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MOT History from tests of petrol JAGUAR XJ12s year 1978

Review the list of common JAGUAR XJ12 failures below or to perform a specific mot history check on your JAGUAR then use our popular KnowYourCar service

mot history
Pass percent:64.75%
(The average a petrol JAGUAR XJ12 year 1978 passes without issue)
Based on:139 MOT Tests
Most common failuresNo# failures
Parking brake: efficiency below requirements |3.7.B.7|10
Registration plate lamp issues6
Windscreen wiper does not clear the windscreen effectively6
Headlamp aim out of alignment5
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|5
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Offside Headlamp not working on main beam |1.7.5a|4
Parking brake lever has no reserve travel |3.1.6b|4
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Horn not working |1.6.2a|3
Rear parking brake recording little or no effort3
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|3
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|2
Offside Front position lamp|s| not working |1.1.A.3b|2
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|2
Stop lamp not working |1.2.1b|2
Brake pipe excessively corroded2
Offside Fuel cap/sealing device sealing washer deteriorated |7.2.4c|2
Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Parking brake: efficiency below requirements |3.7.C.1b|2
Power steering pipe|s| or hose|s| leaking |2.3.3b|2
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Steering rack gaiter split |2.2.D.2d|2
Rear brake binding2
Service brake: efficiency below requirements |3.7.B.7|2
Registration plate issues2
Nearside Stop lamp not working |1.2.1b|2
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Offside Front Stop lamp not working |1.2.1b|1
Nearside Front Stop lamp not working |1.2.1b|1
Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b|1
Nearside Indicator tell tale inoperative |1.4.A.2a|1
Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Inner Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Lower Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Front Headlamp not working on main beam |1.7.5a|1
Nearside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Hazard warning switch faulty |1.4.B.1d|1
Nearside Front front brake binding |3.7.B.1|1
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Power steering malfunctioning |2.3.3a|1
Front Upper Front suspension ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Front Seat belt retracting mechanism defective |5.2.5b|1
Offside Front Seat belt retracting mechanism defective |5.2.5b|1
Nearside Rear position lamp|s| not working |1.1.A.3b|1
Offside Front Upper Front suspension ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Exhaust engine idle speed too high |7.3.A.2a|1
Nearside Rear Fuel pipe leaking |7.2.3|1
Nearside front brake binding |3.7.B.1|1
Direction indicators not working |1.4.A.2c|1
Front Windscreen wiper not operating automatically when switched on |8.2.1b|1
Nearside Obligatory mirror insecure |8.1.1|1
Offside Front Direction indicator not working |1.4.A.2c|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Steering rack gaiter insecure |2.2.D.2d|1
Fuel tank leaking |7.2.3|1
Nearside Front brake disc excessively pitted |3.5.1h|1
Offside Front brake disc excessively pitted |3.5.1h|1
Nearside Rear brake disc excessively pitted |3.5.1h|1
Offside Rear brake disc excessively pitted |3.5.1h|1
Windscreen has damage1
Brake pedal creeps down while the pedal is held under pressure |3.3.B.1a|1
Offside Rear Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1|1
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Rear Fuel pipe insecure |7.2.1|1
Offside front brake binding |3.7.B.1|1
Nearside Rear An item not tested |Manual|1
Offside Rear An item not tested |Manual|1
Driver`s seat insecure |6.2.A.1|1
Nearside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|1
Offside Front suspension has excessive play in a upper suspension ball joint |2.5.B.1a|1
Nearside Upper Ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Upper Ball joint has excessive play |2.2.B.1f|1
Offside Front Lower Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Shock absorber has a serious fluid leak |2.7.3|1
Nearside Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Front Direction indicator not working |1.4.A.2c|1
Offside Front front brake binding |3.7.B.1|1
Nearside Front Suspension arm attachment bracket/mounting insecure |2.4.G.1|1
Rear Exhaust has part of the system excessively deteriorated |7.1.1a|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Windscreen wiper blade insecure1
Nearside Fuel cap/sealing device sealing washer deteriorated |7.2.4c|1
Brake performance not tested |3.7.A.1|1
Emissions not tested |7.0|1
Nearside Windscreen wiper blade missing |8.2.2|1
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|1
rear brake juddering severely |3.7.A.5b|1
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|1
Nearside Headlamp not working on main beam (1.7.5a)1

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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