Brake Fluid Reservoir, Replacing

Brake fluid reservoir, replacement and cleaning
Preparations
Clean around brake fluid reservoir cap, connections between reservoir and master cylinder and any hose connections to prevent dirt entering brake system. Put rags under the hydraulic unit to protect painted surfaces against brake fluid spillage.

Removing brake fluid reservoir
Ignition off.
- Disconnect connector from brake fluid level sensor.
- Drain brake fluid reservoir.

Remove:





- Bolt from underside of brake fluid reservoir.
- Brake fluid reservoir from master cylinder.
- Block hose to clutch cylinder with hose pliers.
- Disconnect hose from brake fluid reservoir and plug connections to prevent dirt entering system.

Cleaning and checking





- Inspect brake fluid reservoir, level sensor, non-return valves and seals.
Use new seals if necessary.
Clean carefully any components not being replaced of old brake fluid and dirt using new brake fluid.

Installing brake fluid reservoir
Check that there is no dirt in the connections.
- Grease O-rings and any hoses with brake fluid or glycerine.

Note: Do not use cleaning solution for greasing hoses. Use brake fluid or glycerine.

Install:
- Brake fluid reservoir from directly above.
- Bolt on underside of brake fluid reservoir. Tighten to 3.5 Nm. Fill brake fluid reservoir with new brake fluid. In cars with manual transmission: Connect hose to brake fluid reservoir. Remove hose pliers. Bleed clutch if necessary and check level in brake fluid reservoir. Use genuine Volvo DOT 4+ brake fluid when topping up.

Finishing
- Connect connector to brake fluid level sensor.
- Check that there are no leaks. Clean up any brake fluid spillage with lukewarm water and car-wash shampoo.