DVSA Statistics
1989 Porsche 928 S
MOT Pass Rate & Pre-MOT Checklist
Used 1989 Porsche 928 Ss usually pass their MOT, but around 1 in 7 still fail, most often for fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning and the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Based on 82 MOT tests from DVSA data, this page shows how this model performs and what to check before your test.
Pass Rate
Based on 82 DVSA anonymised MOT tests · About this data
Pass Rate
86.6%
Higher than average
Top Failure Reasons
Common MOT failures for this model
Quick DIY Fix
Indicator bulbs are quick and cheap to replace.
Based on DVSA statistics from 82 recorded tests.
Pre-MOT Checklist for 1989 Porsche 928 S
Based on common failure points for this model, check these items before your MOT:
- 1
Test all indicators flash at the correct rate - check front, rear, and side repeaters
Lighting – Common fail on this model
- 2
Listen for knocks or clunks when driving over bumps - bounce each corner
Suspension – Common fail on this model
- 3
Test brakes for effectiveness, pull, and unusual noises when driving
Brakes – Common fail on this model
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Frequently Asked Questions
Is a 1989 Porsche 928 S likely to fail its MOT?
Based on DVSA statistics, the 1989 Porsche 928 S has a 86.6% 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 S?
The most common MOT failure reasons for a 1989 Porsche 928 S are: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. 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 S fails its MOT?
To improve your chances of passing, check the items that commonly fail on this model: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. Use our pre-MOT checklist above to identify potential issues before your test. Many common failures are easy DIY fixes.
How many 1989 Porsche 928 Ss fail their MOT?
Around 13% of 1989 Porsche 928 Ss fail their MOT test, meaning roughly 1 in 8 don't pass first time. The most common reasons are fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users and a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning. Pre-checking these items can significantly improve your chances.
What should I check before my 1989 Porsche 928 S MOT?
Before your 1989 Porsche 928 S MOT, check these commonly-failed items: fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users, a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. 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 S reliable for MOT?
With a 86.6% MOT pass rate, the 1989 Porsche 928 S performs above average compared to typical vehicles. This suggests good overall condition for a vehicle of this age.