C70 L5-2.4L Turbo VIN 56 B5244T (2000)
Hydraulic Control Assembly - Antilock Brakes: Procedures
Hydraulic unit, replacing
Preparation
Disconnect the battery lead
See VCC-104452.
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.
Removal
Preparations
Switch off the ignition
Place paper under the ABS hydraulic modulator as protection against brake fluid spillage.
Depress the brake pedal a few times so that no vacuum remains in the power brake booster.
Clean the brake pipes terminals at the ABS hydraulic modulator and master cylinder
Depressurize the brake system
Secure the pedal in the depressed position. Use a pedal jack.
Remove the protective cap from the bleed nipple at the left front wheel.
Install a plastic hose on the nipple.
Open the bleed nipple.
Collect the brake fluid in a container (bottle).
Shut the bleed nipple.
Preparations for removal of the ABS hydraulic modulator
Remove the air cleaner (ACL) housing
Remove the Air Cleaner (ACL) housing assembly with the intake pipe. Disconnect the connector.