Install new radial sealing ring at drive pinion gear (with differential installed) - AR35.31-P-0530I

Rear axle differential dia. 198 in MODEL 220.063/065/067/083/084/087/165/167/183/184/187 

Rear axle differential dia. 210 in MODEL 215.375/378, 220.025/026/028/070/075/126/128/170/175/178 rear axle differential 210E 

Shown on rear axle differential dia. 198 mm 

Fig 1: Installing Radial Sealing Ring At Drive Pinion Gear - Shown On Rear Axle Differential

Courtesy of MERCEDES-BENZ USA

20.3.04	Oil filler/drain screw on rear axle differential modified	Phased in as of 19.01.04 The oil filler screws and oil drain screws should always be replaced after being unscrewed. The new oil filler screws and drain screws as well as the tapped holes must be cleaned with a special cleaning spray and provided with a special sealing compound.	BT35.31-P-0015-01A
	The oil drain screw must always be replaced after being unscrewed from the rear axle differential.		AR35.31-P-0520-06I
	The new oil drain screw as well as the tapped hole must be cleaned with a special cleaning spray and the oil drain screw must be provided with a special sealing compound The oil filler screw should always be replaced after being unscrewed from the rear axle differential.	Only carry out oil level check at interior temperature.	AR35.31-P-0520-03I
	The new oil filler screw as well as the tapped hole must be cleaned with a special cleaning spray and the oil filler screw provided with a special sealing compound
12.7.04	Value changed from 1.2 Nm to 1.1 Nm	Value in row 1001 rear axle differential changed for model 220.063/065/067/083/084/087/165/167/183/184/187	*BF35.31-P-1001-01J

	Remove/install
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.
	Notes on self-locking nuts and bolts
1	Raise vehicle
2	Drain oil from rear axle differential		AR35.31-P-0520-06I
		Loctite 7063 cleaning spray (150 ml)	*BR00.45-Z-1046-04A
		Sealant, Omnifit 100H (50 g)	*BR00.45-Z-1061-01A
		Oil drain screw	*BA35.31-P-1003-02A
	Oil filler/drain screw on rear axle differential modified	Phased in as of 19.01.04	BT35.31-P-0015-01A
3	Remove exhaust system from flange connection back	Refer to: Exhaust system, removal and installation of complete system:
		Engine 112, 113
		Engine 137	AR49.10-P-7000L
		Engine 613	AR49.10-P-7000M
		Engine 628	AR49.10-P-7000MB
4	Detach rear axle shafts (37) from the connecting flanges	Move the rear axle shaft into approximately the horizontal position and push together. Remove rear axle shaft from connecting flanges at a downward angle and tie up on rear axle carrier. Replace self-locking bolts and shims. Lightly oil bolts at thread and bolt head contact surface.
			*BA35.30-P-1002-01A
5	Remove bolts for propeller shaft intermediate bearing (106a).		*BA41.40-P-1001-01A
6	Detach rear propeller shaft assembly (106) from rear axle differential (50).	Flex disk remains on propeller shaft.
		Connect rear propeller shaft to rear axle differential	AR41.10-P-0050-04I
			*BA41.10-P-1002-01A
7	Loosen fitting sleeves on flexible couplings.	Tie up propeller shaft to one side.	AR41.10-P-0050-09I
	Drift for loosening fitting sleeves in flex disks.		WF58.50-P-4110-01A
	Measure
8	Measure and note down total friction torque of drive pinion		AR35.31-P-0530-04I
		Connection piece	Fig 2
		Torque meter	Fig 3
		Wrench socket
9	Slacken and unscrew hexagon collar nut (40)	Do not remove the collar protection when slackening hexagon collar nut.
		Pin wrench Wrench socket To improve guidance when loosening the hexagon collar nut, press a shop-made bush into the commercially available socket wrench bit: ↓	Fig 4
		Pressing bush for wrench socket	WF58.50-P-3531-02A
		Replace hexagon collar nut and tighten in stages until the previously measured friction torque is obtained.
		Observe minimum tightening torque, if necessary if tightening torque is not achieved: ↓	*BA35.31-P-1001-01A
		Rear axle differential dia. 198 mm: Replace flexible spacer sleeve, see: ↓
		Disassembling and assembling rear axle differential, adjusting gear set Rear axle differential dia. 210 mm in rear axle differential 210E: If the minimum tightening torque is not reached, install new rear axle differential.	AR35.31-P-0550A
		Secure twelve point collar nut or hexagon collar nut at joint flange of drive pinion.	AR35.31-P-0530-01B
		Chisel for securing collar nut on joint flange	WF58.50-P-3531-01A
10	Detach joint flange (41).	If necessary , use puller:
		Puller	Fig 5
	Radial sealing ring and joint flange on drive pinion modified	As of 15.01.02 with model 220 with rear axle differential dia. 198 mm and with model 215, 220 with rear axle differential dia. 210 mm in rear axle differential 210E	BT35.31-P-0012-01C
11	Press out radial sealing ring (42) using a suitable tool	Replace radial sealing ring and coat the lip with universal hypoid transmission oil.
	Universal hypoid gear oils		BB00.40-P-0235-07A
		Drift for pressing in the previous radial sealing ring version	Fig 6
	Radial sealing ring and joint flange on drive pinion modified	As of 15.01.02 with model 220 with rear axle differential dia. 198 mm and with model 215, 220 with rear axle differential dia. 210 mm in rear axle differential 210E	BT35.31-P-0012-01C
		Drift for pressing in the new radial sealing ring version	Fig 7
12	Remove rear axle differential breather (55)		*BA35.31-P-1005-02A
13	Install in the reverse order
14	Check oil level in rear axle differential and correct if necessary	Mixing of old universal hypoid gear oil and the new FE hypoid gear oil should be avoided due to the better fuel economy.	AR35.31-P-0520-03I
		Filling capacity of rear axle differential	*BF35.31-P-1001-01J
		Loctite 7063 cleaning spray (150 ml)	*BR00.45-Z-1046-04A
		Sealant, Omnifit 100H (50 g)	*BR00.45-Z-1061-01A
		Oil filler screw for rear axle differential	*BA35.31-P-1002-02A
	Oil filler/drain screw on rear axle differential modified	Phased in as of 19.01.04	BT35.31-P-0015-01A

Fig 2: Identifying Connecting Piece (100 589 02 59 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Torque Meter (001 589 49 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Pin Wrench (129 589 01 07 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Puller (129 589 01 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Drift (140 589 08 15 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Drift (140 589 13 15 00)

Courtesy of MERCEDES-BENZ USA