BYD SEALION 7 Genuine vs Aftermarket Parts

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BYD SEALION 7

This independent guide explores the differences between genuine and aftermarket spare parts for the BYD SEALION 7. As a pure electric vehicle (BEV), the spare parts landscape for this SUV is distinct from traditional internal combustion vehicles. This page details considerations for high-voltage components, cabin filters, brake pads, tyres, windscreen wipers, and general warranty implications under Australian Consumer Law.

Please note that trim names, specifications and prices reflect a compiled dataset (October 2026) and that BYD Automotive Australia may update variants, so every figure must be confirmed with an authorised BYD dealer or the official BYD Australia website. Official service/warranty page: https://bydautomotive.com.au/service-and-warranty.

Contents

High-Voltage Components and Powertrain Parts

The BYD SEALION 7 features an 82.56 kWh BYD Blade Battery and relies on an advanced electric drive unit for its propulsion. The Premium trim utilises a rear permanent magnet synchronous motor delivering 230 kW of power and 380 Nm of torque. The Performance trim incorporates an additional front squirrel cage induction asynchronous motor, providing a maximum combined power output of 390 kW and 690 Nm of torque. Any work involving the high-voltage system must be done by an authorised BYD dealer or qualified technician. High-voltage orange cables must not be touched or opened by owners under any circumstances.

When discussing the BYD SEALION 7 82.56 kWh Blade battery capacity or replacing BYD SEALION 7 11 kW AC charging equipment, it is crucial to recognise that the manufacturer does not publish a public online parts catalog with OEM part numbers for these primary propulsion components. Aftermarket alternatives for the traction battery, drive motor controller, Type 2 (11 kW) AC charging port, or CCS 2 (150 kW) DC charging port are not supported. Using non-BYD genuine or non-recommended parts that cause damage is not covered under the official vehicle warranty. Always consult an authorised BYD dealer for repairs related to the powertrain, regenerative braking system, and the V2L discharge adapter.

Braking System and Wheels

The vehicle is equipped with ventilated and drilled front discs and ventilated rear discs across the lineup, with the Performance trim featuring a painted front brake caliper. The regenerative braking system works in conjunction with the friction brakes to decelerate the vehicle. Owners seeking BYD SEALION 7 high performance brake discs and pads replacement will find that genuine parts are precisely designed to meet the strict demands of this 2,225 kg (Premium) or 2,340 kg (Performance) kerb weight SUV.

To achieve the official BYD SEALION 7 WLTP range figures (482 km for Premium, 456 km for Performance), maintaining proper tyre pressure and tread condition is essential. Evaluating replacement options for BYD SEALION 7 245/45 R20 tyres due to wear requires consideration of the vehicle’s mass and immediate torque delivery. The Premium trim utilises 235/50 R19 or 255/45 R19 tyres, while the Performance trim requires 245/45 R20 tyres. Tyres are not covered by the BYD vehicle warranty; instead, tyre manufacturers’ warranties apply. It is important to confirm with BYD Automotive Australia regarding the exact load and speed ratings when selecting aftermarket tyres. Wheel alignment and balancing, as well as replacing brake linings, are items for which a charge may be made during routine servicing.

Cabin Filtration and Air Purifiers

Inside the cabin, the BYD SEALION 7 features an automatic dual-zone heat pump air-conditioning system, accompanied by a PM2.5 high efficiency filter (CN95) and a negative ion air purifier. The cabin air filter requires periodic replacement to maintain interior air quality. Genuine BYD filters are manufactured to fit the housing precisely and maintain the specified filtration standards for removing particulates from the outside air.

While aftermarket cabin filters are available from third-party suppliers, they must match the dimensions and airflow requirements of the original parts. Failing to replace the filter at the intervals specified in the BYD Owner’s Manual may result in reduced climate control efficiency. For the correct part specifications and maintenance intervals, refer to the official owner’s manual.

Windscreen Wipers and Exterior Fittings

Consumable items such as wiper blades, transmitter batteries, and gas struts are considered regular maintenance items. Genuine wiper blades are designed to conform to the curvature of the windscreen and provide clear visibility in adverse weather. Aftermarket wiper blades can be sourced, provided they match the required length and attachment mechanism for the vehicle.

As with any exterior accessory or replacement part, ensure it does not interfere with the vehicle’s safety sensors. The BYD SEALION 7 relies on a 360-degree camera, front parking sensors (2 zones), rear parking sensors (4 zones), and radar components for features like adaptive cruise control, forward collision warning, and automatic emergency braking. Any aftermarket accessories, such as unique grilles or bumper modifications, could disrupt these systems, and any required sensor calibration must be done by an authorised BYD dealer.

Warranty Implications and Insurance Considerations

The new vehicle warranty covers the car for 6 years or 150,000 km, while the traction battery and drive motor unit are covered for 8 years or 160,000 km, with a guarantee of at least 70% battery capacity retention. Genuine spare parts imported by BYD Australia, bought by owners, and installed by an authorised BYD Retailer are covered for 12 months from the date of purchase.

Under Australian Consumer Law, vehicle owners have the right to choose their repairer and parts. However, the BYD Warranty and Service Handbook states that damage caused by the use of non-BYD genuine or non-recommended parts is not covered. Furthermore, unauthorised modifications or third-party conversions are excluded from warranty coverage. Whether comparing the BYD SEALION 7 Premium RWD vs Performance AWD specifications or reading a BYD SEALION 7 electric family SUV road test review, prospective buyers should understand that strictly following the manufacturer’s maintenance recommendations is essential.

For insurance purposes, especially when acquiring the vehicle via a BYD SEALION 7 novated lease EV salary sacrifice in Australia, modifications using aftermarket parts may need to be declared to the insurer to maintain comprehensive coverage. All maintenance and part replacements are subject to manufacturer specifications.

Frequently Asked Questions

Can I upgrade the brakes with aftermarket components?

While aftermarket brake options exist, the BYD SEALION 7 uses specific ventilated and drilled front discs and ventilated rear discs designed to work alongside its regenerative braking system. Any changes to the braking hardware must be done by an authorised BYD dealer or qualified technician, as incompatible parts can affect vehicle safety and warranty coverage.

Are genuine parts required to keep the warranty valid?

Australian Consumer Law allows the use of suitable aftermarket parts; however, if a non-genuine part causes damage to the vehicle, that resulting damage is not covered by the BYD manufacturer warranty. It is important to refer to the official owner’s manual and use parts that meet or exceed original equipment standards.

How do I find the correct tyres for my vehicle?

Tyre specifications depend on the specific trim level. The Premium model comes with either 235/50 R19 or 255/45 R19 tyres, and the Performance model uses 245/45 R20 tyres. Always confirm with BYD Automotive Australia or an authorised dealer for exact tyre load and speed ratings.

Where can I buy genuine BYD SEALION 7 spare parts?

Genuine BYD spare parts can be ordered and installed through authorised BYD Experience Centres and Service Centres. There is no public online parts catalog with OEM part numbers provided by the manufacturer.

Is the 12V battery covered by the same warranty as the main traction battery?

No, the BYD SEALION 7’s lead-acid starting (12V) battery is covered for 12 months or 20,000 km, whichever occurs first. The high-voltage traction battery is covered for 8 years or 160,000 km.

See Also

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Disclaimer: This guide is for informational purposes only. Official specifications, recall details, and warranty terms are determined by BYD Automotive Australia (EVDirect). Always consult an authorized dealer or official owner’s manual.