Before replacing the expansion unit of the brake system, it is necessary to drain the brake fluid and disconnect the brake fluid level sensor connector. After this, the supply chain can be disconnected (only on vehicles with ICIE) and a tank removed.
To be collected in the following order: first activate the brake fluid level sensor and the supply chain sensor (only on motor vehicles with ICIE) to the reservoir, then attach the tank to the main brake cylinder and attach a brake-fluid level sensor transaction.
Now we need to finish the necessary amount of brake fluid and pump the brake system.
