How long does the Mercedes-Benz manufacturer warranty last?
Every new Mercedes-Benz sold through the official UK network comes with a 3-year warranty, with no mileage limit — confirmed directly on Mercedes-Benz's own UK site. This is notably more generous than many rivals, which typically cap mileage even within the time-based warranty period.
Mercedes-Benz Approved Used cars come with a warranty of at least 12 months, also with unlimited mileage.
To keep the manufacturer warranty valid, your car needs to be serviced by an authorised Mercedes-Benz retailer in line with Mercedes' recommended intervals — typically every 10,000 miles or 12 months, whichever comes first.
Plug-in hybrid and electric models: the high-voltage battery pack is covered separately from the main warranty. Mercedes plug-in-hybrid models get a 6-year warranty on the battery pack, with a 62,000-mile limit. Fully electric models have their own separate battery warranty terms that vary by model — check your specific model's terms.
See what extended cover would cost for your Mercedes
Get a free quote →What Mercedes-Benz's warranty doesn't cover
Like most manufacturer warranties, Mercedes-Benz's cover applies only to genuine manufacturing or workmanship defects — not normal wear and tear, accident damage, or issues caused by non-approved modifications. Full exclusions are listed in your specific warranty documentation.
Keeping your warranty valid
Most Mercedes-Benz models need servicing every 10,000 miles or 12 months, whichever comes first, at an authorised Mercedes-Benz retailer, to keep the manufacturer warranty valid.
WORTH KNOWING
Mercedes-Benz itself sells an official "Mercedes-Benz Extended Warranty," underwritten by AWP P&C S.A. and administered by AWP Assistance UK Ltd (trading as Mercedes-Benz Warranty Services and Allianz Partners), which is FCA-regulated. This is a genuine alternative to third-party providers like MotorEasy or Warrantywise — worth getting a quote from both to compare.
Extended warranty options once factory cover ends
Once your 3-year manufacturer warranty (or 12-month Approved Used warranty) runs out, you have a few options:
- Mercedes-Benz's own official Extended Warranty, sold through the dealer network
- A third-party provider like MotorEasy or Warrantywise, which may offer wider age/mileage eligibility than the manufacturer's own extension
Cost and eligibility depend on your specific car's age, mileage, and model — get a quote for an accurate figure rather than relying on a generic estimate.
Smart, a Mercedes-Benz partner brand, offers its own equivalent extended warranty through the same underwriter and administrator — see our Smart extended warranty guide for the Smart-specific structure.
Frequently asked questions
How long is a Mercedes-Benz warranty in the UK?
3 years with no mileage limit for new cars bought through the official network, or at least 12 months (also unlimited mileage) for Mercedes-Benz Approved Used cars.
Does Mercedes-Benz offer its own extended warranty?
Yes — the official Mercedes-Benz Extended Warranty, underwritten by AWP P&C S.A. and FCA-regulated. It's worth comparing against third-party providers rather than assuming it's the only or best option.
Is the battery warranty on a Mercedes EV or PHEV the same as the main warranty?
No, it's separate. Plug-in-hybrid battery packs get a 6-year/62,000-mile warranty. Fully electric models have their own separate battery warranty terms that vary by model.
What happens if I don't service my Mercedes at an authorised retailer?
It can invalidate your manufacturer warranty. Mercedes requires servicing in line with its recommended intervals at an authorised Mercedes-Benz retailer to keep factory cover valid.