Remove/Install Rack-And-Pinion Steering - AR46.20-P-0600MFA

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Model 118, 177, 247

MODIFICATION NOTES

19.10.2023

Bolt, heat shield to rack-and-pinion steering

Model 118, 177, 247

BA46.20-P-1002-01T

Courtesy of MERCEDES-BENZ USA

Shown on model 177.0

Courtesy of MERCEDES-BENZ USA

Shown on model 177.0

Courtesy of MERCEDES-BENZ USA

Shown on model 177.0

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	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 mechanical components when moving components.	AS00.00-Z-0009-01A
	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
Notice	Notes on bolted connections with self tapping screws		AH00.00-P-0007-01SF
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Switch off ignition and store transmitter key outside of transmitter range (min. 2 m).
2	Disconnect steering coupling.		AR46.10-P-8000-01MFA
		Clamp screw, steering coupling to rack-and-pinion steering	*BA46.10-P-1001-01H
		Retainer device	Fig 2
3	Remove front wheel and tire assemblies.		AR40.10-P-1102MFA
4	Remove lower engine compartment lining.	Model 118, 177, 247 with engine 260 with code M016 (Uprated engine) Model 118, 177, 247.7 with engine 139	AR61.20-P-1105MFR
		Model 118, 177, 247 with engine 608, 654	AR61.20-P-1105MFE
		Model 118, 177, 247 with engine 260 except code M016 (Uprated engine) Model 118, 177, 247 with engine 282	AR61.20-P-1105MFA
5	Detach lower transverse control arm from steering knuckle at left and right.		AR33.20-P-0510MFA
6	Detach tie rod joint from steering knuckle at left and right.		AR46.40-P-0200-02MFA
		Nut, tie rod to steering knuckle	*BA46.40-P-1001-01Q
		Press	Fig 3
		Repair spindle	Fig 1
		Puller	Fig 5
7	Detach torsion bar linkage from torsion bar at left and right.		AR32.35-P-3330MFA
		Nut, torsion bar linkage to suspension strut/stabilizer bar	*BA32.35-P-1002-02A
8	Remove fender liners in front fenders.		AR88.10-P-1301MFA
9	Release and disconnect electrical connector at left front body acceleration sensor (B24/3) or right front body acceleration sensor (B24/4) and remove electrical wiring harness from front axle carrier (4).	Model 118, 177, 247 with code 459 (Steel suspension with adjustable damping) Model 118, 177, 247 with code 640 (SAE dynamic LED headlamps, right-hand traffic) Model 118, 177, 247 with code 641 (Dynamic LED headlamps, left-hand traffic) Model 118, 177, 247 with code 642 (Dynamic LED headlamps, right-hand traffic)
10	Release and disconnect electrical connector from left front level sensor (B22/8) or right front level sensor (B22/9) and remove electrical wiring harness from front axle carrier (4).	Model 118, 177, 247 with code 459 (Steel suspension with adjustable damping) Model 118, 177, 247 with code 640 (SAE dynamic LED headlamps, right-hand traffic) Model 118, 177, 247 with code 641 (Dynamic LED headlamps, left-hand traffic) Model 118, 177, 247 with code 642 (Dynamic LED headlamps, right-hand traffic)
11	Remove expansion rivets (18).	Dismantling tool	Fig 4
12	Unscrew screws (19) and remove front support (12) with front wheel spoilers (13).
13	Detach bracket (22) of exhaust system from front axle carrier (4).	Model 118, 177, 247 with engine 654 Nut, front exhaust system holder to front axle carrier	*BA49.10-P-1006-02V
		Model 118, 177, 247 with engine 608 Nut, center exhaust system holder to front axle carrier	*BA49.10-P-1004-02R
		Model 118, 177 with engine 139 Nut, center exhaust system holder to front axle carrier	*BA49.10-P-1002-02X
		Model 118, 177, 247 with engine 260, 282 Nut, center exhaust system holder to front axle carrier	*BA49.10-P-1007-02Q
14.1	Remove control unit of temperature sensor upstream of gasoline particulate filter (B163/4) from holder on front axle carrier (4) and - with the temperature sensor connected to the vehicle - secure it free of strain against falling down.	Model 177, 247 with engine 260, 282 with code 598 (Gasoline particulate filter (OPF) with sensor system) except code M005 (Vehicles with 4MATIC/all-wheel drive) Do not crush or kink or subject lines to tension. This will result in damage to the lines which may impair their functional capability. The temperature sensor upstream of the gasoline particulate filter (B163/4) remains in the exhaust system and is permanently connected to the control unit.	AR49.20-P-0009MFD
