Porsche 996 TT Repair Manual page 795

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 °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.
• 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 °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 in order. If there is enough ATF fluid in the transmission, then
Checking and topping up the ATF
einordnung
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