Manual: 2011/2012 911

Page: 192

Power Steering

Power steering is assisted by hydraulic auxiliary forces.

The hydraulic fluid reservoir is located in the engine compartment.

Information
The flow noise heard at full steering lock is design-related and does not indicate a defect in the steering system.


No Power Steering Assist

When the engine is stopped (e.g. when being towed) or the hydraulic system fails, there is no assistance for steering.

Therefore, substantially more force will have to be exerted in order to steer.

  • Exercise great care when being towed.
  • Have the fault remedied at your nearest authorized Porsche dealer.

Checking hydraulic fluid

  • Please see the chapter "EXERCISE EXTREME CAUTION WHEN WORKING ON YOUR VEHICLE" on page 179.
  • Only use hydraulic fluid authorized by Porsche. Specification: Please see the chapter "CAPACITIES" on page 252.

Check the fluid level with the engine stopped and cold (approximately 68 °F/20 °C).

  1. Open the engine compartment lid.
  2. Open the reservoir cap.
  3. Wipe measuring rod.
    Close cap and reopen. The fluid level should lie between the "MIN" and "MAX" marks.
    Add hydraulic fluid if necessary.
  4. Close cap carefully.
    Close engine compartment lid.

Noticeable loss of fluid indicates leakage in the system.

The cause should be remedied immediately at an authorized Porsche dealer.

Air Filter
A dirty air filter not only reduces engine performance, but can lead to premature engine wear.

Regular filter replacement is part of the routine maintenance service.

  • In dusty conditions, check the filter element more frequently and replace if necessary.

Combination Filter
The fresh air passing through the combination filter into the passenger compartment is virtually free of dust, pollen, and unpleasant odors.

  • If the outside air is polluted by exhaust fumes, press the circulating-air button.

A dirty filter can be the cause of reduced air flow:

  • Have filter replaced by your authorized Porsche dealer.

Regular filter replacement is part of the routine maintenance service.