relay BMW X5 2002 E53 DSC System Workshop Manual
Page 18 of 24
18
COMPONENTS
CONTROL MODULE HYDRAULIC UNIT
The control module is integrated into the hydraulic unit as one compact unit. This reduces
the size and wiring required for DSC operation. Additionally the motor relay and valve relay
have been replaced by solid state final stages in the control module. The hydraulic unit con-
tinues to use:
• Two pre-charge solenoid valves
• Two changeover solenoid valves
• Four intake solenoid valves
• Four outlet solenoid valves
• One return pump