System wiring diagram
Horns
Horn, left
Horn, right
Relay in the Body Domain Controller
Body Domain Controller (BDC)
Steering column switch cluster (SZL)
Signal path of horn:
When the horn is pressed the signal is received by the steering column
switch cluster (SZL).
The SZL sends the in
The Park Distance Control (PDC), optional equipment (OE 508), assists the
driver when maneuvering
in and out of a parking space. The current distance from an obstruction is
indicated by acoustic signals
and on a visual display.
G30 Park Distance Control PDC view in the CID
The distance from an ob