Function description of trunk lid remote control A. General, B. Components, C. Function sequence - ra88001400700x(0700)

Model 140 

1. General 

   The trunk lid remote control includes a remote controlled unlocking feature for the trunk lid. This function can be actuated with a switch in the passenger compartment or by pressing the button twice on the infrared remote central locking (IRCL). This auxiliary function for the trunk lid can be switched off mechanically in the same manner as previously by turning the key to the 90° position and then removing. Unintentional actuation while driving is prevented by checking the speed signal.

   After actuating the trunk lid remote control function the vehicle is unlocked centrally and the trunk lock is then opened by an actuator retracting the locking pawl. This causes the retractable trunk lid grip to extend so that the trunk lid can be opened easily. It is not possible to open the trunk lid with the switch in the passenger compartment when the vehicle is locked from the outside. This is intended to prevent a thief from breaking into the trunk.

2. Components 

   Pneumatic system equipment multi-function control module (A37) with two additional electrical inputs (pin 9, trunk lid remote control switch, pin 10, speed signal), as well as one electric output (pin 8, trunk lid remote control solenoid valve actuation).

   Fig 1: Identifying Pneumatic System Equipment Multi-Function Control Module

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Remote trunk lid opening switch (S15) with integrated indicator lamp indicating that trunk lid is open.

   Fig 2: Identifying Trunk Lid Opening Switch

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Trunk lid remote control valve (Y65/3)

   Fig 3: Identifying Trunk Lid Remote Control Valve

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Lock connection in sedan

   Fig 4: Identifying Lock Connection Components In Sedan

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Lock connection in coupe

   Fig 5: Identifying Lock Connection Components In Coupe

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Rear lock on W/V/VC 140 with trunk lid remote control

   Fig 6: Identifying Rear Lock On W/V/VC 140 With Trunk Lid Remote Control

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
3. Function sequence 
   Fig 7: Identifying Trunk Lid Control Module Components

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

   Illustrated on sedan

   1. The pneumatic system equipment multifunction control module (A37) is actuated by the remote trunk lid opening switch (S15) or the infrared remote central locking control module (N54), (when remote control button is pressed twice within 0.8 seconds).