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Used car warranty UK explained — your rights, your options

The 'warranty' a UK dealer sells you is often a 99-page document that excludes everything that's actually likely to go wrong. Meanwhile the Consumer Rights Act gives you stronger protection than most dealer warranties for free. Here's the real picture: when warranties matter, when they don't, and what to push back on.

SB Written by Salah Baaziz · Updated · Editorial standards

Your rights under the Consumer Rights Act (CRA)

When you buy a used car from a UK dealer, the Consumer Rights Act 2015 gives you these rights for FREE:

30 days short-term right to reject — if the car is faulty when delivered, you can return it for a full refund.

6 months reverse burden of proof — if a fault appears within 6 months, the dealer must prove it wasn't there at sale (most can't).

6 years to bring a claim (5 in Scotland) — for any fault that breaches the 'satisfactory quality' test.

These rights only apply to dealer sales — NOT private sales. They override anything in the dealer's warranty document that tries to limit them. They cost you nothing.

Manufacturer warranties on used cars

Many used cars are still within their original new-car warranty when you buy them.

Standard new-car warranty: 3 years/60k miles for most brands.

Extended new-car warranty (transferable): Kia (7 years/100k), Hyundai (5 years/unlimited), Toyota (5 years extendable), Mitsubishi (5 years).

Always transfer the warranty to your name at purchase. Some manufacturers require activation within 30 days. Check the manufacturer's website.

Manufacturer warranties cover defects but not wear-and-tear. Cambelt, brake pads, tyres etc. are still your bill.

Dealer-supplied used-car warranties

Most franchised dealers include a 3-12 month warranty in the price. Independent dealers often include 3 months.

Read the exclusions list. Often excludes: any pre-existing condition, wear-and-tear items, anything attributed to 'driver behaviour'.

Common gotcha: warranty pays the dealer's labour rate (£70/hr) but for repairs at the dealer's own workshop. If the car breaks down 100 miles away, you pay recovery to bring it back.

Better option: a Warranty Direct or RAC third-party warranty (£300-£500/yr) covers anywhere, any garage.

Third-party / aftermarket warranties — are they worth it?

Verdict: Sometimes. Read the policy in full before paying.

The good policies (Warranty Direct, RAC Approved Warranty, Warrantywise) cover most powertrain and electrical failures, with reasonable claim limits (£1,500-£2,500 per claim).

The bad policies cap at £500 per claim, exclude consequential damage, and require pre-authorisation that takes 3 days.

Worth paying for: high-mileage premium cars where one major failure pays for 3 years of warranty. Range Rover, BMW 7 Series, Mercedes S-Class etc.

Not worth it: 5-year-old Toyota Corolla. The car won't go wrong; you've paid for nothing.

Private sale — no warranty rights

Private sales: Consumer Rights Act DOES NOT APPLY. The legal protection is much weaker. The Sale of Goods Act (caveat emptor) applies — 'as described, of merchantable quality' but the bar is very low.

This is the price you pay for the £1-£2k saving private gives you.

Mitigation: always do a pre-purchase inspection (£200) by an independent engineer for any private purchase. Always pay by bank transfer for paper trail. Get the seller's V5C and driving licence details.

See private seller vs dealer.

Frequently asked questions

Can I reject a faulty used car bought from a dealer?+
Yes — within 30 days of purchase, you have an absolute right to reject and demand a full refund. After 30 days, the dealer can try to repair first. Use this right if needed.
Does the Consumer Rights Act cover private sales?+
No. The CRA only applies to business-to-consumer sales. Private sales are covered by much weaker protections under the Sale of Goods Act.
Are dealer warranties insurance products?+
Most third-party warranties are FCA-regulated insurance products. Many dealer-supplied warranties are not — they're contract-of-service products. Insurance regulation gives you stronger consumer protection if the warranty provider becomes insolvent.
What about extended warranties on new cars?+
Manufacturer-extended warranties (paid for at car purchase) are generally good value if you plan to keep the car beyond the standard 3 years. Third-party extended warranties on new cars are usually overpriced — manufacturer offers better coverage.
Should I buy a separate breakdown cover policy as well?+
Yes — warranty covers repair costs; breakdown cover covers recovery and roadside fix. They're different products. £40-£90/year for AA / RAC / Green Flag.