2022-2026 Audi Control Unit Return Notice SM 13-2026

Audi has released Special Notice SM 13-2026, a Parts Circular, to its dealers regarding certain control units. This notice, dated March 16, 2026, outlines a mandatory return procedure for specific parts to maintain inventory quality and ensure that only acceptable components are supplied to customers. This is an important Audi control unit return directive for dealers.

Important Notice for Audi Dealers

This Special Notice SM 13-2026 primarily targets parts managers and inventory personnel. It emphasizes the need to promptly return specific control units from dealer inventory. The goal is to improve the quality of parts reaching customers and ensure proper credit for returned items.

Affected Control Units

The following control unit part numbers are subject to this return notice:

• 4K8-907-639-H (Control Unit)
• 4K0-907-639-H
• 4M0-907-639-K
• 4KE-907-639-G
• 4N0-907-639-J

These parts are linked to the Forward Collision Avoidance: Adaptive Cruise Control system in various Audi models from 2022 to 2026. Dealers must identify and process the return of these specific components as per the instructions.

Identifying Affected Parts

The key to identifying whether a Generation 05S part is affected or acceptable lies in the presence of a "blue dot" on the part's label. Generation 05S parts with a blue dot are considered acceptable and do not need to be returned. However, Generation 05S parts without a blue dot are affected and must be returned.

The notice provides visual examples:

• Not OK part: Labeled "Not OK NON CONFORME", this part lacks the blue dot. An example part number shown is 4N0 907 660 G 0310 / 4N0 907 660 A H42.
• OK part: Labeled "OK CONFORME", this part clearly shows a blue dot. An example part number shown is 4N0 907 660 G 0310 / 4N0 907 660 A H42.

Dealers should carefully inspect their inventory for these visual cues to determine which parts are part of this Audi control unit return action.

Return Procedure for Dealers

Cooperation in following the claims procedures is crucial for a smooth return process:

1. File a Claim: Submit a separate "Claim with Return" by selecting "Dlr Sup. Req. Return" as the item type. Ensure to complete dealer comments with the Special Notice Number SM 13-2026 and the Parts Circular number.
2. Review Parts On Command: The day after filing the claim, review the Delivery List document on Parts On Command. Contact your facing PDC (Parts Distribution Center) if you encounter any problems or delays.
3. Labeling: Enter your 40000XXXXX delivery document number onto a YELLOW DEPOT REQUEST RETURN label.
4. Adhere Labels: Affix the YELLOW DEPOT REQUEST RETURN label to the package(s) containing the parts being returned.
5. Documentation: Include one copy of the Delivery Document with the returned part(s) inside the package.

Important Warnings

Dealers must adhere to the specified timeline for this Audi control unit return. Items returned after April 6, 2025, will not be accepted for any type of return or buyback. It is essential to re-order any required new materials using the same part number for replacements.