Sealion 7
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Which Byd Sealion 7 engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Byd Sealion 7 engine is the most reliable?
BYD Blade rear motor (Seal / Sealion 7) — Maint. Sensitive verdict. Seal owners are not reporting dead rear motors. They are reporting a knock. On the German Seal forum a car with 35,000 km clacks from the front of the drivetrain on every load change when regeneration is set to High, and the workshop still had no part to name. Another Seal had both front dampers replaced under warranty at 23,000 km for a dull clack that had been there from delivery; the owner said the knock then went. The same damper story fills a long Seal U thread, so a clack on a test drive is a suspension job until someone proves it is the motor. The 12V on the wider BYD range is a separate, cheaper way to have a car that will not open — Seal U owners were replacing one every few months and were told the 12V warranty is 12 months or 20,000 km. This pass did not find a Sealion 7 motor failure of its own. Buy the car that is quiet over a broken surface and that still unlocks after a weekend.
Which Byd Sealion 7 engines should you avoid?
None of the Byd Sealion 7 engines listed are rated "Problematic" or "Avoid" — but always check the service history before buying.
What are the most common Byd Sealion 7 problems?
The most commonly reported problems across all Byd Sealion 7 generations and engines: Knock on a load change, workshop unsure, Front dampers replaced for a clack that was there from new, 12V cover is short, and a flat one locks the car.