Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Control Module/Hydraulic Unit
The control module is installed in the engine compartment on the right side next to the strut tower.
Both the control module and the hydraulic unit are replaceable as separate components.
All processing functions for ABS/ASC or DSC regulating functions are carried out in the one control module. The module is linked to the CAN bus for communication with the DME and AGS control modules. Additionally the CAN bus is used for communication with the steering angle sensor and for illumination of the ABS and DSC indicator lamps in the instrument cluster.
The hydraulic unit consists of the following:
- Four Inlet Solenoids
- Four Outlet Solenoids
- Two Changeover Solenoids
- Two Charge Solenoids
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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