Mercedes-Benz ML320. Manual — part 135

Fig. 1: Removing & Installing Oil Pump
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me

Remove/Install

1 - Remove transmission with torque converter. See REMOVE/INSTALL TRANSMISSION WITH
TORQUE CONVERTER.

2 - Put transmission down on workbench. See Fig. 1.

3 - Take transmission housing (1) off torque converter housing (2). See Fig. 1.

4 - Pull torque converter housing (2) off transmission housing (1).

5 - Unscrew internal Torx drive bolts (4a) of oil pump (4).

6 - Screw two opposed bolts (a) into the oil pump housing (4) and press the oil pump (4) out of the
converter housing (2) by applying light blows with a plastic hammer.

Inspect

7 - Check oil pump (4).

8 - Check teflon rings (5a) of multi-disk brake B1 (5), replace if necessary.

9 - Install in the reverse order.

NOTE:

Internal Torx drive bolts (2a) 15 bolts and internal Torx drive bolts (1a) 2
bolts.

NOTE:

The intermediate panel (6) on the torque converter housing (2) can usually
be used several times. The panel must not be coated with sealant.

NOTE:

Bolt, transmission housing to converter housing. See Fig. 2.

NOTE:

Ensure that the multi-disk clutch K1 (3) does not fall out.

NOTE:

Bolt, oil pump with multi-disk brake B1 to converter housing. See Fig. 2.

NOTE:

According to condition: Dismantle and assemble oil pump. See
DISMANTLING & ASSEMBLING OIL PUMP.

NOTE:

Insert both teflon rings (5a) into groove with grease so that the joint stays
together.

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me

Fig. 2: Torque Converter Housing Tightening Torques
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Dismantling & Assembling Oil Pump

1 - Remove pump gears (22 and 23) from pump housing. See Fig. 3.

2 - Check radial seal ring (24), replace if necessary.

3 - Replace O-ring (25).

4 - Lubricate pump gears and place in the pump housing. Insert pump gear (22) so that the charger
(arrow) points towards the pump housing.

CAUTION: Use ATF oil.

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me

2001 Mercedes-Benz ML320

1998-03 AUTOMATIC TRANSMISSIONS Complete Transmissions - ML 320 - 722.662

me