MOT History from tests of petrol MZ MZs year 1979

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

mot history

Pass percent:88.51%

(The average a petrol MZ MZ year 1979 passes without issue)

Based on:296 MOT Tests

Most common failures	No# failures
Horn not working \|1.7.3a\|	4
Headlamp aim out of alignment	4
Registration plate issues	3
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	3
Brake lever has inadequate reserve travel \|3.1.3b\|	2
Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Direction indicators not working \|1.5.1c\|	2
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	2
Nearside Direction indicators not working \|1.5.1c\|	2
Rear Stop lamp not working (4.3.1 (a) (ii))	1
Upper Direction indicator not working \|1.5.1c\|	1
Brake locking device missing \|3.2.A1e\|	1
Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort \|3.3.A1c\|	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Offside Front Direction indicator not working \|1.5.1c\|	1
Offside Front Direction indicators not working \|1.5.1c\|	1
Nearside Direction indicator not working \|1.5.1c\|	1
Offside Direction indicator not working \|1.5.1c\|	1
Nearside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Rear Wheel has an excessively distorted bead rim. \|4.2.2\|	1
Front Brake component is severely distorted \|3.1.5\|	1
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Nearside Front Direction indicator not working \|1.5.1c\|	1
Direction indicators flashing more than 120 times per minute \|1.5.1c\|	1
Front Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	1
Front Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Nearside Front Headlamp switch faulty \|1.2.4\|	1
Rear shock absorber insecurely mounted \|2.4.A.3b\|	1
Direction indicator flashing more than 120 times per minute \|1.5.1c\|	1
Front Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	1
Steering control handlebar movement restricted by cables caught on a projection \|2.1.2c\|	1
Horn not working (7.7 (a) (ii))	1
All direction indicators not working (4.4.1 (a) (ii))	1
Brake pedal has inadequate reserve travel \|3.1.3b\|	1
Rear Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	1
Nearside Indicator tell tale not functioning \|1.5.2\|	1
Offside Indicator tell tale not functioning \|1.5.2\|	1
Offside Rear Direction indicator not working \|1.5.1c\|	1
Offside Direction indicators not working \|1.5.1c\|	1
Front suspension has inadequate damping effect. \|2.3.6c\|	1
Floor brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.C1b\|	1
Fuel cap sealing washer missing \|7.2.2c\|	1
Throttle has a significant change in engine speed whilst moving the steering from lock to lock \|2.1.4\|	1
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Horn not working \|1.7.3a\|	4
Headlamp aim out of alignment	4
Registration plate issues	3
Stop lamp does not illuminate immediately a brake applies \|1.3.1a\|	3
Brake lever has inadequate reserve travel \|3.1.3b\|	2
Exhaust is leaking and excessively noisey \|7.1.1b\|	2
Direction indicators not working \|1.5.1c\|	2
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	2
Nearside Direction indicators not working \|1.5.1c\|	2
Rear Stop lamp not working (4.3.1 (a) (ii))	1
Upper Direction indicator not working \|1.5.1c\|	1
Brake locking device missing \|3.2.A1e\|	1
Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort \|3.3.A1c\|	1
Roller brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.A2b\|	1
Offside Front Direction indicator not working \|1.5.1c\|	1
Offside Front Direction indicators not working \|1.5.1c\|	1
Nearside Direction indicator not working \|1.5.1c\|	1
Offside Direction indicator not working \|1.5.1c\|	1
Nearside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Rear suspension bush has excessive free play \|2.4.A2a\|i\|\|	1
Rear Wheel has an excessively distorted bead rim. \|4.2.2\|	1
Front Brake component is severely distorted \|3.1.5\|	1
Offside Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Nearside Front Direction indicator not working \|1.5.1c\|	1
Direction indicators flashing more than 120 times per minute \|1.5.1c\|	1
Front Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	1
Front Headlamp at least one does not illuminate on main beam \|1.2.2a\|ii\|\|	1
Nearside Front Headlamp switch faulty \|1.2.4\|	1
Rear shock absorber insecurely mounted \|2.4.A.3b\|	1
Direction indicator flashing more than 120 times per minute \|1.5.1c\|	1
Front Front position lamp does not illuminate immediately when switched on \|1.1.3a\|	1
Steering control handlebar movement restricted by cables caught on a projection \|2.1.2c\|	1
Horn not working (7.7 (a) (ii))	1
All direction indicators not working (4.4.1 (a) (ii))	1
Brake pedal has inadequate reserve travel \|3.1.3b\|	1
Rear Roller brake test indicates excessive fluctuation of brake effort \|3.3.A1d\|	1
Nearside Indicator tell tale not functioning \|1.5.2\|	1
Offside Indicator tell tale not functioning \|1.5.2\|	1
Offside Rear Direction indicator not working \|1.5.1c\|	1
Offside Direction indicators not working \|1.5.1c\|	1
Front suspension has inadequate damping effect. \|2.3.6c\|	1
Floor brake test The less effective brake control does not achieve an efficiency of 25%. \|3.3.C1b\|	1
Fuel cap sealing washer missing \|7.2.2c\|	1
Throttle has a significant change in engine speed whilst moving the steering from lock to lock \|2.1.4\|	1
Headlamp at least one does not illuminate on dipped beam \|1.2.2a\|i\|\|	1

MOT History from tests of petrol MZ MZs year 1979

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