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Home >> Porsche >> 2006 >> Cayenne Base, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes - Hydraulics, Regulator, Booster >> 47 01 07 Bleeding the brake system - as of MY 2003 (All Models Except Cayenne S TIO Titan) >> Bleeding the brake system >> Notes

Bleeding the brake system: Notes

WARNING: Porsche Stability Management does not work without values for the current brake pressure. 
  • Danger of personal injury and material damage when the hydraulic unit is not calibrated. 

→ After assembling the hydraulic unit, a static test and a swap test must be carried out with the Porsche System Tester.

→ After assembly of the brake master cylinder or the hydraulic unit, the pressure sensor must be calibrated with the Porsche System Tester.

NOTE:
  • Observe brake fluid quality. Use only new DOT 4 brake fluid. 
  • The brake fluid change interval is two years, using Super DOT 4 brake fluid. 
  • This brake fluid is available under the following part numbers: Container quantity: 1 liter = 000.043.203.66. 30 liters = 000.043.203.67. 

1. Open reservoir.

Fig 1: Bleeding device connected to brake fluid reservoir
GP00010575Courtesy of PORSCHE OF NORTH AMERICA, INC.

2. Connect a bleeding device to the brake fluid reservoir. Switch on the bleeding device. Bleeding pressure is approx. 2.0 bar.

NOTE:
  • Always bleed both bleeder valves on the brake caliper. 
  • Bleed the outer bleeder valve first. 

3. Continue the bleeding procedure at the brake calipers. Do so in the following sequence: rear right/rear left/front right/front left.

4. Use a transparent hose and a collecting bottle to check the escaping brake fluid is clean and free of air bubbles and to determine the amount of brake fluid used.

5. Open each bleeder valve until clear, bubble-free brake fluid emerges.

6. Tighten the bleeder valves to the specified tightening torque and remove the bleeder hoses.

Fig 2: Brake fluid reservoir
GP00010576Courtesy of PORSCHE OF NORTH AMERICA, INC.

7. Remove bleeding device from brake fluid reservoir and screw cap on. The brake fluid level in the brake fluid reservoir must be between the MIN and MAX markings once the vehicle has been filled and bled. Adjust the brake fluid level if necessary.

8. Generate vacuum in brake booster by starting engine. Check brake-pedal travel and pedal feel.

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