Remove/install oil pump radial shaft sealing ring - AR27.40-P-0300EWM

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TRANSMISSION 725.0

Torque converter removed

Fig 1: Oil Pump Radial Shaft Sealing Ring Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Notes on automatic transmission		AH27.19-P-0001-01NKB
	Remove
1	Pry out radial shaft sealing ring (2) from the oil pump firewall cover (3)	Do not damage seat of radial shaft sealing ring (2). Otherwise, oil loss and therefore damage and/or destruction of the transmission may occur. 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.
	Install
2	Install radial shaft sealing ring (2) flush using drift (01)	Replace radial shaft seal (2). Coat radial shaft sealing ring (2) between sealing lips with a little multi-purpose paste.
2		Drift	Fig 2

Fig 2: Identifying Drift (725 589 00 15 00)

Courtesy of MERCEDES-BENZ USA