Starting aid terminals
Connecting order
Connect the jumper cables in the correct order; otherwise, there is the danger of injury from sparking.

The so-called starting aid terminal in the engine compartment acts as the battery's positive terminal.
Open the cover of the starting aid terminal.

The body ground or a special nut acts as the negative terminal.
See also:
Tire inflation pressure values up to100 mph/160 km/h
X3 28i
X3 35i
...
Car care products
BMW recommends using cleaning and care
products from BMW, since these have been
tested and approved.
Car care and cleaning products
Follow the instructions on the container.
When cleaning the ...
Socket for OBD Onboard
Diagnosis
There is an OBD socket on the driver's side for
checking the primary components in the vehicle
emissions.
Emissions
The warning lamp lights up:
Emissions are deteriorating. Have
the vehic ...
