I recently noticed that my BMW 3 Series is experiencing a rough idle when starting up. The car shakes and the RPMs drop before stabilizing. What could be causing this issue?
ReplyThere are a few common causes for rough idle on a BMW 3 Series. One possible cause could be a dirty or faulty idle control valve. It is responsible for regulating the amount of air that enters the engine while idling. If it becomes dirty or fails, it can cause rough idle.
Another possible cause could be a vacuum leak. If there is a crack or hole in one of the vacuum hoses, air can enter the system and cause rough idle. It is best to have your mechanic perform a smoke test to locate any potential leaks.
Discover premium car mats designed specifically for your BMW model. Explore our sub-collections and find the perfect fit for your ride:
Upgrade your driving experience with high-quality car mats that combine style and functionality. Shop Now.