Attention! Brake fluid can cause eye and skin irritation. In case of contact with eyes or skin, the following measures should be taken:
- Contact with eyes - rinse with plenty of water.
- Skin contact - wash with soap and water.
- Ingestion - Seek medical attention immediately.
Note: Removed fasteners should be reinstalled in their original location. Replacement fasteners must have the same part number. If fasteners with the required number are not available, fasteners of the same size and strength should be used (or more durable). Fasteners that cannot be reused or require a specific tightening torque will be named separately. When installing fasteners, the tightening torque, if specified, must be strictly observed. Failure to follow these recommendations may result in damage to individual parts or the entire system.
Note: Use only DOT-4 approved brake fluid. If it is necessary to change or add brake fluid, use only the fluid specified on the brake fluid reservoir cap. It is not recommended to use liquid "DOT 5" (silicone-containing). Failure to do so may result in reduced braking performance and reduced system life.
Note: Do not allow brake fluid to come into contact with paintwork, wiring or electrical connectors. Brake fluid can attack paint and corrode electrical connections. If liquid is accidentally spilled, flush the affected area with water to reduce potential consequences.
Drain (operating fluids) from the system, bleed the pressure
Spare modulators are supplied filled and bled. During normal maintenance operations, such as when replacing the HECU, air does not enter the modulator and normal bleeding will be sufficient. See for more details on pumping Section 4A, "Hydraulic brake system".