Operation CHARM: Car repair manuals for everyone.

Replacing DSC Hydraulic Unit



Note: Note "General Data". unit.
After completing work, bleed brake system.





Detach lines, seal connection bores with plugs.
V) from THZ circuit V to DSC unit circuit V (front axle circuit)
H) from THZ circuit H to DSC unit circuit H (rear axle circuit)
FR) from DSC unit VR to wheel brake front right
FL) from DSC unit VL to wheel brake front left
HE) from DSC unit HR to wheel brake rear right
HL) from DSC unit HE to wheel brake rear left
Installation:
Brake hose couplings
M10x1 18 ± 1 Nm
M12x1 18 ± 1 Nm







Unfasten plug connection (2) and disconnect.
Release screw and feed out DSC unit towards top.





Replacing hydraulic unit
Release screws (1) and remove bracket (2) from hydraulic unit (3)





Release screws (1) and detach control module from hydraulic unit.
Installation:
Replace micro-encapsulated screws.
Control unit on hydraulic unit
E46 (MK20) 2.6 Nm
E46 (MK60) 5 Nm
(4WD) 2.9 Nm