Remove/install automatic transmission oil pan - AR27.10-P-7030W

TRANSMISSION 722.9 

Illustration shows transmission oil pan (3) without sloped surface and with black overflow tube (31) 

Fig 1: Automatic Transmission Oil Pan Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
1	Check transmission oil pan (3)
	Oil pan and overflow tube modified	Only category P with transmission 722.9 as of production date 21.6.2010 with engine 113, 156, 157, 271, 272, 273, 275, 276, 278, 642, 651	BT27.10-P-0006-01A
	Oil pan and overflow tube modified	Only category P with transmission 722.901 The transmission oil pan (3) and overflow pipe (31) have been redesigned to optimize the oil supply to the A/T. The previous transmission oil pan (3) without chamfers and with a black overflow pipe (31) after removal is to be replaced by a transmission oil pan (3) with chamfers and with a white overflow pipe (31).	BT27.10-P-0006-01W
	Clean
2	Clean transmission oil pan (3) and surrounding area thoroughly	Cleanliness is essential when working on the transmission. Otherwise, even the smallest foreign particle in the hydraulic components of the transmission can lead to malfunctions or a total failure of the transmission For cleaning, use lint-free cleaning cloth. Chamois leathers are the most suitable.
3	Drain the transmission oil and collect for determining the quantity of transmission	Remove drain screw and pry overflow pipe (31) off from the base (arrow) with drift. The remaining transmission oil drains out immediately after prying off. Replace seal.
		Oil drain screw to oil pan	*BA27.10-P-1001-03D
		Drift	Fig 2
4	Detach transmission oil pan (3) from transmission housing (1)	The sprags (3a) are only permitted for transmission 722.9 and they may not be mixed up with sprags for other transmissions. Contact corrosion can occur otherwise Replace bolts (3b).
		Screw/bolt, oil pan to transmission housing	*BA27.10-P-1002-03D
5	Remove overflow pipe (31) from the transmission oil pan (3)	The distance from the upper edge of the overflow pipe (31) to the base of the transmission oil pan (3) determines the filling capacity of the transmission. Replace overflow pipe (31) and press firmly onto the base (arrow).
6	Remove seal (33)	Do not coat any sealant or sealing component on transmission oil pan (3) and transmission housing (1). Leaks can occur otherwise. Always replace seal (33).
	Clean
7	Remove and clean the magnet (32) from the transmission oil pan (3)	Check the magnet (32) for damage and replace if necessary
8	Clean the transmission oil pan (3)	Sealing surfaces must be absolutely free of oil and grease. Leaks can occur otherwise. Have the cleaning sprays completely extracted.
9	Check oil filter (34) and replace if necessary
10	Install in the reverse order
11	Fill transmission with transmission fluid	TRANSMISSION 722.9 (except 722.96)	AR27.00-P-0270W
		TRANSMISSION 722.96 It is very essential to observe the work procedure and Specifications for Operating Fluids. Otherwise the transmission may be damaged.	AR27.00-P-0270SYZ
	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
12	Test run engine and check transmission for leaktightness and proper operation

Fig 2: Identifying Drift (722 589 03 15 00)

Courtesy of MERCEDES-BENZ USA