Remove/install front axle - AR33.10-P-0100NKE

MODEL 242 with ENGINE 780

MODIFICATION NOTES

24.6.14

Screw/bolt, heater bracket to integral carrier

BA83.20-P-1001-01D

Fig 1: Identifying Front Axle Remove/Install Components (1 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Front Axle Remove/Install Components (2 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Front Axle Remove/Install Components (3 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Front Axle Remove/Install Components (4 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Front Axle Remove/Install Components (5 Of 5)

Courtesy of MERCEDES-BENZ USA

	Risk of death when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	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
	Note on high-voltage on-board electrical system		AH54.00-P-0010-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on bolted connections with self tapping screws		AH00.00-P-0007-01SF
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Switch off ignition and keep transmitter key at a location beyond transmitter range (at least 2 m)
2	Perform disable for the high-voltage on-board electrical system		AR54.10-P-1150NKE
3	Detach lower steering shaft from connection in driver footwell		AR46.10-P-0500-01NKB
		Clamp screw, steering coupling to rack- and-pinion steering	*BA46.10-P-1001-01H
		Retainer device	Fig 6
4	Secure vehicle on vehicle lift		AR00.60-P-0100CW
5	Remove front wheel-and-tire assemblies
			AP40.10-P-4050AK
6	Detach lower engine compartment paneling		AR61.20-P-1105NKB
7	Remove front fender liner		AR88.10-P-1300NKB
8	Detach underfloor paneling		AR61.30-P-1001NKB
9	Unscrew screw/bolt (2) from washer fluid reservoir on left crossbar (1b)
10	Remove left crossbar (1b) and right crossbar (1a)	Do not swap left crossbar (1b) and right crossbar (1a). Ensure that the installation position is correct.
		Bolt, radiator support to connecting carrier	*BA62.30-P-1003-04D
		Bolt, connecting carrier to front axle carrier	*BA62.30-P-1004-04D
11	Detach stabilizer bar link rod from torsion bar	Self-locking nut, connecting rod to torsion bar	*BA32.20-P-1002-02K
12	Unscrew screws/bolts (7) at engine stabilizer mount (8)	Screw/bolt, pendulum rod at top to bearing bracket	*BA22.10-P-1002-03L
13	Unscrew screws/bolts (9) from rear transverse control arm bearings on frame floor assembly		AR33.20-P-0510NKB
14	Unscrew nuts (3) from PTC heater booster bracket (4) on integral carrier (14)	Screw/bolt, heater bracket to integral carrier	*BA83.20-P-1001-01D
15	Detach electrical connections from electrical power steering control unit and detach wiring harness from rack-and-pinion steering		AR46.20-P-0701NKB
15		Replace cable tie and ensure correct routing of the electrical wiring harness.
16	Unscrew screw/bolt (21) and place bracket (20) with electrical lines aside	Bolt, bracket for mounting clamp for lines to steering gear	*BA46.20-P-1006-01I
17	Detach electrical connections from front-axle level sensor	Model 242 with engine 780 up to model year 2015 with code 614 (Bi-xenon headlamps) Model 242 with engine 780 up to model year 2015 with code 615 (Bi-xenon headlamps with active light function) Model 242 with engine 780 up to model year 2015 with code 618 (Bi-xenon headlamps) Model 242 with engine 780 up to model year 2015 with code 621 (Intelligent Light System (left-hand traffic)) Model 242 with engine 780 up to model year 2015 with code 622 (Intelligent Light System)	AR82.10-P-4083NKB
18	Detach electrical connection from front right brake wear sensor and remove brake wear sensor connector from brake caliper	Screw/bolt, brake wear connector to brake caliper	*BA42.10-P-1004-10N
19	Detach rpm sensors on front axle at left and right with cable duct (5) on steering knuckles (6) and place to one side	Bolt, rpm sensor to steering knuckle	*BA42.30-P-1001-01F
20	Detach electrical connections (10) in area of rear transverse control arm bearing	The electrical lines remain on the transverse control arms.
21	Detach wiring harness (12) from bracket (11)	Replace cable tie.
22	Detach wiring harness (13) from integral carrier (14)	Replace cable tie.
23	Unscrew screws/bolts (15, 16) and remove struts (17)	The PTC heater booster (18) must be secured against falling down.
23	Unscrew screws/bolts (15, 16) and remove struts (17)	Screw/bolt, strut to integral carrier/lattice beam	*BA83.20-P-1002-01D
24	Detach tie rods from steering knuckles (6)		AR46.40-P-0200-02CW
		Press	Fig 9
		Puller	Fig 8
25	Pry off supporting ball joints from steering knuckles (6)		AR33.20-P-0440-01NKB
		Nut, supporting ball joint/transverse control arm to steering knuckle	*BA33.15-P-1005-01F
		Press	Fig 9
		Puller	Fig 7
26	Support front axle carrier against falling down		AR33.10-P-0105NKB
27	Unscrew screws/bolts from front axle carrier on frame floor assembly	Bolt, front-axle carrier to body	*BA33.10-P-1001-01G
28	Lower and remove front axle	Slowly and carefully retract front axle. Otherwise the high-voltage electrical lines may be pinched or damaged. Ensure that PTC heater booster (17) is seated correctly.
29	Install in the reverse order
30	Perform wheel alignment check		AR40.20-P-0200NKB

