Brake Fluid Reservoir, Replacing

Replacing And Cleaning Brake Fluid Reservoir

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.