Overview - Roof Railing

1 - Seal
2 - Bolt
3 - Roof Railing
4 - Housing Upper Section
5 - Roof Rack Recognition Sensor -G625-
6 - Housing Lower Section
7 - Wire
8 - Nut
9 - Lifter
Roof Railing - Tightening Specification and Sequence
- Tighten the nuts to 10 Nm in the sequence -2, 3, 4, 5 and 1-.

Roof Railing, Removing and Installing
Special tools and workshop equipment required
Removing
- Remove the head curtain airbag igniter from the body. The head curtain airbag remains installed. Refer to → Body Interior; Rep. Gr.69; Head Curtain Airbags; Head Curtain Airbag with Igniter, Removing and Installing.
- Disconnect the connector -1-.
- Remove the nuts -arrows- and move the bracket -2- to the side.

- Remove the nuts -1 to 5-
- Remove the roof railing upward.

Installing
- Clean the threaded pin threads on the roof railing with a wire brush.
- Check the seal for damage and replace if necessary.
- Carefully remove any remaining locking fluid from the nut threads that are installed with locking fluid using a thread tap.
Note
There is no cleaning procedure, since there is a risk of the threaded pins shearing off when disassembling again.
- Insert the roof railing with the guide pin into the mount on the vehicle roof.
- Install the nuts with locking fluid and tighten.
Further installation is the reverse order of removal.
Tightening Specifications
Balancing Element, Removing and Installing
Special tools and workshop equipment required
Removing
- Remove the roof railing. Refer to → Chapter "Roof Railing, Removing and Installing".
- Remove the adjusting screw in the lifter -1- several turns with the -T10470- by counterholding with a screwdriver -2-.
- Remove the lifter from the roof opening -arrow-.

Installing
- Clean the adjusting screw threads -3- with a wire brush.
- Clean the threaded hole of the lifter -1- of locking compound residue with a thread tap.
- Check the stop washer -2- for damage and replace the lifter, if necessary.
- Install the adjusting screw with locking fluid in the lifter.
- Insert the lifter into the roof opening and secure it with the adjusting screw.
Further installation is the reverse order of removal.

Exterior Rearview Mirror
Wheel Housing Liner
Name Badges and Emblems
Battery Test with Vehicle Diagnostic Tester
Hydraulic System