MOT Retest · Free Test Rules

MOT Retest Rules UK

If your car fails its MOT, you may be entitled to a free retest — but the conditions are specific. This guide explains exactly when you qualify, how long you have, and what a partial retest involves.

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The short answer

MOT Retest Rules UK

A free MOT retest applies when: the car is left with the original test station for repairs, and is retested there before the end of the next working day. If you take the car away to repair elsewhere, a partial retest fee (approx. £14.50) applies if you return within 10 working days. After 10 working days, you pay the full test fee again.

The three scenarios

The Three Retest Scenarios

Free retest — £0

Repairs done by the same test station AND vehicle returned before end of next working day

Partial retest — ~£14.50

Repairs done elsewhere AND returned to same station within 10 working days of original test

Full retest — Full fee

More than 10 working days since original test, OR taken to a different test station

Partial retests

What Is a Partial Retest?

A partial retest only checks the items that caused the failure. If your car failed on a single brake issue and nothing else, only braking is retested. All the items that passed originally are carried forward. This makes a partial retest significantly quicker than a full test — typically 10–20 minutes rather than 45–60 minutes.

Only failed items are retested — passed items are not checked again

Partial retest is typically much quicker than a full test

The test station issues a new certificate if all retested items now pass

The 12-month certificate runs from the original test date, not the retest date

If more items fail at retest, additional repair and retesting is required

Timing reference

Timing Reference Guide

When you return	Where you go	Cost
Before end of next working day	Same station, repaired by them	Free
Before end of next working day	Same station, repaired elsewhere	Partial retest fee (~£14.50)
Within 10 working days	Same station, repaired anywhere	Partial retest fee (~£14.50)
After 10 working days	Any station	Full test fee (up to £54.85 for cars)
Any time	Different test station	Full test fee

Test fees are set by DVSA. The figures above are for cars (Class 4 vehicles) as of 2026. Motorcycles and commercial vehicles have different rates.

The DVSA Retest Framework Explained

The DVSA sets the rules for MOT retests. The framework is designed to be fair to both drivers and testing stations — it rewards you for getting repairs done quickly and at the same station, while allowing you to take the car elsewhere if you prefer. Understanding the three retest tiers helps you minimise cost and avoid paying for a full second test.

Retest tier	Conditions	Fee	What's checked
Free retest	Repairs done by the same station + returned before end of next working day	£0	Only the failed items
Partial retest	Returned to same station within 10 working days (repairs done anywhere)	~half the full fee	Only the failed items
Full retest	After 10 working days, OR taken to a different station	Full fee (up to £54.85)	Full test — all items rechecked

Source: DVSA MOT inspection manual and retest regulations. The partial retest fee is approximately half the full test fee and varies by vehicle class.

The strategy that saves you money

If the failure is minor (a blown bulb, a wiper blade), ask the test centre to fix it immediately and retest the same day — this is usually free. For larger repairs, you have 10 working days to return to the same station for a partial retest at roughly half the full fee. Only use a different station if you're unhappy with the first one — you'll pay the full fee again.

Driving Between Failure and Retest: The Legal Position

One of the most common questions after an MOT failure is: "Can I still drive the car?" The answer depends on two things — whether your previous MOT is still valid, and whether the failure included a Dangerous defect.

Situation	Can you drive?	Conditions
Previous MOT still valid + Major failure only	Yes — until expiry date	Must repair and pass retest before expiry
Previous MOT still valid + Dangerous defect	No — under any circumstances	Must repair on-site or recover; cannot drive
Previous MOT expired + Major failure only	No — illegal to drive	Must repair; can drive to pre-booked retest
Previous MOT expired + Dangerous defect	No — under any circumstances	Must repair on-site or recover; cannot drive

The Dangerous defect rule is absolute

If your failure notice includes a Dangerous defect, you cannot drive the car — period. Not to a repair garage, not home, not anywhere. The car must be repaired on-site or recovered. Driving with a documented Dangerous defect can invalidate your insurance and carries a fine of up to £2,500, three penalty points, and possible disqualification. See our dangerous defects guide.

For the full legal position on driving without an MOT, see our driving without MOT guide and MOT rules guide.

