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.