Flushing Out Oil Cooler Lines And Oil Cooler - AR27.55-P-0001GW

TRANSMISSION 722.9 in MODEL 463 as of model year 2013/facelift 2012 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Flushing
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
		Before opening the hydraulic system the area surrounding the separation point should be cleaned thoroughly. Even the smallest dirt particles, introduced into the hydraulic components, can lead to malfunctions and a total failure of the hydraulic system.
1	Remove drain plug from the transmission oil pan and drain transmission oil
2	Connect hand pump (2) to reservoir (3)	Observe connection direction.
			Fig 1
3	Fill reservoir (3) with transmission oil
	Automatic transmission fluids (ATF, Sheet 236.12)		BB00.40-P-0236-12A
4	Detach oil cooling lines (5) from transmission
5	Attach hose to connection fitting (1) and connect to an oil line (5) using a corresponding connector (4)	If necessary secure the hose on the connection fitting (1) using a hose clamp.
6	Connect a second hose to the other oil cooling line (5) using a corresponding connector (4)
7	Operate hand pump (2) and flush out oil cooler and oil cooling lines (5) with transmission oil	In the event of severe contamination, change the transmission oil several times.
		Collect transmission oil which flows out in a container. Ensure that the transmission oil flows freely.	Fig 1
8	Detach plastic hose from connection fitting (1)
9	Remove connectors (4) from oil cooling lines (5)
10	Install oil cooling lines (5) to transmission	Replace gaskets.
			*BA27.55-P-1002-01D
11	Screw in drain screw of transmission oil pan		*BA27.10-P-1001-03D
12	Fill transmission with gear oil	Follow the prescribed work procedure exactly and observe the Specifications for Operating Fluids. Otherwise the transmission may be damaged.	AR27.00-P-0270W
13	Read out and erase the fault memory using Star Diagnosis		AD00.00-P-2000-04A

Fig 1: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA