DVSA Statistics
1984 Ford Sierra
MOT Pass Rate & Pre-MOT Checklist
Used 1984 Ford Sierras usually pass their MOT, but around 1 in 7 still fail, most often for a tyre seriously damaged, tyre tread depth not in accordance with the requirements and a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Based on 160 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 160 DVSA anonymised MOT tests · About this data
Pass Rate
86.3%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Parts Available
Worn tyres are a safety issue and common MOT fail.
Based on DVSA statistics from 160 recorded tests.
Pre-MOT Checklist for 1984 Ford Sierra
Based on common failure points for this model, check these items before your MOT:
- 1
Check tyre tread depth is at least 1.6mm across the central 3/4 of the tyre
Tyres – Common fail on this model
- 2
Test all headlights work and aim is correct - check for condensation inside
Lighting – Common fail on this model
- 3
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Ford Sierra.
Frequently Asked Questions
Is a 1984 Ford Sierra likely to fail its MOT?
Based on DVSA statistics, the 1984 Ford Sierra has a 86.3% MOT pass rate. This is above average, indicating good reliability for a vehicle of this age.
What are the most common MOT failures on a 1984 Ford Sierra?
The most common MOT failure reasons for a 1984 Ford Sierra are: a tyre seriously damaged, tyre tread depth not in accordance with the requirements, a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1984 Ford Sierra fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: a tyre seriously damaged, tyre tread depth not in accordance with the requirements, a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1984 Ford Sierras fail their MOT?
Around 14% of 1984 Ford Sierras fail their MOT test, meaning roughly 1 in 7 don't pass first time. The most common reasons are a tyre seriously damaged and tyre tread depth not in accordance with the requirements. Pre-checking these items can significantly improve your chances.
What should I check before my 1984 Ford Sierra MOT?
Before your 1984 Ford Sierra MOT, check these commonly-failed items: a tyre seriously damaged, tyre tread depth not in accordance with the requirements, a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. 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 1984 Ford Sierra reliable for MOT?
With a 86.3% MOT pass rate, the 1984 Ford Sierra performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.