Hydraulic Unit, Replacing: Preparation: Notes
WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Never, under any circumstances, open the ABS hydraulic modulator. Reassembling it requires special equipment and facilities.
NOTE:
An ABS modulator for ABS has only eight
valves while an ABS modulator for ABS and
STC (stability and traction control) has ten
valves. The method for replacing the unit is the same for both types. Check thoroughly when installing the new unit that the unit is the correct type.