S70 L5-2.4L VIN 61 B5244S (2000)
Brake Master Cylinder: Service and Repair
Master Cylinder, Replacement
Master cylinder, replacement
Preparations
Clean around brake fluid reservoir cap, by pipe connections, and, if necessary, by hose connection between reservoir and master cylinder to prevent
dirt entering braking system.
Caution: Release non-return valve in air hydraulic brake power assist unit (brake servo) or pump brake pedal until it goes hard to avoid any vacuum
remaining when undoing the master cylinder. Otherwise, there is a risk that the O-ring acting as a seal will be sucked into the servo and disappear.
Put rags under master cylinder to prevent brake fluid spillage on paintwork surfaces.
Note: Do not open the master cylinder under any circumstances. It takes special equipment and facilities to reassemble.
Removing master cylinder
Ignition off.
Remove:
^
Brake fluid reservoir as per Brake fluid reservoir, replacement and cleaning. Brake fluid reservoir, replacement and cleaning.
Disconnect:
^
Connector to EBD sensor from master cylinder.
^
Brake pipe from master cylinder.
Plug brake pipe to prevent dirt entering braking system.
Remove:
^
Mounting nuts.
^
Master cylinder.
Installation, master cylinder.
Check:
^
That there is no dirt in the master cylinder connections and that the packing box is intact.
Install:
^
Master cylinder and EBD pressure sensor. Use new nuts. Tighten to 25 Nm (18.4 ft. lbs.).
Remove:
^
Plugs from brake pipe and connect brake pipe. Tighten to 14 Nm (10.3 ft. lbs.).
Connect:
^
Connector to EBD sensor.
^
Brake fluid reservoir.
Finishing
