Automatic Transmission Cooler and Lines Overview

Automatic Transmission Cooler and Lines Overview

• Clean working conditions for the automatic transmission. Refer to => [ Clean Working Conditions ] Clean Working Conditions.

• General repair instructions, refer to => [ Repair Information ] Repair Information.

• Seal any open lines and connections with a clean plug from the engine bung set (VAS 6122).

• Check ATF level after replacing ATF pipes. Refer to => [ ATF, Checking Level and Correcting ] ATF, Checking Level and Correcting

There is a risk of damaging the transmission.

• Remove all the plugs on the ATF pipes and on the transmission that were installed during removal.

• The ATF cooling function will not work and the transmission will be damaged if the plugs are forgotten.






1 O-ring

• Coat with ATF before inserting

2 ATF Pipe, Supply

• Connection piece on ATF cooler

• With connector coupling - 14 -

3 Bolt

• 5 Nm

• First insert the ATF pipes with new O-rings by hand as far as the stop

4 Bolt

• 9 Nm

• Secures the ATF pipe on the engine

5 ATF Pipe, Return

• From the ATF cooler to the transmission

• With connector coupling - 14 -

6 ATF Pipe, Supply

• From the transmission to the ATF cooler

7 Screw

• 23 Nm

• Secures the ATF pipe with the driveshaft heat shield

8 Nut

• 8 Nm

• Secures the ATF pipe on the engine

9 O-ring

• Coat with ATF before inserting

10 Transmission

11 Bolt

• 20 Nm

• First insert the ATF pipes with new O-rings by hand as far as the stop

• The retaining tab on the lower ATF pipe must fit inside the threaded hole in the transmission.

• The retaining tab on the upper ATF pipe must touch the bottom one.

12 O-ring

• Is installed in the connector coupling - 14 -.

• Coat with ATF before inserting

13 Clip

• To separate the connector coupling - 14 -, remove the securing clip.

• To install the ATF pipe on the connector coupling, first let the clip engage 3 times in the connector coupling.

14 Connector Coupling

• To disconnect the ATF pipe, remove the clip - 13 -.

• To install the ATF pipes, connect the clip - 13 - and replace the O-ring - 12 -.

• Slide the ATF pipes together and let them engage.

15 Connector Piece

• For the connector coupling

16 ATF Pipe, Return

• Connection piece on ATF cooler

• From the ATF cooler to the transmission

• Connected with the connector coupling - 14 -

17 ATF Cooler

• Integrated in the coolant cooler