A.1|1
Offside Rear Braking system leaking |3.6.A.1|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Direction indicators not working |1.4.A.2c|1
Nearside Rear Stop lamp not working |1.2.1b|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
Offside Rear fog lamp not working (4.5.1 (a) (ii))1
Nearside Rear reflector missing (4.8.2 (a) (ii))1
Offside Rear reflector missing (4.8.2 (a) (ii))1
Offside Side repeater not working (4.4.1 (a) (ii))1
Drivers seat fore and aft adjustment mechanism not functioning as intended. (6.2.5 (b) (i))1
Drivers seat insecure (6.2.5 (a) (ii))1
Offside Steering arm modified such that the steering is adversely affected loose to hub (2.1.3 (f) (ii))1
Offside Front Service brake lagging in operation (1.2.1 (d))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Nearside Front Front passenger door hinge deteriorated so the door cannot be readily opened or closed |6.2.B.2|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Offside Front Direction indicators not working |1.4.A.2c|1
Offside Rear Stop lamp not working |1.2.1b|1
Offside Rear Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Direction indicators not working connection |1.4.A.2c|1
Exhaust system not adequately supported |7.1.1|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 Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Centre Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Central Subframe mounting prescribed area is excessively corroded cross member between chassis |2.4.A.3|1
Fuel cap/sealing device missing new cap fitted |7.2.4a|1
Nearside Front Front position lamp|s| not working fuse |1.1.A.3b|1
Nearside Front Rear position lamp|s| not working fuse |1.1.A.3b|1
Nearside Front Headlamp aim projected beam image is obviously incorrect |4.1.2 |c||1
Offside Rear Rear fog lamp not working |4.5.1 |a| |ii||1
Rear fog lamp obviously incorrectly positioned |1.3.2a|1
Stop lamp not working Both |1.2.1b|1
Rear Hazard warning lamps inoperative |1.4.B.1b|1
Nearside Rear Direction indicator not working |1.4.A.2c|1
Offside Rear Direction indicator not working |1.4.A.2c|1
Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Hydraulic brake cylinder leaking hydraulic fluid Master cylinder "Corroded" |3.6.A.1|1
Ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt All X4 |2.2.C.1c|1
Nearside Front Position lamp not working (4.2.1 (a) (ii))1
Offside Front Position lamp not working (4.2.1 (a) (ii))1
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Offside Front Headlamp insecure inside lamp hi/low (4.1.1 (c))1
Nearside Front Service brake excessively fluctuating (1.2.1 (e))1
Offside Front Service brake excessively fluctuating (1.2.1 (e))1
Nearside Rear Service brake excessively fluctuating (1.2.1 (e))1
Offside Rear Service brake excessively fluctuating (1.2.1 (e))1
Rear fog lamp obviously incorrectly positioned (4.5.4 (a))1
Rear fog lamp not working (4.5.1 (a) (ii))1
Nearside Headlamp aim projected beam image is obviously incorrect kick up is to the right. (4.1.2 (c))1
Headlamp aim projected beam image is obviously incorrect Kick up is to the right. (4.1.2 (c))1
Fuel system component leaking Fuel leak in the area of fuel tank & associated piping. (6.1.3 (b) (i))1
Offside Rear fog lamp emits a light other than red |1.3.2e|1
Rear Brake load sensing valve linkage seized |3.6.E.3|1
Rear parking brake recording little or no effort1
Offside Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Front Brake pipe seriously damaged |found during steering lock to lock check| |2.2.D.2b|1
Nearside Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|1
Nearside Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Rear fog lamp tell tale not working |1.3.1b|1
Offside Front Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|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
Brake load sensing valve linkage obviously incorrectly adjusted |3.6.E.3|1
Nearside rear brake recording little or no effort |3.7.B.5a|1
Offside rear brake recording little or no effort |3.7.B.5a|1
Service brake is causing the vehicle to swerve to the nearside |3.7.C.2|1
Service brake: efficiency below requirements |3.7.C.1a|1
Offside Front Direction indicator not working |1.4.A.2c|1
Offside Rear fog lamp obscured more than 50% |1.3.2c|1
Indicator switch insecure |1.4.A.1|1
Offside Front wheel bearing rough when rotated |2.5.A.2|1
Nearside front brake juddering severely |3.7.A.2b|1
Offside front brake juddering severely |3.7.A.2b|1
Nearside rear brake juddering severely |3.7.A.5b|1
Offside rear brake juddering severely |3.7.A.5b|1
Offside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Front Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Offside Front Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Rear Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Statutory seat belt missing |5.1.1|1
Offside Front Statutory seat belt missing |5.1.1|1
Position lamp switch missing |1.1.A.1|1
Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b|1
Offside Front Front passenger door cannot be opened from outside the vehicle (6.2.3 (a))1
Offside Rear Rear fog lamp missing the 1 rear fog lamp which must be fitted to the centre or offside of vehicles first used on or after 1 April 1980 (4.5.1 (a) (ii))1
Offside Front Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i))1
Indicator tell tale inoperative |1.4.A.2a|1
Hazard warning tell tale not working correctly |1.4.B.1e|1
Rear Drag link end ball joint has excessive play |2.2.B.1f|1
Centre Exhaust system not adequately supported |7.1.1|1
Offside Headlamps matched pair are incorrectly positioned |1.7.3|1
Fuel tank leaking |7.2.3|1
Towbar component excessively corroded |6.6.1|1
Towbar support obviously of an inappropriate type |6.6.2|1
Nearside Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Body has a sharp edge caused by corrosion |6.1.C.1|1
Passenger`s seat insecure |6.2.A.1|1
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Nearside Front Front position lamp|s| insecure |1.1.A.3a|1
Centre Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Nearside Front Seat belt retracting mechanism defective |5.2.5b|1
Nearside Front Front passenger seat insecure |6.2.3|1
Nearside Front Position lamp not working |4.2.1 |a||1
Offside Front Position lamp not working |4.2.1 |a||1
Exhaust system insecure mounting broken |6.1.2 |a||1
Nearside Front Shock absorbers has a serious fluid leak1
Rear Body mounting fixings insecure crossmembers corroded at body mountings nearside and offside /2x crossmembers |6.2.2 |c| |i||1
Nearside Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i||1
Brake lever has insufficient reserve travel |1.1.2 |a||1
Seat belt affected by an insecure seat fixing passangers front |5.2.1b|1
Horn not working |1.6.2a|1
Offside Front Direction indicator not working |4.4.1 |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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