Remove/install complete rear axle · ar3510w0010i · Mercedes-Benz WIS

AR35.10-W-0010I

Remove/install complete rear axle

26.4.12

REAR AXLE 740.8, 748.21 /23 /26 /27 /7
1st driven rear axle on vehicles with 2 driven, steel-sprung rear axles

W35.10-1010-09

1 Compressed-air line

2 Vent line

3 Connector (brake wear sensor line)

4 Plug (brake wear sensor)

5 ALB linkage

6 Plug (differential lock, interwheel differential lock)

12 Spherical washers

13 Rod mount

14 Trailing arm

15 Bolts

16 Screw

17 Triangular control arm

18 Rod mount

7 Differential lock compressed-air line (inter-wheel differential lock)

8 Plug (differential lock, interaxle differential lock)

9 Compressed air line (differential lock, interaxle differential lock)

10 Leaf spring

11 Mounting plate

 	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Remove wheels		AR40.10-W-1100A
2	Support vehicle on its frame
3	Remove ABS sensor		AR42.30-W-0150A
4	Disconnect compressed-air lines (1) from combination cylinder	With compressed air connection system "VOSS 230".	AR42.10-W-0900A
		With compressed air connection system "VOSS 232" (NG 8, 12) or "SCHÄFER SDF" (NG 6).	AR42.10-W-0900C
		 Installation: Check O-rings and replace if necessary.
	Notes on compressed air connection systems		AH00.18-N-0001-01A
5	Disconnect sensor line connector (3) of brake wear sensors	 On sensor lines without plug connection, unplug connector (4) directly from brake wear sensor.
6	Disconnect plug (6 and 8) and compressed air line (7 and 9) from differential locks
7	Disconnect vent line (2) from axle housing
8	Detach ALB linkage (5)
9	Detach compressed air distributor from axle housing	 Do not disconnect lines.
10	Detach lines and wiring harnesses fastened to the axle housing and tie to one side with the compressed air distributor
11	Remove shock absorber		AR32.25-W-0110A
12	Detach propeller shafts on drive flange and output flange of through-drive axle	 Secure propeller shafts to prevent them from falling down.	AR41.10-W-0050A
13	Detach wishbone control arm (17) from link bracket (18) on axle housing and secure to prevent it from falling		*BA35.15-N-1001-03A
14	Detach trailing arm (14) from link brackets (13) under axle housing		*BA35.15-N-1006-03A
15	Raise rear axle until leaf springs (10) are unloaded and secure axle to prevent it falling	 Use a jack or inspection pit lift.
16	Detach link bracket (13) with spherical washers (12) on right and left of the axle housing and remove mounting plates (11)	 Installation: Replace bolts (15) and install with spherical washers (12). Install the longer bolts at the shock absorber end.
			*BA35.10-N-1003-03B
17	Lower rear axle and pull out below vehicle
18	Install in the reverse order

 Rear axle

Number	Designation		Rear axle 740.8	Rear axle 748.2 except 748.282


BA35.10-N-1003-03B	Bolt, link bracket to rear axle to rubber mount	Nm	520	520

 Rear axle

Number	Designation		Rear axle 748.7


BA35.10-N-1003-03B	Bolt, link bracket to rear axle to rubber mount	Nm	520

 Control arm

Number	Designation			Rear axle 740	Rear axle 748


BA35.15-N-1001-03A	Bolt, wishbone control arm to bearing bracket on rear axle	M24	Nm	690	690
BA35.15-N-1006-03A	Nut, control arm to link bracket		Nm	520	520

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