BYD Sealion 5 DM-i repair and maintenance

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BYD Sealion 5 DM-i

Welcome to the repair hub for the BYD Sealion 5 DM-i. This model is a plug-in hybrid, combining a 1.5-litre Xiaoyun engine with an electric motor and a Blade Battery. Maintaining a plug-in hybrid involves looking after both the petrol powertrain and the high-voltage electrical components.

All high-voltage components must not be opened by owners. Diagnostic and mechanical work is for an authorised BYD dealer or qualified workshop. Always check your owner’s manual for specific instructions and confirm with an authorised BYD dealer / service centre. BYD’s own procedure applies to all major repairs.

Repair guides by system

Battery & ChargingBrakesSuspension & TyresAir ConditioningInfotainment & SoftwareLights & GlassWhere is it?

Repair and maintenance guides

  • Where is it? – Locate essential parts including the fuse box, child locks, and charging port.
  • Battery and charging – Information on AC charging care and plug-in hybrid battery maintenance.
  • Brakes – Guidance on brake components and the automatic emergency braking systems.
  • Suspension and tyres – Details on the MacPherson front and multi-link rear suspension, plus tyre pressure reset steps.
  • Air conditioning – Managing the climate control using the 12.8-inch rotatable touchscreen.
  • Infotainment and software – Troubleshooting Apple CarPlay, Android Auto, and OTA updates.
  • Lights and glass – Maintaining the full-LED lights and windscreen ADAS sensors.

Frequently asked questions

Can I repair the high-voltage system myself?

No. High-voltage components must not be opened by owners. Diagnostic procedures are reserved for an authorised BYD dealer or qualified workshop.

Where can I find the exact maintenance intervals?

We do not hold the scheduled intervals. Check your owner’s manual for the official timetable.

What should I do if a warning light appears?

Read the dashboard message and check your owner’s manual to understand the symbol. Book a diagnostic check with a dealer if needed.

See also

Sources