MOT History from tests of petrol ALFA ROMEO 166s year 2001

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:48.06%

(The average a petrol ALFA ROMEO 166 year 2001 passes without issue)

Based on:4,026 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	689
Parking brake: efficiency below requirements \|3.7.B.7\|	454
Rear parking brake recording little or no effort	307
Brake pipe excessively corroded	301
Registration plate lamp issues	278
Windscreen wiper does not clear the windscreen effectively	257
Rear brake binding	224
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	218
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	201
Offside Front coil spring fractured \|2.4.C.1a\|	115
Rear Exhaust system not adequately supported \|7.1.1\|	89
Nearside Stop lamp not working \|1.2.1b\|	79
Brake hose excessively deteriorated	78
Nearside Front coil spring fractured \|2.4.C.1a\|	73
Offside Stop lamp not working \|1.2.1b\|	63
Registration plate issues	62
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	61
Brakes imbalanced across an axle	55
Centre Exhaust system not adequately supported \|7.1.1\|	54
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	53
Exhaust system not adequately supported \|7.1.1\|	53
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	50
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits \|7.3.D.3\|	48
Front brake disc in such a condition that it is seriously weakened	46
Offside Front coil spring incomplete \|2.4.C.1a\|	43
Nearside Front constant velocity joint gaiter split \|2.5.C.1a\|	41
Parking brake lever has no reserve travel \|3.1.6b\|	40
Nearside Headlamp not working on dipped beam \|1.7.5a\|	39
Offside Rear fog lamp not working \|1.3.2b\|	37
Front Exhaust system not adequately supported \|7.1.1\|	32
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	30
Offside Front Upper Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	29
Offside Headlamp not working on dipped beam \|1.7.5a\|	28
Nearside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Nearside Front Upper Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	26
Offside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Offside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Exhaust has a major leak of exhaust gases \|7.1.2\|	25
Exhaust emissions carbon monoxide content at idle excessive \|7.3.D.4\|	25
Offside Front coil spring broken \|2.4.C.1a\|	24
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	24
Nearside Front coil spring incomplete \|2.4.C.1a\|	24
Offside Rear Stop lamp not working \|1.2.1b\|	23
Anti-lock braking system warning lamp indicates an ABS fault	22
Nearside Rear Stop lamp not working \|1.2.1b\|	22
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	21
Exhaust emissions carbon monoxide content after 2nd fast idle excessive \|7.3.D.3\|	21
Nearside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	21
Offside Front constant velocity joint gaiter split \|2.5.C.1a\|	20
Nearside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	19
Supplementary Restraint System warning lamp indicates a fault \|5.4.2\|	19
Nearside Front coil spring broken \|2.4.C.1a\|	17
Nearside Front Front constant velocity joint gaiter split \|2.5.C.1a\|	17
Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	17
Nearside Rear Lower Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	16
Offside Rear Lower Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	16
Service brake: efficiency below requirements \|3.7.B.7\|	16
Windscreen has damage	16
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	15
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	15
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	15
Rear Mechanical brake component has restricted free movement	15
Front position lamp\|s\| not working \|1.1.A.3b\|	14
Horn not working \|1.6.2a\|	14
Rear brake application uneven	13
Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	13
Emissions not tested \|7.0\|	13
Windscreen wiper blade insecure	13
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	13
Rear Exhaust mounting missing \|7.1.1b\|	12
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	12
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	12
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	12
Offside Front coil spring cracked \|2.4.C.1a\|	12
Indicator tell tale inoperative \|1.4.A.2a\|	11
Nearside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	11
Rear brake disc in such a condition that it is seriously weakened	10
Brake performance not tested \|3.7.A.1\|	10
Stop lamp remains on when the brakes are released	10
Offside Front suspension has excessive play in a upper suspension ball joint \|2.5.B.1a\|	10
Nearside Front coil spring cracked \|2.4.C.1a\|	10
Nearside Inner Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	9
Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Centre Exhaust mounting missing \|7.1.1b\|	9
Offside Rear Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	9
Offside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	9
Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	9
Rear fog lamp tell tale not working \|1.3.1b\|	9
Offside Front Front constant velocity joint gaiter split \|2.5.C.1a\|	9
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	9
Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	9
Offside Rear Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	8
Nearside Front Position lamp not working (4.2.1 (a) (ii))	8
Offside Side repeater not working \|1.4.A.2c\|	8
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	8
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	8
Offside Windscreen wiper blade deteriorated \|8.2.2\|	8
Offside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	8
Front brake application uneven	8
Nearside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	8
Exhaust mounting missing \|7.1.1b\|	8
Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	8
Bonnet cannot be secured in the closed position \|8.4.1\|	8
Offside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	8
Exhaust has part of the system excessively deteriorated \|7.1.1a\|	8
Offside Inner Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	8
Nearside Rear Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	8
Offside Rear Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	8
Exhaust emissions hydrocarbon content after 2nd fast idle excessive \|7.3.D.3\|	8
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\|	8
Offside Rear Rear fog lamp not working \|1.3.2b\|	8
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))	8
Nearside Rear An item not tested \|Manual\|	7
Offside Rear An item not tested \|Manual\|	7
Offside rear brake recording little or no effort \|3.7.B.5a\|	7
Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	7
Nearside rear brake recording little or no effort \|3.7.B.5a\|	7
Offside Rear Anti-roll bar linkage has excessive play in a ball joint \|2.4.G.2\|	7
Nearside Rear Brake cable has restricted free movement \|3.5.1k\|	7
Nearside Rear Trailing arm has excessive play in a pin/bush \|2.4.G.2\|	7
rear parking \|secondary\| brakes imbalanced	7
Offside Front Brake hose excessively damaged \|3.6.B.4d\|	7
Offside Rear Lower Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	7
Nearside Front suspension has excessive play in a upper suspension ball joint \|2.5.B.1a\|	7
Nearside Indicator tell tale inoperative \|1.4.A.2a\|	7
Offside Indicator tell tale inoperative \|1.4.A.2a\|	7
Nearside Front brake disc excessively pitted \|3.5.1h\|	7
Offside Front brake disc excessively pitted \|3.5.1h\|	7
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	7

