Remove/install rack-and-pinion steering - AR46.20-P-0600PW

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MODEL 203.081 /084 /087 /092 /281 /284 /287 /292

Fig 1: Identifying Rack-And-Pinion Steering Remove/Install Components - Model 203.081 /084 /087 /092 /281 /284 /287 /292

MODIFICATION NOTES

28.2.07

Self-locking nut, steering joint to rack-and-pinion steering

*BA46.10-P-1002-01E

	Remove/install
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Evaluating steering rack when repairing accident vehicles		AH46.20-P-9409-01A
1	Move out or push out adjustable steering column completely	Needed for separating the steering coupling (25).
2.1	Deactivate easy entry/exit function	Vehicles with memory package (driver seat, steering column, mirrors) code 275 Otherwise the driver seat and steering wheel move to a different position, e.g. when the driver door is opened/closed. The upper frame may be damaged when the holding device is installed. It is switched off using the buttons on the steering wheel in the "Comfort" menu on the multifunction display, see vehicle owner's manual.
3	Extract fluid out of the power steering pump's fluid reservoir	Hand pump	Figure
4	Remove front wheels
	Remove/install wheels, rotate if necessary		AP40.10-P-4050Z
5	Detach front and rear lower engine compartment paneling		AR61.20-P-1105P
6	Pry off tie rod ball joints (10a) at right and left of steering knuckle		AR46.40-P-0200-02PW
		Thrust piece	Figure
		Puller	Fig 4
			*BA46.40-P-1001-01E
7	Remove exhaust shielding plate over the right rubber boot on the retaining plate of the rack-and-pinion steering (23)
8	Detach exhaust shielding plate of steering coupling (23k) on control valve of rack-and-pinion steering (23)	Three bolts.
9	Remove lower bolt (25b) from steering coupling (25)	To do so rotate steering coupling (25) into corresponding position.
			*BA46.10-P-1002-01E
10	Turn steering wheel to central position (front wheels in straight ahead position) and secure with the retaining device	On a disengaged steering coupling (25) the steering wheel should not be turned because the spiral contact coil will be destroyed.
		Retainer	Figure
11	Pull steering coupling (25) carefully out of the control valve of the rack-and-pinion steering (23) (predetermined fracture point on control valve)	Do not use force (hammer blows, strong lever action) because the lower steering shaft is sensitive to lateral dynamic force and the lower steering shaft may be damaged. Installation: Refer to: ↓
		Turn rack-and-pinion steering to center position and mount steering coupling	AR46.20-P-0600-01P
12	Remove retaining plate of oil lines (23s) from rack-and-pinion steering (23) and pull out oil lines	Seal off line connections with plugs. Installation: replace O-rings.
			*BA46.20-P-1001-01F
		Set of stop plugs	Figure
13	Remove support bracket (1g) on rack-and-pinion steering (23)	To do so undo bolts (23g).
			*BA46.20-P-1002-01F
14	Prop up rack-and-pinion steering (23)
15	Remove support bracket (1g) from front axle carrier	To do so unscrew bolts (23a).
			*BA46.20-P-1004-01F
16	Remove rack-and-pinion steering (23)
17	Check rubber mounts (21) of rack-and-pinion steering fixing for damage and replace, if necessary		AR46.20-P-0600-02I
		Lubricant paste	*BR00.45-Z-1002-06A
18	Check protective cap on input shaft of rack-and- pinion steering (23) for damage	Replace if necessary. See: ↓
		Remove/install protective cap for input shaft on steering gear	AR46.20-P-0004P
19	Install in the reverse order
20	Fill power steering pump	Except model 203.2 with rear axle level control system code 480	AR46.30-P-0010P
		Model 203.281/284 with level control on rear axle code 480 Model 203.287/292 with level control on rear axle code 480	AR46.30-P-0010PV
21	Check steering for function and leaks
22.1	Check front axle toe and adjust if necessary	When installing new parts. see: ↓
		Perform a wheel alignment check	AR40.20-P-0200P

STEERING SHAFT

Number	Designation		Model 203.081/ 084/087/ 092/281/ 284/287/ 292
BA46.10-P-1002-01E	Locking bolt and locknut of steering coupling to rack-and-pinion steering	Nm	24

STEERING GEAR

Number	Designation			Model 203.081/ 084/087/ 092/281/ 284/287/ 292
BA46.20-P-1001-01F	Bolt, oil line retaining plate to rack-and-pinion steering		Nm	20
BA46.20-P-1002-01F	Bolted connection, rack-and-pinion steering to front axle carrier	Stage 1	Nm	50
BA46.20-P-1002-01F		Stage 2	∠ °	60
BA46.20-P-1004-01F	Bolted connection, supporting plate to front axle carrier	Stage 1	Nm	50
BA46.20-P-1004-01F	Bolted connection, supporting plate to front axle carrier	Stage 2	∠ °	60

TIE ROD

Number	Designation			Model 203.081/084/ 087/092/281/ 284/287/292
BA46.40-P-1001-01E	Self-locking nut, tie rod to steering knuckle	Stage 1	Nm	70
BA46.40-P-1001-01E	Self-locking nut, tie rod to steering knuckle	Stage 2	∠ °	-

Fig 2: Identifying Hand Pump (210 589 00 71 00)

Fig 3: Identifying Thrust Piece (140 589 00 63 00)

Fig 4: Identifying Puller (140 589 09 33 00)

Fig 5: Identifying Holding Device (129 589 01 21 00)

Fig 6: Identifying Set Of Stop Plugs (129 589 00 91 00)

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1002-06A	Lubricant paste	A 000 989 01 60