Remove/install power steering electric motor - AR46.35-P-1002MCC

MODEL 451.3/4 with CODE V26 (Power steering, EPS (FFO)) 

Shown on model 451.30 

Fig 1: Identifying Power Steering Electric Motor Remove/Install Components - Shown On Model 451.30 (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Power Steering Electric Motor Remove/Install Components - Shown On Model 451.30 (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Notes on self-locking nuts and bolts		AH00.00-N-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
1	Raise vehicle with vehicle lift
2	Remove underfloor panels
3	Remove front bulkhead	Model 451.3 (except 451.39), 451.4 (except 451.49) with code V26 (Power steering, EPS (FFO)) The front bulkhead is attached with two nuts.
4	Loosen nut (3) on steering coupling (2)	Do not unscrew nut (3) completely. Otherwise, the bolt (4) could fall out and the steering coupling (2) could disconnect, thus damaging the fanfare horns and airbag clock spring contact while setting the front wheels to a straight-ahead position. Turn the front wheels until the nut (3) is accessible. Screw/bolt, steering coupling to rack-and-pinion steering	*BA46.10-P-1001-01F
5	Lower vehicle with vehicle lift
6	Place the front wheels in the straight-ahead position and block the steering wheel using the holding device	Lock steering wheel. Otherwise the fanfare horns and airbag clock spring contact may be damaged. Retainer device	Figure
7	Raise vehicle using the vehicle lift and secure in place		AR00.60-P-0100MCC
8	Unscrew nut (3) on the steering coupling (2), remove bolt (4) and slide steering coupling (2) upwards off the rack-and-pinion steering (1)	Replace nut (3) and bolt (4). Only the bolt (4) and nut (3) approved for model 451 may be used. Bolts and nuts of other models with the same dimensions have different properties due to other surface coatings and may impair the strength of the bolted connection. When the nut (3) is loosened, the cam-shaped bolt (4) rotates with it approx. half a revolution. However, the bolt (4) does not have to be counterheld. : Check the steering coupling (2) for ease of movement and replace if necessary.
9	Disconnect connector of power steering torque sensor (B23x1)
10	Disconnect power steering connector (M19x1)
11	Ground; disconnect interference suppression of power steering pump (W30/2)
12	Remove front axle carrier support	Model 451.390/392/490/492 with code V26 (Power steering, EPS (FFO))	AR33.10-P-0002MEX
		Model 451.391/491 with code V26 (Power steering, EPS (FFO)) Remove front axle carrier support only for front axle carrier (5).	AR33.10-P-0002MEV
13	Support front axle carrier (5) using telescopic lifter and removal fixture
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
		Removal fixture	Figure
14	Remove screws/bolts (6) on front axle carrier (5)
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
		: Screw in the screws/bolts (6) and remove the telescopic lifter with removal fixture. Slide front axle carrier (5) into the foremost position and align centrally in this position, then tighten screws/bolts (6). Bolt, front-axle carrier to body	*BA33.10-P-1001-01D
		Removal fixture	Figure
15	Lower front axle carrier (5) carefully using telescopic lifter until power steering motor (M19) is accessible
16	Remove cable ties (10) and place electrical line (11) to one side	Observe routing of electrical line (11). : Replace cable tie (10).
17	Remove bolts (12) on power steering motor (M19)	Observe installation position of contact lug (13). Bolt, electric motor to rack-and-pinion steering	*BA46.20-P-1005-01G
18	Remove power steering motor (M19) from rack-and-pinion steering (1)	Ensure that no dirt reaches the power steering motor (M19) and the rack-and-pinion steering (1). Check seal ring (14) for condition and seat. : To facilitate assembly of the power steering motor (M19) grease the seal ring (14) lightly. Syntheso GLK 1 grease	*BR00.45-Z-1059-06A
19	Install in the reverse order
20	Perform wheel alignment check	Model 451.3/4 with code V26 (Power steering, EPS (FFO)) without recording the vehicle level	AR40.20-P-0200MCC
		Model 451.3/4 with code V26 (Power steering, EPS (FFO)) with recording the vehicle level Depending on the workshop equipment select between the measurement variant with recording the vehicle level or without recording the vehicle level.	AR40.20-P-0200MCE

Fig 3: Identifying Retainer Device (129 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Removal Assembly (450 589 02 62 00)

Courtesy of MERCEDES-BENZ USA