BMW F12 2011, Technical Training Manual, Page: 21 / 68

F12�Chassis�Dynamics
3.�Chassis�and�suspension
17
Index Explanation
1 Wheel�electronics,�front�left
2 Wheel�electronics,�front�right
3 Luggage�compartment�power�distribution�box
4 Wheel�electronics,�rear�right
5 Wheel�electronics,�rear�left
6 Tire�Pressure�Monitor�(TPMS)
7 Central�gateway�module�(ZGM)
8 Instrument�panel�(KOMBI)
9 Central�information�display�(CID)
10 Headunit
11 Central�operating�element
Terminal�30B Terminal�30,�basic�operation
3.5.4.�Notes�for�Service
Teach-in�process
The�wheel�electronics�must�be�taught�in�under�the�following�circumstances:
• The�tire�pressure�has�been�changed
• A�tire�change�has�been�carried�out
• Wheels�have�been�replaced
The�driver�can�start�the�teach-in�process�via�the�Central�Information�Display�(CID)�and�the�controller.
For�more�information,�refer�to�the�vehicle�owner's�manual.
Service�life�of�batteries�for�wheel�electronics
The�service�life�of�the�batteries�installed�in�the�wheel�electronics�is�roughly�7.5�years.�The�current�val-
ue�of�the�service�life�counter�in�the�batteries�of�the�wheel�electronics�can�be�read�out�via�the�diagnosis
system.
If�the�battery�is�fully�discharged�or�faulty,�a�fault�message�is�displayed�via�the�TPMS.
Removing/installing�the�wheel�electronics
The�following�points�must�be�observed�when�removing/installing�the�wheel�electronics�of�the�Tire
Pressure�Monitor�System: