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 - Sealing ring; 77 - The Crawler; 78a - Outer sliding ring; 78b - Inner sliding ring; 79a - Sealing ring; 80a - Lower steering shaft; 85a - Rubber cover; 85c - Protective cover; 87 - Support; 96 - Nut, 100 Nm; 96a - Locking plate; M20m1 - Longitudinal adjustment electric motor; M20m² - Height adjustment motor; M20x1 - Longitudinal adjustment motor connector; M20x2 - Height adjustment motor connector
Steering Column Shift Motor M20 (on the steering column)
Telescopic steering column adjustment motor M20m1 (on the steering column)
Disassembly
1. Remove the steering column.
2. Remove 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 the lower bracket 82.
3. Set the height adjuster to the middle position.
4. Remove the steering column tilt adjustment drive (up/down) M20m²
5. Remove the telescopic adjustment drive (inside/outside) M20m1.
6. Remove steering column stop 83.
7. Remove bracket 85.
8. Unscrew bolt 86 securing the cover and remove the inner pipe downwards from the outer pipe.
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 bolt 86 into the guide, aligning the groove on the inner tube 81b with the bolt.
4. Install the telescopic adjustment drive (inside/outside) M20m1.
5. Further assembly is carried out in the reverse order of removal.
Maximum allowable runout of the lower steering shaft: 2.0 mm.
Material created based on the website: mercedesman