2023-2026 Audi Exhaust Tailpipe Corrosion TSB

Audi has issued Technical Service Bulletin (TSB) 2042920/3 to address concerns regarding corrosion, rust, and excessive dirt on exhaust tailpipes across various 2023-2026 Audi models. This bulletin clarifies the root cause of the issue and provides a recommended solution for owners.

Symptoms of Exhaust Tailpipe Corrosion

Owners may observe several cosmetic issues with their vehicle's exhaust tailpipes. These symptoms are primarily visual and relate to the surface condition of the tailpipe trim:

• Corrosion/Rust: The appearance of rust or general corrosion on the surface of the exhaust tailpipe trim.
• Flawed Coating: The protective coating on the tailpipe trim may appear flawed or damaged.
• Dirt and Contamination: Tailpipes may become excessively dirty or contaminated with soot, leading to an unkempt appearance.

These issues can affect both the right and left exhaust tailpipe trims.

Understanding the Cause

The technical background provided in TSB 2042920/3 indicates that the primary cause of this Audi exhaust tailpipe corrosion and contamination is prolonged exposure to road salt and other aggressive substances. When these materials adhere to the exhaust tailpipes for extended periods, they can damage the surface, leading to the observed dirt accumulation, rust, and corrosion.

Recommended Action for Audi Exhaust Tailpipe Corrosion

Audi's service recommendation focuses on regular maintenance rather than a repair for a manufacturing defect. Owners experiencing Audi exhaust tailpipe corrosion or excessive dirt are advised to:

• Regular Cleaning: Ensure that exhaust tailpipes are cleaned regularly to prevent the buildup of aggressive substances.
• Specific Cleaning Solution: Use a cleaning solution designed for industrial grime or other care products suitable for stainless steel. This helps effectively remove contaminants without causing further damage.

It is important to note that this condition is not considered a warranty-covered item, and claims for this issue will be rejected.

Required Parts for Cleaning

For effective cleaning of exhaust tailpipes, Audi recommends a specific product:

Part Number	Part Description	Quantity
ABS 600 000 10	Industrial contamination remover	1

This industrial contamination remover is designed to tackle the type of grime and corrosive agents that affect the tailpipe surfaces.

Owner Responsibility

To maintain the appearance and integrity of your Audi's exhaust tailpipes, proactive and regular cleaning is essential. Addressing dirt and corrosive substances promptly will help prevent the progression of Audi exhaust tailpipe corrosion and keep your vehicle looking its best.

Source: NHTSA ID 11022704