Used Cars with Warranty in the UK

Why Buy a Used Car with Warranty?

A warranty protects you from unexpected repair costs after purchase. If a covered component fails within the warranty period, the dealer or warranty provider pays for the repair. This is especially important with used cars where the risk of mechanical issues is higher than with new vehicles.

Your Consumer Rights When Buying from a Dealer

UK law sets no minimum warranty on a used car. No UK law requires a dealer to give a warranty, and none sets a minimum length. Every trade sale carries the Consumer Rights Act 2015 instead, which is stronger than most warranties and cannot be excluded by a contract term, a sign, or the words "sold as seen". A warranty is what a dealer adds on top.

What the car itself has to be

• Satisfactory quality: Judged against what a reasonable person would expect for that car at that age, mileage and price — not against a new car. (Consumer Rights Act 2015 s.9)
• Fit for purpose: Roadworthy, and fit for any particular purpose you told the dealer about before buying. (Consumer Rights Act 2015 s.10)
• As described: It must match the advert, the specification and anything the dealer said about it. (Consumer Rights Act 2015 s.11)

What you can do about it, and by when

• First 30 days — reject it for a full refund: If the car is not of satisfactory quality, fit for purpose or as described, you can reject it outright and get all your money back. The 30 days run from the day the car was delivered and ownership passed, not from the day you paid — so a deposit placed weeks earlier does not start the clock. (Consumer Rights Act 2015 s.20 and s.22(3))
• Days 31 to six months — one repair, then reject: The dealer gets one attempt to repair or replace. If that fails, you can reject the car. Within the first six months the law assumes the fault was there when you bought it, and it is for the dealer to prove otherwise. (Consumer Rights Act 2015 s.19(14), s.23 and s.24)
• The motor-vehicle exception most sites miss: After the first 30 days a refund can normally not be reduced for the use you have had — except for motor vehicles, which the Act carves out by name. So a rejection at month five can come back as less than you paid, and that is lawful. (Consumer Rights Act 2015 s.24(10)(a))
• Bought online or over the phone: A distance sale you never saw in person carries a separate 14-day cancellation right, for any reason at all. Buying in person on a forecourt carries no cooling-off period — a common and expensive misunderstanding. (Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013)
• Bought privately, not from a dealer: Almost none of the above applies: a private seller need not supply a car of satisfactory quality. They must still describe it honestly, have the right to sell it, and not sell it unroadworthy. "Sold as seen" cannot cancel those duties. For ordinary faults it carries weight in a private sale and almost none in a trade one. (Consumer Rights Act 2015 s.2 (these rights apply to a trader); Sale of Goods Act 1979 ss.12–13; Road Traffic Act 1988 s.75 (Great Britain); Road Traffic (Northern Ireland) Order 1995 art. 83)

This is a plain-English summary of the law as it stood on 16 September 2026, not legal advice. If you are in a dispute, the Citizens Advice consumer service and the Motor Ombudsman are both free to use.

These rights apply whether or not the dealer offers a warranty of its own, and a dealer cannot sign you out of them. That is the reason to read a used-car warranty as an extra on top — convenience, a courtesy car, a cap on a repair bill — rather than as the thing protecting you.

Types of Used Car Warranty

Dealer Warranty

Most professional dealers offer a warranty ranging from 3 months to 12 months. This is typically free and included in the purchase price. Coverage varies but usually includes engine, gearbox, and major mechanical parts.

Manufacturer Warranty (Remaining)

Some newer used cars may still be covered by the original manufacturer warranty. Kia’s is 7 years or 100,000 miles, whichever comes first, and Hyundai’s is 5 years with unlimited mileage. The mileage cap is what decides most used cases, so a 7-year warranty on a high-mileage car may already have expired. Where cover is still live it passes to you as the new owner for whatever time or mileage is left.

Extended Warranty

Extended warranties can be purchased separately and typically cover the car for 1–3 years beyond the dealer warranty. Providers in the UK include the AA, RAC, Warrantywise, and specialist companies. Costs range from £300–£1,000 per year depending on the vehicle.

What to Check Before Buying

1. Get the warranty in writing. Ask for a written warranty document that specifies exactly what's covered, for how long, and any exclusions.
2. Check MOT status. A valid MOT is not the same as a warranty, but it confirms the car was roadworthy at the time of testing.
3. Run a vehicle history check. Use HPI, the AA, or the RAC to verify mileage, ownership history, and finance status. You can also check the car's MOT history free at gov.uk/check-mot-history.
4. Ask about return policy. Some dealers offer a 7-day or 14-day return policy. This is not legally required but shows confidence in their vehicles.
5. Check the dealer. Look the business up and read its independent reviews before you travel — a dealer that belongs to The Motor Ombudsman also gives you a free dispute route.

Buying on Autoza vs Elsewhere

Almost every car on Autoza is sold by a dealer, and buying from a dealer brings the Consumer Rights Act 2015 with it. You can also put questions about the car to Mark, the AI assistant on every listing, 24/7 before you make contact. Check the listing description for the dealer's warranty terms, and ask for them in writing if they are not there.

When buying privately (e.g. from Facebook Marketplace or other classifieds), remember that the Consumer Rights Act 2015 does not apply to private sales. The car is sold "as seen": it only has to be as described, and the seller has no obligation to provide a warranty or accept a return.