DVSA Statistics
1989 Porsche 928
MOT Pass Rate & Pre-MOT Checklist
There isn't much MOT data yet for the 1989 Porsche 928 (only 33 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 33 DVSA anonymised MOT tests · About this data
Pass Rate
87.9%
Higher than average
Limited data available for this model; results may be less representative.
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Headlight bulbs are a common MOT fail. Easy DIY replacement.
Based on DVSA statistics from 33 recorded tests.
Pre-MOT Checklist for 1989 Porsche 928
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
Check exhaust for leaks, holes, or excessive corrosion - listen for blowing
Exhaust – Common fail on this model
- 3
Test all headlights work and aim is correct - check for condensation inside
Lighting – Common fail on this model
- 4
Check windscreen for chips or cracks in the driver view zone (Zone A)
Visibility – Common fail on this model
How Does This Compare to Other Years?
Previous Year
1988 Porsche 928
Based on 2 UK MOT tests
Next Year
1990 Porsche 928
Based on 20 UK MOT tests
The 1989 model shows improvement over 1988 but the 1990 model has an even better pass rate.
Why Trust This Data?
Official UK Government Source
This data comes from the UK's Driver and Vehicle Standards Agency (DVSA), the official body responsible for MOT testing standards. The anonymised MOT test data is published via data.gov.uk.
Understanding the Statistics
This page is based on 33 MOT tests from the 2023 DVSA dataset. Your 1989 Porsche 928 was 34 years old when this data was collected and is now 37 years old.
Sample Size
Limited data - 33 tests (use as rough guide only)
Limitations
Statistics reflect average outcomes and don't account for maintenance history, mileage, or regional variations. Individual results will vary based on how well a vehicle has been maintained.
Do you own this car?
Check your specific vehicle for outstanding advisories or recalls. Get a personalized risk report for your exact Porsche 928.
Frequently Asked Questions
Is a 1989 Porsche 928 likely to fail its MOT?
Based on DVSA statistics, the 1989 Porsche 928 has a 87.9% 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 1989 Porsche 928?
The most common MOT failure reasons for a 1989 Porsche 928 are: emissions levels exceed default limits, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. Many of these can be checked and fixed before your test to improve your chances of passing.
How can I reduce the chance my 1989 Porsche 928 fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: emissions levels exceed default limits, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1989 Porsche 928s fail their MOT?
Around 12% of 1989 Porsche 928s fail their MOT test, meaning roughly 1 in 8 don't pass first time. The most common reasons are emissions levels exceed default limits and exhaust system leaking or insecure. Pre-checking these items can significantly improve your chances.
What should I check before my 1989 Porsche 928 MOT?
Before your 1989 Porsche 928 MOT, check these commonly-failed items: emissions levels exceed default limits, exhaust system leaking or insecure, the aim of a headlamp is not within limits laid down in the requirements. 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 1989 Porsche 928 reliable for MOT?
With a 87.9% MOT pass rate, the 1989 Porsche 928 performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.