Removing and installing sliding sunroof frame - Saloon: Audi A6/A7 C7

🧭 Before you start

Tilt the front backrests back, lower the headliner, unplug connectors and detach the drain hoses. Remove all frame bolts except the central side ones, have two helpers support the frame, then release the central bolts and lift it out. Fit the frame loosely, locate it with an 8 mm drill bit, tighten the bolts across the width front then rear and along the length rear to front, reconnect the drain hoses and carry out encoding and adaption.

Fits: Audi A6/A7 C7 (4G, 2011–2018); platform code 4X

Don't miss

• Lower the headliner only; it does not need removing.
• Leave the central side bolts until two people are supporting the frame.
• Locate the frame with an 8 mm drill bit at the locating holes before tightening.
• Follow the tightening sequence: across the width, then along the length from rear to front.
• Perform encoding and adaption via guided functions afterwards.

Written for this job from the workshop steps below · TorqFix editorial.

📋 Procedure

1. ⚠ After removing and installing mechanical components or control units for the sliding panoramic sunroof, always perform encoding/adaption via the Guided Functions in Guided Fault Finding mode (diagnostic address 46) . — Tilt front seat backrests to rear.
2. Only lower headliner (do not remove) General body repairs, interior70Roof trim panels; Removing and installing moulded headliner.
3. Unplug electrical connectors.
4. Detach water drain hoses (front and rear). [Note: Only unscrew central bolts (at sides) from frame as a final step.Two mechanics must hold the frame in position so that a third can remove the bolts and the frame can be lifted out.]
5. Unscrew bolts on both sides; do not unscrew central bolts.

6. Have other mechanics hold frame; only then can central bolts be loosened and then frame be lifted out through roof opening.
7. Loosely secure frame with bolts.
8. Locate frame at locating holes with ∅ 8 mm drill (front and rear) .
9. Tighten bolts along width of frame to torque (first at front, then at rear).
10. Tighten bolts along length of frame alternately to torque (from rear to front).
11. Connect water drain hoses (front and rear) to frame.

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