Use only DOT 4 compliant brake fluid.
1. Master brake cylinder. 2. Low brake fluid warning plug. 6. Servo cylinder. 8. Vacuum line. 10. Brake tube. 11. Brake tube. 41. Differential pressure switch (SPD).- 42. Pin. 45. Vacuum line SPD.
* SPD lights up when the difference between the pressures in the two brake circuits exceeds 12.5 + 2.5 bar.
Brake pad wear causes a slight drop in the brake fluid level, which is normal.
A sudden and rapid drop in the brake fluid level indicates a fluid leak.
The leak must be located immediately. It is usually caused by worn seals in wheel brake cylinders. The system must be checked in a workshop.
Checking the indicator lamp
Turn on the ignition, turn off the handbrake.
Press the contact from top to bottom.
The assistant should check if the lamp lights up. If not, check the wiring according to the wiring diagram.
Contact inserts are non-removable. If necessary, you will have to replace the tank.