WDS Wiring Diagram System - E53

• Complete vehicle
• Component and signal information
• Service functions

• Drive
• Chassis
• body

• Wheel-slip control system
• Springing and damping
• Steering
• Wheels and tyres
• CAN-bus

• Single-axle air suspension EHC (EHC Electronic Height Control)
• Dual-axle air suspension EHCII (EHC2 Electronic ride-level control)

• Electronic level control (EHC) (up to 2002_09)
• Electronic level control (EHC) (from 2002_09)
• 2-axle air suspension
• Control module
• Ride-level control
• Ride-level sensors
• Air supply
• Air control
• Symptoms

• 2-axle air suspension
• Supply, air suspension control unit
• Solenoid valve, front left
• Solenoid valve, front right
• Solenoid valve, rear left
• Solenoid valve, rear right
• Drain valve
• High-pressure drain valve
• Pressure accumulator valve
• Pressure accumulator sensor
• Pressure accumulator

• Air suspension