Replacing Brake Fluid

WARNING: Danger of injury and damage from brake fluid!

Poisonous if swallowed!
Irritation and damage to skin
Avoid contact with paint surfaces
→ Store brake fluid in suitable, labelled containers only

→ Wear protective gloves and goggles

→ In the event of contact (eyes or skin), wash immediately with water

→ In the event of contact with paint surfaces, wash off immediately with water - do not wipe off

Information

Observe the brake fluid quality. Only use new DOT4 brake fluid (Hydraulan 404).
Brake fluid can be ordered using the Spare Parts Information (PET).
There are two bleeder valves on the brake calliper. Brake fluid must be drained at both bleeder valves. Observe the sequence: Bleed the outer bleeder valve first.

Unscrew cap on the brake fluid reservoir -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cap on brake fluid reservoir
Tighten adapter on brake fluid reservoir hand-tight.
> VAS 6860 - Brake filling and bleeding device must be connected to adapter.
Switch on > VAS 6860 - brake filling and bleeding equipment . Set the bleeding pressure to 2 bar.
Information

Use a transparent hose and a collecting bottle to check the escaping brake fluid for cleanliness, absence of air bubbles and to determine the amount of brake fluid used.
Change the brake fluid.
1. 5.1 Push collecting bottle hose onto the rear right bleeder valve.
2. 5.2 Open bleeder valve on the brake calliper.
3. 5.3 Leave the bleeder valve open until clear, bubble-free brake fluid emerges. Then, close the bleeder valve.
4. 5.4 Remove breather hose.
5. 5.5 Repeat the procedure on all bleeder valves on the brake callipers in the sequence rear right/rear left/front right/front left.
6. 5.6 Tighten bleeder valve.
  Front bleeder valves (grey cast iron/PSCB):
> Tightening torque 14 Nm (10.5 ftlb.)

Front bleeder valves (PCCB):

> Tightening torque 20 Nm (15 ftlb.)

Rear bleeder valves (grey cast iron/PSCB):

> Tightening torque 14 Nm (10.5 ftlb.)

Rear bleeder valves (PCCB):

> Tightening torque 20 Nm (15 ftlb.)
Switch off > VAS 6860 - brake filling and bleeding equipment and disconnect from the adapter.
Unscrew adapter on brake fluid reservoir.
Visually check the brake fluid level and correct, if necessary. The brake fluid level must be between the MIN and MAX markings -1- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Min/Max markings for brake fluid
1. 8.1 Correct the fluid level as required if necessary.
Tighten cap -1- by hand.

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Cap on brake fluid reservoir