ENGINE MOUNT, ENGINE SUPPORT (ENGINE SIDE)

Number	Designation		Engine 780 in model 242
BA22.10-P-1002-03L	Screw/bolt, pendulum rod at top to bearing bracket	Nm	106

FRONT AXLE TORSION BAR

Number	Designation		Model 242
BA32.20-P-1002-02K	Self-locking nut, connecting rod to torsion bar	Nm	105

FRONT AXLE CARRIER

Number	Designation			Model 242
BA33.10-P-1001-01G	Bolt, front-axle carrier to body	M10	Nm	60
BA33.10-P-1001-01G	Bolt, front-axle carrier to body	M12	Nm	100

TRAILING ARMS, TRANSVERSE CONTROL ARMS

Number	Designation			Model 242
BA33.15-P-1005-01F	Nut, supporting ball joint/M14 transverse control arm to steering knuckle	Stage 1	Nm	65
BA33.15-P-1005-01F		Stage 2	∠°	45

FRONT AXLE BRAKE CALIPER

Number	Designation		Model 242
BA42.10-P-1004-10N	Screw/bolt, brake wear connector to brake caliper	Nm	8

FRONT AXLE RPM SENSOR

Number	Designation		Model 242
BA42.30-P-1001-01F	Bolt, rpm sensor to steering knuckle	Nm	8

STEERING SHAFT

Number	Designation		Model 242
BA46.10-P-1001-01H	Clamp screw, steering coupling to rack-and-pinion steering	Nm	28

STEERING GEAR

Number	Designation		Model 242
BA46.20-P-1006-01I	Bolt, bracket for mounting clamp for lines to steering gear	Nm	17

RADIATOR SUPPORT

Number	Designation		Model 242
BA62.30-P-1003-04D	Bolt, radiator support to connecting carrier	Nm	16

RADIATOR SUPPORT

Number	Designation		Model 242
BA62.30-P-1004-04D	Bolt, connecting carrier to front axle carrier	Nm	16

HEATER

Number	Designation			Model 242 with engine 780
BA83.20-P-1001-01D	Screw/bolt, heater bracket to integral carrier	Stage 1	Nm	7
BA83.20-P-1001-01D	Screw/bolt, heater bracket to integral carrier	Stage 2	∠°	45

HEATER

Number	Designation			Model 242 with engine 780
BA83.20-P-1002-01D	Screw/bolt, strut to integral carrier/lattice beam	M8	Nm	20
BA83.20-P-1002-01D	Screw/bolt, strut to integral carrier/lattice beam	M10	Nm	50

Fig 6: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Puller (246 589 00 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 8: Identifying Puller (221 589 05 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 9: Identifying Press (163 589 03 43 00)

Courtesy of MERCEDES-BENZ USA