2023-2026 Audi Exterior Rubber Trim Spotted TSB

Audi has issued Technical Service Bulletin (TSB) 2049680/3 to address a common aesthetic concern: spotted exterior rubber trim on various models. This bulletin, last revised on January 21, 2025, provides clear guidance for owners and technicians on how to resolve and prevent the appearance of spots and stains on the rubber components around windows and trim strips. The TSB applies to a wide range of Audi vehicles from model years 2023 through 2026.

Symptoms

Owners of affected Audi vehicles may notice distinct spotting or staining on the exterior rubber components of their car. Specifically, the TSB highlights two primary areas where this "Audi exterior rubber trim spotted" condition is observed:

• The rubber of the window guide is stained.
• The rubber of the window slot trim strip is stained.

These stains can detract from the vehicle's appearance and may be a source of concern for owners. The spotting typically appears as white or discolored marks on the black rubber surfaces, as illustrated in the TSB's accompanying images.

Diagnosis / Trigger Conditions

The root cause of the "Audi exterior rubber trim spotted" issue, as identified by Audi, is the use of insect cleaner. Many commercially available insect removers contain chemicals that can react with or degrade the material of the rubber seals and trim strips, leading to the observed staining. When these cleaners are applied to the vehicle and come into contact with the rubber, they can leave behind persistent spots that are difficult to remove with standard washing.

Repair Procedure Summary

Fortunately, resolving the spotted exterior rubber trim issue is straightforward and does not typically require part replacement. The recommended service procedure outlined in TSB 2049680/3 involves a simple cleaning process:

1. Prepare a cleaning solution: Use warm water mixed with a mild, soapy solution.
2. Apply with care: Dampen a soft cloth or sponge with the soapy water.
3. Gently clean: Carefully wipe down the stained rubber seals and trim strips. Avoid aggressive scrubbing, which could damage the rubber surface.
4. Rinse and dry: After cleaning, rinse the area with clean water to remove any soap residue and dry with a clean, soft towel.

This method is effective for removing the stains caused by insect cleaner without further damaging the rubber.

Important Warnings

Audi's TSB 2049680/3 includes critical warnings for both owners and technicians to prevent recurrence and unnecessary repairs:

• Do not use insect cleaner: It is explicitly stated, "Do not use insect cleaner as the stains will reappear." Continued use of these products will only lead to the problem returning.
• Avoid groundless parts replacement: The TSB warns that "A groundless parts replacement under warranty will be redebited." This means that if a dealer replaces rubber trim parts without proper diagnosis, especially when the issue is due to insect cleaner use, the warranty claim may be rejected, and the dealer could be charged back for the cost. This emphasizes that cleaning, not replacement, is the correct solution for this specific issue.
• Warranty Coverage: This Technical Service Bulletin is informational only and is not applicable to any Audi Warranty. This means the cleaning procedure is generally not covered under the vehicle's warranty, as the staining is typically caused by external factors (use of specific cleaning products) rather than a manufacturing defect.

Owner Action

If you notice your Audi exterior rubber trim spotted, the first step is to identify if you have used insect cleaner on or near these areas. If so, follow the simple cleaning procedure detailed above using warm, soapy water and a soft cloth or sponge. It is crucial to discontinue the use of any insect cleaners on or around your vehicle's rubber seals and trim strips to prevent the stains from reappearing.

Should the stains persist after proper cleaning, or if you are unsure about the cause, it is advisable to consult with an authorized Audi service center. Be prepared to discuss your car care routine, including any cleaning products you might have used. Remember that this TSB, 66 25 16 2049680/3, is informational, and the cleaning process is generally not covered under warranty.

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Source: NHTSA ID: 11013723