BYD Sealion 7 Warranty: What's Covered in the UK and Australia
The Sealion 7 is BYD's mid-size electric SUV and its main Tesla Model Y rival. Like the rest of the range it gets a 6-year vehicle warranty and an 8-year battery and drive-unit warranty in both the UK and Australia — and that longer vehicle cover is one of its clearest advantages over the Model Y.
| Cover | United Kingdom | Australia |
|---|---|---|
| Vehicle | 6 years / 93,750 miles | 6 years / 150,000 km, bumper to bumper |
| High-voltage battery (min. 70% SOH) | 8 years / 155,000 miles (250,000 km) | 8 years / 160,000 km |
| Drive unit | 8 years / 93,750 miles | 8 years / 160,000 km |
Used cars keep the balance from the first delivery date.
Battery and drivetrain cover
The Sealion 7 uses an 82.5 kWh Blade (LFP) battery, or 91.3 kWh in the UK Excellence AWD. Every version — rear-wheel drive or all-wheel drive — gets the same 8-year battery warranty with a 70% state-of-health minimum, plus 8 years on the drive unit.
Sealion 7 vs Tesla Model Y warranty
In Australia, the Model Y has a 5-year unlimited-km vehicle warranty for private buyers and an 8-year / 160,000 km (RWD) or 192,000 km (Long Range) battery warranty. The Sealion 7 has 6 years / 150,000 km on the car and 8 years / 160,000 km on the battery. In the UK the gap is wider: Tesla's vehicle warranty is 4 years / 60,000 miles against BYD's 6 years / 93,750 miles.
Fleet, novated and commercial use
Many Sealion 7s in Australia are novated-lease cars, which are private-use cars and get the standard terms. Rideshare, rental and other commercial use can come with different terms — if a used Sealion 7 was a fleet or rideshare car, ask the dealer what applies.
Checking a used Sealion 7
Most used Sealion 7s are young, so they usually have nearly all their cover left. Still decode the VIN to confirm the battery size, drivetrain and build date, and ask a BYD dealer for the warranty start date, open recalls and a battery health report.
FAQ
How long is the BYD Sealion 7 warranty?
6 years on the car and 8 years on the battery and drive unit. UK limits are 93,750 miles and 155,000 miles (250,000 km); Australian limits are 150,000 km and 160,000 km.
Is the Sealion 7 warranty better than the Tesla Model Y's?
On the vehicle, yes in the UK (6 years vs 4). In Australia BYD gives 6 years / 150,000 km and Tesla 5 years / unlimited km for private buyers; battery cover is 8 years for both.
Does the Sealion 7 warranty transfer to a new owner?
Yes. The remaining cover stays with the car and runs from its first delivery date.
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