MOT History from tests of petrol CORVETTE C4s year 1990

Review the list of common CORVETTE C4 failures below or to perform a specific mot history check on your CORVETTE then use our popular KnowYourCar service

mot history

Pass percent:25.00%

(The average a petrol CORVETTE C4 year 1990 passes without issue)

Based on:8 MOT Tests

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	3
Headlamp aim out of alignment	3
Registration plate issues	2
Rear parking brake recording little or no effort	2
Rear fog lamp missing \|1.3.2a\|	2
Offside Side repeater not working \|1.4.A.2c\|	2
Anti-lock braking system warning lamp indicates an ABS fault	2
Horn not working \|1.6.2a\|	2
Front Steering arm has relative movement at its fixings both \|2.2.B.1h\|	1
Nearside Rear Direction indicator not working \|4.4.1 \|a\| \|ii\|\|	1
Nearside Front Upper Suspension component ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	1
Offside Front Upper Suspension component ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	1
Nearside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	1
Nearside Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	1
Offside Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	1
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Front Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` \|8.3.1b\|	1
Front Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	1
Nearside Inner Rear Stop lamp not working \|1.2.1b\|	1
Offside Rear fog lamp missing \|1.3.2a\|	1
Rear fog lamp switch missing \|1.3.1a\|	1
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Rear Exhaust system not adequately supported \|7.1.1\|	1
Rear Exhaust system not adequately supported \|7.1.1\|	1
Brake performance not tested \|3.7.A.1\|	1
Service brake: efficiency below requirements \|3.7.C.1a\|	1
Parking brake: efficiency below requirements \|3.7.C.1b\|	1
Front Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	1
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Nearside Inner Stop lamp not working \|1.2.1b\|	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
Parking brake: efficiency below requirements \|3.7.B.7\|	3
Headlamp aim out of alignment	3
Registration plate issues	2
Rear parking brake recording little or no effort	2
Rear fog lamp missing \|1.3.2a\|	2
Offside Side repeater not working \|1.4.A.2c\|	2
Anti-lock braking system warning lamp indicates an ABS fault	2
Horn not working \|1.6.2a\|	2
Front Steering arm has relative movement at its fixings both \|2.2.B.1h\|	1
Nearside Rear Direction indicator not working \|4.4.1 \|a\| \|ii\|\|	1
Nearside Front Upper Suspension component ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	1
Offside Front Upper Suspension component ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	1
Nearside Front Upper Suspension arm has excessive play in a ball joint \|2.4.G.2\|	1
Nearside Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	1
Offside Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	1
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Front Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` \|8.3.1b\|	1
Front Headlamp aim aimed so that it dazzles other road users \|1.8.A.1a\|	1
Nearside Inner Rear Stop lamp not working \|1.2.1b\|	1
Offside Rear fog lamp missing \|1.3.2a\|	1
Rear fog lamp switch missing \|1.3.1a\|	1
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Rear Exhaust system not adequately supported \|7.1.1\|	1
Rear Exhaust system not adequately supported \|7.1.1\|	1
Brake performance not tested \|3.7.A.1\|	1
Service brake: efficiency below requirements \|3.7.C.1a\|	1
Parking brake: efficiency below requirements \|3.7.C.1b\|	1
Front Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	1
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Nearside Inner Stop lamp not working \|1.2.1b\|	1

MOT History from tests of petrol CORVETTE C4s year 1990

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