How to appeal an MOT result
If you think a fail was wrong, you can appeal to the DVSA. Complete the official complaint form and send it within 14 working days of the test, and crucially do not have the car repaired before it is re-inspected, or you lose the evidence. The DVSA aims to contact you within 5 working days and may arrange a re-inspection. You pay the test fee again for that inspection and it is refunded if your appeal succeeds.
Most MOT results are clear cut, but now and then a driver is convinced their car was failed unfairly. If that happens to you, there is a proper route: you can appeal to the DVSA, the body that oversees MOT testing. The process is straightforward, but it has two rules that catch people out, a strict time limit and a ban on repairing the car first. Get those right and the appeal is simple.
When it makes sense to appeal
An appeal is worthwhile when you genuinely believe the tester got it wrong, for example if you think an item was marked as a fail that should have passed, or the fault they describe does not match the car. It is not a way to argue with a fair result, and it is not for challenging the cost of repairs. If your disagreement is really about price or service rather than the decision itself, a conversation with the garage is usually the better first step.
It is also worth being clear eyed about the outcome. A re-inspection can confirm the original fail, in which case you have spent the test fee for nothing. So appeal when you have a real reason to think the result is wrong, not just because a fail is inconvenient.
Step one: do not repair the car
This is the single most important rule. You should not have any repairs made until the appeal process has finished. The whole point of the re-inspection is to check whether the car really did fail on the item in question, and if you have already fixed it there is nothing left to check. Repairing the fault first effectively cancels your own appeal, so leave the car exactly as it was when it failed.
Step two: complete the complaint form in time
You appeal by filling in the official DVSA complaint form and sending it to the DVSA within 14 working days of the test. The 14 working day limit is firm, so do not sit on it. Set out clearly which item you are disputing and why you believe the decision was wrong, and keep a copy of anything you send. The sooner you submit it, the sooner the process can start.
Step three: the DVSA gets in touch
Once your form is in, the DVSA aims to contact you within 5 working days to discuss the appeal. If they decide a re-inspection is appropriate, they will arrange for the car to be examined, and you will be given a report setting out what is found. Because you have kept the car unrepaired, the examiner can look at the exact condition the original tester saw.
What it costs, and when you get it back
If the DVSA re-inspects the car, you pay the full test fee again for that inspection. If your appeal is successful, that fee is refunded to you. In other words, a well founded appeal that you win costs you nothing in the end, while an appeal that is not upheld does carry the cost of the re-inspection. That refund arrangement is designed to make it fair to challenge a genuine mistake without encouraging appeals that have little chance.
| What you are appealing | Deadline to complain | Pay the test fee again? |
|---|---|---|
| A fail you think is wrong | Within 14 working days of the test | Yes, refunded if you win |
| A pass you think should have failed (corrosion) | Within 3 months of the MOT | No |
| A pass you think should have failed (other defects) | Within 28 days of the MOT | No |
Appealing a pass you disagree with
The appeal route works the other way too. If you have bought or own a car that passed its MOT but you believe should have failed, perhaps because you have found a serious fault, you can raise it with the DVSA using the same complaint form. The time limits differ: generally within three months of the MOT for a corrosion related problem, or within 28 days for other defects. In this case you do not have to pay the test fee again for the re-inspection.
Talk to the garage first, if you can
Before you start a formal appeal, it is often worth a calm word with the test centre. Ask them to walk you through the exact item that failed and the reason for it. Sometimes what looks like a harsh decision is a clear cut fault once it is explained, and understanding why cars fail their MOT can help you judge whether the call was reasonable. If the explanation does not add up, the formal appeal is there as your backstop.
What to do while you wait
Remember that a failed MOT has consequences for driving the car in the meantime. If the previous MOT has also run out, you are very limited in where you can legally drive, which our guide on what happens if your MOT runs out explains. Leave the car unrepaired for the re-inspection, but do not drive it in a way that breaks the rules while your appeal is being sorted.
The bottom line
If you think an MOT fail was wrong, you have a clear right to challenge it. Do not touch the car, send the DVSA complaint form within 14 working days, and let the re-inspection decide. Win, and your fee comes back. It is a fair, no nonsense process, and knowing what a test should and should not cost, which our guide on how much an MOT should cost covers, helps you tell a genuine problem from a simple disagreement. If you need a fresh test, comparing a few local garages is the easiest place to start.
Key takeaways
- You appeal a failed MOT by sending the DVSA complaint form within 14 working days of the test.
- Do not repair the car before the re-inspection, or the evidence for your appeal is gone.
- The DVSA aims to make contact within 5 working days to discuss the appeal.
- You pay the test fee again for the re-inspection, and it is refunded if your appeal is upheld.
Frequently asked questions
How long do I have to appeal a failed MOT?
You need to complete the complaint form and send it to the DVSA within 14 working days of the test. Miss that window and the appeal route usually closes, so act quickly if you think the result is wrong.
Can I repair the car while I appeal?
No, and this is the most important point. You should not have any repairs made until the appeal process has finished. If you fix the fault first, the re-inspection cannot check whether the original decision was correct, and your appeal falls apart.
Does the appeal cost anything?
If the DVSA decides to re-inspect the car, you pay the full test fee again for that inspection. If your appeal is successful, that fee is refunded. So a well founded appeal costs you nothing in the end, while a weak one does have a cost.
Can I appeal a pass I disagree with?
Yes. If you think a car should have failed, you can still complain to the DVSA. The time limits are different, generally within three months of the MOT for a corrosion related problem, or within 28 days for other defects, and you do not have to pay the test fee again for that re-inspection.