Checking fluid level for power-assisted steering

Installation Location:

The reservoir is located in the engine compartment.

Fig 1: Checking steering fluid

Courtesy of PORSCHE OF NORTH AMERICA, INC.

There are 2 marks on the dipstick located on the cap. There is a "Cold" mark for when the engine is cold → Cold mark: approx. 20 °C and on the other surface for when the engine is hot, "Hot" → Hot mark: approx. 80 °C .

Check the fluid level (Pentosin CHF 11 S) when the engine is off and cold → Cold mark: approx. 20 °C .

1. Start engine and → duration: approx. 20 s allow to run at idle speed. Switch off engine.

2. Open engine cover. Open reservoir cap.

3. Wipe off the dipstick. Close and then reopen the cap. The fluid level should lie in the hatched area beneath the "Cold" mark (mark = maximum level) at → Cold mark: approx. 20 °C . Top up with Pentosin if necessary. The upper "Hot" mark is intended for a fluid temperature of → Hot mark: approx. 80 °C .

Do not add too much Pentosin! The respective marks are for the maximum fluid level at the "COLD" or "HOT" temperature.

If assembly work was performed previously, check fluid level with the engine idling and without operating the steering.

Multiple steering movements (maneuvering) with the engine switched off change the fluid level in the reservoir - fluid level rises. In this case, the engine must be run for at least 20 seconds immediately prior to the fluid level check.

When topping up or filling in Pentosin, make sure that it does not come into contact with the coolant hoses! If coolant hoses come into contact with Pentosin, thoroughly clean them with water IMMEDIATELY! Replace visibly swollen coolant hoses!