Disassembly and assembly of the electronically adjustable steering column
Steering column adjustment elements
60 - Height adjustment electric motor with gearbox; 60e - Connecting part; 61 - Cable holder; 62 - Thrust; 62a - Nut; 70g - Upper steering shaft; 70h - Bracket; 71 - Steering column block; 71e - Bracket; 75b - O-ring; 77 - Crawler; 78a - Outer sliding ring; 78b - Internal sliding ring; 79a - O-ring; 80a - Lower steering shaft; 85a - Rubber boot; 85c - Protective cover; 87 - Support; 96 - Nut, 100 Nm; 96a - Blocking plate; M20m1 - Longitudinal adjustment motor; M20m2 - Height adjustment motor; M20x1 - Longitudinal adjustment motor connector; M20x2 - Height adjustment motor connector
Steering column offset motor M20 (on the steering column)
Adjustment motor for telescopic steering column M20m1 (on the steering column)
Disassembly
1. Remove the steering column.
2. Remove the oil seal 71c from the bottom of the steering shaft.
3. Disconnect the lower steering shaft 80a.
Examination
1. Check the lateral runout of the lower steering shaft 80a.
2. Remove bottom bracket 82.
3. Set the height adjuster to the middle position.
4. Remove the drive for adjusting the tilt of the steering column (up/down) М20m2
5. Remove the telescopic adjuster (in/out) M20m1.
6. Remove the steering column stop 83.
7. Remove bracket 85.
8. Unscrew the bolt 86 of the cover fastening and pull down the inner tube from the outer tube.
9. Disassemble the inner tube.
Assembly
1. Assemble the inner tube.
2. Lubricate the inner tube 81b and insert it from below into the outer tube.
3. Screw the bolt 86 into the guide, aligning the groove on the inner tube 81b with the bolt.
4. Install the telescopic adjustment drive (in/out) M20m1.
5. Further assembly is carried out in the reverse order of removal.
The maximum allowable runout of the lower steering shaft: 2.0 mm.