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MOT History from tests of diesel MERCEDES BENZ 300s year 1994

Review the list of common MERCEDES BENZ 300 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:68.71%
(The average a diesel MERCEDES BENZ 300 year 1994 passes without issue)
Based on:505 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment36
Brake pipe excessively corroded22
Brake hose excessively deteriorated15
Registration plate lamp issues15
Anti-lock braking system warning lamp indicates an ABS fault12
Parking brake: efficiency below requirements |3.7.B.7|9
Registration plate issues8
Rear parking brake recording little or no effort8
Brakes imbalanced across an axle5
Windscreen wiper does not clear the windscreen effectively5
Parking brake lever has no reserve travel |3.1.6b|5
Service brake: efficiency below requirements |3.7.B.7|5
Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|4
Offside Front coil spring fractured |2.4.C.1a|4
Windscreen washer not working 4
Rear brake binding4
Fuel hose leaking |7.2.3|4
Offside Rear Shock absorber has a serious fluid leak |2.7.3|4
Nearside Front position lamp|s| not working |1.1.A.3b|4
Nearside Rear Shock absorber has negligible damping effect |2.7.5|4
Nearside rear brake recording little or no effort |3.7.B.5a|4
Offside Rear Direction indicator incorrect colour |1.4.A.2f|4
Nearside Front wheel bearing has excessive play |2.5.A.3c|3
Front brake application uneven3
Front Exhaust has a major leak of exhaust gases |7.1.2|3
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b|3
Nearside Front Side repeater not working |1.4.A.2c|3
Offside Rear position lamp|s| not working |1.1.A.3b|3
Nearside Side repeater not working |1.4.A.2c|3
Nearside Front coil spring fractured |2.4.C.1a|3
Fuel system component leaking |7.2.3|3
Offside Front coil spring incomplete |2.4.C.1a|3
Offside Rear Rear fog lamp not working |1.3.2b|3
Offside Rear fog lamp not working |1.3.2b|3
Nearside Front Drag link end ball joint has excessive play |2.2.B.1f|3
Nearside Rear coil spring fractured |2.4.C.1a|3
Offside front brake binding |3.7.B.1|3
Nearside Rear Direction indicator incorrect colour |1.4.A.2f|3
Nearside Headlamp aim beam image kick up to the offside |1.8|3
Offside Headlamp aim beam image kick up to the offside |1.8|3
Nearside Rear wheel bearing has excessive play |2.6.2|2
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|2
Offside Track rod end ball joint has excessive play |2.2.B.1f|2
Anti-lock braking system warning lamp does not illuminate |3.4.1b|2
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|2
Rear Exhaust mounting missing |7.1.1b|2
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))2
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|2
Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|2
Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|2
Offside Front Front position lamp|s| not working |1.1.A.3b|2
Centre Exhaust has a major leak of exhaust gases |7.1.2|2
Offside Headlamp not working on main beam |1.7.5a|2
Rear brake application uneven2
Front Windscreen wiper not operating automatically when switched on |8.2.1b|2
Offside Front Headlamp not working on dipped beam |1.7.5a|2
Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a|2
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|2
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|2
Offside Front Direction indicator incorrect colour |1.4.A.2f|2
Offside rear brake recording little or no effort |3.7.B.5a|2
Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|2
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front position lamp|s| not working |1.1.A.3b|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside front brake binding |3.7.B.1|2
Offside Rear Exhaust system not adequately supported |7.1.1|2
Nearside Steering pivot point has excessive play |2.2.B.1g|2
Offside Front Floor excessively deteriorated under drivers feet |6.2.4 |a| |i||1
Nearside Rear Subframe mounting prescribed area excessively corroded significantly reducing structural strength front of inner wheel arch |5.3.6 |a| |i||1
Rear Shock absorbers has a serious fluid leak rigid pipes |5.3.2 |b||1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Offside Stop lamp has less than 50% of the light sources illuminating |1.2.1b|1
Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Nearside Front Headlamp aim not tested |1.8.A.1c|1
Nearside Front Shock absorber has an excessively worn bush |2.7.4|1
Offside Front Shock absorber has an excessively worn bush |2.7.4|1
front brakes release unevenly |3.7.B.4|1
Hazard warning lamps inoperative offside dont work (4.4.1 (e))1
Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a))1
Drivers seat fore and aft adjustment mechanism not functioning as intended. (6.2.5 (b) (i))1
Offside Outer Seat belt anchorage prescribed area is inadequately repaired sill, no continuous weld (7.1.1 (a) (i))1
Nearside Outer Seat belt anchorage prescribed area is inadequately repaired sill, no continuous weld (7.1.1 (a) (i))1
Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner wheel arch (5.3.6 (a) (i))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))1
Front Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength chassis (5.3.6 (a) (i))1
Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength chassis (5.3.6 (a) (i))1
Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength sill end (5.3.6 (a) (i))1
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|1
Nearside Front Seat belt insecurely fixed to the seat |5.2.1a|1
Offside Front Front wheel bearing has excessive play |2.5.A.3c|1
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Rear Fluid suspension pipe leaking |2.4.D.2|1
Nearside Front coil spring cracked |2.4.C.1a|1
Offside Front coil spring cracked |2.4.C.1a|1
Nearside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength FLOOR (5.3.6 (a) (i))1
Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength FLOOR (5.3.6 (a) (i))1
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings subframe |6.1.B.2|1
Centre Front Lower Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i))1
Nearside Rear Seat belt anchorage prescribed area strength or continuity significantly reduced inner sill (7.1.1 (a) (i))1
Offside Rear Upper Suspension spring mounting prescribed area excessively corroded significantly reducing structural strength mounting (5.3.6 (a) (i))1
Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength out rigger (5.3.6 (a) (i))1
Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength Out rigger (5.3.6 (a) (i))1
Offside Rear Suspension component mounting prescribed area excessively corroded significantly reducing structural strength Coil spring upper mounting (5.3.6 (a) (i))1
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front Hydraulic brake calliper leaking |1.1.16 |b| |i||1
Nearside Rear Rear position lamp|s| has less than 50% of the light sources illuminating |1.1.A.3b|1
Nearside Rear Upper Suspension component mounting prescribed area is excessively corroded shock mount |2.4.A.3|1
Offside Front Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Nearside Rear Panhard rod has excessive play in a pin/bush |2.4.G.2|1
Horn not working |1.6.2a|1
Nearside Front Direction indicators not working |1.4.A.2c|1
Offside Front Direction indicators not working |1.4.A.2c|1
Nearside Rear Direction indicators not working |1.4.A.2c|1
Offside Rear Direction indicators not working |1.4.A.2c|1
Offside Front Side repeater not working |1.4.A.2c|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Rear Exhaust has part of the system excessively deteriorated |7.1.1a|1
Offside Front Shock absorber has a serious fluid leak |2.7.3|1
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front Direction indicator insecure and broken |1.4.A.2b|1
Battery insecure |1.9.1|1
Fuel pipe excessively damaged and excessive corrosion |7.2.2|1
Rear Fluid suspension levelling valve leaking |2.4.D.2|1
Offside Rear Lower Suspension arm pin or bush excessively worn |5.3.4 |a| |i||1
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings door step |6.1.B.2|1
Offside Side repeater not working |1.4.A.2c|1
Nearside Front position lamp|s| has less than 50% of the light sources illuminating very dull |1.1.A.3b|1
Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f|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
Front passenger door hinge missing tail gate |6.2.B.2|1
Offside Rear Lower Suspension arm has excessive play in a pin/bearing |2.4.G.2|1
Offside Side repeater insecure |1.4.A.2b|1
Offside Stop lamp not working |1.2.1b|1
rear brakes release unevenly |3.7.B.4|1
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear position lamp|s| incomplete |1.1.4a|1
Offside Rear Anti-roll bar attachment bracket/mounting missing bracket missing (5.3.3 (a) (ii))1
Nearside Rear Subframe mounting prescribed area fractured to the extent that control of the vehicle is likely to be adversely affected front mounting point (5.3.6 (a) (ii))1
Centre Front Steering damper leaking oil |2.2.C.1f|1
Nearside Front Shock absorber has negligible damping effect |2.7.5|1
Offside Front Shock absorber has negligible damping effect |2.7.5|1
Offside Front Drag link end ball joint has excessive play |2.2.B.1f|1
Nearside Rear coil spring cracked |2.4.C.1a|1
Offside Rear coil spring cracked |2.4.C.1a|1
Nearside front brake juddering severely |3.7.A.2b|1
Nearside Rear Upper Tie bar/rod has excessive play in a pin/bush |2.4.G.2|1
Nearside Rear Stop lamp not working |1.2.1b|1
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Offside Rear Brake pipe excessively damaged |3.6.B.2c|1
Power steering pump leaking from a failed component |2.3.3b|1
Front Position lamp not working |4.2.1 |a||1
Bonnet cannot be secured in the closed position |3.1 |b| |i||1
Brake pedal has insufficient reserve movement |3.3.A.5|1
Brake pedal reservoir fluid level decreases after several brake applications |3.3.C.1|1
Offside Front Braking system leaking |3.6.A.1|1
Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a))1
Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b))1
