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MOT History from tests of diesel MERCEDES BENZ 508s year 1984

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:64.10%
(The average a diesel MERCEDES BENZ 508 year 1984 passes without issue)
Based on:195 MOT Tests
Most common failuresNo# failures
Brakes imbalanced across an axle26
Registration plate lamp issues15
Headlamp aim out of alignment12
Front brake application uneven8
Windscreen wiper does not clear the windscreen effectively8
Parking brake: efficiency below requirements |3.7.B.7|7
Service brake: efficiency below requirements |3.7.B.7|5
Offside Rear fog lamp not working |1.3.2b|5
Rear brake application uneven5
Rear parking brake recording little or no effort5
Brake pipe excessively corroded4
Rear brake binding4
Offside Headlamp not working on dipped beam |1.7.5a|3
Nearside rear brake recording little or no effort |3.7.B.5a|3
Rear fog lamp not working |1.3.2b|3
Offside Rear Rear fog lamp not working |1.3.2b|3
Offside Front position lamp|s| not working |1.1.A.3b|3
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|3
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|3
Registration plate issues3
Nearside Front position lamp|s| not working |1.1.A.3b|3
Offside Stop lamp not working |1.2.1b|3
Horn not working |1.6.2a|3
Offside rear brake recording little or no effort |3.7.B.5a|2
Offside front brake binding |3.7.B.1|2
Brake hose excessively deteriorated2
Offside Side repeater not working |1.4.A.2c|2
Stop lamp remains on when the brakes are released2
Front Windscreen wiper not operating automatically when switched on |8.2.1b|2
Windscreen washer not working 2
Nearside front brake binding |3.7.B.1|2
Centre Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` |8.3.1b|2
Nearside Front Body has a sharp edge caused by corrosion |6.1.C.1|2
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|2
Exhaust has a major leak of exhaust gases |7.1.2|2
Nearside Passenger`s seat insecure |6.2.A.1|2
Offside Front Headlamp not working on dipped beam |1.7.5a|2
Rear Exhaust has a major leak of exhaust gases |7.1.2|2
Rear Exhaust system not adequately supported |7.1.1|2
Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|2
Offside Front Body has a sharp edge caused by corrosion |6.1.C.1|2
Rear Mechanical brake component has restricted free movement2
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Nearside Front Shock absorber has a serious fluid leak |2.7.3|2
Bonnet cannot be secured in the closed position |8.4.1|2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|2
Nearside Headlamp not working on dipped beam |1.7.5a|2
Nearside Front Headlamp not working on dipped beam |1.7.5a|2
Offside Rear fog lamp missing |1.3.2a|2
Front Drag link end ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.2.C.1c|2
Front Direction indicator not working |1.4.A.2c|2
Offside Front Upper Brake actuating linkage mounting prescribed area is excessively corroded |3.3.A.2|1
Nearside Front Body has a sharp edge caused by damage |6.1.C.1|1
Offside Rear Braking system leaking |3.6.A.1|1
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Offside Front Wheel nut|s| missing |4.2.A.1e|1
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b|1
Service brake: efficiency below requirements |3.7.C.1a|1
Nearside Front Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Nearside Front Passenger`s seat insecure |6.2.A.1|1
Nearside Rear Leaf spring has excessive side play at eye |anchor| |2.4.B.4|1
Offside Rear Leaf spring has excessive side play at eye |anchor| |2.4.B.4|1
Direction indicators not working |1.4.A.2c|1
Offside Rear Leaf spring anchor bracket loose |2.4.B.6a|1
Nearside Front Front suspension has excessive play in a pin or bush of a lower wishbone inner bearing |2.5.B.1a|1
Offside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Nearside Rear reflector missing (1.5.1a)1
Offside Rear reflector missing (1.5.1a)1
Rear Body has a sharp edge caused by corrosion (6.1.C.1)1
Offside Rear fog lamp not working (1.3.2b)1
Exhaust system not adequately supported (7.1.1)1
Offside Rear Brake pipe kinked (3.6.B.2b)1
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt (2.2.C.1c)1
Nearside Front Body has a sharp edge caused by corrosion (6.1.C.1)1
Centre Front Body has a sharp edge caused by corrosion (6.1.C.1)1
Nearside Rear Body has a sharp edge caused by corrosion (6.1.C.1)1
Offside Front Body has a sharp edge caused by corrosion (6.1.C.1)1
Centre 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 pedal creeps down while the pedal is held under pressure (3.3.B.1a)1
Service brake: efficiency below requirements (3.7.B.7)1
Parking brake: efficiency below requirements (3.7.B.7)1
Brake load sensing valve linkage seized (3.6.E.3)1
Offside Rear Drive shaft uj which forms part of the suspension has a missing flange bolt (2.4.G.4c)1
Centre Rear Exhaust system not adequately supported |7.1.1|1
Offside Front Obligatory mirror insecure |8.1.1|1
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Offside Front Shock absorber insecure |2.7.2b|1
Nearside Side repeater not working |1.4.A.2c|1
Nearside Front Lower Leaf spring has excessive wear in an anchor pin and/or bush |2.4.B.2|1
Nearside Front Inner Seat belt anchorage prescribed area strength or continuity significantly reduced door step X2 (7.1.1 (a) (i))1
Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values 1.10 (8.2.2.2 (f))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Front passenger door cannot be opened from outside the vehicle (6.2.3 (a))1
Windscreen wiper not working (3.4 (a))1
Offside Front Window damaged and affecting the drivers view of an obligatory external mirror (3.2 (a) (ii))1
Brake load sensing valve seized and ABS not fitted or inoperative (1.1.17 (c) (ii))1
front brakes release unevenly |3.7.B.4|1
Brake pedal has insufficient reserve movement |3.3.A.5|1
Nearside Rear position lamp|s| not working |1.1.A.3b|1
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Offside Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Windscreen has damage1
Offside Front Direction indicator incorrect colour |1.4.A.2f|1
Battery insecure |1.9.1|1
Nearside Obligatory mirror seriously deteriorated, affecting the rear view |8.1.2a|1
Offside Upper Stop lamp not working |1.2.1b|1
Rear fog lamp switch faulty |1.3.1a|1
Emissions not tested |7.0|1
Nearside Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Offside Rear fog lamp insecure |1.3.2a|1
Exhaust emits excessive dense blue smoke during acceleration |7.4.A2|1
Offside Lower Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Rear Body insecure and dangerous to other road users |6.1.B.1b|1
Brake hose damaged1
Rear Brake load sensing valve linkage seized |3.6.E.3|1
Rear Brake load sensing valve linkage defective and function impaired |3.6.E.3|1
Nearside Parking brake inoperative on one side |1.4.1 |a||1
Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c||1
Offside Headlamp not working on dipped beam |4.1.1 |a| |ii||1
Nearside Stop lamp|s| not working |4.3.1 |a| |ii||1
Offside Stop lamp|s| not working |4.3.1 |a| |ii||1
Offside Front Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced step |6.1.1 |c| |i||1
Nearside Rear Drive shaft securing bolt loose bolts missing |6.1.7 |a| |i||1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Nearside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Offside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Front passenger seat insecure |6.2.3|1
rear brakes release unevenly |3.7.B.4|1
Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Nearside Rear Body or chassis has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Driver`s seat insecure |6.2.A.1|1
Offside Front Drag link end ball joint has excessive play |2.2.B.1f|1
Windscreen wiper not operating automatically when switched on |8.2.1b|1
Brake pivot has restricted free movement brake pedal |3.5.1k|1
Driver`s seat cannot be secured in the upright position. |6.2.A.2|1
Rear fog lamp tell tale not working |1.3.1b|1
Hazard warning tell tale not working correctly |1.4.B.1e|1
Windscreen wiper blade deteriorated |8.2.2|1
Obligatory mirror insecure |8.1.1|1
Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Brake pedal anti-slip provision worn smooth |3.3.A.1b|1
Offside Front front brake grabbing severely |3.7.A.2b|1
Offside Rear rear brake grabbing severely |3.7.A.5b|1
Nearside Headlamp not working on main beam |1.7.5a|1
Offside Front Axle beam has excessive vertical movement between stub axle and axle beam |2.5.A.1a|1
Brake pedal fouling on other parts of the vehicle |3.3.A.4|1
Offside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Front Fuel system component leaking |7.2.3|1
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside rear brake juddering severely |3.7.A.5b|1
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Drivers seat insecure (6.2.5 (a) (ii))1
Nearside Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (c))1
Nearside Stop lamp(s) adversely affected by the operation of another lamp (4.3.3 (b))1
Offside Rear fog lamp not working |4.5.1 |a| |ii||1
Nearside Rear Direction indicator not working |4.4.1 |a| |ii||1
Nearside Track rod end ball joint dust cover missing |2.2.C.1c|1
Offside front brake recording little or no effort |3.7.B.5a|1
Exhaust system not adequately supported |7.1.1|1
Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Indicator switch faulty |1.4.A.1|1
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Centre Exhaust system not adequately supported |7.1.1|1
Nearside Stop lamp not working |1.2.1b|1
Driver`s door cannot be opened from outside the vehicle |6.2.B.1b|1
Nearside Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Nearside Side repeater incorrect colour |1.4.A.2f|1
Offside Front Direction indicator not working |1.4.A.2c|1
Offside Rear Rear fog lamp missing |1.3.2a|1
Windscreen washer control missing |8.2.1a|1
Nearside Rear position lamp|s| incomplete |1.1.4a|1
Offside Rear position lamp|s| incomplete |1.1.4a|1
Nearside Rear Stop lamp not working |1.2.1b|1
Nearside front brake recording little or no effort |3.7.B.5a|1
Parking brake lever has no reserve travel |3.1.6b|1
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Front Body has a sharp edge caused by corrosion |6.1.C.1|1
Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Front Braking system leaking |3.6.A.1|1
Offside Front wheel bearing rough when rotated |2.5.A.2|1
Nearside Rear Direction indicator obscured more than 50% |1.4.A.2d|1
Offside Headlamp not working on main beam |1.7.5a|1
Brake load sensing valve linkage seized |3.6.E.3|1
Side repeater incorrect colour |1.4.A.2f|1
Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Horn control missing |1.6.1|1
Fuel system component leaking |7.2.3|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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