Removing and installing jacket tube

AR46.10-P-0400A

Removing and installing jacket tube

23.8.99

Value changed from 8 to 20 Nm

Value in BA46.10-P-1001-03A changed

*BA46.10-P-1001-03A

 

Removing, installing

1

Remove cover below instrument panel

Model 129

ra68001290150x

Model 140

ra68001400150x

Model 170

AR68.10-P-1500G

Model 202

AR68.10-P-1500E

Model 208

AR68.10-P-1500K

2

Remove steering wheel

Model 129 up to veh. ident. end no. 079 794 and 140 up to veh. ident. end no. 123 446

AR46.10-P-0100A

Model 129 as of veh. ident. end no. 079 795 and 140 as of veh. ident. end no. 123 447
Model 202

AR46.10-P-0100B

Models 170, 208

AR46.10-P-0100C

3.1

Remove carrier plate (32l) with horn and airbag carbon brushes

Model 129 up to veh. ident. end no. 079 794 and 140 up to veh. ident. end no. 123 446

4.1

Remove contact spiral (A45)

Model 129 as of veh. ident. end no. 079 795 and 140 as of veh. ident. end no.123 447

Model 202

AR46.10-P-0200A

Models 170, 208

AR46.10-P-0200B

5.1

Remove steering angle sensor (N49)

Model 129 with ADS, CODE 217a up to veh. ident. end no. 079 794 and 140 with ADS, CODE 217a up to veh. ident. end no. 123 446

AR46.10-P-0300A

6

Remove instrument cluster

Model 140

ra54001406015x

Model 170

AR54.30-P-6015EC

Models 129, 202, 208, 210

AR54.30-P-6015EA

7.1

Remove steering lock (37)

Models 129, 140

AR46.10-P-0900A

Models 202, 170

AR46.10-P-0900B

8.1

Remove electronic steering lock (ESC)

Model 208

AR46.10-P-0910B

9

Remove combination switch (S4)

Model 129

AR54.25-P-2800CS

Model 140

ra54001402800x

Models 170, 202, 208

AR54.25-P-2800EA

10

Remove jacket tube trim (99)

11.1

Disconnect contact spiral / airbag unit connector

Models 170, 208

12.1

Detach operating switch (93a) and expose, or disconnect electrical connector

Vehicles with adjustable steering column

 Installation: Ensure that control cables and electrical cables are correctly routed

12.2

Detach reinforcement brace (98)

Vehicles with adjustable steering column

13

Unscrew upper bolt (25a) of steering coupling

 On vehicles with contact spiral, only disconnect connector after removing the contact spiral

 Models 129, 170, 202, 208

*BA46.10-P-1001-01B

 Model 140 up to veh. ident. end no.

A - 033 950

*BA46.10-P-1001-01A

 Model 140 as of veh. ident. end no.

A- 033 951 to A - 166 259

*BA46.10-P-1002-01A

 Model 140 as of veh. ident. end no.

A - 166 260

*BA46.10-P-1003-01A

 Note technical modifications on model 140: 



Bolted connection of steering shaft and steering coupling

BT46.10-P-9110-01A



Bolted connection of steering shaft and steering coupling

BT46.10-P-9111-01A

14

Detach lower nuts on jacket tube (71b)



*BA46.10-P-1001-03A

15

Detach upper bolts on jacket tube (71a)

  Installation:

Do not tighten bolts and nuts (the jacket tube must remain adjustable). Electric jacket tube:

Tighten the upper bolts first
Rigid and manually adjustable jacket tube:

Tighten the bottom nuts first

*BA46.10-P-1002-03A

16

Pull jacket tube with lower steering shaft out of steering coupling (25) and remove

 Do not use force as the lower steering shaft (80a) is sensitive to the effects of side force

 Installation:

 Ensure the straight-ahead position of the jacket tube (triggering lugs must point towards the combination switch) and steering gear

 Push lower steering shaft as far as possible into steering coupling



Inspecting

17

Check lateral runout of lower steering shaft (80a)

If necessary if tolerance is exceeded: 

*BE46.10-P-1001-01A

Replace lower steering shaft (80a).

18

Install in the reverse order

Number

Designation

Model 129

Model 140

Model 170

Model 202

Model 208

BE46.10-P-1001-01A

Maximum lateral runout of lower steering shaft

mm

2.0

2.0

2.0

2.0

2.0

Number

Designation

Model 140 up to veh. ident. end no. A-033 950

Model 140 as of veh. ident. end no. A-033 951 to A-166 259

BA46.10-P-1001-01A

Bolt of steering joint

M8

Nm

25

-

BA46.10-P-1002-01A

Bolt of steering joint

M10

Nm

-

30

BA46.10-P-1003-01A

Bolt of steering joint

M8

Nm

-

-

Number

Designation

Model 140 as of veh. ident. end no. A-166 260

BA46.10-P-1001-01A

Bolt of steering joint

M8

Nm

-

BA46.10-P-1002-01A

Bolt of steering joint

M10

Nm

-

BA46.10-P-1003-01A

Bolt of steering joint

M8

Nm

20

Number

Designation

Model 129

Model 170

BA46.10-P-1001-01B

Bolt of steering joint

Nm

30

30

Number

Designation

Model 202

Model 208

BA46.10-P-1001-01B

Bolt of steering joint

Nm

30

30

Number

Designation

Model 129

Model 140

Model 170

Model 202

BA46.10-P-1001-03A

Lower nut, jacket tube to body

Nm

20

20

8

8

BA46.10-P-1002-03A

Upper bolt, jacket tube to body

Nm

20

20

20

20

Number

Designation

Model 208

BA46.10-P-1001-03A

Lower nut, jacket tube to body

Nm

20

BA46.10-P-1002-03A

Upper bolt, jacket tube to body

Nm

20