Remove/install oil pump - AR27.10-P-0400A

TRANSMISSION 722.6 

Fig 1: Identifying Oil Pump Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Remove transmission with torque converter	Model 129, 140, 170, 202, 208, 210	AR27.10-P-0500B
		Model 163	AR27.10-P-0500GH
		Model 203 without 4MATIC, 209	AR27.10-P-0500P
		Model 203 with 4MATIC	AR27.10-P-0500PW
		Model 211 with 4MATIC	AR27.10-P-0500TW
		Model 215, 220 without 4MATIC	AR27.10-P-0500I
		Model 220 with 4MATIC	AR27.10-P-0500IW
2	Put transmission down on workbench
3	Take transmission housing (1) off torque converter housing (2)	Internal Torx drive bolts (2a) 15 bolts and internal Torx drive bolts (1a) 2 bolts. The intermediate panel (6) on the torque converter housing (2) can usually be used several times. The panel must not be coated with sealant.
		Bolt, transmission housing to converter housing	*BA27.40-P-1002-01A
4	Pull torque converter housing (2) off transmission housing (1)	Ensure that the multi-disk clutch K1 (3) does not fall out.
5	Unscrew internal Torx drive bolts (4a) of oil pump (4)	Bolt, oil pump with multi-disk brake B1 to converter housing	*BA27.40-P-1003-01A
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)	According to condition: ↓
		Dismantle and assemble oil pump	AR27.50-P-0720-01A
8	Check Teflon rings (5a) of multi-disk brake B1 (5), replace if necessary	Insert both Teflon rings (5a) into groove with grease so that the joint stays together.
9	Install in the reverse order

HOUSING

Number	Designation		Transmission 722.6 except 722.660/661/662/ 663/666/673/674	Transmission 722.660/661/662/ 663/666/673/674
BA27.40-P-1002-01A	Bolt, transmission housing to torque converter housing	Nm	20	20
BA27.40-P-1003-01A	Bolt, oil pump with multi-disk brake B1 to torque converter housing	Nm	20	20