Skip to content
Customer contemplating

What you need to know about car warranties – Do you really need one?

Many UK drivers hear about extended warranties, but what do they really mean, and why are they important?

A car warranty protects you against the cost of sudden mechanical and electrical failures. It’s a smart investment, offering peace of mind and the option to tailor your plan to suit your needs – from adding extra components to upgrading your plan.

But what if you didn’t have a warranty in place? From costly repairs to the risk of a failed MOT, here’s what drivers face without a warranty in place.

Key facts at a glance:

  • Repair costs are rising – major fixes like cylinders, hybrid batteries, or transmissions can cost upwards of £2000

  • A replacement Ford Fiesta can reach £7000

  • Even the most reliable manufacturers in the Warrantywise Reliability Index still show average repair bills of £530

  • Labour costs are increasing as garages need expertise across petrol, diesel, hybrid and EV systems

  • Being off the road is expensive – alternatives like taxis, car hire, or public transport quickly add up

  • Cheap or botched repairs risk failed MOTs, higher costs, and driver safety

  • Relying on a rainy day fund often isn’t enough – big repairs can wipe out months of income

  • An extended car warranty from Warrantywise gives you peace of mind, flexible plan levels, and protection against unexpected bills

  • Warrantywise plans are developed with motoring expert Quentin Wilson and overseen by Edd China, ensuring fair and transparent standards

  • Real customer example: Norman Smith saved £1217 on repairs thanks to his Warrantywise plan

Rising car repair costs in the UK:

With living costs increasing and cars being kept for longer, unexpected repairs are hitting drivers harder than ever.

  • Replacements like cylinders, hybrid batteries, and transmissions can cost upwards of £2000 depending on the model

  • Even the most reliable manufacturers in our Warrantywise Reliability Index still had average repair bills of £530

  • A replacement engine for a Ford Fiesta can cost £7000 – around a fifth of the UK’s average salary

Labour costs are also rising, as technicians now need expertise across petrol, diesel, hybrid and EV systems. Without a warranty, these costs fall directly on you.

car mechanic inspecting car

The hidden costs of being off the road:

If your car is undriveable, short-term alternatives like taxies or car hire or public transport quicky add up. What seems like a stop-gap can become an expensive burden.

Visit our article on the Top 10 most reliable used car makes and models to check out how reliable your car is.

The dangers of cheap or botched repairs:

Faced with high bills, some drivers turn to unqualified mechanics. But this can:

  • Lead to failed MOTs

  • Cause further damage and higher costs

  • Put you and your passenger’s safety and risk

Always trust repairs to qualified professionals – and a warranty makes this affordable.

Man leaning over and looking at car encine

Saving vs warranties – why a rainy day fund may not be enough:

While setting aside money for repairs sounds sensible, most drivers underestimate their true cost. With average wages at £34,000, a major repair like an engine replacement could swallow months of earnings [1].

man looking at laptop

Why it pays to have a warranty in place:

An extended warranty gives you peace of mind and financial security when the unexpected happens. With flexible plans developed alongside motoring expert Quentin Wilson and overseen by Edd China, Warrantywise ensures transparent, fair, and reliable plans.

happy couple in car

Take it from our customer Norman Smith, who received £1217 across two separate repair requests, including a camshaft repair. With Warrantywise, he avoided a big out-of-pocket bill.

If you’re buying a used car, always confirm whether the manufacturer’s warranty is still valid. If not, consider extended car warranty from Warrantywise to protect against costly repairs.

Check out Warrantywise’s top tips for buying a used car if you want to know what other important questions you should be asking before making a purchase.


Warrantywise and the Warrantywise logo are trademarks of Warrantywise. The website www.warrantywise.co.uk and all content are provided for general information only and do not form any contract of protection, insurance, or regulated financial product.

Warranty plans are issued only upon purchase and operate on a discretionary basis, meaning each repair quest for is considered individually and payments are not guaranteed. Please review all information supplied and make your own choice of warranty plan and any optional additions. Warrantywise does not offer financial advice, recommendations, or personalised guidance.

Warranty plan documents can be downloaded here or requested by calling 0800 169 7880.

Warrantywise Limited (No. 07963594) and Warrantywise UK Limited (No. 14775172), both trading as Warrantywise, are registered in England and Wales at The Rocket Centre, 3 Trident Way, Blackburn, BB1 3NU, and form part of Wise Group Holdings Limited (No. 10613336). VAT numbers: 264 8618 71 and 437 8119 76. Prices include VAT at the current rate.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
*See the plan book for further details.
Price Promise

Our Price Promise applies to any plan level you have been quoted for, where the plan level is identical (“like-for-like”). If a like-for-like comparison cannot be made, we will issue a bespoke quotation based on your needs, which we guarantee will be the most competitive price and plan we offer at that time.

To activate our Price Promise, proof of an active comparative quote (dated within the previous 30 days) is required. We do not match exclusive or restricted discounts (e.g., student, NHS, blue-light). Warrantywise reserves the right to refuse a price match where fraud or unauthorised reseller activity is suspected.

All warranty plans are governed by the details set out within the warranty plan documents. Warrantywise reserves the right to change or withdraw the ‘Price Promise’ without notice. Please contact our warranty specialists to activate the ‘Price Promise’.