Hi there. It's a bmw 3 series It turns on but when idle it felt like it was going to shut off Battery light says charging malfunction. Mechanic's Assistant: Hi there. Is the battery light blinking or flashing, or is it solid?
First thing’s first: Check the codes. There are a lot of potential problems that could be causing your BMW to shake while idling, so we want to narrow down the list as much as possible. You might be surprised to learn the sheer amount of issues that your BMW’s computer can identify and register in the vehicle.
I have a 2010 535i that had a rough shaking idle at about 28k miles. The dealer replaced all 6 fuel injectors and the car has been smooth for the last 5 months (11k miles). I think a new fuel injector design (improved) was introduced a while ago. Also note that the spark plugs need to be replaced every 40k miles. One of the main reasons why your vehicle could be vibrating at idle could be due to worn out spark plugs. When a vehicle’s spark plug is faulty, it can interfere with the air-fuel ratio leading to improperly firing cylinders, resulting in a misfire while idling. Replacing your spark plugs will solve this problem. . 220 386 343 82 273 17 345 342 32