Remove/Install Auxiliary Oil Pump For Automatic Transmission - AR27.30-P-0651LW

Transmission 722.9 in model 205 

Fig 1: Automatic Transmission Auxiliary Oil Pump Components Location - Transmission 722.9 In Model 205

Courtesy of MERCEDES-BENZ USA

	Notes on automatic transmission		AH27.19-P-0001-01NKB
	Remove/install
1	Remove bottom engine compartment paneling		AR61.20-P-1105LW
2	Remove drain screw from oil pan on transmission	Do not pry off overflow pipe from the base o the oil pan. Drain screw to oil pan	*BA27.10-P-1001-03D
3	Release and disconnect electrical connection (1) from electric transmission oil pump (M42)
4	Remove bolts (2) and detach electric auxiliary oil pump (M42)	Bolt, transmission auxiliary oil pump to transmission housing	*BA27.55-P-1009-01D
5	Pry out left and right fitting (3) from electric auxiliary oil pump (M42)	: Check fitting (3) with sealing ring on intake and thrust sides for damage and replace if necessary. Insert the fitting (3) not into the transmission, but into the electric auxiliary oil pump (M42).
6	Install in the reverse order
7	Fill transmission with transmission fluid	Transmission 722.96 in model 205	AR27.00-P-0270SYZ
		Transmission 722.9 (except 722.96/97) in model 205	AR27.00-P-0270W
	Check
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
8	Perform engine test run and check transmission for proper function and leaktightness.

AUTOMATIC TRANSMISSION OIL PAN

Number	Designation		Transmission 722.9
BA27.10-P-1001-03D	Drain screw to oil pan	Nm	22

OIL COOLING

Number	Designation		Transmission 722.9
BA27.55-P-1009-01D	Bolt, transmission auxiliary oil pump to transmission housing	Nm	8