2021-2022 Audi A6 / RS 6 Panoramic Sunroof Noise TSB

Owners of 2021-2022 Audi A6, A6 allroad, and RS 6 Avant vehicles may experience various noises from their panoramic sunroof. These can include rattling, cracking, crunching, groaning, or creaking sounds. Audi has released Technical Service Bulletin (TSB) 2054270/10 to address these concerns, providing technicians with detailed steps to diagnose and repair the source of the noise.

This TSB, identified as 2054270/10, is particularly relevant for vehicles exhibiting an Audi A6 panoramic sunroof noise, especially when driving on poor-quality roads.

Symptoms

Owners may notice several types of noises and operational issues related to the panoramic sunroof system. These include:

• Rattling and cracking noises originating from the panoramic sunroof area.
• Crunching, groaning, or crackling sounds during sunroof operation.
• General noises and vibrations from the sliding/tilting sunroof cover.
• Incorrect operation sequence when opening the sliding/tilting sunroof or moving it to the tilt position.
• Dimensional inaccuracies such as gaps or incorrect dimensions in the sunroof cover.
• Deformed, dirty, or loose components within the sunroof mechanism, including the tilting mechanism for the glass panel, fabric sunroof crossrail, or trim for the panorama roof glass panel.

These symptoms are often more pronounced when the vehicle is driven on rough or uneven roads.

Diagnosis and Trigger Conditions

The primary trigger for the Audi A6 panoramic sunroof noise is typically driving on poor-quality roads, which can exacerbate existing issues within the sunroof mechanism. The TSB notes that several underlying issues can contribute to these noises, including problems with the roller blind, front guide rail, rear guide rail, and the front glass panel itself. Technicians are advised to perform a thorough inspection, as different production changes may have been implemented at various times, meaning some repairs might already be present in a vehicle.

Repair Procedure Summary

The repair outlined in TSB 2054270/10 involves several steps, focusing on different areas of the panoramic sunroof system. It's crucial that work is performed on both the left and right sides of the sunroof where applicable.

Noises from Roller Blind

1. The glass panel is removed, and the roller blind is closed by approximately 20 cm.
2. The roller blind is disconnected from its drive cable, and the blind material is pushed back to expose the bolt for material centering.
3. The bolts are completely removed.
4. The roller blind is then moved towards the rear of the vehicle.
5. Specific marked areas are cleaned using a cleaning solution. Felt pieces, 1 mm thick, are bonded to the underside of the roller blind pan and folded over the guide rail.
6. Locking compound (e.g., Loctite) is applied to the bolts, which are then re-tightened to 3 Nm.

Noises from Front Guide Rail

1. A bolt is loosened a few turns but not completely removed.
2. A plastic wedge is used to slightly lift the guide rail. A 20 x 20 mm felt strip (part number 533 867 910 A) is inserted between the guide rail and the frame's head part.
3. The bolt is then tightened to 5 Nm.

Noises from Rear Guide Rail

1. A specific bolt is located and loosened a few turns but not removed.
2. A small plastic wedge is inserted between the metal panel and the frame to create a slight gap.
3. Spray lubricant (G 060 567 A2) is applied into this gap once or twice.
4. The bolt is then re-tightened to its specified torque.

Noises from Front Glass Panel

1. The center of the glass panel is measured and cleaned using a cleaning solution.
2. A 20 x 20 mm piece of felt strip (part number 533 867 288 A) is bonded onto the glass panel.

After all necessary work, components are reassembled, and the basic settings for the glass panel and blind are performed.

Required Tools or Parts

To perform the repairs outlined in TSB 2054270/10, technicians will need the following specific materials:

• Cleaning solution: D 009 401 04
• Felt strip: 533 867 910 A (for front guide rail)
• Felt strip: 533 863 288 A (for front glass panel)
• Locking compound: Such as Loctite (for roller blind bolts)
• Spray lubricant: G 060 567 A2 (for rear guide rail)

Important Warnings

Owners should be aware that if their vehicle is outside of its warranty period, this Technical Service Bulletin is for informational purposes only. The cost of repairs may not be covered by Audi in such cases.

Warranty Information

For vehicles under warranty, claims for payment must adhere to the Audi Warranty Policies and Procedures Manual. The TSB specifies the following codes for warranty claims:

• Service Numbers: 6028 (for roller blind or front guide rail repair), 6039 (for glass sunroof panel repair).
• Damage Code: 0020
• Labor Operations:
  • Glass tilting roof panel remove + reinstall: 6039 1900
  • Sunshade removal + reinstall: 6070 1950
  • Isolate points of contact in roller shade: 6070 4199
  • Repair 2 guide rails: 6035 4299
  • Glass tilting roof panel apply felt material: 6039 4999
• Diagnostic Time: GFF (No allowance)
• Claim Comment: As per TSB 2054270/10

All part and service references are subject to change, and technicians should consult their Parts Department or ETKA for the latest information.

NHTSA ID: 11015755