The potentiometer of BMW 328 right rearview mirror is damaged.

If the potentiometer of the right rearview mirror of your BMW 328 vehicle is damaged, the rearview mirror may not be adjusted properly. Here are some possible solutions and suggestions:

1. Check the fuse: In BMW cars, the rearview mirror potentiometer is usually protected by a fuse. First, check the fuse box, find the fuse position related to the right rearview mirror, and check whether it is blown or blown. If the fuse is blown, please replace it with a new fuse with the same rating.

2. Check the power connection: make sure that the rearview mirror potentiometer receives the correct power. Check the rearview mirror cable for damage, loose connection or disconnection. Make sure the connection is firm and tight.

3. Replace the potentiometer: If it is confirmed that the potentiometer is damaged, a new right rearview mirror potentiometer needs to be replaced. You can contact the authorized service center of BMW or an approved automobile maintenance organization to get the correct potentiometer suitable for your model, and seek the help of professional technicians to replace it.

Please note that the specific location, maintenance method and parts supply of rearview mirror potentiometer may vary according to the model and year. It is suggested that you seek the help of BMW's official after-sales service center or professional maintenance technicians to ensure the correct and safe solution to the problem. They will be able to provide you with professional advice and guidance, and ensure that your BMW 328 rearview mirror will return to normal function.