Changing ATF

→ Let the fluid cool down.

→ Wear personal protective gear.

→ Protect components from dirt and contamination.

→ Clean or replace dirty components.

→ Do not start the engine.

→ Do not tow the vehicle.

1. Remove cross-strut for front-axle carrier.
   1. 1.1. Unscrew fastening screws.
   2. 1.2. When removing the cross-strut, unclip line -1-  .

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   Information 

   • The engine must not be started if there is no ATF in the transmission.
   • Risk of damage to the transmission.
2. Unscrew ATF oil drain plug on the ATF oil pan and drain ATF.

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3. Replace ATF filter.
   1. 3.1. Unscrew ATF filter housing cover -1-  .
   2. 3.2. Remove ATF filter -2-  in -direction of arrow -  .
   3. 3.3. Drain ATF.
   4. 3.4. Insert new  ATF filter -2-  .
   5. 3.5. Fit ATF filter housing cover -1-  with a new  sealing ring and tighten it.

      Tightening torque 8 Nm (6 ft. lb.) 

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4. Fit ATF oil drain plug with a new  sealing ring and tighten it.

   Tightening torque for ATF drain plug: Tightening torque 45 Nm (33 ft. lb.) 

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5. Fill manual metering pump 6563/3 from the Transmission fluid filler pump set WE 1372  with ATF for the double clutch transmission.
6. Unscrew ATF inspection plug.
   1. 6.1. Replace inspection plug.

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   Information 

   • Change the ATF when the engine/transmission is cold.

   Information 

   • Only part of the total change quantity can be filled because of the test specifications stipulated for the ATF.
   • The remaining quantity must then be filled as described under Checking and topping up ATF  .
7. Fill in ATF.
   1. 7.1. Fill in ATF using pump 6563/3  from the Transmission fluid filler pump set WE 1372  until ATF emerges from the inspection opening.
   2. 7.2. Start the engine and then stop it again after 20 seconds.
   3. 7.3. Fill in ATF again using the manual metering pump until ATF emerges from the control opening.
8. Screw in new ATF inspection plug, but do not tighten.

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9. To check that the fill level is correct, perform the procedure for checking ATF.

   → 370235 CHECKING AND TOPPING UP ATF .

10. Install cross-strut for front-axle carrier.

    Tightening torque for screws (2x) for front cross-strut: Initial tightening 90 Nm (67 ft. lb.) Final tightening +90° 

    Tightening torque for screws (4x) for rear cross-strut: Initial tightening 90 Nm (67 ft. lb.) Final tightening +135° 

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11. Further assembly is carried out in reverse order.