14.2	Detach control unit of NOx sensor downstream of SCR catalytic converter (N37/8) from bracket on front axle carrier (4) and secure on vehicle free of tension to prevent it falling with line connected.	Model 118, 177, 247 with engine 608 Do not crush or kink or subject lines to tension. This will result in damage to the lines which may impair their functional capability. The NOx sensor downstream of the SCR catalytic converter (N37/8b1) remains in the exhaust system and is permanently connected to the control unit of the NOx sensor downstream of the SCR catalytic converter (N37/8).	AR49.20-P-2062MFE
15	Release and disconnect electrical connectors (21) at rack-and-pinion steering (10).
16	Unclip electrical line of electrical connectors (21) from heat shield (17).
17	Remove nuts (11).
18	Remove bracket from right connecting carrier.	Model 118, 177 with engine 139 Model 118, 177, 247 with engine 260, 282, 608, 654 with code 228 (Additional warm water heating) Screw, holder to connecting carrier	*BA62.30-P-1010-02O
19	Remove screws (7, 16) and remove left and right connecting carriers (15) from vehicle.	Bolt, connecting carrier to front axle carrier/radiator support	*BA62.30-P-1003-02O
20	Support front axle carrier (4) and secure to prevent it falling.		AR01.10-P-2500-01A
	000 588 25 62 00 Lift table	Use lifting platform in combination with major assembly mount (universal).	WS01.00-P-0264A
21	Remove longitudinal member reinforcements at left and right transverse control arm bearing.	Model 118, 177 with engine 139 Model 118, 177, 247 with engine 260 with code M016 (Uprated engine) : Replace screws of transverse control arm bearing on front axle carrier. Mount, support (strut)	*BA33.10-P-1002-01R
		Screw/bolt, transverse control arm bearing to front axle carrier	*BA33.15-P-1002-01F
22	Remove lower engine stabilizer mount.	Model 118, 177 with engine 139	AR22.10-P-1155MFG
		Model 118, 177, 247 with engine 260, 282	AR22.10-P-1155MFC
		Model 118, 177, 247 with engine 608, 654	AR22.10-P-1155MFE
23	Remove screws (14).	Bolt, front-axle carrier to body	*BA33.10-P-1001-01R
24	Remove bolts (5).	Bolt, front-axle carrier to body	*BA33.10-P-1001-01R
25	Remove screws (8) and lower front axle carrier (4).
	000 588 25 62 00 Lift table	Use lifting platform in combination with major assembly mount (universal). : Replace screws (8).	WS01.00-P-0264A
		Screw/bolt, transverse control arm bearing to longitudinal member	*BA33.15-P-1003-01F
26	Remove side noise encapsulations (20).	If the noise encapsulations (20) are installed.
27	Remove nuts of screws (9) and remove rack-and-pinion steering (10) from front axle carrier (4).	Position precisely. The rack-and-pinion steering (10) must not slip on the front axle carrier (4). Otherwise the elastomer bearings of the rack-and-pinion steering (10) could be trapped or damaged. : Replace screws (9) and nuts. Observe information sheet for repair kit. Fit assembly aid from repair kit onto screws (9) and insert screws (9) into front axle carrier (4) from below. Then position rack-and-pinion steering (10) on front axle carrier (4) from above. Nut, rack-and-pinion steering to front axle carrier	*BA46.20-P-1001-01T
28	Remove heat shield (17) from rack-and-pinion steering (10).	When replacing the rack-and-pinion steering (10). Bolt, heat shield to rack-and-pinion steering	*BA46.20-P-1002-01T
	Check
29	Check elastomer bearings on rack-and-pinion steering (10).	Commercially available devices/tools Stationary press with suitable sleeves or pillars Lubricant, rubber assembly 1 L If damage or wear is present, ↓ replace elastomer bearings.	*BR00.45-Z-1010-06A
			AR46.20-P-0600-04MFA
30	Check rack-and-pinion steering (10).	If an accident vehicle has been repaired.
	Evaluating steering gear when repairing accident vehicles		AH46.20-P-9409-01A
31	Install in the reverse order.
	Concluding tasks
32	Perform wheel alignment measurement.		AR40.20-P-0200MFA

FRONT AXLE STABILIZER BAR

Number	Designation			Model 118, 177, 247
BA32.35-P-1002-02A	Nut, torsion bar linkage to suspension strut/stabilizer bar	M12	Nm	105

FRONT AXLE CARRIER

Number	Designation				Model 118, 177, 247
BA33.10-P-1001-01R	Bolt, front-axle carrier to body	M12		Nm	100
		M14	Stage 1	Nm	200
			Stage 2 = loosen screws	∠°	≈180
			Stage 3	Nm	200

FRONT AXLE CARRIER

Number	Designation		Model 118, 177, 247
BA33.10-P-1002-01R	Mount, support (strut)	Nm	45

TRAILING ARMS, TRANSVERSE CONTROL ARMS

Number	Designation				Model 118, 177, 247
BA33.15-P-1002-01F	Screw/bolt, transverse control arm bearing to front axle carrier	M10	Stage 1	Nm	50
BA33.15-P-1002-01F		M10	Stage 2	∠°	90

TRAILING ARMS, TRANSVERSE CONTROL ARMS

Number	Designation				Model 118, 177, 247
BA33.15-P-1003-01F	Screw/bolt, transverse control arm bearing to longitudinal member	M10	Stage 1	Nm	60
BA33.15-P-1003-01F		M10	Stage 2	∠°	45

STEERING SHAFT

Number	Designation		Model 118	Model 177
BA46.10-P-1001-01H	Clamp screw, steering coupling to rack-and-pinion steering	Nm	28	28

STEERING SHAFT

Number	Designation		Model 247
BA46.10-P-1001-01H	Clamp screw, steering coupling to rack-and-pinion steering	Nm	28

STEERING GEAR

Number	Designation			Model 118, 177, 247
BA46.20-P-1001-01T	Nut, rack-and-pinion steering to front axle carrier	Stage 1	Nm	40
BA46.20-P-1001-01T	Nut, rack-and-pinion steering to front axle carrier	Stage 2	∠°	180

STEERING GEAR

Number	Designation		Model 118, 177, 247
BA46.20-P-1002-01T	Bolt, heat shield to rack-and-pinion steering	Nm	15

FRONT AXLE TIE ROD

Number	Designation			Model 118, 177, 247
BA46.40-P-1001-01Q	Nut, tie rod to steering knuckle	Stage 1	Nm	90
BA46.40-P-1001-01Q	Nut, tie rod to steering knuckle	Stage 2	∠°	90

EXHAUST SYSTEM

Number	Designation		Engine 139 in model 118, 177, 247
BA49.10-P-1002-02X	Nut, center exhaust system holder to front axle carrier	Nm	20

EXHAUST SYSTEM

Number	Designation			Model 247 with engine 608	Model 118 with engine 608
BA49.10-P-1004-02R	Nut, center exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Model 177 with engine 608
BA49.10-P-1004-02R	Nut, center exhaust system holder to front axle carrier	M8	Nm	20

EXHAUST SYSTEM

Number	Designation			Engine 654 in model 118	Engine 654 in model 177
BA49.10-P-1006-02V	Nut, front exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Engine 654 in model 247
BA49.10-P-1006-02V	Nut, front exhaust system holder to front axle carrier	M8	Nm	20

EXHAUST SYSTEM

Number	Designation			Model 118 with engine 260	Model 118 with engine 282.8
BA49.10-P-1007-02Q	Nut, center exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Model 118 with engine 282.9	Model 177 with engine 260
BA49.10-P-1007-02Q	Nut, center exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Model 177 with engine 282.8	Model 177 with engine 282.9
BA49.10-P-1007-02Q	Nut, center exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Model 247 with engine 260	Model 247 with engine 282.8
BA49.10-P-1007-02Q	Nut, center exhaust system holder to front axle carrier	M8	Nm	20	20

EXHAUST SYSTEM

Number	Designation			Model 247 with engine 282.9
BA49.10-P-1007-02Q	Nut, center exhaust system holder to front axle carrier	M8	Nm	20

FROND END WITH FRONT REINFORCEMENT

Number	Designation			Model 118	Model 177
BA62.30-P-1003-02O	Bolt, connecting carrier to front axle carrier/radiator support	M8	Nm	16	16

FROND END WITH FRONT REINFORCEMENT

Number	Designation			Model 247
BA62.30-P-1003-02O	Bolt, connecting carrier to front axle carrier/radiator support	M8	Nm	16

FROND END WITH FRONT REINFORCEMENT

Number	Designation			Model 118	Model 177
BA62.30-P-1010-02O	Screw, holder to connecting carrier	M6	Nm	6	6

FROND END WITH FRONT REINFORCEMENT

Number	Designation			Model 247
BA62.30-P-1010-02O	Screw, holder to connecting carrier	M6	Nm	6

Fig 1: Identifying Repair Spindle (221 589 00 33 03)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Press (163 589 03 43 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Dismantling Tool (000 589 95 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Puller (221 589 00 33 00)

Courtesy of MERCEDES-BENZ USA

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1010-06A	Lubricant, rubber assembly 1 L	A 000 989 03 67