2010-2022 Audi Frameless Window Auto-Drop Inoperative in Freezing Weather

Symptoms

Owners of certain 2010-2022 Audi models may experience issues with the Audi frameless window auto-drop function during freezing weather conditions. The primary symptoms include:

• "Front and/or rear doors cannot be opened or closed in freezing weather."
• The windows may be frozen to the outer window slot seals, preventing them from lowering.
• Windows fail to drop when attempting to open or close the doors.
• "The window auto-drop function is inoperative due to snow and ice build-up."

This condition arises when snow and ice accumulate between the window glass and the outer window slot seals. This physical blockage prevents the window from lowering slightly, which is necessary for the frameless door to open and close correctly. This issue can occur even if the window slot seal is of the latest generation.

Important Warnings

Audi Technical Service Bulletin 64 21 77 2062618/1 explicitly states crucial information for owners and technicians:

• Parts Replacement: "Parts replacement does not solve this issue." The problem is environmental, not due to a faulty component. Claims for replaced parts related to this specific issue will be subject to review by Audi.
• Warranty Coverage: This Technical Service Bulletin is informational only and is not applicable to any Audi Warranty. This means that addressing the snow and ice build-up is typically considered routine maintenance and not covered under warranty.

Diagnosis

Technicians or owners can diagnose this issue by observing the window's behavior in freezing conditions. If the window fails to drop when the door handle is pulled, and visible snow or ice is present on the window or outer window slot seals, it indicates that the Audi frameless window auto-drop function is being obstructed. Figures 1 and 2 in the bulletin illustrate typical snow and ice build-up on window and window slot seal surfaces, as well as areas where snow and ice can adhere, disabling window operation.

Repair Procedure Summary

To resolve the inoperative Audi frameless window auto-drop function, follow these steps:

1. Remove Snow and Ice: Using a plastic scraper, carefully remove any snow and ice from the windows. Refer to your vehicle's owner's manual for detailed instructions on this process.
2. Apply De-icer (If Needed): If snow or ice remains, spray an Audi-approved solvent-free de-icer onto the windows. Focus on the contact area between the outer window slot seal and the window. This helps to melt any stubborn ice and eliminate the blockage. Figure 3 in the bulletin shows an example of solvent-free de-icer spray being used to melt snow and ice.
3. Check Operation: After clearing the snow and ice, check the operation of the doors and windows. Ensure that the window auto-drop function works properly when opening and closing the doors.

Owner Action

If you experience your 2010-2022 Audi's frameless windows failing to drop in freezing weather, the solution involves manual intervention. You should first attempt to clear any snow and ice from the windows and their seals using a plastic scraper. If necessary, apply an Audi-approved solvent-free de-icer. This issue is not a mechanical defect but rather an environmental one, and parts replacement will not resolve it. Since this TSB is informational and not covered by warranty, owners are responsible for performing these steps.

Additional Information

For more details on vehicle care and cleaning, consult the "Care and cleaning" chapter in your Audi Owner's Manual. All part and service references mentioned in this TSB (2062618) are subject to change. Always consult your Parts Department or ETKA for the most current information and bulletins. Additionally, refer to the Repair Manual for any fasteners, bolts, nuts, and screws that may require replacement during other repair procedures.

NHTSA ID: 10190533