Removing and Installing Fuel Gauge Sending Unit - ra4700602700dx(7000)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Model 140 with Engine 603.97

Preceding work:

Operation no. of operation texts and work units or standard texts and flat rates: 47-7000

D. Model 140

Fig 1: Identifying Fuel Gauge Sending Unit, O-Rings And Sealing Flange

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.


Pay attention to safety precautions!
Pressure in fuel tank	release by opening cap, fitting on.
Ground cable	disconnect at battery, connect.
Cover for fuel tank	remove, install.
Coupling (arrow) of fuel gauge sending unit (B4)	unplug, plug in.
Sealing flange (65)	unscrew, screw on.
	If fuel tank is full, pump out about 8 liters. Tightening torque 39 Nm.
O-rings (65/1)	replace.
Fuel gauge sending unit (B4)	remove, install. Empty by running if necessary. NOTE: If new part, remove adhesive strip and locking pin.