Maitre cylindre 964 uniquement C2

PORSCHE 964 C2 MASTER BRAKE CYLINDER

IMPORTANT: This master brake cylinder is intended exclusively for the Porsche 964 Carrera 2 (C2). It is not suitable for Carrera 4 (C4) or other all-wheel-drive models.

Important Installation Notice:
CORRECT BLEEDING PROCEDURE IS CRITICAL

The Porsche 964 master brake cylinder contains sensitive internal components and must be bled correctly after installation. Please read and fully understand the supplied installation instructions before installing the unit.

Pressure Bleeding Only

The brake system must be bled using a suitable pressure bleeding device only.

Bleeding the system by repeatedly pumping the brake pedal is not permitted.
Repeatedly pumping the brake pedal can damage the sensitive internal components of a newly installed master brake cylinder. Damage caused by improper bleeding will void the warranty.

The master brake cylinder must remain properly pressurized during the bleeding process. Air trapped in the hydraulic system can significantly affect the operation of the master brake cylinder and overall braking performance.

Recommended Working Pressure:

Use a high-quality pressure bleeding device set to:

• 0.8–1.0 bar (approximately 12–15 PSI)
• This allows the brake system and ABS hydraulic unit to be bled correctly.
• The ABS System Must Also Be Bled

To remove trapped air from the ABS hydraulic system, the ABS pump must be activated using a suitable diagnostic tool, such as:

• PIWIS
• Bosch Diagnosis PDT 999
• or an equivalent compatible diagnostic system

Activating the ABS pump and valves allows trapped air to be removed from the hydraulic unit.

Additional Components to Be Checked and Bled:

During the complete bleeding procedure, the following points must also be observed:

• Bleed the clutch hydraulic system / clutch slave cylinder as required.
• Check the vacuum hoses and vacuum system for leaks and proper operation.
• Monitor the brake fluid level throughout the entire bleeding process.
• Never allow the brake fluid reservoir to run dry.
• Bleeding Volumes According to Workshop Manual

The following values can be used as guidelines:

• 250 ml of brake fluid per wheel, approximately 125 ml per bleed screw
• 50–100 ml at the clutch slave cylinder, if required
• Two complete flushing / pressure-release cycles of the pressure accumulator and solenoid valve bleeders are additionally recommended.
• Approximately 1–1.5 liters of suitable brake fluid should be available for a complete and thorough bleeding procedure.

Technical Specifications:

• Master brake cylinder bore: 20.64 mm

The master brake cylinder contains sensitive precision components. The return spring is manufactured from 65Mn manganese steel with a blackened finish. The body is hard-anodized / hard-oxidized, providing an additional protective surface against corrosion.

IMPORTANT:
Correct installation and proper pressure bleeding are essential for the reliable operation of the master brake cylinder and the entire braking system.

This master brake cylinder is intended exclusively for Porsche 964 C2 models and is not suitable for Porsche 964 C4 / all-wheel-drive models.

Before installation, the supplied installation and bleeding instructions must be read, understood, and followed completely.
Work on the braking system should only be carried out by qualified personnel with the appropriate technical knowledge and equipment.