Remove/install front axle · ar3310p0100p · Mercedes-Benz WIS

AR33.10-P-0100P

Remove/install front axle

18.11.11

MODEL 203 (except 203.081 /084 /087 /092 /281 /284 /287 /292)

P33.10-2070-09

Modification notes

29.11.07

Value changed: Bolt, retaining plate of oil line to rack-and-pinion steering

*BA46.20-P-1001-01F

 	Remove/install
Danger!	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.	AS00.00-Z-0010-01A
Danger!	Risk of injury to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning caused by swallowing hydraulic fluid	Depressurize hydraulic system completely before starting any work on system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	If there is visible damage, e.g. crack formation or deformation of the front axle carrier, these parts must be replaced
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1.1	Deactivate easy entry/exit function	 Only vehicles with memory package (driver seat, steering column, mirrors) code 275.
		 Otherwise the driver seat and steering wheel move into a different position if the driver door is opened or closed for example. Damage to the upper frame can occur when the  holding device is installed.
		 It is switched off using the buttons on the steering wheel in the "Comfort" menu on the multifunction display, see vehicle owner's manual.
2	Extend the adjustable steering column fully or push out	 Necessary for separating steering coupling.
3	Extract fluid out of the power steering pump's fluid reservoir	 Hand pump	*210589007100
4	Mount engine carrier bracket, raise engine		AR33.10-P-0100-01P
		Engine carrier arm
5	Raise vehicle		AR00.60-P-1000P
6	Remove the front wheels
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
7	Remove rear bolts of supporting struts
8	Remove engine mount bolts	 Engine 111	*BA22.10-P-1008-01A
		 Engine 112.912 /946/961	*BA22.10-P-1001-01R
		 Engine 271	*BA22.10-P-1006-01O
		 Engine 272	*BA22.10-P-1001-01S
		 Engine 611, 612, 642, 646	*BA22.10-P-1001-01D
9	Detach heat shield from front axle carrier (1)
10	Move front wheels to straight-ahead position and secure steering wheel.	 To do this, swivel the sun visor to one side and insert the  retainer.
		 The steering wheel must not be turned when the steering coupling is detached, otherwise the clock spring contact will be destroyed.
		 Holding device	*129589012100
11	Carefully pull steering coupling out of the control valve of the rack-and-pinion steering (predetermined fracture point on control valve)	 Do not use force (hammer, strong lever action) since the lower steering shaft is sensitive to lateral impacts.
		 Installation: 
		Turn rack-and-pinion steering to center position and mount steering coupling	AR46.20-P-0600-01P
			*BA46.10-P-1001-01E
12	Detach retaining plate of oil lines on rack-and-pinion steering and pull out oil lines	  Seal off line connections using plugs.
		 Set of stop plugs	*129589009100
		 Installation: replace O-rings.
			*BA46.20-P-1001-01F
 Danger!	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
13	Unscrew brake lines on left and right of brake hose and seal openings	 Seal off line terminals immediately with  stop plugs. The brake fluid reservoir must not run completely empty.
	Brake fluid notes		AH42.50-P-0001-01A
	Notes on installing brake hoses		AH42.10-P-9406-01A
		 Box wrench bit	*000589750300
		 Set of stop plugs	*129589009100
		 Installation: The brake hoses must not be twisted after being tightened (danger of cracking).
			*BA42.10-P-1001-04A
14	Detach left front brake pad contact sensor (S10/1) from connector for brake pad wear contact sensor
	Notes on installing brake wear indicator contact sensors		AH42.10-P-0003-01A
15	Detach contact sensor plug from brake caliper		*BA42.10-P-1003-10C
16	Remove torsion bar (77)		AR32.20-P-0300P
17	Installing protective washers to protect brake disk dust shields		AR42.00-P-0100-01A
		 Guard plate	*220589013100
18	Support front subframe (1)		AR33.10-P-0100-03P
		Passenger car transmission platform gotis://A_25/35/49_02.0
19	Detach suspension strut (11) on left and right of steering knuckle		*BA32.25-P-1010-01B
			*BA32.25-P-1008-01B
		 Remove suspension strut (11) if necessary	AR32.25-P-1017P
20	Separate the rpm sensor connectors on the left and right	 Rpm sensor connectors in wheel well behind the suspension strut.
21	Remove bolts (1c) of front axle carrier (1)	 The bolts (1c) are self-tapping; pay attention to the following procedure:  Never recut the thread in the longitudinal member  Replace bolts  Use only original bolts (4 x)  Do not attach bolts at an angle when screwing in  Do not use an impact bolt tightener  Observe tightening torque
			*BA33.10-P-1003-01A
22	Lower front axle	 Secure front axle to prevent it falling.
23.1	Measure front axle carrier (1)	If necessary	AR40.30-P-0450P
24	Install in the reverse order
25	Bleed brake system		AR42.10-P-0010P
26	Fill power steering pump and bleed	Except model 203.2 with rear axle level control system code 480	AR46.30-P-0010P
		Model 203.2 with rear axle level control system code 480
27	Perform wheel alignment check		AR40.20-P-0200P

 Front axle carrier

Number	Designation		Model 203


BA33.10-P-1003-01A	Bolt, front axle carrier to front end	Nm	100