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MOT History from tests of petrol PORSCHE 911s year 1998

Review the list of common PORSCHE 911 failures below or to perform a specific mot history check on your PORSCHE then use our popular KnowYourCar service

mot history
Pass percent:79.70%
(The average a petrol PORSCHE 911 year 1998 passes without issue)
Based on:28,197 MOT Tests
Most common failuresNo# failures
Brake pipe excessively corroded1083
Headlamp aim out of alignment864
Registration plate lamp issues857
Registration plate issues425
Parking brake: efficiency below requirements |3.7.B.7|415
Windscreen wiper does not clear the windscreen effectively412
Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3|323
Rear parking brake recording little or no effort179
Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3|161
Offside Headlamp not working on dipped beam |1.7.5a|152
Horn not working |1.6.2a|152
Nearside Headlamp not working on dipped beam |1.7.5a|147
Service brake: efficiency below requirements |3.7.B.7|137
Offside Stop lamp not working |1.2.1b|119
Front brake disc in such a condition that it is seriously weakened119
Nearside Stop lamp not working |1.2.1b|116
Offside Front position lamp|s| not working |1.1.A.3b|112
Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4|99
Offside Front brake disc excessively pitted |3.5.1h|94
Anti-lock braking system warning lamp indicates an ABS fault93
Parking brake efficiency below requirements (1.4.2 (a) (i))84
Nearside Front position lamp|s| not working |1.1.A.3b|84
Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c))79
Nearside Front brake disc excessively pitted |3.5.1h|79
Offside Rear fog lamp not working |1.3.2b|72
Offside Rear Stop lamp not working |1.2.1b|65
Nearside Rear Stop lamp not working |1.2.1b|60
Offside Rear Direction indicator incorrect colour |1.4.A.2f|56
Brakes imbalanced across an axle55
Nearside Front Headlamp not working on dipped beam |1.7.5a|55
Nearside Rear Direction indicator incorrect colour |1.4.A.2f|54
Parking brake: efficiency below requirements |3.7.C.1b|52
Exhaust has a major leak of exhaust gases |7.1.2|50
Nearside Rear brake disc excessively pitted |3.5.1h|48
Offside Front Headlamp not working on dipped beam |1.7.5a|47
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|46
Offside Rear brake disc excessively pitted |3.5.1h|44
Nearside Headlamp not working on main beam |1.7.5a|43
Horn not working (7.7 (a) (ii))43
Rear fog lamp not working |1.3.2b|42
Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c||42
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|41
Windscreen washer not working 40
Offside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|38
Nearside Front Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|37
Offside Track rod end ball joint has excessive play |2.2.B.1f|37
Offside Headlamp not working on main beam |1.7.5a|36
Nearside Front Front position lamp|s| not working |1.1.A.3b|35
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|33
Supplementary Restraint System warning lamp indicates a fault |5.4.2|33
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|33
Offside Front Front position lamp|s| not working |1.1.A.3b|32
Front brake disc excessively pitted |3.5.1h|32
Parking brake efficiency below requirements |1.4.2 |a| |i||32
Nearside Headlamp aim beam image kick up to the offside |1.8|31
Rear brake binding31
Horn not working (7.7 (a))31
Offside Front Position lamp not working (4.2.1 (a) (ii))30
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))30
Offside Headlamp aim beam image kick up to the offside |1.8|30
Rear brake disc in such a condition that it is seriously weakened30
Nearside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|29
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|29
Nearside Track rod end ball joint has excessive play |2.2.B.1f|29
Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2|28
Rear fog lamp tell tale not working |1.3.1b|27
Offside Rear Exhaust has a major leak of exhaust gases |7.1.2|27
Offside Side repeater incorrect colour |1.4.A.2f|26
Offside Rear Shock absorber has a serious fluid leak |2.7.3|26
Service brake efficiency below requirements (1.2.2 (a) (i))26
Offside Front brake disc excessively scored |3.5.1h|25
Nearside Front Position lamp not working (4.2.1 (a) (ii))25
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))25
Exhaust emissions hydrocarbon content after 2nd fast idle excessive |7.3.D.3|25
Offside Rear Anti-roll bar linkage has excessive play in a ball joint |2.4.G.2|24
Parking brake lever has no reserve travel |3.1.6b|24
Nearside Rear position lamp|s| not working |1.1.A.3b|24
Horn not working |7.7 |a| |ii||23
Windscreen has damage23
Rear fog lamp not working (4.5.1 (a) (ii))22
Front brake excessively fluctuating22
Rear Exhaust has a major leak of exhaust gases |7.1.2|22
Nearside Front brake disc excessively scored |3.5.1h|21
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|20
Offside Rear position lamp|s| not working |1.1.A.3b|20
Rear brake disc excessively pitted |3.5.1h|19
Emissions not tested |7.0|18
Nearside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2|18
Front Windscreen wiper not operating automatically when switched on |8.2.1b|18
Offside Rear Anti-roll bar has excessive play in a pin/bush |2.4.G.2|18
Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b|18

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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