BMW 7 Series (F01/F02) 2008-2015 Service Manual / General Vehicle Electronics / Comfort Access
BMW 7 Series: Comfort Access
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Introduction
Keyless Vehicle Access
Using Comfort Access, the customer can unlock and open the vehicle without
active use of the ID transmitter.
Access to the vehicle can be gained from any point. It is importan
System Overview
Input/Output - Comfort Access
Fig. 1: Comfort Access Input/Output Diagram
COMPONENTS DESCRIPTION CHART
CAS 4 Car Access System 4
Footwell module (FRM)
Junction box electronics (JB)
Emergency sta
Functions
Function Overview
Comfort Access is divided into the following functions:
Passive Entry
Passive Go
Passive Exit.
ID transmitters are required for Comfort Access to function.
An ID transmitter co
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Replacing Front Silencer (N63)
Notes
WARNING: Risk of burns! Only perform these tasks after exhaust system
has cooled down.
Necessary preliminary work
Remove rear UNDERBODY PROTECTION
F03 Only:
Remove underbody protection on left and right
Support front silencer with special tool 31 2 220 and a suitable universal
lifter.
System Overview
Fig. 2: CIC System Block Diagram
CIC SYSTEM EXPLANATION CHART
Central information display (CID)
Car Information Computer (CIC)
User interface (BO)
Application software
Hardware
Fig. 3: Bus Overview E9x And E8x (Not Including E83, E85, E86) Model Series,
CIC
BUS EXPLANATION CHART
ACSM - Adv
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