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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Headlamp aim out of alignment	689
Parking brake: efficiency below requirements \|3.7.B.7\|	454
Rear parking brake recording little or no effort	307
Brake pipe excessively corroded	301
Registration plate lamp issues	278
Windscreen wiper does not clear the windscreen effectively	257
Rear brake binding	224
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	218
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	201
Offside Front coil spring fractured \|2.4.C.1a\|	115
Rear Exhaust system not adequately supported \|7.1.1\|	89
Nearside Stop lamp not working \|1.2.1b\|	79
Brake hose excessively deteriorated	78
Nearside Front coil spring fractured \|2.4.C.1a\|	73
Offside Stop lamp not working \|1.2.1b\|	63
Registration plate issues	62
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	61
Brakes imbalanced across an axle	55
Centre Exhaust system not adequately supported \|7.1.1\|	54
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	53
Exhaust system not adequately supported \|7.1.1\|	53
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	50
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits \|7.3.D.3\|	48
Front brake disc in such a condition that it is seriously weakened	46
Offside Front coil spring incomplete \|2.4.C.1a\|	43
Nearside Front constant velocity joint gaiter split \|2.5.C.1a\|	41
Parking brake lever has no reserve travel \|3.1.6b\|	40
Nearside Headlamp not working on dipped beam \|1.7.5a\|	39
Offside Rear fog lamp not working \|1.3.2b\|	37
Front Exhaust system not adequately supported \|7.1.1\|	32
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	30
Offside Front Upper Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	29
Offside Headlamp not working on dipped beam \|1.7.5a\|	28
Nearside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Nearside Front Upper Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	26
Offside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Offside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	26
Exhaust has a major leak of exhaust gases \|7.1.2\|	25
Exhaust emissions carbon monoxide content at idle excessive \|7.3.D.4\|	25
Offside Front coil spring broken \|2.4.C.1a\|	24
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	24
Nearside Front coil spring incomplete \|2.4.C.1a\|	24
Offside Rear Stop lamp not working \|1.2.1b\|	23
Anti-lock braking system warning lamp indicates an ABS fault	22
Nearside Rear Stop lamp not working \|1.2.1b\|	22
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	21
Exhaust emissions carbon monoxide content after 2nd fast idle excessive \|7.3.D.3\|	21
Nearside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	21
Offside Front constant velocity joint gaiter split \|2.5.C.1a\|	20
Nearside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	19
Supplementary Restraint System warning lamp indicates a fault \|5.4.2\|	19
Nearside Front coil spring broken \|2.4.C.1a\|	17
Nearside Front Front constant velocity joint gaiter split \|2.5.C.1a\|	17
Offside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	17
Nearside Rear Lower Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	16
Offside Rear Lower Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	16
Service brake: efficiency below requirements \|3.7.B.7\|	16
Windscreen has damage	16
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	15
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	15
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	15
Rear Mechanical brake component has restricted free movement	15
Front position lamp\|s\| not working \|1.1.A.3b\|	14
Horn not working \|1.6.2a\|	14
Rear brake application uneven	13
Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	13
Emissions not tested \|7.0\|	13
