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MOT History from tests of petrol ROLLS ROYCE UNKNOWNs year 1978

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

mot history
Pass percent:72.00%
(The average a petrol ROLLS ROYCE UNKNOWN year 1978 passes without issue)
Based on:25 MOT Tests
Most common failuresNo# failures
Registration plate lamp issues3
Parking brake: efficiency below requirements |3.7.B.7|2
Brake fluid significantly below minimum mark |1.1.10 |d| |ii||1
Parking brake lever ratchet not holding correctly |1.1.6 |a||1
Nearside Rear Suspension unit modified so that its function is affected |5.3.5 |b| |i||1
Offside Rear Suspension unit modified so that its function is affected |5.3.5 |b| |i||1
Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii||1
Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii||1
Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Exhaust emissions hydrocarbon content excessive HC 2850 (8.2.1.2 (b))1
Windscreen washer not working 1
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))1
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings Sill |6.1.B.2|1
Service brake: efficiency below requirements |3.7.B.7|1
Nearside Front Braking system leaking caliper |3.6.A.1|1
Fuel system component leaking pump |7.2.3|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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