34 31 181 Removing and installing/replacing expansion tank for hydraulic brake actuation: Notes

Suck the brake fluid out of the expansion tank. Use a suction bottle used exclusively for drawing off brake fluid.

Fig 1: Removing Expansion Tank Cap

Pull off supply hose (1) of clutch hydraulic system if necessary.

On vehicles with a precharging pump for DSC, the supply hose must be secured in a vertical position to prevent fluid from emerging.

Lift out the expansion tank (2) from the master brake cylinder by tilting it laterally.

Fig 2: Identifying Supply Hose And Expansion Tank