Sunroof / Moonroof: Service and Repair
Sunroof
Always use the correct tightening specification when installing the frame screws.
1 Bolt
• 6 Nm
• M 6 x 25
2 Bolt
• 8 Nm
• M 6 x 16
3 Sunroof Frame
• When removing, 4 helpers are needed to lift roof off vehicle.
• Remove the headliner..
- Remove water drain hoses from sunroof frame.
- Remove front - 4 - and rear - 12 - angle bracket.
- Remove screws - 1 -.
• Two screws - 2 - must remain in sides approximately in the middle of the sunroof frame.
• Otherwise, roof could fall into vehicle.
• This screws hold the frame in the vehicle until the helper lift the roof off.
- Remove screws - 2 -, but not the screws located on the middle of the sides.
- Helpers must now hold roof through front door and rear lid opening.
- Helpers lift roof out towards rear through rear lid opening.
• Installing:
- Installation is reverse of removal, noting the following:
- Install the sunroof into the roof opening with another technician.
- Loosely secure sunroof to roof frame at front, center and rear of each side with 3 screws per side.
- Roof can be secured in exact installation location with two 8 mm diameter drill bits through mounting holes on sunroof and front of body.
• Align mounting holes (oblong hole) of sunroof frame and rear body.
• If necessary, insert an additional 8 mm diameter drill bit into holes.
- Install remaining bolts.
- Tighten front bolts to 6 Nm
- Tighten rear and side bolts to 8 Nm.
- Perform adaptation after successful installation.
• Adhesive strips must be attached in specific places before installing a new frame.
4 Front Angle Bracket
• Removed.
5 Wind Deflector
• Removing and installing, refer to => [ Wind Deflector ] Service and Repair.
6 Front Sun Shade
• Removing and installing, refer to => [ Front Sun Shade, Removing ] Sun Shade.
7 Panel 1
• Removing and installing, refer to => [ Panel 1 ] Service and Repair.
8 Sunroof Seal
9 Panel 3
• Removing and installing, refer to => [ Panel 3 ] Service and Repair.
10 Panel 2
• Removing and installing, refer to => [ Panel 2 ] Service and Repair.
11 Rear Sun Shade
• Removing and installing, refer to => [ Rear Sun Shade, Removing ] Sun Shade.
12 Rear Angle Bracket
• Removed.
Adhesive Tape For The Frame
- Apply adhesive tape - 1 - to the frame in the center, at the front and at the rear, as illustrated, before installing.
- Apply two strips of adhesive tape, one on top of the other, on the crossbrace.
Mounting Bracket
• Front mounting bracket - 1 -.
• Tighten screws - 2 - to 8 Nm when installing.
• Rear mounting bracket - 3 -.
• Tighten screws - 4 - to 8 Nm when installing.
Sunroof Seal, Removing and Installing
Special tools, testers and auxiliary items required
• Roller (3356)
- To remove, remove seal all around from roof opening.
Seal, Installing
• Always replace the seal after replacing the sunroof.
- Before installing seal, remove adhesive residue if necessary.
- Make sure there is no dust or grease on the adhesive surface.
- Clean adhesion surface thoroughly with Cleaning Solution (D 009 401 04).
- Center seal so joint is at center of front roof opening.
- Remove protective film from adhesive tape left of joint.
- Position seal on flange and at the same time, press it on past radius.
- Remove protective film from adhesive tape in sections and press seal on.
- Press seal on evenly to prevent any excess length.
- Press seal on firmly and evenly with a roller, running it all around 2 times.