MOT History from tests of petrol MG ZSs year 2004

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

mot history

Pass percent:62.37%

(The average a petrol MG ZS year 2004 passes without issue)

Based on:37,136 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	2599
Windscreen wiper does not clear the windscreen effectively	2162
Parking brake: efficiency below requirements \|3.7.B.7\|	1070
Registration plate lamp issues	907
Offside Stop lamp not working \|1.2.1b\|	765
Brakes imbalanced across an axle	759
Brake pipe excessively corroded	733
Nearside Stop lamp not working \|1.2.1b\|	704
Supplementary Restraint System warning lamp indicates a fault \|5.4.2\|	634
Rear parking brake recording little or no effort	610
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits \|7.3.D.3\|	572
Horn not working \|1.6.2a\|	515
Rear brake binding	497
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	487
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	436
Registration plate issues	408
Exhaust has a major leak of exhaust gases \|7.1.2\|	393
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	381
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	334
Battery insecure \|1.9.1\|	311
Offside Rear fog lamp not working \|1.3.2b\|	287
Offside Headlamp not working on dipped beam \|1.7.5a\|	280
Offside Rear Stop lamp not working \|1.2.1b\|	278
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	268
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	243
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	230
Nearside Rear Stop lamp not working \|1.2.1b\|	222
Rear brake disc in such a condition that it is seriously weakened	222
Nearside Headlamp not working on dipped beam \|1.7.5a\|	221
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	211
Emissions not tested \|7.0\|	194
Parking brake lever has no reserve travel \|3.1.6b\|	183
Front brake disc in such a condition that it is seriously weakened	172
Front brake application uneven	172
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	162
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	161
Parking brake efficiency below requirements (1.4.2 (a) (i))	158
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	146
Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	143
Exhaust emissions carbon monoxide content after 2nd fast idle excessive \|7.3.D.3\|	141
Nearside Rear passenger door cannot be opened from outside the vehicle \|6.2.B.1c\|	137
Exhaust emissions carbon monoxide content at idle excessive \|7.3.D.4\|	135
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\|	130
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	125
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	123
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	122
Offside front brake binding \|3.7.B.1\|	121
Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	112
Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	110
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	107
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	106
Nearside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	104
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	103
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	103
Offside Rear passenger door cannot be opened from outside the vehicle \|6.2.B.1c\|	100
Anti-lock braking system warning lamp indicates an ABS fault	100
Rear brake application uneven	98
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	96
Service brake: efficiency below requirements \|3.7.B.7\|	95
Rear fog lamp not working \|1.3.2b\|	94
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	94
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\|	93
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	90
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	89
Offside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	87
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	86
Windscreen has damage	85
Nearside Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	85
Nearside front brake binding \|3.7.B.1\|	84
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))	80
Windscreen wiper blade insecure	78
Parking brake efficiency below requirements \|1.4.2 \|a\| \|i\|\|	77
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))	75
Nearside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	75
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\|	73
Offside Front front brake binding \|3.7.B.1\|	72
Rear Mechanical brake component has restricted free movement	71
Offside Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	70
Offside Front coil spring broken \|2.4.C.1a\|	70
Rear fog lamp tell tale not working \|1.3.1b\|	68
Offside Rear Rear fog lamp not working \|1.3.2b\|	65
Offside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	63
Nearside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	63
Front brake excessively fluctuating	63
Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	63
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	63
Offside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	61
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))	60
Rear Exhaust system not adequately supported \|7.1.1\|	59
Exhaust system not adequately supported \|7.1.1\|	57
Offside Front coil spring fractured \|2.4.C.1a\|	57
Nearside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	56
Mechanical brake component has restricted free movement	55
Offside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	54
Exhaust emissions hydrocarbon content after 2nd fast idle excessive \|7.3.D.3\|	52
Front Exhaust system not adequately supported \|7.1.1\|	52
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	51
Nearside Front front brake binding \|3.7.B.1\|	49
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))	49
Offside Rear brake disc excessively pitted \|3.5.1h\|	49
Nearside Front coil spring broken \|2.4.C.1a\|	49
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\|	48
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\|	46
Offside Outer Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	46
Offside Side repeater incorrect colour \|1.4.A.2f\|	46
Offside Front constant velocity joint gaiter insecurely mounted to its housing \|2.5.C.1a\|	46
Offside Rear Wheel nut\|s\| missing \|4.2.A.1e\|	46
Supplementary restraint system warning lamp indicates a fault \|7.1.6 \|a\|\|	45
Nearside Front Outer Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	45
Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))	44
Emissions not tested \|7.3.A.1\|	43
Offside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	42
Nearside Front constant velocity joint gaiter insecure to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	42

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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MOT History from tests of petrol MG ZSs year 2004

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