Nearside 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
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 Front 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 Front 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 Stop lamp|s| not working |4.3.1 |a| |ii||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 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 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 Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|1
Nearside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|1
Offside Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|1
brake disc excessively pitted |3.5.1h|1
rear brake recording little or no effort |3.7.B.5a|1
Driver`s seat insecure |6.2.A.1|1
Front passenger seat insecure |6.2.3|1
Shock absorber has an excessively worn bush |2.7.4|1
Front Steering damper leaking oil |2.2.C.1f|1
Windscreen has damage1
Exhaust has a major leak of exhaust gases |7.1.2|1
Rear fog lamp tell tale not working |1.3.1b|1
Front position lamp|s| not working |1.1.A.3b|1
Rear Exhaust system not adequately supported |7.1.1|1
Nearside Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|1
Nearside Rear coil spring broken |2.4.C.1a|1
Exhaust system not adequately supported centre bracket missing |7.1.1|1
Brake hydraulic reservoir cap missing |3.6.G.1a|1
Offside rear brake grabbing severely |3.7.A.5b|1
Nearside Rear Passengers seat backrest cannot be secured in the upright position. (6.2.6 (a) (i))1
Speedometer cannot be illuminated (7.8 (c) (ii))1
Headlamp levelling device inoperative (4.1.5 (a))1
Nearside Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii))1
Offside Steering linkage ball joint ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Nearside Front Lower Axle swivel pins and bushes swivel pin and/or bush excessively worn (5.1.2 (b) (i))1
Offside Rear coil spring fractured |2.4.C.1a|1
Offside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition Exhaust missing |7.1.4|1
Power steering pipe|s| or hose|s| leaking |2.3.3b|1
Nearside Front Brake hose leaking |3.6.A.1|1
Offside coil spring broken |2.4.C.1a|1
Offside Seat belt anchorage prescribed area is excessively corroded outer sill |5.2.6|1
Offside Front Direction indicators incorrect colour |1.4.A.2f|1
Offside Rear Direction indicators incorrect colour |1.4.A.2f|1
Offside Front Direction indicator not working |1.4.A.2c|1
Front Brake pipe leaking |3.6.A.1|1
Nearside Front Brake pipe inadequately supported |3.6.B.1|1
Offside Front Brake pipe inadequately supported |3.6.B.1|1
Steering component mounting prescribed area is excessively corroded |2.2.C.1h|1
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Rear Brake hose bulging under pressure |3.6.B.3|1
Nearside Front Upper Brake hose bulging under pressure |3.6.B.3|1
Nearside Front Lower Brake hose bulging under pressure |3.6.B.3|1
Nearside Side repeater missing |1.4.A.2b|1
Offside Side repeater missing |1.4.A.2b|1
Nearside Front Direction indicator incorrect colour |1.4.A.2f|1
Brake load sensing valve linkage seized |3.6.E.3|1
Offside Rear Lower Shock absorber has an excessively worn bush |2.7.4|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a|1
Nearside Front Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Rear Suspension spring mounting prescribed area is inadequately repaired |2.4.A.3|1
Nearside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Rear Rear fog lamp insecure |1.3.2a|1
Rear Rear fog lamp not working |1.3.2b|1
Centre Statutory seat belt missing |5.1.1|1
Front Fuel hose leaking |7.2.3|1
Rear Fuel hose leaking |7.2.3|1
Offside Rear fog lamp not working (4.5.1 (a) (ii))1
Nearside Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))1
Nearside Headlamp lens seriously defective (4.1.1 (b) (ii))1
Offside Front Lower Front suspension has excessive movement at a suspension ball joint |2.5.A.1c|1
Windscreen wiper not operating automatically when switched on |8.2.1b|1
Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Nearside Rear Wheel bolt|s| missing |4.2.A.1e|1
Offside Rear Wheel bolt|s| missing |4.2.A.1e|1
Offside Front Wheel bolt|s| missing |4.2.A.1e|1
Nearside Rear Exhaust system not adequately supported |7.1.1|1
Offside Outer Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Rear Body has a sharp edge caused by damage |6.1.C.1|1
Brake hose damaged1
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Front Axle swivel joint has excessive play |2.5.A.3b|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Nearside Headlamp not working on main beam |1.7.5a|1
Nearside Front Direction indicator not working |1.4.A.2c|1
Offside Rear Shock absorber has negligible damping effect |2.7.5|1
Exhaust emits an excessive level of metered smoke for a turbo charged engine |7.4.B.3b|1
Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Headlamp insecure |1.7.3|1
Rear fog lamp not working |1.3.2b|1
Offside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.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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