Remove/install jacket tube - AR46.10-P-0400I

MODEL 215.373 /374 /375 /378, 220.026 /028 /063 /065 /070 /073 /074 /075 /083 /084 /087 /128 /165 /170 /173 /174 /175 /178 /183 /184 /187 

Fig 1: Identifying Jacket Tube Remove/Install Components

	Remove/Install
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
1	Position steering wheel horizontal (front wheels in straight-ahead position)	With a disengaged steering coupling (25) the steering wheel should not be turned because the spiral contact coil will be destroyed.
2	Connect no load current retention unit		AR54.10-P-1030-07I
	Risk of explosion  caused by oxyhydrogen gas. Risk of poisoning and caustic burns  caused by swallowing battery acid. Risk of injury  through burns to skin and eyes from battery acid or when handling damaged lead-acid batteries	No fire, sparks, open flames or smoking. Wear acid-resistant gloves, clothing and safety glasses. Pour battery acid only into suitable and appropriately marked containers.	AS54.10-Z-0001-01A
3	Disconnect battery ground cable	Turn key in electronic ignition switch EIS into position "0". Key cannot be withdrawn. Vehicle fitted with code (889) Keyless-Go: Switch off engine, remove Keyless-Go cards from the vehicle and store outside of transmitter range Ensure that ground cable will not come into renewed contact with the battery terminal as you are working. Installation:  After connecting, read out diagnostic trouble code memory, set time at instrument cluster, encode radio, normalize power windows and activate steering angle sensor. Vehicles with stationary heater: adjust time display on stationary heater.	AR54.10-P-0003I
	Notes on battery	All models	AH54.10-P-0001-01A
	Instructions for performing repair, body work and welding on vehicles with airbags and ETR units		AH91.00-P-0002-01M
4.1	Remove lower engine compartment lining (at rear)	Models 220.025/ 026/ 028/ 125/ 126/ 128	AR61.20-P-1105M
5	Detach exhaust shielding plate near lower steering shaft (80a)
6	Undo bolt for steering coupling to steering shaft (25a) from steering coupling (25) on lower steering shaft (80a)		*BA46.10-P-1001-01E
7.1	Insert a suitable tool into the hole in steering coupling (25) and pull lower steering shaft (80a) together with locking plate (25f) upwards and out of steering coupling (25)	Model 220 without 4MATIC, model 215 Do not counter by holding the rubber boot (85a) or the temperature-resistant plastic disk on the lower steering shaft (80a). Do not use force (hammer blows, excessive leverage) as the lower steering shaft is sensitive to lateral forces. Installation:  Replace locking plate (25f) with self-locking nut.
		Turn rack-and-pinion steering to center position Push lower steering shaft (80a) into steering coupling (25) as far as the stop, observing the pins of the steering coupling (25) and groove of the lower steering shaft (80a).	AR46.20-P-0600-01I
8.2	Pull the lower steering shaft (80a) upward to extract it from the steering coupling (25.)	Model 220 with 4MATIC Do not counter by holding the rubber boot (85a) or the temperature-resistant plastic disk on the lower steering shaft (80a). Do not use force (hammer blows, excessive leverage) as the lower steering shaft is sensitive to lateral forces. Installation:  Replace locking plate (25g) with self-locking nut
		Turn rack-and-pinion steering to center position	AR46.20-P-0600-01P
9	Undo hexagon nuts on retaining plate (85b) for rubber boot (85a)	Installation:  Ensure that the rubber boot sits correctly (85a).
			*BA46.10-P-1004-03D
10	Remove steering wheel	Except model 215.374, 220.074/ 174.	AR46.10-P-0100I
		Only model 215.374, 220.074/ 174.	AR46.10-P-0100AM
11	Remove jacket tube switch module (34)		AR54.25-P-2802I
12	Mark steering column with respect to jacket tube (71) (arrow)
13	Remove instrument cluster		AR54.30-P-6015I
14	Remove jacket tube trim (99)
15	Unclip plug (a) from jacket tube (71)
16.1	Remove cover below instrument panel (left)	Model 220 only	AR68.10-P-1500M
17	Detach fore/aft motor connector (M20x1), height adjustment up/down motor (M20x2), and microswitch for steering column drive position (M20x3)
18	Remove both heating / ventilation cross ducts
19	Detach reinforcement brace (98)	Installation:  The steering column must be in extended all the way when the bolts are tightened.
			*BA46.10-P-1003-03D
20	Undo lower bolt of electric steering column adjustment (91b) of electric steering column adjustment (80) to body		*BA46.10-P-1001-03D
21	Undo upper bolt of electric steering column adjustment (91a) of electric steering column adjustment (80) to body	Installation:  Do not tighten nuts and bolts (the jacket tube (71) must remain adjustable). First tighten the upper bolts of the electric steering column adjustment (91a).
			*BA46.10-P-1002-03D
22	Remove jacket tube (71) with lower steering shaft (80a)	Do not use force, as the lower steering shaft (80a) is sensitive to forces applied from the side. Installation:  Pay attention to the marking (arrow) for the straight-ahead position on the jacket tube (71) and steering column.
23	Render electrical system operational	Carry out basic programming (normalize windows and sliding roof, etc.).	AR00.19-P-0200M
24	Install in the reverse order

STEERING SHAFT

STEERING SHAFT

JACKET TUBE