WARNING: Use of cleaning agents/paints not compliant with instructions
can cause
serious injuries or burns!
Handling cleaning agents/paints can trigger allergic skin and respiratory
reactions!
IMPORT
WARNING: If the engine hood/bonnet contact is pulled upwards (workshop
mode),
the information "switch closed" is output. The automatic engine start-stop
function is active.
An automatic engine start
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
IMPORTANT: Only new parts may be used for replacement (repair kit)*.
*Sourcing reference: BMW Parts Catalogue
IMPORTANT: Read and comply with notes on protection against electrostatic
damage (ESD
PROTECTION).
Necessary preliminary work
Remove ROOF SWITCH CLUSTER
Secure switch unit (1) to cover (