Lower Front Axle - AR33.10-P-0101GQ

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

MODEL 292 with ENGINE 157, 276, 278, 642

	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
	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
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on active roll stabilization		AH32.34-P-0001-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
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	Attach engine hoist		AR33.10-P-0105EW
4	Extract oil from expansion reservoir of Active Roll Stabilization	Model 166 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Model 292 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Hand pump	Figure
5	Unclip bleed hose (2) from heat shield	Model 166 (except 166.006/058) with engine 157, 276, 278, 642, 651 Model 292 with engine 157, 276, 278, 642
6	Remove underfloor panels		AR61.30-P-1001GQ
7	Remove both fender liners from front fenders		AR88.10-P-1321GQC
8	Detach front engine mounts on front axle carrier	Model 166, 292 with engine 157, 278	AR22.10-P-4330MLJ
		Model 166, 292 with engine 276.8	AR22.10-P-4330GQC
		Model 166 with engine 276.9	AR22.10-P-1260GQ
		Model 166, 292 with engine 642	AR22.10-P-1260OGR
		Model 166 with engine 651	AR22.10-P-1260GQA
9	Detach cable duct (3) from front axle carrier
10	Detach feed lines (4) of switchable engine mounts from front axle carrier and rack-and-pinion steering	If installed
11	Detach brackets (5a, 5b) for oil lines from front axle carrier	Model 166 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Model 292 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM)
12	Detach left and right coolant line (6) from front axle carrier
13	Remove hoses (18) from cooling air ducts (19)	If installed
14	Detach clamp (7s)	Model 166 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Model 292 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM)
15	Detach connection fittings (7a, 7b, 7c) and seal with stop plugs	Model 166 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Model 292 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM)	AR32.00-P-0001-01A
		Screw/bolt, oil line to valve block on front axle/rear axle	*BA32.34-P-1008-01A
		Screw/bolt, oil line to rotary actuator on front axle/rear axle	*BA32.34-P-1007-01A
		Bolt, hydraulic line to hydraulic pump	*BA32.00-P-1006-01A
		Bolt, mounting plate to distributor hydraulic line	*BA32.00-P-1007-01A
		Screw/bolt, oil line to oil line	*BA32.34-P-1011-01A
		Detaching tool	Figure
		Detaching tool	Figure
		Record plug	Figure
16	Unclip feed line (8) of temperature sensor up stream of diesel particulate filter from bracket (8a)	Model 166 with engine 642, 651 Model 292 with engine 642
17	Support front axle with lifting platform
	000 588 03 62 00 Lifting platform		WS01.00-P-0091A
18	Detach decoupling element (9) of diesel particulate filter from right centering panel (17)	Model 166 with engine 642, 651 Model 292 with engine 642Nut, exhaust rubber mount to exhaust system/centering plate/strut	*BA49.10-P-1006-01AK
19	Remove bolts (16a, 16b)	Model 166 with engine 642, 651 Model 292 with engine 642 Before positioning the bolts (16b), use lifting platform to move the front axle to its final installation position. Do not drag 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
20	Lower front axle	Carefully lower front axle. Do not crush any lines or hoses or subject them to tensile loads. Otherwise damage will occur.
21	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
22	Check bearings of front axle carrier for wear and damage, replace if necessary		AR33.10-P-0040GQ
23	Install in the reverse order
24	Fill and bleed active roll stabilization	Model 166 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM) Model 292 with engine 157, 276, 278, 642 with code 468 (ACTIVE CURVE SYSTEM)	AR32.34-P-0021GQ
25	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-1006-01A	Bolt, hydraulic line to hydraulic pump	Nm	9	10

HYDRAULIC PUMP

Number	Designation		Model 166 with engine 278	Model 166 with engine 642
BA32.00-P-1006-01A	Bolt, hydraulic line to hydraulic pump	Nm	9	10

HYDRAULIC PUMP

Number	Designation		Model 292 with engine 157	Model 292 with engine 276
BA32.00-P-1006-01A	Bolt, hydraulic line to hydraulic pump	Nm	9	10

HYDRAULIC PUMP

Number	Designation		Model 292 with engine 278	Model 292 with engine 642
BA32.00-P-1006-01A	Bolt, hydraulic line to hydraulic pump	Nm	9	10

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

HYDRAULIC PUMP

Number	Designation		Model 292 with engine 157	Model 292 with engine 276
BA32.00-P-1007-01A	Bolt, mounting plate to distributor hydraulic line	Nm	8	8

HYDRAULIC PUMP

Number	Designation		Model 292 with engine 278	Model 292 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	Model 292
BA32.34-P-1007-01A	Screw/bolt, oil line to rotary actuator on front axle/rear axle	Nm	20	20

ACTIVE ROLL STABILIZATION

Number	Designation		Model 166	Model 292
BA32.34-P-1008-01A	Screw/bolt, oil line to valve block on front axle/rear axle	Nm	20	20

ACTIVE ROLL STABILIZATION

Number	Designation			Model 166	Model 292
BA32.34-P-1011-01A	Screw/bolt, oil line to oil line	M8	Nm	20	20

FRONT AXLE CARRIER

Number	Designation				Model 166	Model 292
BA33.10-P-1001-01I	Bolt, front axle carrier to longitudinal member	M14 X 1.5	Stage 1	Nm	100	100
			Stage 2	∠°	120	120
			Stage 3	∠°	-180	-180
			Stage 4	Nm	100	100
			Stage 5	∠°	90	90

FRONT AXLE CARRIER

Number	Designation			Model 166	Model 292
BA33.10-P-1002-01I	Bolt, stiffening plate to longitudinal member	M10	Nm	60	60

FRONT AXLE CARRIER

Number	Designation			Model 166	Model 292
BA33.10-P-1003-01I	Bolt, stiffening plate to body	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation		Engine 642 in model 166	Engine 642 in model 292
BA49.10-P-1006-01AK	Nut, exhaust rubber mount to exhaust system/centering plate/strut	Nm	20	20

EXHAUST SYSTEM

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

Fig 1: Identifying Detaching Tool (221 589 01 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Drift Set (164 589 01 15 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Detaching Tool (230 589 01 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA