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MOT History from tests of petrol MERCEDES BENZ SLs year 1986

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

mot history
Pass percent:78.03%
(The average a petrol MERCEDES BENZ SL year 1986 passes without issue)
Based on:2,494 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment190
Windscreen wiper does not clear the windscreen effectively60
Brake pipe excessively corroded35
Anti-lock braking system warning lamp indicates an ABS fault34
Registration plate lamp issues32
Exhaust emissions carbon monoxide content excessive (7.3.B.1a)32
Brake hose excessively deteriorated22
Offside Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)18
Nearside Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)16
Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))16
Registration plate issues15
Brakes imbalanced across an axle13
Horn not working (1.6.2a)12
Offside front brake binding (3.7.B.1)12
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))12
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))12
Nearside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)9
Nearside front brake binding (3.7.B.1)9
Offside Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)9
Parking brake: efficiency below requirements (3.7.B.7)9
Hazard warning switch faulty (1.4.B.1d)8
Exhaust system not adequately supported (7.1.1)8
Front Exhaust has a major leak of exhaust gases (7.1.2)8
Rear brake binding8
Windscreen washer not working 7
Hazard warning lamps not flashing in phase, with ignition off (1.4.B.1f)7
Exhaust has a major leak of exhaust gases (7.1.2)7
Offside Rear fog lamp not working (1.3.2b)7
Nearside Stop lamp not working (1.2.1b)6
Rear fog lamp tell tale not working (1.3.1b)6
Hazard warning lamps not flashing in phase, with ignition on (1.4.B.1f)6
Nearside Rear Subframe mounting prescribed area is excessively corroded (2.4.A.3)6
Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))6
Parking brake efficiency below requirements (1.4.2 (a) (i))5
Offside Front Direction indicator not working (1.4.A.2c)5
Centre Exhaust has a major leak of exhaust gases (7.1.2)5
Offside Stop lamp not working (1.2.1b)5
Anti-lock braking system warning lamp does not illuminate (3.4.1b)5
Offside Front Lower Suspension arm corroded and seriously weakened (2.4.G.1)5
Service brake: efficiency below requirements (3.7.B.7)5
Front Exhaust system not adequately supported (7.1.1)5
Offside Front position lamp(s) not working (1.1.A.3b)5
Centre Exhaust system not adequately supported (7.1.1)5
Offside Rear Subframe mounting prescribed area is excessively corroded (2.4.A.3)5
Rear parking brake recording little or no effort5
Rear Exhaust has a major leak of exhaust gases (7.1.2)5
Rear Exhaust system not adequately supported (7.1.1)5
Nearside Front Direction indicator not working (4.4.1 (a) (ii))5
Power steering component(s) leaking (2.3.3b)4
Steering damper leaking oil (2.2.C.1f)4
Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt (2.4.G.2)4
Front brake application uneven4
Nearside Front position lamp(s) not working (1.1.A.3b)4
Direction indicators not working (1.4.A.2c)4
Offside Rear fog lamp not working (4.5.1 (a) (ii))4
Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b))4
Rear Mechanical brake component has restricted free movement4
Offside Front Brake hose leaking (3.6.A.1)4
Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt (2.4.G.2)4
Offside Headlamp not working on dipped beam (1.7.5a)4
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))4
Rear fog lamp not working (1.3.2b)4
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|4
Centre Exhaust mounting missing (7.1.1b)4
Offside Front front brake binding (3.7.B.1)4
Hazard warning lamps inoperative (1.4.B.1b)3
Offside Front Position lamp not working (4.2.1 (a) (ii))3
Nearside Front Lower Suspension arm corroded and seriously weakened (5.3.3 (b) (i))3
Nearside Side repeater insecure (1.4.A.2b)3
Nearside Front Lower Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)3
Offside Front Lower Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)3
Steering box has a significant oil leak (2.2.D.2e)3
Nearside Rear Shock absorber has a serious fluid leak (2.7.3)3
Offside Headlamp not working on main beam (1.7.5a)3
Nearside Rear Service brake excessively binding (1.2.1 (f))3
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)3
Nearside Front Headlamp aim beam image obviously incorrect (1.8.A.1b)3
Offside Suspension component mounting prescribed area is excessively corroded (2.4.A.3)3
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a))3
Exhaust engine idle speed too high (7.3.A.2a)3
Offside Rear Stop lamp not working (1.2.1b)3
Stop lamp(s) all not working (4.3.1 (a) (iii))3
Offside Rear Service brake excessively binding (1.2.1 (f))3
Nearside Rear Stop lamp not working (1.2.1b)3
Offside Rear Direction indicator not working (1.4.A.2c)3
Nearside Headlamp aim beam image kick up to the offside (1.8)3
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)3
Windscreen wiper blade insecure3
Offside Side repeater insecure (1.4.A.2b)3
Steering system has excessive free play detected at the steering wheel (steering box fitted) (2.2.A.1a)3
Horn not working (7.7 (a))3
Offside Front Front position lamp(s) not working (1.1.A.3b)3
Horn not working (7.7 (a) (ii))3
