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MOT History from tests of petrol ALFA ROMEO 166s year 2003

Review the list of common ALFA ROMEO 166 failures below or to perform a specific mot history check on your ALFA ROMEO then use our popular KnowYourCar service

mot history
Pass percent:56.08%
(The average a petrol ALFA ROMEO 166 year 2003 passes without issue)
Based on:1,464 MOT Tests
Most common failuresNo# failures
Parking brake: efficiency below requirements |3.7.B.7|146
Headlamp aim out of alignment136
Rear parking brake recording little or no effort99
Windscreen wiper does not clear the windscreen effectively98
Brake pipe excessively corroded88
Registration plate lamp issues65
Nearside Front position lamp|s| not working |1.1.A.3b|51
Offside Front position lamp|s| not working |1.1.A.3b|47
Rear brake binding38
Rear Exhaust system not adequately supported |7.1.1|28
Registration plate issues26
Offside Front Front position lamp|s| not working |1.1.A.3b|25
Centre Exhaust system not adequately supported |7.1.1|25
Exhaust system not adequately supported |7.1.1|22
Nearside Front Front position lamp|s| not working |1.1.A.3b|20
Supplementary Restraint System warning lamp indicates a fault |5.4.2|19
Nearside Stop lamp not working |1.2.1b|18
Offside Front coil spring broken |2.4.C.1a|18
Nearside Front coil spring fractured |2.4.C.1a|17
Brakes imbalanced across an axle17
Parking brake lever has no reserve travel |3.1.6b|17
Offside Front coil spring fractured |2.4.C.1a|16
Offside Rear fog lamp not working |1.3.2b|15
Brake hose excessively deteriorated13
Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3|12
Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2|12
Front Exhaust has a major leak of exhaust gases |7.1.2|11
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3|11
Nearside Front coil spring broken |2.4.C.1a|10
Offside Headlamp not working on dipped beam |1.7.5a|10
Nearside Headlamp not working on dipped beam |1.7.5a|10
Offside Front coil spring incomplete |2.4.C.1a|9
Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2|9
Offside Side repeater not working |1.4.A.2c|8
Rear Exhaust has a major leak of exhaust gases |7.1.2|8
Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2|8
Front brake disc in such a condition that it is seriously weakened8
Service brake: efficiency below requirements |3.7.B.7|7
Nearside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2|7
Offside Front Upper Suspension arm has excessive play in a ball joint |2.4.G.2|7
Offside Front Headlamp not working on dipped beam |1.7.5a|6
Emissions not tested |7.0|6
Rear fog lamp not working |1.3.2b|6
Rear Mechanical brake component has restricted free movement6
Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|6
Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2|6
Offside Front Position lamp not working (4.2.1 (a) (ii))6
Windscreen wiper blade insecure6
Offside Stop lamp not working |1.2.1b|5
Front brake application uneven5
Parking brake efficiency below requirements |1.4.2 |a| |i||5
Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|5
Nearside Front Headlamp not working on dipped beam |1.7.5a|5
Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|5
Nearside Front coil spring incomplete |2.4.C.1a|5
Exhaust has a major leak of exhaust gases |7.1.2|5
Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|4
Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|4
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))4
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))4
Offside Rear position lamp|s| not working |1.1.A.3b|4
Nearside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|4
Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|4
Power steering component|s| leaking |2.3.3b|4
Power steering pipe|s| or hose|s| leaking |2.3.3b|4
Nearside Indicator tell tale inoperative |1.4.A.2a|4
Offside Indicator tell tale inoperative |1.4.A.2a|4
Nearside Front Direction indicator not working |1.4.A.2c|4
Nearside Rear position lamp|s| not working |1.1.A.3b|4
Nearside Front Brake pipe leaking |3.6.A.1|4
Nearside Front Position lamp not working (4.2.1 (a) (ii))4
Windscreen has damage4
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|4
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|4
Parking brake efficiency below requirements (1.4.2 (a) (i))4
Offside Inner Rear position lamp|s| not working |1.1.A.3b|4
Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|3
Nearside Brake cable has wires broken and is significantly weakened |3.5.1b|3
Rear brake application uneven3
Offside Windscreen wiper blade deteriorated |8.2.2|3
Offside Front Coil spring fractured or broken |5.3.1 |b| |i||3
Offside Rear brake caliper has restricted free movement |3.5.1k|3
