Remove/install axle tube - AR35.10-P-0070MCC

MODEL 451.3/4

Illustrated on model 451.30

Fig 1: Identifying Axle Tube Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Axle Tube Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes.	Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on repairs to brake system		AH42.00-P-0003-01A
1	Risk of death caused by vehicle slipping or toppling off of the lifting platform. Raise vehicle with vehicle lift	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
2	Remove underfloor panels	Rechargeable drill/screwdriver
3	Remove maintenance panel from left bulkhead	On model 451.490
4	Remove bulkhead wall	On model 451.4, except model 451.490 * for USA only	AR61.25-P-6600MCU
		* not for USA	AR61.25-P-6600MCC
5	Remove rear axle crossmember together with bar links		* AR35.15-P-0250MCC
6	Unhook hand brake cables (2) from the pull rod rocker (3), compress locking devices on the hand brake cables (2) and guide hand brake cables (2) out of the support on the frame-type integral support (4)	Sleeve	Fig 4
7	Unscrew plastic nut (5), open folding clamp (6) using a suitable tool and take it off	Observe installation position of brake lines (7) and electrical line for left rear rpm sensor as for the right rear rpm sensor.
8	Expose and disconnect rpm sensor connector (L6/3x1 and L6/4x1)
9	Check bolted connections of brake lines (7) with the brake hoses of the rear axle (8) for color coding	: Mark brake lines (7) accordingly.	AR42.10-P-0013-05MCC
10	Undo and disconnect bolted connections of brake lines (7) with brake hoses for rear axle (8)	Collect brake fluid which runs out in a suitable container. Seal brake lines (7) and brake hoses of rear axle (8) using suitable stop plugs.	*BA42.10-P-1002-04E
		Box wrench bit	Fig 3
		Box wrench bit	Fig 5
		: If a brake line (7) with red color coding is released, then this brake line (7) has to be replaced. See: ↓ Remove/install brake line from the ESP hydraulic unit to the rear axle * for USA only	AR42.10-P-0035MCU
		* not for USA	AR42.10-P-0035MCC
11	Support axle tube (1) with major assembly lifting platform	Major assembly lifting platform
12	Remove left and right rear springs	* for USA only	AR32.20-P-0230MCU
		* not for USA	AR32.20-P-0230MCC
13	Counterhold nuts (9) and remove bolt (10)	Replace self-locking nut (9).	*BA35.10-P-1002-01F
14	Lower the major assemblies lifting table with the axle tube (1) and pull forward under the vehicle
15	Unclip hand brake cables (2) and rear brake lines (11) from the corresponding brackets on the axle tube (1)	When replacing the axle tube (1).
16	Check bolted connections of rear brake lines (11) with the brake hoses of rear axle (8) for color coding	When replacing the axle tube (1). : Mark rear brake lines (11) accordingly.	AR42.10-P-0013-05MCC
17	Loosen and disconnect bolted connections of the rear brake lines (11) with the brake hoses of rear axle (8), detach retaining clamps (12) and remove brake hoses of rear axle (8)	When replacing the axle tube (1). Collect brake fluid which runs out in a suitable container. Seal rear brake lines (11) and brake hoses of rear axle (8) using suitable stop plugs.	*BA42.10-P-1002-04E
		Box wrench bit	Fig 3
		Box wrench bit	Fig 5
		: If a rear brake line (11) with red color coding has been detached, this rear brake line must be replaced (11). See: ↓ Remove/install left rear brake line * for USA only	AR42.10-P-0036MCU
		* not for USA	AR42.10-P-0036MCC
		Remove/install right rear brake line * for USA only	AR42.10-P-0037MCU
		* not for USA	AR42.10-P-0037MCC
18	Remove rpm sensor from the rear axle	When replacing the axle tube (1). * for USA only	AR42.30-P-0714MCU
		* not for USA	AR42.30-P-0714MCC
19	Remove bolts (13) of wheel hubs (14)	When replacing the axle tube (1).	*BA35.20-P-1001-07B
20	Remove complete wheel hubs (14) with wheel brake, hand brake cable (2) and rear brake line (11)	When replacing the axle tube (1).
21	Remove holder of hand brake cable (2) and rear brake lines (11) from axle tube (1)	When replacing the axle tube (1).
22	Remove covering (15) of rear axle springs from axle tube (1)	When replacing the axle tube (1).
23	Install in the reverse order
24	Bleed brake system	* for USA only	AR42.10-P-0010MCU
		* not for USA	AR42.10-P-0010MCC
25	Perform wheel alignment check	Depending on the workshop equipment select between the measurement variant with recording the vehicle level or without recording the vehicle level. without recording the vehicle level	AR40.20-P-0200MCC
		with recording the vehicle level	AR40.20-P-0200MCE