DVSA Statistics
1981 BMW 635
MOT Pass Rate & Pre-MOT Checklist
There isn't much MOT data yet for the 1981 BMW 635 (only 5 tests in our DVSA dataset), so these figures are a rough guide. We still highlight common failure items below so you can check before your MOT.
Pass Rate
Based on 5 DVSA anonymised MOT tests · About this data
Pass Rate
60%
About average
Limited data available for this model; results may be less representative.
Top Failure Reasons
Common MOT failures for this model
Parts Available
Brakes are a common wear item.
Based on DVSA statistics from 5 recorded tests.
Pre-MOT Checklist for 1981 BMW 635
Based on common failure points for this model, check these items before your MOT:
- 1
Ensure engine is at operating temperature before test - take a good run beforehand
Emissions – Common fail on this model
- 2
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
- 3
Check windscreen for chips or cracks in the driver view zone (Zone A)
Visibility – Common fail on this model
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Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact BMW 635.
Frequently Asked Questions
Is a 1981 BMW 635 likely to fail its MOT?
Based on DVSA statistics, the 1981 BMW 635 has a 60% MOT pass rate. This is about average for vehicles of this age.
What are the most common MOT failures on a 1981 BMW 635?
The most common MOT failure reasons for a 1981 BMW 635 are: emissions levels exceed default limits, brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., windscreen washers not working or not providing sufficient fluid to clear the windscreen. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1981 BMW 635 fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: emissions levels exceed default limits, brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., windscreen washers not working or not providing sufficient fluid to clear the windscreen. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1981 BMW 635s fail their MOT?
Around 40% of 1981 BMW 635s fail their MOT test, meaning roughly 1 in 3 don't pass first time. The most common reasons are emissions levels exceed default limits and brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle.. Pre-checking these items can significantly improve your chances.
What should I check before my 1981 BMW 635 MOT?
Before your 1981 BMW 635 MOT, check these commonly-failed items: emissions levels exceed default limits, brakes imbalance across an axle such that the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle., windscreen washers not working or not providing sufficient fluid to clear the windscreen. Most are visual checks you can do at home – look for worn tyres, test all lights work, and check for obvious damage or leaks.
Is the 1981 BMW 635 reliable for MOT?
With a 60% MOT pass rate, the 1981 BMW 635 performs about average compared to typical vehicles. This is typical performance for vehicles in this age bracket.