Nearside Rear Stop lamp not working |1.2.1b|3
Offside Front Side repeater not working |1.4.A.2c|3
Offside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2|3
Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4|3
Horn not working |1.6.2a|3
Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|3
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))3
Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b|3
Anti-lock braking system warning lamp indicates an ABS fault3
Rear fog lamp tell tale not working |1.3.1b|3
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b|3
Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b|3
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|3
Exhaust mounting missing |7.1.1b|3
Nearside Side repeater incorrect colour |1.4.A.2f|3
Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2|3
Stop lamp remains on when the brakes are released3
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))2
Exhaust has a major leak of exhaust gases front pipe (6.1.2 (a))2
Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))2
Nearside Stop lamp|s| not working |4.3.1 |a| |ii||2
Offside Rear passenger door cannot be opened from outside the vehicle |6.2.B.1c|2
Offside Front Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|2
Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|2
Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|2
Offside Front Direction indicator not working |1.4.A.2c|2
Nearside Windscreen wiper blade deteriorated |8.2.2|2
Parking brake lever is impeded in its travel |3.1.6c|2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Offside Rear Brake cable has restricted free movement |3.5.1k|2
Fuel tank leaking (6.1.3 (b) (i))2
Nearside Rear Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|2
Offside Rear Brake pipe leaking on a hydraulic braking system (1.1.11 (b) (ii))2
Offside Front Fuel pipe leaking |7.2.3|2
Nearside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|2
Front Windscreen wiper not operating automatically when switched on |8.2.1b|2
Exhaust has part of the system excessively deteriorated |7.1.1a|2
Nearside Front Side repeater not working |1.4.A.2c|2
Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|2
Offside Front Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|2
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|2
Nearside Rear Suspension arm has excessive play in a pin/bush |2.4.G.2|2
Offside Front Lower Suspension arm has excessive play in a pin/bush |2.4.G.2|2
Nearside Front Coil spring fractured or broken |5.3.1 |b| |i||2
Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h||2
Nearside Front Service brake excessively fluctuating |1.2.1 |e||2
Nearside Front Windscreen wiper blade deteriorated |8.2.2|2
Offside Rear Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|2
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Nearside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a|2
Windscreen washer not working 2
Offside Front Windscreen wiper blade deteriorated |8.2.2|2
Offside Front constant velocity joint gaiter split |2.5.C.1a|2
Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii||2
Offside Front Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|2
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Front Position lamp not working |4.2.1 |a||2
Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3|2
Centre Exhaust mounting missing |7.1.1b|2
Nearside front brake juddering severely |3.7.A.2b|2
Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a|2
Brake pedal spongy |3.3.B.1b|2
Brake pedal reservoir fluid level decreases after several brake applications |3.3.C.1|2
Nearside Rear Wheel bolt|s| missing |4.2.A.1e|2
Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|2
Brake cable has wires broken and is significantly weakened |3.5.1b|2
Offside Rear Exhaust system not adequately supported |7.1.1|2
Offside Rear fog lamp not working (4.5.1 (a) (ii))2
Offside Rear brake disc excessively pitted |3.5.1h|2
brake disc in such a condition that it is seriously weakened |3.5.1i|2
Offside Brake cable has wires broken and is significantly weakened |3.5.1b|2
Offside Front brake disc excessively pitted |3.5.1h|2
Front brake disc excessively pitted |3.5.1h|2
Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|2
Nearside Inner Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Parking brake inoperative on one side (1.4.1 (a))2
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Front All position lamps not working |1.1.A.3b|2
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|2
Offside Rear Stop lamp not working |1.2.1b|2
Offside Rear Wheel bolt|s| missing |4.2.A.1e|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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