Why Can't the BMW 5 Series Key Turn?
3 Answers
Reasons why the BMW 5 Series key can't turn: The steering wheel may have been automatically locked, which is part of the car's anti-theft system. The steering wheel locks when turned to a certain degree and remains fixed within a specific range. Steering wheel unlocking method: Insert the mechanical key, press the brake pedal, then turn the steering wheel while simultaneously turning the key to complete the unlocking procedure. The new-generation BMW 5 Series has a body length, width, and height of 4841 mm, 1846 mm, and 1468 mm respectively, with a wheelbase of 2888 mm. The top version of the BMW 5 Series, the 545i, is equipped with a V8 engine from the 7 Series, delivering a maximum power of 245 kW and a maximum torque of 450 Nm.
Last time I drove my friend's BMW 5 Series, I was really frustrated when the key wouldn't turn. I tried gently shaking the steering wheel because the steering wheel automatically locks after the engine is off, and turning it slightly can unlock it. If that doesn't work, the key might be dirty or worn, or there could be dust in the keyhole affecting the turn—a gentle cleaning might solve the issue. Alternatively, the remote key battery might be dead, especially for older models, so try replacing the battery. If none of these work, the lock cylinder might be corroded, or the anti-theft system might be interfering. Forcing the key to turn could damage the mechanism, so it's best to take it to a professional shop and have them check the steering column lock unit. To prevent jamming, regularly clean both the key and the keyhole.
I often see this issue in the community car repair group. The BMW 5 Series key getting stuck is mainly due to the steering wheel lock design. If the steering wheel isn't straight after turning off the engine, the system will lock the steering wheel. Gently push the steering wheel while firmly turning the key to unlock it. If it still doesn't move, check if the battery is low affecting the key signal, or if there's poor contact in the key socket. Pull it out, clean it, and try again. Avoid forcing the key to prevent damaging the lock cylinder and increasing repair costs. For prevention, always turn off the engine with the steering wheel centered and keep the key free from dust.
