FixVault

Hydraulic unit, replacing: Removal: Notes

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Volvo V70, 2006 Volvo V70, 2005 Volvo V70, 2004 Volvo V70, and 2003 Volvo V70. 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.