Lower front axle - AR33.10-P-0101GQ

MODEL 166 with ENGINE 157, 276, 278, 642, 651

MODIFICATION NOTES

18.6.12	Detach steering coupling at the firewall	Operation step 2
18.6.12	Extract oil from active roll stabilization reservoir	Operation step 5
18.6.12	Pull out hoses from cooling air ducts	Operation step 14
18.6.12	Fill and bleed active roll stabilization	Operation step 25

Fig 1: Identifying Lower Front Axle Components (1 Of 4)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Lower Front Axle Components (2 Of 4)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Lower Front Axle Components (3 Of 4)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Lower Front Axle Components (4 Of 4)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure. Risk of poisoning from swallowing hydraulic fluid.	Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Notes on active roll stabilization		AH32.34-P-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Secure vehicle on the vehicle lift and raise until the wheels are clear of the ground		AR00.60-P-1000GZ
2	Detach steering coupling at the firewall		AR46.10-P-8000GQ
3	Detach ground line from battery		AR54.10-P-0003GZ
	Notes on battery		AH54.10-P-0001-01A
4	Attach engine hoist		AR33.10-P-0105EW
5	Extract oil from active roll stabilization reservoir	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
5	Extract oil from active roll stabilization reservoir	Hand pump	Figure
6	Unclip bleed hose (2) on heat shield	Only with 4MATIC
7	Remove underfloor paneling concerned		AR61.30-P-1001GQ
8	Remove both fender liners in front fenders		AR88.10-P-1300GQ
9	Detach front engine mounts on front axle carrier	MODEL 166 with ENGINE 157	AR22.10-P-1260MLZ
		MODEL 166 with ENGINE 276.8	AR22.10-P-1260GQC
		MODEL 166 with ENGINE 276.9	AR22.10-P-1260GQ
		MODEL 166 with ENGINE 278	AR22.10-P-1260MLJ
		MODEL 166 with ENGINE 642	AR22.10-P-1260OGR
		MODEL 166 with ENGINE 651	AR22.10-P-1260GQA
10	Detach cable duct (3) from front axle carrier
11	Detach feed lines (4) of switchable engine mounts from front axle carrier and rack-and-pinion steering	MODEL 166 with switchable engine mount
12	Detach brackets (5a, 5b) for oil lines from front axle carrier	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
13	Detach left and right coolant line (6) from front axle carrier
14	Remove hoses (18) from cooling air ducts (19)	MODEL 166 with cooling air ducts for engine mount
15	Detach clamp (7s)	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
16	Disconnect line connections (7a, 7b, 7c)	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
		MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)	AR32.00-P-0001-01A
		MODEL 166 with ENGINE 157, 276, 278, 642	*BA32.00-P-1007-01A
		Screw/bolt, oil line to oil line	*BA32.34-P-1011-01A
		Assembly cleaner	*BR00.45-Z-1028-04A
		Record plug	Figure
17	Unclip feed line (8) of temperature sensor upstream of diesel particulate filter from bracket (8a)	MODEL 166 with ENGINE 642, 651
18	Support front axle with lifting platform	Major assembly lifting platform / scissors trolley jack gotis://A_01_07. 1
19	Detach decoupling element (9) of diesel particulate filter from right centering panel (17)	MODEL 166 with ENGINE 642, 651
			*BA49.10-P-1006-01AK
		MODEL 166 with ENGINE 642, 651	*BA49.10-P-1006-01AK
20	Remove bolts (16a, 16b)	Before positioning the bolts (16b), use lifting platform to move the front axle to its final installation position. Do not "pull" front axle into position by tightening the bolts (16b). The threaded connections can otherwise fail. Before tightening the bolts (16a, 16b), use a drift set to center centering panels (17).
		Bolt, front axle carrier to longitudinal member	*BA33.10-P-1001-01I
		Bolt, stiffening plate to longitudinal member	*BA33.10-P-1002-01I
		Bolt, stiffening plate to body	*BA33.10-P-1003-01I
		Drift set	Figure
21	Lower front axle	Carefully lower front axle. Do not crush any lines or hoses or subject them to tensile loads. Otherwise damage will occur.
22	Recut and blow out threads for bolts (16b) in frame floor assembly	It is essential to recut and blow out the threads. The threaded connections can otherwise fail.
	Check
23	Check bearings of front axle carrier		AR33.10-P-0040GQ
23	Check bearings of front axle carrier	Check bearings for wear and damage, replace if necessary.	AR33.10-P-0040GQ
24	Install in the reverse order
25	Fill and bleed active roll stabilization	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)
25	Fill and bleed active roll stabilization	MODEL 166 with CODE 468 (ACTIVE CURVE SYSTEM)	AR32.34-P-0021GQ
26	Perform wheel alignment check		AR40.20-P-0200GQ

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 157	MODEL 166 with ENGINE 276
BA32.00-P-1007-01A	Bolt, mounting plate to distributor hydraulic line	Nm	8	8

HYDRAULIC PUMP

Number	Designation		MODEL 166 with ENGINE 278	MODEL 166 with ENGINE 642
BA32.00-P-1007-01A	Bolt, mounting plate to distributor hydraulic line	Nm	8	8

ACTIVE ROLL STABILIZATION

Number	Designation			MODEL 166
BA32.34-P-1011-01A	Screw/bolt, oil line to oil line	M8	Nm	20

FRONT AXLE CARRIER

Number	Designation				MODEL 166
BA33.10-P-1001-01I	Bolt, front axle carrier to longitudinal member	M14X1.5	Stage 1	Nm	100
			Stage 2	∠°	120
			Stage 3	∠°	-180
			Stage 4	Nm	100
			Stage 5	∠°	90

FRONT AXLE CARRIER

Number	Designation			MODEL 166
BA33.10-P-1002-01I	Bolt, stiffening plate to longitudinal member	M10	Nm	60

FRONT AXLE CARRIER

Number	Designation			MODEL 166
BA33.10-P-1003-01I	Bolt, stiffening plate to body	M8	Nm	20

EXHAUST SYSTEM

Number	Designation		ENGINE 642 in MODEL 166	ENGINE 651 in MODEL 166
BA49.10-P-1006-01AK	Nut, rubber mount to exhaust system/centering plate/strut	Nm	20	20

Fig 5: Identifying Drift Set (164 589 01 15 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1028-04A	Assembly cleaner	-