What could be the reason for a sudden increase in steering wheel heaviness in a BMW?
2 Answers
It could be an issue with the power steering system or the tires. Power steering system issues: Dirty power steering fluid causing poor circulation, making steering difficult, or in severe cases, the power steering pump may produce abnormal noises. Other issues include excessively tight or poorly lubricated bearings in the steering system, overly tight or insufficiently lubricated steering tie rod ball joints, or bending of the steering shaft and sleeve causing jamming. These are common faults in the power steering system. Tire issues: First, check if the tire pressure is insufficient. You can visit a service station to use a pressure gauge to test whether the tire pressure is low and proceed with timely repairs or replacements.
Oh dear, my BMW has been running for five or six years, and last winter the steering wheel suddenly became extremely heavy, making it a real effort to turn. At first, I thought it might be due to low tire pressure, but a check showed it was normal. Later, I suspected an issue with the power steering system—if the electric motor in BMW's electric power steering system is overloaded or the sensors fail, the resistance can increase. It could also be that low battery power is affecting the supply to the power steering motor, or that lack of lubrication in the steering column is causing increased friction. I’ve also heard that hydraulic systems can behave similarly if there’s a fluid leak. During inspection, check if the power steering fluid reservoir is full and if the belt is loose. Safety comes first—if you notice any issues, get it checked at a professional shop right away. Delaying could be risky, especially on highways. Regular maintenance and paying attention to steering components can save a lot of hassle in the long run.
