MOT History from tests of petrol MG ZSs year 2003

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:61.22%

(The average a petrol MG ZS year 2003 passes without issue)

Based on:42,688 MOT Tests

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	3134
Headlamp aim out of alignment	3017
Windscreen wiper does not clear the windscreen effectively	2694
Rear parking brake recording little or no effort	1808
Brake pipe excessively corroded	1274
Brakes imbalanced across an axle	1068
Offside Stop lamp not working \|1.2.1b\|	981
Registration plate lamp issues	897
Nearside Stop lamp not working \|1.2.1b\|	873
Rear brake binding	784
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits \|7.3.D.3\|	757
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	693
Registration plate issues	554
Exhaust has a major leak of exhaust gases \|7.1.2\|	518
Supplementary Restraint System warning lamp indicates a fault \|5.4.2\|	481
Offside Rear Stop lamp not working \|1.2.1b\|	386
Offside Rear fog lamp not working \|1.3.2b\|	349
Offside Headlamp not working on dipped beam \|1.7.5a\|	330
Nearside Rear Stop lamp not working \|1.2.1b\|	328
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	318
Battery insecure \|1.9.1\|	311
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	304
Nearside Headlamp not working on dipped beam \|1.7.5a\|	303
Front brake disc in such a condition that it is seriously weakened	291
Rear brake disc in such a condition that it is seriously weakened	291
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	290
Offside front brake binding \|3.7.B.1\|	279
Nearside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	276
Emissions not tested \|7.0\|	276
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	266
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	257
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	241
Parking brake lever has no reserve travel \|3.1.6b\|	226
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	218
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	217
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	216
Front brake application uneven	212
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	211
Nearside front brake binding \|3.7.B.1\|	205
Offside Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	199
Rear brake application uneven	192
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\|	189
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	176
Brake hose excessively deteriorated	171
Exhaust emissions carbon monoxide content after 2nd fast idle excessive \|7.3.D.3\|	167
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\|	160
Nearside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	158
Parking brake efficiency below requirements (1.4.2 (a) (i))	147
Service brake: efficiency below requirements \|3.7.B.7\|	146
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	144
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	139
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	138
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	134
Windscreen has damage	131
Offside Front front brake binding \|3.7.B.1\|	128
Offside Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	128
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	125
Offside rear brake recording little or no effort \|3.7.B.5a\|	123
Nearside Front constant velocity joint gaiter split \|2.5.C.1a\|	122
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	120
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	119
Exhaust emissions carbon monoxide content at idle excessive \|7.3.D.4\|	117
Nearside rear brake recording little or no effort \|3.7.B.5a\|	114
Anti-lock braking system warning lamp indicates an ABS fault	113
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\|	111
Nearside Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	108
Mechanical brake component has restricted free movement	108
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\|	107
Nearside Rear passenger door cannot be opened from outside the vehicle \|6.2.B.1c\|	106
Parking brake efficiency below requirements \|1.4.2 \|a\| \|i\|\|	105
Offside Front constant velocity joint gaiter insecurely mounted to its housing \|2.5.C.1a\|	102
Offside Rear brake disc excessively pitted \|3.5.1h\|	101
Offside Rear Rear fog lamp not working \|1.3.2b\|	100
Offside Front constant velocity joint gaiter split \|2.5.C.1a\|	100
Horn not working \|1.6.2a\|	98
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	96
Rear Mechanical brake component has restricted free movement	90
Offside Rear passenger door cannot be opened from outside the vehicle \|6.2.B.1c\|	89
Windscreen wiper blade insecure	89
Exhaust emissions hydrocarbon content after 2nd fast idle excessive \|7.3.D.3\|	88
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\|	87
Nearside Rear brake disc excessively pitted \|3.5.1h\|	85
Nearside Front front brake binding \|3.7.B.1\|	83
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\|	83
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	83
Nearside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	83
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	82
Offside Front coil spring broken \|2.4.C.1a\|	82
Offside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	73
Rear fog lamp not working \|1.3.2b\|	71
Offside Front Anti-lock braking system component excessively damaged \|3.4.2\|	71
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	70
Front Exhaust system not adequately supported \|7.1.1\|	69
Offside Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	67
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	66
Offside Rear wheel bearing rough when rotated \|2.6.1\|	66
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\|	65
Rear brake disc excessively pitted \|3.5.1h\|	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\|	64
Nearside Front constant velocity joint gaiter insecurely mounted to its housing \|2.5.C.1a\|	64
Nearside Front Anti-lock braking system component excessively damaged \|3.4.2\|	62
Nearside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	61
Nearside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	61
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	61
Nearside Front Front constant velocity joint gaiter split \|2.5.C.1a\|	61
Exhaust system not adequately supported \|7.1.1\|	61
Driver`s seat insecure \|6.2.A.1\|	60
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	60
Offside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	59
Front brake excessively fluctuating	58
Rear fog lamp tell tale not working \|1.3.1b\|	55
Nearside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	54
Offside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	54
Rear Exhaust system not adequately supported \|7.1.1\|	54
Emissions not tested \|7.3.A.1\|	54
Offside Front coil spring fractured \|2.4.C.1a\|	53
Offside Front Front constant velocity joint gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc \|2.5.C.1a\|	53
Nearside Rear Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	51

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.

MOT History from tests of petrol MG ZSs year 2003

Find us on Facebook