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))2
Brake hose damaged2
Offside Front Brake hose bulging under pressure (3.6.B.3)2
Offside Front Lower Suspension arm corroded and seriously weakened (5.3.3 (b) (i))2
Offside Inner Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)2
Nearside Inner Rear Suspension component mounting prescribed area is excessively corroded (2.4.A.3)2
Offside Inner Front Suspension component mounting prescribed area is excessively corroded (2.4.A.3)2
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.2.C.1c)2
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Nearside Front Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)2
Offside Front Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt (2.4.G.2)2
Offside Front Drivers seat insecure (6.2.A.1)2
Drivers seat insecure (6.2.A.1)2
Supplementary Restraint System warning lamp indicates a fault |5.4.2|2
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Nearside Front Direction indicator not working (1.4.A.2c)2
Anti-lock braking system warning lamp sequence is incorrect (3.4.1d)2
Offside Front Anti-roll bar attachment bracket/mounting corroded and its strength is seriously reduced (2.4.G.1)2
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone A (8.3.1e)2
Power steering component(s) leaking from a failed seal (2.3.3b)2
Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))2
Suspension component mounting prescribed area is excessively corroded (2.4.A.3)2
Brake pedal spongy (3.3.B.1b)2
Brake hose has insufficient room to move2
Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii))2
Parking brake: efficiency below requirements |3.7.B.7|2
Nearside Front Outer Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))2
Offside Front Outer Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))2
Offside Front Sub-frame rubber bush deteriorated resulting in excessive movement (2.4.G.2)2
Offside Rear Shock absorber has a serious fluid leak (2.7.3)2
Offside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Offside Service brake excessively binding and nearside front (1.2.1 (f))2
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering (6.1.A.1)2
Offside Rear Rear position lamp(s) excessively deteriorated so that it is not visible from a reasonable distance (1.1.A.3d)2
Rear fog lamp not working (4.5.1 (a) (ii))2
Anti-lock braking system warning lamp does not illuminate (1.6 (a))2
Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))2
Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))2
Nearside Rear Brake hose excessively twisted (1.1.12 (b) (ii))2
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt (2.2.C.1c)2
Nearside Front Lower Suspension component ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Offside Rear Position lamp not working (4.2.1 (a) (ii))2
Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength floor (5.3.6 (a) (i))2
Nearside Front Headlamp not in good working order adversely affecting beam image (1.2.4a)2
Hazard warning tell tale not working correctly (1.4.B.1e)2
front brakes release unevenly (3.7.B.4)2
Mechanical brake component has restricted free movement2
All direction indicators not working (4.4.1 (a) (ii))2
Nearside Front Position lamp not working (4.2.1 (a))2
Nearside Front Steering component mounting prescribed area is excessively corroded (2.2.C.1h)2
Rear brake application uneven2
Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Steering box leaking to the extent that oil is dripping (2.1.1 (e) (ii))2
Offside Rear position lamp(s) not working (1.1.A.3b)2
Offside Front Front wheel bearing rough when rotated (2.5.A.2)2
Nearside Side repeater not working (1.4.A.2c)2
Nearside Hazard warning lamps not flashing in phase, with ignition off (1.4.B.1f)2
rear parking (secondary) brakes imbalanced (3.7.B.6b)2
Hazard warning switch inoperative (4.4.2 (a) (ii))2
Offside Front Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i))2
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))2
Emissions not tested (7.0)2
Offside Front Seat belt anchorage prescribed area is excessively corroded (5.2.6)2
Nearside Front Front position lamp(s) not working (1.1.A.3b)2
Nearside Rear position lamp(s) excessively deteriorated so that it is not visible from a reasonable distance (1.1.A.3d)2
Offside Side repeater not working |1.4.A.2c|2
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings (6.1.B.2)2
Nearside Front Position lamp not working (4.2.1 (a) (ii))2
Exhaust mounting missing (7.1.1b)2
Parking brake lever has no reserve travel (3.1.6b)2
Offside Rear Rear fog lamp not working |1.3.2b|2
Nearside Front Suspension arm corroded and seriously weakened (2.4.G.1)2
Nearside Front Seat belt anchorage prescribed area is excessively corroded (5.2.6)2
Rear fog lamp tell-tale not working (4.9.1 (a) (ii))2
Nearside Front Exhaust has a major leak of exhaust gases (7.1.2)2
Exhaust emissions hydrocarbon content excessive (7.3.B.1b)2
Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Centre Drag link end ball joint has excessive play (2.2.B.1f)2
Nearside Suspension component mounting prescribed area is excessively corroded (2.4.A.3)2
Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner sill (5.3.6 (a) (i))2
Nearside Front front brake binding (3.7.B.1)2

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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