Sunroof / Moonroof Frame: Service and Repair
Tilting Mechanism With Cable
Rear Corner Pieces and Tilting Mechanism, Removing
Remove the headliner..
- Remove the sunroof panel 1, 2 and 3.
- Remove sunroof frame.
Remove bolts - 1 - and remove motor - 4 - for panel 3 and motor - 2 - for sun shade from sunroof frame - 3 -.
- Loosen electrical wiring harness from rear corner piece.
- Mark location of rear corner piece - 1 - at left and right of frame - arrow -.
Remove bolts - 2 - from frame - 1 - on both sides.
- Pierce with a knife in the floor space bonded joint between the corner piece and guide rail and separate connection.
- Carefully remove rear corner piece - 2 - from frame - 1 -.
- Remove adhesive residue on frame and on corner pieces.
• Note positions of cables before removing so installation errors can be avoided later.
• Do not remove cable at tilting mechanism.
• The cable with the tilting mechanism can only be slid out of the frame at the places described, for example, with a screwdriver on plastic part.
• Position tilting mechanism when doing so.
- Remove bolts - 2 - on tilting mechanism - 3 - from frame - 1 -.
- Slide tilting mechanism - 2 - for panel 3 in direction of arrow with screwdriver on plastic part - arrow -.
- Tilting mechanism positions itself.
- Slide tilting mechanism - 2 - for panel 3 in direction of arrow completely out of frame with a screwdriver on plastic part - arrow -.
- Panel cable 3 inserted sideways in tilting mechanism.
Rear Corner Pieces and Tilting Mechanism, Installing
- Installation is reverse of removal, noting the following.
- Slide tilting mechanism with cable into guide rail.
- Only slide tilting mechanism with screwdriver on plastic guide, the same as during removal but in reversed direction.
- Install bolts - 2 - on tilting mechanism - 3 - in frame - 1 - and tighten to 2 Nm.
- Adhesive residue must be cleaned from adhesive surfaces on frame or adhesive channel in corner piece.
- Apply 1K MS assembly adhesive (D 172 090 A2) - 2 - as shown in adhesive channel on left and right corner piece - 1 -.
- Slide left and right corner pieces into frame up to marking applied.
- Tighten bolts to - 2 - to 2 Nm.
- Perform leak test.
- To do this, seal water drain hose connection and fill channel in frame with water.
- Water must not escape from frame and corner piece transition.
Before installing motors for sun shade and glass panel, cables or tilting mechanism must be checked for parallel movement and adjusted if necessary.
- Using a tape measure, adjust the cable for the sun shade or glass panel evenly to the left and right crossmember on frame.
- Install motors for sun shade and glass panel.
- Install sunroof frame without panel in vehicle.
- Install sunroof panel 1, 2 and 3 and adjust.
- Perform an adaptation on all motors.
Front Corner Pieces and Tilting Mechanism, Removing
Remove the headliner..
- Remove the sunroof panels 1, 2 and 3.
- Remove sunroof frame.
- Remove panel motor 1.
- Remove bolts - 2 - on frame - 1 - for front corner piece - 3 -.
- Cut through seal between corner piece - 2 - and frame - 1 - with a knife.
- Carefully remove rear corner piece - 2 - from frame - 1 -.
- Slide tilting mechanism - 2 - for panel 1 in direction of arrow with screwdriver on plastic part - arrow -.
- Tilting mechanism positions itself.
- Slide tilting mechanism - 2 - for panel 1 in direction of arrow out of frame - 1 - with a screwdriver on plastic part - arrow -.
- Panel cable 1 inserted sideways in plastic part - 3 -.
Front Corner Pieces With Mechanism, Installing
- Installation is reverse of removal, noting the following.
• Guide rails must be cleaned and re-lubricated with Lithium Grease (G 052 150 A2) before assembly.
- Lightly grease rails with lithium grease (G 052 150 A2) in glide areas.
- Lightly grease plastic guides with lithium grease (G 052 150 A2).
Glide pieces - 2 - in tilting mechanism - 3 - must face toward back when sliding - arrow - into rail - 1 -.
- The tilting mechanisms - 2 - must not be slid into top - arrow - of guide rail - 1 -.
- Only slide tilting mechanisms - 2 - in and forward as far as stop - arrow - with a screwdriver at places shown in magnified area of illustration - arrow -.
• The tilting mechanism end position - 3 - from the panel 1 is reached when the plastic guide - 2 - dips into the end piece and the guide is lowered.
- It is no longer possible to slide farther forward.
- Adhesive residue must be cleaned from adhesive surfaces on frame or adhesive channel in corner piece.
- Apply 1K MS assembly adhesive (D 172 090 A2) - 2 - as shown in adhesive channel on left and right corner piece - 1 -.
- Slide left and right corner pieces into frame up to marking applied.
- Tighten bolts to - 2 - to 2 Nm.
- Perform leak test.
- To do this, seal water drain hose connection and fill channel in frame with water.
- Water must not escape from frame and corner piece transition.
Before installing motors for sun shade and glass panel, cables or tilting mechanism must be checked for parallel movement and adjusted if necessary.
- Using a tape measure, adjust the cable for the sun shade or glass panel evenly to the left and right crossmember on frame.
- Install motors for sun shade and glass panel.
- Install sunroof frame without panel in vehicle.
- Install sunroof panels 1, 2 and 3 and adjust.
- Perform an adaptation on all motors.