How to change sos emergency battery for BMW 218
Most BMW batteries are on the right and middle of the trunk. First remove the old battery from the car, first remove the negative pole pile head, and then remove the positive pole pile head, and then remove the fixing bracket screws, unplug the vent tube, and remove the old battery
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Move the new battery and put it in position, plug in the snorkel and install the mounting brackets! The original car battery is 90AH\/720A, replaced by 100AH\/760. High cost performance! First connect the positive pile head and tighten it, cover the insulating plastic cover, and then install the negative pile head. Next, turn on the ignition switch and connect to the BMW diagnostic computer