E 320 4MATIC Wagon (210.282) V6-3.2L (112.941) (1998)
Shock Sensor: Description and Operation
Purpose
Glass breakage sensors (wire loops) (B39, B39/1) vapor-coated onto the rear side windows and rear window or the rear window defroster element
(R1) are used for securing the rear side windows and rear window.
Function
The glass breakage sensors (wire loops) (B39, B39/1) and the wire for the rear window defroster (R1) are interrupted when one of the windows is
broken tripping the alarm via the associated transmitter and receiver.
Glass breakage R > 26 Ohms
Location Of Components
Breaking one of the windows interrupts the glass breakage sensor circuits (wire loops) tripping the alarm via the associated transmitter and receiver unit.
The rear right window glass breakage sensor (B39/1) as well as the rear window defroster element (R1) are connected in series with the right infrared