Transmission Maintenance: Checking and Topping Up ATF (As of Model Year 2002)

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

Tools







Checking ATF

NOTE: 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 degree C and 40 degree C.







Testing conditions:
- The transmission must not be in the reduced driving program.
- The ATF temperature must be between 30 degree C and 40 degree C. An ATF inspection at an insufficient ATF temperature causes over-filling and an inspection at an excessive ATF temperature causes insufficient filling.
- 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.

NOTE: The ATF temperature must not be higher than 40 degree 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 degree C to 40 degree C, the ATF level is in order.







5. If no oil escapes from the control bore even though approx. 40 degree C has been reached, the ATF must be topped up. (see topping up ATF)

NOTE: The control screw must be closed no later than when an ATF temperature of 45 degree C is reached.

6. Screw in ATF control screw with a new sealing ring
Tightening torque: 20 Nm (15 ftlb.)

Topping up ATF

NOTE:
- The test conditions also apply for topping up.
- Top up only with ATF approved by Porsche. See Parts Catalogue:


NOTE: To undo and tighten the cap nut on the charging valve, counter with an open-ended wrench.

1. Screw off cap nut for the charging valve.
2. Screw special tool 9507/1 -A- onto the charging valve and top up ATF via the charging valve until excess ATF emerges at the control bore.







3. Replace sealing ring for cap nut.
4. Screw on cap nut for charging valve.
Tightening torque: 20 Nm (15 ftlb.)

Tightening torques