
It indicates that the power steering system cannot provide sufficient steering assistance or cannot provide any assistance at all. Firstly, the auto start-stop function has higher requirements for the battery, otherwise it can easily cause voltage instability, leading to program malfunctions.

I've been driving a BMW for several years, and recently I've noticed that steering requires much more effort than before—it used to turn easily with just a light touch. This is likely due to an issue with the power steering system. The BMW's electric power steering might be failing, possibly because of low battery voltage, a damaged steering motor, or faulty sensors. Insufficient tire pressure or uneven tire wear can also make steering more difficult. Last time I checked, the front tires had a pressure difference of several psi, and it felt a bit easier after inflating them. Worn or aged steering linkage or ball joints are another common factor, especially for older cars that have endured many potholes. I strongly recommend getting a comprehensive diagnosis at a professional shop immediately—don't hesitate, as steering failure is a safety hazard that could lead to accidents. Regular maintenance shouldn't overlook steering system checks, such as periodic power steering fluid changes, and avoiding holding the steering wheel at full lock for too long to extend component lifespan.

As someone who often tinkers with car repairs, I've noticed that a heavier steering wheel usually stems from a few key reasons. The primary suspect is power steering system failure—BMW's electric power steering units are prone to issues like poor wiring connections or module malfunctions. Insufficient or contaminated power steering fluid can also reduce hydraulic system performance. Secondly, tire problems such as low pressure or front-rear axle imbalance directly increase steering effort—I've personally identified this issue using a tire pressure gauge. Loose suspension components like stabilizer bars or worn shock absorbers can similarly cause unusual noises accompanied by heaviness. My advice is to start with simple self-checks: inspect power steering fluid levels, measure tire pressure, and listen for noises around the steering column. If there's no improvement, then visit a repair shop. Avoid forcing the car onto highways to prevent exacerbating damage. In daily driving, smooth cornering and avoiding bumpy roads can help protect the system and minimize issues.

Picking up my child from school, I got really nervous when the steering wheel of my BMW suddenly became heavy. This issue usually stems from abnormalities in the power steering system, such as a damaged electric motor or faulty sensor signals, leading to reduced assistance. Underinflated tires or uneven wear is another common factor, making turns especially strenuous. It could also be due to worn steering linkage or oil leaks; I once heard a neighbor say this problem nearly caused an accident while dropping off their child, and they only felt relieved after immediate repairs. It's advised to stop the car and inspect immediately, preferably heading to a 4S shop for professional diagnostic tools, rather than risking further driving. Safety first—regularly check the power steering condition monthly and replace aging components promptly to prevent accidents.