Retest Scenarios by Defect Category

Different defect categories have different retest implications. Here's what to expect based on what failed:

Defect category on failure	Retest scope	Typical repair time
Lighting (blown bulb)	Only the specific light retested	5–15 minutes (DIY or garage)
Tyre (tread below 1.6mm)	Only the replaced tyre retested	30 minutes (garage fitting)
Brake pads (below 1.5mm)	Brake efficiency retested	1–2 hours (garage)
Suspension (bush/spring)	Suspension component retested	1–3 hours (garage)
Emissions (cat/DPF/lambda)	Emissions retested	Varies — sensor 30 min; cat/DPF 2–4 hours
Windscreen (chip/crack in Zone A)	Windscreen condition retested	30 min chip repair; 1 hour replacement
Multiple defects across categories	All failed items retested	Depends on combination

How to Appeal an MOT Failure

If you believe your car was unfairly failed, you can appeal the result through the DVSA's formal appeal process. The appeal must be lodged within 14 working days of the test. Here's how it works:

Step	Action	Timeline
1	Request a copy of the failure sheet from the test station	Immediately
2	Contact DVSA to lodge an appeal (form VT17)	Within 14 working days of the test
3	DVSA arranges a retest by a DVSA examiner	Within ~5 working days
4	DVSA examiner inspects the vehicle	At an agreed location
5	DVSA issues a decision	Typically within 5–10 working days of inspection

Appeal fee and refund

There is a fee for appealing an MOT result (currently around half the full MOT fee). If you win the appeal, the fee is refunded. If you lose, you forfeit the fee and must still repair the failed items. Appeals are most successful when the failure was borderline or the tester made a clear error — not when the defect is genuinely present.

Practical Retest Scenarios

"My car failed on a blown bulb — what's the cheapest fix?"

Ask the test centre to replace the bulb and retest the same day. Most stations do this for free (you pay only for the bulb, £5–£25). If they charge a retest fee, take the car to a motor factor, buy the bulb for £5, fit it yourself, and return within 10 working days for a partial retest at roughly half the full fee.

"My car failed on brake pads — should I use the test centre or an independent?"

Get quotes from both. Test centres sometimes offer "free retest if we do the repairs" deals — but their repair prices may be higher than an independent. Compare: test centre brake pad replacement (£150–£200 + free retest) vs independent (£80–£120 + £14.50 partial retest). The independent is often cheaper even with the retest fee. See our MOT failure costs guide.

"I disagree with the failure — what can I do?"

Request a copy of the failure sheet and contact the DVSA to lodge an appeal (form VT17) within 14 working days. A DVSA examiner will retest the vehicle. If you win, the appeal fee is refunded. See the appeal process above.

Related MOT Guides & Tools

MOT Status Checker →

Check current MOT validity

MOT History Checker →

Full 30-year DVSA record

MOT Test Cost →

Maximum fees & retest costs

MOT Failure Costs →

Full repair cost guide

MOT Failure Reasons →

Why cars fail the MOT

Dangerous MOT Defects →

When you can't drive

Pre-MOT Checklist →

Prevent failures first time

MOT Rules Guide →

Complete UK MOT law

Driving Without MOT →

The legal position

MOT Due Date Check →

Find your exact due date

MOT Advisories Explained →

Minor vs Major vs Dangerous

MOT Exempt Cars →

Which cars don't need an MOT

Sources: DVSA MOT inspection manual (retest regulations and appeal process); DVSA MOT testing guidance; Road Traffic Act 1988 (driving offences). Always verify critical information directly with the relevant official source.

Check MOT History Before Any Repair

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Questions & answers

Frequently Asked Questions

Is an MOT retest free?

A retest is free if: the repairs are carried out by the test station, the vehicle is retested at the same station, and it is returned for retest before the end of the next working day after the original test. Outside these conditions, a partial retest fee (around £14.50 in 2026) or even a full test fee may apply.

How long do I have to get an MOT retest?

If you leave the car with the test station for repairs, or return for retest by the end of the next working day, a free retest is available. If you take the car away to repair elsewhere and return within 10 working days of the original test, a partial retest fee applies. After 10 working days, a full test and fee are required.

Can I drive the car between failure and retest?

Only if the car's previous MOT certificate is still valid and the failure was not for a 'dangerous' defect. A dangerous defect means the car must not be driven. For a major failure, it is technically roadworthy only while the old cert is in date. Check with the test station — many will advise you directly.

What is retested in a partial retest?

Only the items that caused the failure are retested in a partial retest. Everything else that passed originally does not need to be rechecked. This is why having specific repairs done and presenting the car back promptly can save both time and money.

Can I use a different garage to repair a failed MOT and still get a free retest?

No. For a free retest, the repairs must be carried out by the original test station, and the car must come back before the end of the next working day. If you use an external garage, you pay at least the partial retest fee, and you have 10 working days before a full test is required.

What if I disagree with an MOT failure?

You can appeal the result through DVSA's formal appeal process. The vehicle will be retested by a DVSA examiner. If you believe the tester was wrong, request a copy of the failure sheet and contact DVSA. There is a fee for an appeal, refunded if you win.

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Retest fees and windows reflect DVSA guidance for Class 4 cars as of 2026. MotR is not affiliated with DVLA, DVSA or GOV.UK. Verify current fees through official GOV.UK sources. Last reviewed 13 June 2026.

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