Manual: 2011/2012 911

Page: 185

Brake Fluid Level

  • Please see the chapter "EXERCISE EXTREME CAUTION WHEN WORKING ON YOUR VEHICLE" on page 179.
  • Use only new (unused) Original Porsche brake fluid.

Swallowing Brake Fluid

Brake fluid is hazardous to your health, and may be fatal if swallowed.

  • Keep brake fluid out of children's reach.
  • If brake fluid gets into your eye, immediately rinse with clean water for a few minutes. Then see a doctor immediately.
  • Please note all the information on the refill container of the brake fluid.


Brake fluid attacks paintwork and other surfaces.

  • Take care while topping off brake fluid not to soil the luggage compartment or items of luggage.


Example: 911 Carrera, 911 Carrera S

Checking the brake fluid level
The reservoir for the hydraulic braking and clutch systems is located in the luggage compartment.

  1. Open and remove cover flap A.
  2. Regularly check the brake-fluid level on the transparent expansion tank through the window B.
    The fluid level should always lie between the minimum and maximum marks.


A slight decrease in the fluid level due to wear and automatic readjustment of the disc brakes is normal.

If, however, the fluid level falls markedly or below the minimum mark, the braking system may have developed a leak.

  • Have the brake system checked without delay at an authorized Porsche dealer.

Changing the brake fluid
Brake fluid absorbs moisture from the air over time. This accumulation of water lowers the boiling point and, under certain operating conditions, can affect the braking performance.

Therefore have the brake fluid changed in accordance with the change intervals stated in the brochure "Maintenance".