Windscreen wiper blade insecure	13
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	13
Rear Exhaust mounting missing \|7.1.1b\|	12
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	12
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	12
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	12
Offside Front coil spring cracked \|2.4.C.1a\|	12
Indicator tell tale inoperative \|1.4.A.2a\|	11
Nearside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	11
Rear brake disc in such a condition that it is seriously weakened	10
Brake performance not tested \|3.7.A.1\|	10
Stop lamp remains on when the brakes are released	10
Offside Front suspension has excessive play in a upper suspension ball joint \|2.5.B.1a\|	10
Nearside Front coil spring cracked \|2.4.C.1a\|	10
Nearside Inner Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	9
Nearside Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	9
Centre Exhaust mounting missing \|7.1.1b\|	9
Offside Rear Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	9
Offside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	9
Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	9
Rear fog lamp tell tale not working \|1.3.1b\|	9
Offside Front Front constant velocity joint gaiter split \|2.5.C.1a\|	9
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	9
Offside Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	9
Offside Rear Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	8
Nearside Front Position lamp not working (4.2.1 (a) (ii))	8
Offside Side repeater not working \|1.4.A.2c\|	8
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	8
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	8
Offside Windscreen wiper blade deteriorated \|8.2.2\|	8
Offside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	8
Front brake application uneven	8
Nearside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	8
Exhaust mounting missing \|7.1.1b\|	8
Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	8
Bonnet cannot be secured in the closed position \|8.4.1\|	8
Offside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	8
Exhaust has part of the system excessively deteriorated \|7.1.1a\|	8
Offside Inner Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	8
Nearside Rear Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	8
Offside Rear Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	8
Exhaust emissions hydrocarbon content after 2nd fast idle excessive \|7.3.D.3\|	8
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\|	8
Offside Rear Rear fog lamp not working \|1.3.2b\|	8
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))	8
Nearside Rear An item not tested \|Manual\|	7
Offside Rear An item not tested \|Manual\|	7
Offside rear brake recording little or no effort \|3.7.B.5a\|	7
Nearside Rear Anti-roll bar rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	7
Nearside rear brake recording little or no effort \|3.7.B.5a\|	7
Offside Rear Anti-roll bar linkage has excessive play in a ball joint \|2.4.G.2\|	7
Nearside Rear Brake cable has restricted free movement \|3.5.1k\|	7
Nearside Rear Trailing arm has excessive play in a pin/bush \|2.4.G.2\|	7
rear parking \|secondary\| brakes imbalanced	7
Offside Front Brake hose excessively damaged \|3.6.B.4d\|	7
Offside Rear Lower Suspension arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	7
Nearside Front suspension has excessive play in a upper suspension ball joint \|2.5.B.1a\|	7
Nearside Indicator tell tale inoperative \|1.4.A.2a\|	7
Offside Indicator tell tale inoperative \|1.4.A.2a\|	7
Nearside Front brake disc excessively pitted \|3.5.1h\|	7
Offside Front brake disc excessively pitted \|3.5.1h\|	7
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	7

MOT History from tests of petrol ALFA ROMEO 166s year 2001

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