What are the reasons for the steering wheel of BYD Qin not turning?

[MollyFitz]

Here are the specific reasons why the steering wheel of BYD Qin may not turn: 1. Insufficient power steering fluid: Power steering fluid is a medium oil used in the car's power steering pump, which helps transmit steering force and provides cushioning. The power steering fluid needs to be replaced regularly, and any leaks should be checked. When the power steering fluid is insufficient, the steering will feel heavy and stiff. 2. Low tire pressure: Low tire pressure increases the contact area between the tire and the road surface, leading to greater friction and making steering more difficult. This results in a heavy steering wheel, which is not conducive to driving safety. 3. Toe-in issues: Toe-in can also affect the car's steering. Toe-in helps the steering wheels automatically return to the center, ensuring stable straight-line driving. Problems in this area can also cause heavy steering. 4. Steering gear or power steering pump failure: The steering gear and power steering pump also affect the car's steering. Any failure in these critical components can make steering difficult. Issues such as universal joints, chassis suspension stabilizer bars, or plain bearings should not be overlooked.

[StOwen]

Having driven for over 20 years, when I encountered the steering wheel of my BYD Qin becoming immovable, my first thought was that the power assist system might have failed. The electric power steering (EPS) in hybrid vehicles heavily relies on the battery and sensors. If the battery is depleted or there's a control system malfunction, the power assist vanishes instantly, making the steering wheel extremely heavy. It could also be a mechanical jam, such as worn steering column bearings or a tire stuck by foreign objects. Last time, my colleague's car had this issue when a road pebble got wedged into the wheel gap. In such cases, never force the steering wheel, or you risk damaging the tie rod gears, making the problem worse. Safety first—immediately pull over, turn on the hazard lights, and call a tow truck to take it to a professional shop for diagnostic trouble codes. Don't try to DIY to save money; the electronic systems are too complex, and it's best left to the mechanics with diagnostic tools.