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, Removing From Hydraulic Unit
Separation from control module and hydraulic unit is not possible on vehicles with hydraulic brake booster or hill assist.
-- Set hydraulic unit with control module upward onto a clean, level surface.
-- Remove the inner Torx® bolt from the control module.
-- Pull control module off from hydraulic unit -arrow- without angling.
-- Carefully pull off all sealing rings from valve domes of hydraulic unit.
- On a disconnected control module, circuit board is laid open.
- No moisture or particles of dirt must penetrate in interior of control module.
- Avoid build-up of static electricity!
-- Cover control module magnetic coils with a lint free cloth.
After separating the control module and hydraulic unit, use transport protection for valve body.
NO RELATED
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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.