Measuring axial play of output shaft/rear cover - AR27.50-P-0740-06A

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.

TEST VALUES OF GEAR SET

Number	Designation		Transmission 722.5
BE27.50-P-1002-01A	Axial play between output shaft and rear cover	mm	0.4

Fig 1: Identifying Measuring Disc (129 589 06 23 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying Wrench Socket (126 589 02 09 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Determine dimension "a" by placing the measuring disc (028) on the sealing surface of the rear cover.
Measure from the measuring disc (028) to the bearing inner race of the ball bearing (67) using a depth gauge.

Fig 3: Identifying Dimension a
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Mount measuring disc (028) and joint flange.
Lock the parking lock pawl in position as a steady.
Tighten collared nut (62) to 100 Nm.
Mount gasket (72).

Fig 4: Identifying Measuring Disc, Collared Nut And Gasket
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Measure dimension "b" by measuring from the measuring disc (028) to the gasket (72) using a depth gauge.
Adjust axial play "E" with shims in accordance with the calculation example.
Calculation example :

Dimension "a" 118.80 mm

Dimension "b" 116.90 mm

Difference 1.90 mm

Axial play "E" 0.40 mm

Shims 1.50 mm

The shims on the driver race are available as a spare part in thicknesses of 0.5, 0.6, 0.7, 0.8 and 0.9 mm.
Remove measuring ring and joint flange.

Fig 5: Identifying Dimension b
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.