Checking and Topping Up ATF

Checking and topping up ATF (as of model year 2002)





Tools








Checking ATF

Information
^ The stipulated fluid level is extremely important for perfect functioning of the automatic transmission. It is correct if there is a slight amount of ATF escaping at the control screw bore -B- at temperatures between 30° C and 40° C.





Testing conditions:

^ The transmission must not be in the reduced driving program.
^ The ATF temperature must be between 30° C and 40° C. An ATF inspection at an insufficient ATF temperature causes over-filling and an inspection at an excessive ATF temperature causes insufficient filling.
^ Start the engine and, with the brake pedal depressed, engage each of the selector lever positions (P, R, N and D) three times in sequence for 3 seconds each time.
^ Selector lever in position "P" and engine idling.
^ The air-conditioning system and the heater must be switched off.
^ The vehicle must stand horizontally.

1. Place oil collection pan under the transmission.
2. Connect the Porsche System Tester 2 and call up the ATF temperature.

Information
^ The ATF temperature must not be higher than 40° C at the start of the test.

3. Move selector lever to position "P" and allow engine to idle.

Warning
Danger of injury from emerging ATF fluid! ATF fluid can cause burns and chemical burns to the eyes!
^ Wear protective goggles





4. Unscrew control screw -B-. If ATF escapes from the control bore and if the ATF temperature is 30° C to 40° C the ATF level is OK.
5. If no oil escapes from the control bore even though approx. 40° C has been reached, the ATF must be topped up.

Information
^ The control screw must be closed no later than when an ATF temperature of 45° C is reached.

6. Screw in ATF control screw with a new sealing ring.

Tightening torque: 22 Nm (16 ftlb.)

Topping up ATF

Information
^ The test conditions also apply for topping up.
^ Top up only with ATF approved by Porsche.

Information
^ To undo and tighten the cap nut on the filling valve, counter with an open-ended wrench.

1. Screw off cap nut for the filling valve.





2. Screw special tool 9507/1 -A- onto the filling valve and top up ATF via the filling valve until excess ATF emerges at the control bore.
3. Replace sealing ring for cap nut.
4. Screw on cap nut for filling valve.

Tightening torque: 40 Nm (30 ftlb.)