See also:

Features
Like most up-level BMWs these days, the 650i can be equipped with a dizzying array of technological wizardry. Ours came equipped with an optional lane departure warning and correction system, adap ...

Replacing the battery
The remote control for Comfort Access contains a battery that will need to be replaced from time to time. 1. Take the integrated key out of the remote control. 2. Remove the cover. Remove t ...

Vehicle battery
Maintenance The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. Batt ...