13/01/2002
The annual MOT test is a crucial part of ensuring your vehicle is roadworthy and safe. While passing is the ideal outcome, many drivers face the prospect of their car failing. When this happens, the question of a retest and its associated costs inevitably arises. Understanding the rules around MOT retests can save you money and a lot of hassle. This article delves into the specifics of MOT retests, focusing particularly on when you can expect a free retest and what happens if that's not the case.

- What is an MOT Retest?
- When is an MOT Retest Free?
- What Happens if You Don't Qualify for a Free Retest?
- The 10-Working-Day Rule Explained
- What If I Take My Car Elsewhere for Repairs?
- What If I Don't Get a Retest?
- Factors Affecting the Cost of a Paid Retest
- When is a Partial Retest Conducted?
- What You Need for a Retest
- Tips for a Successful MOT and Retest
- Common MOT Failures and Retest Considerations
- Frequently Asked Questions (FAQs)
- Conclusion
What is an MOT Retest?
An MOT retest is a follow-up inspection of your vehicle after it has failed its initial MOT test. It's designed to verify that the issues identified during the first test have been rectified and that the vehicle now meets the required safety and environmental standards. The purpose of a retest is to confirm that necessary repairs have been completed correctly.
When is an MOT Retest Free?
The good news for many motorists is that a free MOT retest is often a possibility. However, this is subject to specific conditions. A free MOT retest is typically offered when:
- You leave your vehicle at the test centre for repair and the retest is carried out within 10 working days of the original failure.
- You collect your vehicle and bring it back to the same test centre for a retest within 10 working days of the original failure.
It is essential to clarify with the test centre beforehand if they offer free retests and under what specific circumstances. Some garages may have their own policies that go beyond the minimum requirements.
What Happens if You Don't Qualify for a Free Retest?
If your vehicle doesn't meet the criteria for a free retest, or if you choose to have the repairs done elsewhere and return for a retest after the 10-working-day window, you will likely be charged for the retest. The cost of a paid MOT retest can vary significantly between test centres. Some garages might charge a reduced fee, while others may charge the full MOT test price again. It's always best to inquire about their specific pricing structure for retests when booking your initial MOT or when arranging for repairs.
The 10-Working-Day Rule Explained
The 10-working-day period is a critical factor in determining the cost of your MOT retest. This period begins on the day after your vehicle's original MOT test. If your car fails, you are given this timeframe to have the necessary repairs completed and then present the vehicle for a retest. 'Working days' generally exclude weekends and public holidays. It's crucial to be aware of this timeframe to ensure you don't miss out on a potential free retest.
What If I Take My Car Elsewhere for Repairs?
This is a common scenario. You might prefer to have your car repaired by your usual mechanic, or perhaps another garage offers a more competitive price for the repairs. In this situation, as long as you bring the car back to the original test centre for its retest within those 10 working days, you should still be eligible for a free retest. The key is returning to the same VOSA-approved testing station.
What If I Don't Get a Retest?
If your vehicle fails its MOT and you don't get a retest, you cannot legally drive it on public roads unless you are driving it to a pre-arranged MOT test appointment or to a place of repair. If the vehicle is not repaired and retested, you will need to book a full, new MOT test when you are ready. This means you will have to pay the full fee for a new MOT, which can be more expensive than a retest, especially if the test centre offers a discounted retest price.
Factors Affecting the Cost of a Paid Retest
Several factors can influence the price of a paid MOT retest:
- Garage Policy: Each MOT test centre sets its own prices for retests if they are not free.
- Type of Repairs: While the retest itself is a check, the complexity of the repairs might influence the labour charges if you have them done at the test centre.
- Time Elapsed: If more than 10 working days have passed since the original test, you will almost certainly have to pay for a full new MOT.
When is a Partial Retest Conducted?
In some cases, only a partial retest might be necessary. This typically happens when the issues found were minor and related to specific components. For instance, if only a headlight adjustment was needed, the retest might only involve checking that headlight. However, most common failures require a more comprehensive check of the areas that failed. The examiner will decide what is required for the retest.

What You Need for a Retest
When you bring your vehicle back for a retest, ensure you have the following:
- The original MOT failure certificate (VT30).
- Proof of the repairs carried out (invoices from the garage).
- Your vehicle's registration document (V5C).
While not always strictly required for the visual inspection itself, having these documents readily available can streamline the process and provide necessary information to the testing station.
Tips for a Successful MOT and Retest
To maximise your chances of passing your MOT and potentially avoiding retest fees:
- Pre-MOT Checks: Before taking your vehicle for its MOT, perform some basic checks yourself. Ensure your lights are all working, your tyres have adequate tread depth and are correctly inflated, your windscreen wipers and washers function, and your horn is operational.
- Regular Servicing: Keep up with your vehicle's regular servicing schedule. A well-maintained car is far more likely to pass its MOT.
- Check Tyre Pressures: Incorrect tyre pressures can affect handling and braking, leading to a fail.
- Top Up Fluids: Ensure all fluid levels, including screenwash, coolant, and brake fluid, are at the correct levels.
- Understand Common Failures: Familiarise yourself with the most common reasons for MOT failure, such as tyre condition, brake issues, and lighting faults.
Common MOT Failures and Retest Considerations
Understanding common failure points can help you prepare:
| Common Failure Area | Potential Retest Focus |
|---|---|
| Tyres (tread depth, damage, size) | Visual inspection of tyre condition and tread depth. |
| Brakes (performance, condition of discs/pads) | Brake performance test on rollers, inspection of brake components. |
| Lights (functionality, aim, condition) | Verification that all lights are working and correctly aimed. |
| Exhaust Emissions | Re-test of emissions to ensure they meet legal limits. |
| Suspension (worn components, damage) | Inspection of suspension parts for wear or damage. |
| Windscreen (visibility, damage) | Check for chips or cracks in the driver's line of sight. |
Frequently Asked Questions (FAQs)
Q1: Can I drive my car if it fails its MOT?
You can only drive your car if it has a pre-booked MOT test appointment or if you are driving it to a pre-arranged place of repair. Otherwise, driving an unroadworthy vehicle is illegal.
Q2: How long is an MOT certificate valid for?
An MOT certificate is typically valid for 12 months. However, if your vehicle fails, it is not considered roadworthy until it passes a retest.
Q3: What if the garage says I need a full new MOT instead of a retest?
This is usually only the case if more than 10 working days have passed since the original test, or if the original test centre does not offer retests or if you've taken the vehicle elsewhere for repairs and are returning outside the 10-day window. Always clarify the terms before you leave your vehicle.
Q4: What is the maximum charge for an MOT retest?
There is no statutory maximum charge for a paid MOT retest. The price is set by the individual test centre. However, many offer a partial retest for a reduced fee, or a full retest within 10 working days for free.
Q5: Does the retest cover all the items that failed?
Yes, the retest is designed to check that all the defects that caused the initial failure have been rectified. The specific components or systems that failed will be re-examined.
Conclusion
Understanding the nuances of MOT retests is key to managing your vehicle maintenance budget. While many drivers can benefit from a free MOT retest by adhering to the 10-working-day rule and using the same test centre, it's crucial to confirm the specifics with your chosen garage. Proactive checks and regular servicing are your best defence against MOT failures, saving you time, money, and the stress of unexpected repairs and retest fees.
If you want to read more articles similar to MOT Retest Costs Explained, you can visit the MOT category.
