Checking And Topping Up ATF Fluid: Tools

Fig 1: Identifying Special Tool - ATF Filling System

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Use only ATF approved by Porsche.

Fig 2: Removing ATF Drain Plug

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Test conditions: 

• The transmission must not be in the reduced driving program.
• The ATF temperature must lie between 30°C and 45°C. Checking ATF at an insufficient ATF temperature causes overfilling, while checking at an excessive ATF temperature causes underfilling.
• Selector lever in position "P" and engine idling.
• Air conditioning and heater must be switched off.
• The vehicle must be horizontal.

1. Suspend filled ATF container (special tool V.A.G 1924 ) as high as possible on the vehicle.
2. Place oil collection pan under the transmission.
3. Connect Porsche System Tester 2 and call up ATF temperature.
   NOTE:

   • At the beginning of the check, the ATF temperature must not exceed 40°C.
4. Move selector lever to position "P" and let engine idle.
5. Put on safety goggles and unscrew ATF filler screw (2). If ATF emerges from the bore of the filler screw (2) and the ATF temperature is 30 °C...40°C, the ATF level is correct.
   Fig 3: Removing ATF Filler Screw

   Courtesy of PORSCHE OF NORTH AMERICA, INC.
6. Screw in ATF filler screw with new sealing ring and tighten to 80 Nm (59 ft.lb).
   NOTE:

   • The filler screw must be closed by the time the ATF temperature reaches 45°C.
7. If no ATF emerges from the filler screw (2) although approximately 40°C has been reached, ATF must be topped up.
8. Top up ATF with special tool V.A.G 1924 until excess ATF emerges at the bore (2).
   NOTE: The filler hook must be carefully inserted into one of the openings in the ATF guard cap (4), which is set on the filler bore. Do not push filler hook upwards, otherwise the oil guard cap (4) can jump up and off.