Removing and installing front axle - AR33.10-P-0100A: Notes

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.

MODEL 140

Fig 1: Identifying Front Axle Remove/Install Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removing, installing
1	Remove front wheels		AP40.10-P-4050Z
2	Install guard plates for brake caliper dust shields		AR42.00-P-0100-01A
2	Install guard plates for brake caliper dust shields	Guard plate	Fig 5
3	Remove front springs		AR32.20-P-0200B
4	Disconnect front axle multiple circuit junction connector (X62/6 or X62/7) in component compartment	Pull out cable harness through wheel arch
5	Disconnect P-valve connector (Y10x1) on left of front end	Expose cable harness to front axle carrier	AR46.50-P-0500-01A
6	On vehicles with ADS, disconnect connection for front axle damping valve (Y51x1/2)	Pay attention to the shock-sensitive acceleration sensor (B24/1)
7	Detach all plastic covers on the front axle
8	Raise engine		AR01.10-P-7500-03A
		Engine support bracket	Fig 2
		Supports	Fig 7
	Spacer for engine support bracket	Model 140	WF58.50-P-0145-01A
9	Remove torsion bar retaining bracket (21b)		*BA32.20-P-1003-02B
		Installation: Check torsion bar rubber mounts
	Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid.	Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.	AS42.50-Z-0001-01A
10	Unscrew brake hose (39) from brake line	Protect pipes against contamination
	Notes on installing brake hoses	Models 129, 140, 170, 202, 208, 210	AH42.10-P-9406-01A
	Notes on brake fluid	All models	AH42.50-P-0001-01A
10	Unscrew brake hose (39) from brake line	Protect pipes against contamination
		Installation: The brake hose must not be twisted after tightening.	*BA42.10-P-1001-04A
			*WH58.30-Z-1003-11A
11	Detach steering knuckle (5) from upper wishbone	Fasten steering knuckle on spring tower with one bracket	AR33.25-P-0500-01A
			*BA33.20-P-1001-01A
		Spreader	Fig 4
12	Remove heat shield on steering coupling (39a)
13	Detach steering shaft from steering coupling (2)		*BA46.10-P-1001-01A
			*BA46.10-P-1002-01A
			*BA46.10-P-1003-01A
		Observe technical modifications ↓
		Bolted connection of steering shaft and steering coupling	BT46.10-P-9110-01A
		Modified steering coupling	BT46.10-P-9111-01A
14	Support front axle carrier	Use assembly attachment	AR33.10-P-0100-03A
			Fig 6
15	Detach engine mount from front axle carrier		*BA22.10-P-1001-01B
			*BA22.10-P-1008-01A
16	Remove plastic covers (21g), detach front axle carrier (1) from front end and remove bracket (21)		*BA33.10-P-1002-01A
			*WH58.30-Z-1012-06A
17	Detach high-pressure expansion hose (29) and return line (28)	Lower the front axle slightly if necessary but take care not to stretch the lines; seal off line connections
			*BA46.20-P-1002-01A
			*BA46.20-P-1003-01A
18	Lower front axle carrier
19	Remove upper wishbone		AR33.20-P-0500A
20	Install in the reverse order	Replace self-locking bolts and nuts
21	Measure front axle carrier if necessary		AR40.30-P-0450A
22	Fill power steering pump		AR46.30-P-0010A
23	Bleed brake system on front axle		AR42.10-P-0010A
24	Carry out chassis alignment check.	Only necessary after accident repairs	AR40.20-P-0200A

ENGINE SUSPENSION, ENGINE MOUNTS, ENGINE SUPPORTS

Number	Designation			Engine 120 in model 140 with transmissions 717.4, 722.4/5
BA22.10-P-1001-01B	Bolt, engine mount to front axle carrier/body	M8	Nm	25

ENGINE SUSPENSION, ENGINE MOUNTS, ENGINE SUPPORTS

Number	Designation		Engine 104, 119 in model 140
BA22.10-P-1008-01A	Bolt of front engine mount to front axle carrier	Nm	25

FRONT AXLE TORSION BAR

Number	Designation		Model 140 up to 10/95	Model 140 as of 10/95
BA32.20-P-1003-02B	Self-locking nut, retaining bracket to front axle carrier	Nm	20	20

FRONT AXLE CARRIER

Number	Designation		Model 140
BA33.10-P-1002-01A	Self-locking bolt, front axle carrier to front end	Nm	130

WHEEL LOCATION, HUB

Number	Designation		Model 140
BA33.20-P-1001-01A	Self-locking nut, clamp connection of upper wishbone to steering knuckle	Nm	125

BRAKE LINES, BRAKE HOSES

Number	Designation		Model 140
BA42.10-P-1001-04A	Brake line to brake hose	Nm	14

STEERING SHAFT

Number	Designation			Model 140 up to veh. ident. end no. A-033 950	Model 140 as of veh. ident. end no. A-033 951 to A-166 259
BA46.10-P-1001-01A	Bolt, steering coupling	M8	Nm	25	-
BA46.10-P-1002-01A	Bolt, steering coupling	M10	Nm	-	30
BA46.10-P-1003-01A	Bolt, steering coupling	M8	Nm	-	-

STEERING SHAFT

Number	Designation			Model 140 as of veh. ident. end no. A-166 260
BA46.10-P-1001-01A	Bolt, steering coupling	M8	Nm	-
BA46.10-P-1002-01A	Bolt, steering coupling	M10	Nm	-
BA46.10-P-1003-01A	Bolt, steering coupling	M8	Nm	20

STEERING GEAR

Number	Designation		Model 140
BA46.20-P-1002-01A	Return line to steering gear	Nm	40
BA46.20-P-1003-01A	High-pressure expansion hose to steering gear	Nm	40

Fig 2: Identifying Engine Support Bracket (140 589 01 61 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Identifying Assembly Attachment (140 589 00 62 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Spreader (140 589 02 31 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 5: Identifying Guard Plate (140 589 01 31 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 6: Identifying Assembly Attachment (210 589 01 62 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 7: Identifying Supports For Engine Support Bracket (2 X) (210 589 00 61 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Commercially available tools

STEERING GEAR

Number	Designation
WH58.30-Z-1012-06A	Socket wrench bit 21 mm hexagon 1/2 inch drive
WH58.30-Z-1003-11A	Open double end box wrench a/f 8x9 mm or a/f 10x11 mm