Self-Leveling Suspension
Electrical and Electronic Components and Component Locations Overview
1 Right Front Body Acceleration Sensor (G342)
• Removing and installing, refer to => [ Left Front Body Acceleration Sensor (G341) and ] Left Front Body Acceleration Sensor (G341) and Right Front Body Acceleration Sensor (G342)
• Component location: In right upper wheel housing
2 Right Front Suspension Strut (air suspension)
• With Right Front Dampening Adjustment Valve (N337)
• Removing and installing, refer to => [ Air Suspension Strut ] Air Suspension Strut
• Filling, refer to => [ System, Venting or Filling ] System, Venting or Filling
3 Air Supply Unit with Solenoid Valve Block
• Air supply unit without solenoid valve block, removing and installing, refer to => [ Air Supply Unit without Solenoid Valve Block ] Air Supply Unit Without Solenoid Valve Block
• Air supply unit with solenoid valve block, removing and installing, refer to => [ Air Supply Unit with Solenoid Valve Block ] Air Supply Unit With Solenoid Valve Block
• If the air supply unit is being replaced, then the level control system compressor relay (J403) must also be replaced.
• Component location: Right front, on underbody
• Line arrangement on solenoid valve block, refer to => [ Solenoid Valve Block, Line Arrangement ] Self-Leveling Suspension
4 Left Front Suspension Strut (air suspension)
• With left front dampening adjustment valve (N336)
• Removing and installing, refer to => [ Air Suspension Strut ] Air Suspension Strut.
5 Left Front Body Acceleration Sensor (G341)
• Removing and installing, refer to => [ Left Front Body Acceleration Sensor (G341) and ] Left Front Body Acceleration Sensor (G341) and Right Front Body Acceleration Sensor (G342).
• Component location: In left upper wheel housing
6 Right Rear Level Control System Sensor (G77)
• Removing and installing, refer to => [ Left Rear Level Control System Sensor (G76) and Right Rear Level Control System Sensor (G77) ] Left Rear Level Control System Sensor (G76) and Right Rear Level Control System Sensor (G77).
• After loosening, adapt control position, refer to => [ Control Position, Programming ] Programming and Relearning
• If the right rear level control system sensor was adapted on vehicles with lane assist, the directional stabilization assistance control module (J759) must be calibrated. Refer to => [ Lane Assist Calibration Procedure ] Lane Assist Calibration Procedure.
7 Right Rear Suspension Strut (air suspension)
• With right rear dampening adjustment valve (N339)
• Removing and installing, refer to => [ Air Suspension Strut ] Air Suspension Strut.
8 Load Level Button (E539)
• Component location: in right side trim in luggage compartment
• More details about load level button , see operating instructions.
9 Level Control System Control Module (J197)
• Removing and installing, refer to => [ Level Control System Control Module (J197) ] Service and Repair.
• Component location: at right in luggage compartment, underneath spare wheel cover
10 Pressure Reservoir in Luggage Compartment
• If pressure reservoir is removed, pressure reservoir system vent must first be performed with (VAS 5051B) via "Guided Fault Finding"
• Removing and installing, refer to => [ Pressure Reservoir ] Self-Leveling Suspension.
• Component location: At left in luggage compartment, underneath spare wheel cover
11 Rear Body Acceleration Sensor (G343)
• Removing and installing, refer to => [ Rear Body Acceleration Sensor (G343) ] Rear Body Acceleration Sensor (G343).
• Component location: In luggage compartment beneath left trim in underbody, underneath spare wheel cover
12 Left Rear Suspension Strut (air suspension)
• With left rear dampening adjustment valve (N338)
• Removing and installing, refer to => [ Air Suspension Strut ] Air Suspension Strut.
13 Left Rear Level Control System Sensor (G76)
• Removing and installing, refer to => [ Left Rear Level Control System Sensor (G76) and Right Rear Level Control System Sensor (G77) ] Left Rear Level Control System Sensor (G76) and Right Rear Level Control System Sensor (G77).
• After loosening, adapt control position, refer to => [ Control Position, Programming ] Programming and Relearning
• If the left rear level control system sensor was adapted on vehicles with lane assist, the directional stabilization assistance control module (J759) must be calibrated. Refer to => [ Lane Assist Calibration Procedure ] Lane Assist Calibration Procedure.
14 Left Front Pressure Reservoir to Underbody
• If pressure reservoir is removed, pressure reservoir system vent must first be performed with (VAS 5051B) via "Guided Fault Finding"
• Removing and installing, refer to => [ Pressure Reservoir ] Self-Leveling Suspension.
• Component location: Left front, on underbody
15 Left Front Level Control System Sensor (G78)
• Removing and installing, refer to => [ Left Front Level Control System Sensor (G78) and Right Front Level Control Sensor (G289) ] Left Front Level Control System Sensor (G78) and Right Front Level Control Sensor (G289).
• After loosening, adapt control position, refer to => [ Control Position, Programming ] Programming and Relearning
• If the left front level control system sensor was adapted on vehicles with lane assist, the directional stabilization assistance control module (J759) must be calibrated. Refer to => [ Lane Assist Calibration Procedure ] Lane Assist Calibration Procedure.
16 Right Front Level Control Sensor (G289)
• Removing and installing, refer to => [ Left Front Level Control System Sensor (G78) and Right Front Level Control Sensor (G289) ] Left Front Level Control System Sensor (G78) and Right Front Level Control Sensor (G289).
• After loosening, adapt control position. Refer to => [ Control Position, Programming ] Programming and Relearning
• If the right front level control system sensor (G289) was adapted on vehicles with lane assist, the directional stabilization assistance control module must be calibrated. Refer to => [ Lane Assist Calibration Procedure ] Lane Assist Calibration Procedure.