What are the serious defects of the BYD S6?
4 Answers
BYD S6 has the following serious defects: Noticeable noise: When the vehicle is idling, especially when cold, the noise inside the cabin is noticeable. To ensure the lubricant is fully and evenly distributed to protect the engine during operation (idling stabilizes at 800 RPM, with an instantaneous fuel consumption of around 1.4), the vehicle needs to warm up for more than three minutes, which is somewhat lengthy. Excessively hard brake discs: The overly hard brake discs cause abnormal braking noise. Abnormal noise from certain components at high RPM: Some connected parts are not secure enough. Failure to detect the key: While driving, issues such as the horn not working and turn signals not lighting up may suddenly occur. Limited driver's seat space: The foot space is small, and releasing the clutch quickly can easily cause the left knee to hit.
I used the BYD S6 for several years and found the rust issues too severe. The undercarriage and wheel arches started rusting early, requiring two repairs within just three years, each costing thousands, with recurring problems. The fuel consumption was also on the high side, often reaching 11-12 liters in the city, making long-term ownership stressful. Safety was inadequate, reportedly scoring only three stars in the C-NCAP crash test, and I always worried about the chassis strength when driving on highways. The interior quality was poor, with plastic parts aging and deforming within a year or two, significantly reducing comfort. These flaws drove up maintenance costs, and now I'd rather switch cars than recommend buying it.
As a mechanic who frequently works with used cars, I've seen too many BYD S6s come in for repairs. Rust is a persistent issue, with chassis rust-through being quite common, and it often recurs after repairs. Engine noises and lack of power are also frequent complaints, especially unstable RPMs in the 1.5T models. The transmission has strong jerking sensations, and electronic system fault codes frequently appear, giving owners headaches. These flaws affect long-term driving, so I advise buyers to avoid them or prioritize checking these points. Regular maintenance can delay the issues but won't address the root cause.
As an automotive enthusiast, I can clearly see the flaws of the BYD S6: the body rusts at an alarming rate, with wheel arches often rusting through; the interior plastics are cheap and prone to aging; and the safety features are poor, with low CNCAP ratings. These issues make it unreliable as a family SUV, far inferior in quality compared to its peer, the Haval H6. Trying to save money ends up costing more in repairs, which is simply not worth it.
