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V70 GL L5-2.4L VIN 55 B5254S (1998)

Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder > Component Information > Service and Repair > Replacing and Cleaning Brake Fluid Reservoir > Page 5185

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Brake Master Cylinder: Service and Repair
Replacing the Master Cylinder

Replacing the master cylinder

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 (Not for VADIS use) 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:

Brakes and Traction Control > Hydraulic System, Brakes > Brake Master Cylinder > Component Information > Service and Repair > Replacing and Cleaning Brake Fluid Reservoir > Page 5185

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