Remove/install front axle half - AR33.10-P-0200GQ

MODEL 166 

MODIFICATION NOTES

17.9.13

Bolt, brake pad contact sensor to brake caliper

MODEL 166 (except 166.074/874)

BA42.10-P-1004-10L

Shown on model 166.057 

Fig 1: Identifying Front Axle Remove/Install Components - Shown On Model 166.057

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Front Axle Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities.	No parts of the body or limbs should be within the operating area of the mechanism when the components are moving.	AS00.00-Z-0009-01A
	Risk of injury  caused by pinching or crushing when working on springs or spring bodies that are under tension	Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Notes on installing brake hoses		AH42.10-P-9406-01GZ
	Remove/install
1	Raise vehicle using vehicle lift until the wheels are clear of the ground		AR00.60-P-1000GZ
2	Empty AIRmatic using STAR DIAGNOSIS
	Notes on AIRmatic		AH32.22-P-1000-02GZ
		MODEL 166 with CODE 489 (Airmatic (air suspension with level adjustment and adaptive damping system ADS)) Empty and fill the AIRmatic as per the specifications; the complete wheels must not be touching the ground. The air springs can otherwise be damaged and fail later.	AD00.00-P-2000-04A
3	Switch off ignition
4	Detach front wheel and tire assembly
			AP40.10-P-4050EW
5	Detach collar nut of front axle shaft (11)	Only with 4MATIC
		Collar nut, front axle shaft to front axle shaft flange	*BA33.30-P-1001-02I
6	Remove corresponding underfloor paneling		AR61.30-P-1001GQ
7	Highlight the installation position of rear bearing bracket (1h) of lower control arm (1) to front axle carrier
8	Remove left front axle RPM sensor (L6/1) or right front axle RPM sensor (L6/2) from steering knuckle (2)	Unscrew bolt, remove feed line from bracket (2h) and fasten left front axle RPM sensor (L6/1) or right front axle RPM sensor (L6/2) on suspension strut (3).
		Self-locking bolt, front axle RPM sensor to steering knuckle	*BA42.30-P-1001-01G
9	Detach electrical feed line (4) on brake caliper (5)	Electrical feed line (4) available only on right brake caliper (5). Unscrew bolt, disconnect connector, remove electrical feed line (4) from bracket (2h) and fasten on suspension strut (3).
		Screw/bolt, brake pad contact sensor to brake caliper	*BA42.10-P-1004-10L
10	Remove brake hose (6) from bracket (2h)
11	Remove brake pads	MODEL 166.074/874	AR42.10-P-1610GQA
		MODEL 166 (except 166.074/874) Do not kink brake hose (6) or subject it to tension and fasten brake caliper (5) free of tension at vehicle. Otherwise, the brake hose (6) will be damaged.	AR42.10-P-1600GQ
12	Detach link rod (8) from torsion bar (9)	Carefully detach link rod (8), torsion bar (9) is under tension!
		MODEL 166 with CODE 468 (Active driving stability (stability)) MODEL 166 without CODE 468 (Active driving stability (stability))	*BA32.20-P-1002-02Q
13	Unscrew bolts (9s) on torsion bar (9)	MODEL 166 with CODE 468 (Active driving stability (stability)) MODEL 166 without CODE 468 (Active driving stability (stability))	*BA32.20-P-1001-02Q
14	Remove tie rod (10) from steering knuckle (2)	Self-locking nut, tie rod to steering knuckle	*BA46.40-P-1002-01K
15	Detach suspension strut (3) from lower control arm (1)	Self-locking nut, shock absorber to wishbone	*BA32.25-P-1002-01O
16	Support front-axle half and lash down securely	Transmission jack 0 Transmission platform
17	Detach steering knuckle (2) from upper transverse control arm (7)	Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle	*BA33.20-P-1001-01R
18	Press front axle shaft (11) out of front axle shaft flange	Only with 4MATIC.
		Extraction and insertion tool	Fig 3
19	Unscrew bolts (1s) and remove front-axle half	Align rear bearing bracket (1h) of lower control arm (1) with the marks made previously. If new parts are to be fitted, transfer the marks to the new parts so that the original installation position can be achieved as far as possible. Install spacer ring (1d) in the position shown.
		Bolt of lower transverse control arm at front to front axle carrier	*BA33.20-P-1004-01R
		Nut, lower control arm at bottom rear to front axle carrier	*BA33.20-P-1005-01R
		Bolt, lower transverse control arm at outside rear to front axle carrier	*BA33.20-P-1007-01R
20	Install in the reverse order
21	Perform wheel alignment check		AR40.20-P-0200GQ

FRONT AXLE TORSION BAR

Number	Designation		MODEL 166 without CODE 468 (Active driving stability (stability))	MODEL 166 with CODE 468 (Active driving stability (stability))
BA32.20-P-1001-02Q	Bolt, stabilizer bar bracket/stabilizer bar to front axle carrier	Nm	100	130

FRONT AXLE TORSION BAR

Number	Designation			MODEL 166 without CODE 468 (Active driving stability (stability))	MODEL 166 with CODE 468 (Active driving stability (stability))
BA32.20-P-1002-02Q	Bolt, link rod to stabilizer bar	Stage 1	Nm	80	80
		Stage 2	∠°	90	90

FRONT AXLE SHOCK ABSORBER

Number	Designation			MODEL 166
BA32.25-P-1002-01O	Self-locking nut, shock absorber to wishbone	Stage 1	Nm	100
		Stage 2	∠°	180

WHEEL CONTROL, HUB

Number	Designation			MODEL 166
BA33.20-P-1001-01R	Self-locking nut, upper ball joint out of upper transverse control arm to steering knuckle	Stage 1	Nm	100
		Stage 2	∠°	45

WHEEL CONTROL, HUB

Number	Designation			MODEL 166
BA33.20-P-1004-01R	Bolt of lower transverse control arm at front to front axle carrier	Stage 1	Nm	120
		Stage 2	∠°	90

WHEEL CONTROL, HUB

Number	Designation			MODEL 166
BA33.20-P-1005-01R	Nut, lower control arm at bottom rear to front axle carrier	Stage 1	Nm	65
		Stage 2	∠°	90

WHEEL CONTROL, HUB

Number	Designation			MODEL 166
BA33.20-P-1007-01R	Bolt, lower transverse control arm at outside rear to front axle carrier	Stage 1	Nm	130
		Stage 2	∠°	45

FRONT AXLE SHAFT

Number	Designation				MODEL 166
BA33.30-P-1001-02I	Collar nut, front axle shaft to front axle shaft flange	Stage 1		Nm	250
		Stage 2	Loosen	∠°	180
		Stage 3		Nm	200
		Stage 4		∠°	30

FRONT AXLE BRAKE CALIPER

Number	Designation			MODEL 166 (except 166.074/874)	MODEL 166.074/874
BA42.10-P-1004-10L	Screw/bolt, brake pad contact sensor to brake caliper	M6	Nm	8	8

FRONT AXLE RPM SENSOR

Number	Designation		MODEL 166
BA42.30-P-1001-01G	Self-locking bolt, front axle RPM sensor to steering knuckle	Nm	8

TIE ROD

Number	Designation			MODEL 166
BA46.40-P-1002-01K	Self-locking nut, tie rod to steering knuckle	Stage 1	Nm	90
		Stage 2	∠°	90

Fig 3: Identifying Extraction And Insertion Tool (210 589 03 43 00)

Courtesy of MERCEDES-BENZ USA