Disassemble/assemble electrically adjustable steering column tube

AR46.10-P-0600A

Disassemble/assemble electrically adjustable steering column tube

15.6.09



Disassemble

1

Remove jacket tube

AR46.10-P-0400A

2

Detach seal boot (71c) from the lower steering shaft

3

Detach lower steering shaft (80a)

Model 129

AR46.10-P-0500-01C

Model 140

AR46.10-P-0500-01A



Checking

4

Check lateral runout of the lower steering shaft (80a)

If tolerance is exceeded:

*BE46.10-P-1001-01A

Replace lower steering shaft (80a).

5

Remove lower holder (82)

AR46.10-P-0600-02A

6

Position height adjustment in center position

7

Remove motor (M20m2) for height adjustment

8

Remove motor (M20m1) for fore/aft adjustment

AR46.10-P-0600-03A

9

Remove steering column tube thrust piece (83)

 The steering column tube is equipped with 2 thrust pieces, spring assemblies and retaining rings (83, 83a, 83b)

AR46.10-P-0600-04A

10

Remove bracket (85)

11

Unscrew cap screw (86) and pull inner steering column tube downwards out of the outer steering column tube

12

Disassemble inner steering column tube

Model 129

AR46.10-P-0500-02C

Model 140

AR46.10-P-0500-02A



Assemble

13

Assemble inner steering column tube

Model 129

AR46.10-P-0500-02C

Model 140

AR46.10-P-0500-02A

14

Grease inner steering column tube (81b) and slide into outer steering column tube from below

 The inner steering column tube must slide into outer steering column tube without jamming



Long-life grease

*BR00.45-Z-1001-06A

15

Screw in guide screw (86), align guide groove in inner steering column tube (81b) to cap screw while doing so



*BA46.10-P-1007-03A

16

Install motor (M20m1) for fore/aft adjustment

AR46.10-P-0600-03A

17

Install thrust piece (83) with disk springs (83a), fit new retaining ring (83b)

AR46.10-P-0600-04A

18

Install upper holder (85)

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

AR46.10-P-0600-01A

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

AR46.10-P-0600-01B

19

Install lower holder (82)

Ensure ease of movement

AR46.10-P-0600-02A

20

Install motor (M20m2) for height adjustment



*BA46.10-P-1008-03A

21

Install lower steering shaft (80a).

Model 129

AR46.10-P-0500-01C

Model 140

AR46.10-P-0500-01A

22

Lightly coat seal boot (71c) with multi-purpose paste



Multi-purpose paste

*BR00.45-Z-1009-06A

23

Slide seal boot (71c) on the lower steering shaft

Number

Designation

Model 129

Model 140

BE46.10-P-1001-01A

Maximum lateral runout of lower steering shaft

mm

2.0

2.0

Number

Designation

Model 129

Model 140

BE46.10-P-1001-03A

Measurement "a" on upper holder on steering column tube

mm

21.5+0.5

21.5+0.5

See picture

AR46.10-P-0600-01A

AR46.10-P-0600-01A

BE46.10-P-1002-03A

Steering column tube play, fore/aft adjustment motor

mm

0.25-0.30

0.25-0.30

BE46.10-P-1003-03A

Measurement "b" on upper holder on steering column tube

mm

30+0.5

30+0.5

See picture

AR46.10-P-0600-01B

AR46.10-P-0600-01B

Number

Designation

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

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

Model 140 from vehicle ident. end no. A-166 260

BA46.10-P-1004-01A

Lower steering shaft to upper steering shaft

Nm

110

110

110

Number

Designation

Model 129

Model 140

BA46.10-P-1005-03A

Bolt of steering column tube to forward / aft adjustment motor

Nm

20

20

BA46.10-P-1006-03A

Clamp screw, upper bracket to steering column tube

Nm

5

5

BA46.10-P-1007-03A

Guide bolt of internal electrically adjustable steering column tube

Nm

10

10

BA46.10-P-1008-03A

Bolt of steering column tube to height adjustment motor

Nm

5

5

Number

Designation

Order number

BR00.45-Z-1001-06A

Long-life grease

A 000 989 63 51 11

BR00.45-Z-1009-06A

Multi-purpose paste

A 000 989 80 51 10