Home › BYD in the UK › BYD Warranty UK Explained: Battery and Vehicle Cover
When investing in a new electric or plug-in hybrid vehicle, understanding the manufacturer’s guarantee is crucial. The BYD warranty UK offers substantial cover across its range, though the exact mileage limits and terms vary slightly between specific models based on their official UK specifications.
This guide outlines the BYD battery warranty UK and the general vehicle cover as stated in the official documentation for each model.
Comprehensive Cover: BYD Dolphin Surf and Sealion 7
According to their official UK brochures, the BYD Dolphin Surf and the BYD Sealion 7 share a highly detailed and comprehensive warranty structure:
- Whole Car Warranty: 6 years or 93,750 miles.
- BYD Battery Warranty UK: 8 years or 125,000 miles, guaranteeing a State of Health (SOH) of at least 70%.
- Drive Unit: 8 years or 93,750 miles.
- Body Anti-Corrosion: 12 years.
- Separately Mentioned Parts: 4 years or 75,000 miles.
- Genuine Spare Parts: 1 year.
- V2L and Charging Cable: 1 year.
High-Mileage Cover: BYD Atto 3 EVO
The BYD Atto 3 EVO features a slightly different mileage limit tailored for higher-use drivers. Its BYD’s UK press information states:
- Vehicle Warranty: 6 years or 93,750 miles.
- BYD Battery Warranty UK: 8 years or 155,350 miles, guaranteeing a State of Health (SOH) of at least 70%.
Standard 6-Year / 8-Year Cover
For several other models, BYD’s official UK documents confirm a standard duration, though specific mileage limits are not detailed in those specific press releases.
- BYD Seal: 6-year manufacturer warranty; 8 years for the battery and electric motor.
- BYD Atto 2 DM-i: 6 years manufacturer warranty; 8 years for the drivetrain and battery.
- BYD Seal 6 DM-i Saloon: 6-year manufacturer’s warranty; 8 years for the drivetrain and battery.
- BYD Seal 6 DM-i Touring: 6 years manufacturer warranty; 8 years for the drivetrain and battery.
- BYD Sealion 5 DM-i: The ‘At a Glance’ sheet states a warranty of 6 years or 93,750 miles, but does not explicitly detail the battery warranty.
Models Awaiting Full Warranty Confirmation
For the remaining models in the BYD lineup, the official UK press and specification documents supplied do not explicitly state the warranty terms. We recommend checking the official terms for the following models with a dealer:
- BYD Dolphin: Warranty terms not stated in the supplied 2025 specification data.
- BYD Shark: Warranty terms not stated in the launch release.
- BYD Ti 7: Final UK homologation data, including the warranty, is not yet published.
FAQ
What is the standard BYD warranty UK? For models where full details are published, BYD generally offers a 6-year or 93,750-mile whole car warranty. However, check specific model details as some press materials only state the 6-year duration without a mileage limit.
What does the BYD battery warranty UK cover? The battery warranty generally covers 8 years. For models like the Dolphin Surf and Sealion 7, this is up to 125,000 miles. For the Atto 3 EVO, this extends to 155,350 miles. In these explicitly detailed cases, BYD guarantees the battery will maintain a State of Health (SOH) of at least 70%.
Is the electric motor covered under a separate warranty? Yes, on several models. The Dolphin Surf and Sealion 7 list an 8-year or 93,750-mile warranty for the drive unit. The Seal, Atto 2 DM-i, and Seal 6 DM-i models specify an 8-year warranty for the electric motor or drivetrain alongside the battery.
Are charging cables included in the warranty? For the Dolphin Surf and Sealion 7, where detailed component warranties are published, the Vehicle-to-Load (V2L) adapter and charging cable are covered for 1 year.
Ready to explore further? Confirm the current price, offers and delivery times with your local BYD dealer.