2026 BMW X5 Expansion Tank Return Bulletin TEC808

BMW has issued Parts Bulletin C32-1125-0660, identified as TEC808, to address a critical quality control measure for certain expansion tank components. This bulletin instructs dealerships to inspect their inventory and return specific affected parts. The primary goal is to ensure that only compliant components are used in vehicles, maintaining BMW's quality standards for models such as the 2026 BMW X5, 740i, 530i, X7, and X6.

Identifying Affected Expansion Tank Parts

The bulletin specifically targets expansion tank part number 17 13 8 689 765. To determine if a part is affected, technicians must examine the plastic screw located on the expansion tank. Parts are considered affected and must be returned if they contain an index number 1 or 8 inside this plastic screw. These are designated as "NOT OK" parts.

Conversely, expansion tank parts with index numbers 2, 3, 4, 5, 6, or 7 inside the plastic screw are deemed acceptable for use. The bulletin includes clear visual guidance to help distinguish between affected and non-affected components, highlighting the precise location of the index number for accurate identification. This meticulous inspection process is crucial for the 2026 BMW X5 expansion tank return initiative.

Important Warnings and Deadlines

BMW has issued a strict directive regarding the affected inventory: "Affected available inventory must not be sold." This measure prevents potentially non-compliant parts from reaching customers or being installed in vehicles. Dealerships are required to adhere to specific timelines for this parts return action.

Bulletin TEC808 is valid for a limited period, from November 20, 2025, through December 04, 2025. The deadline for filing a claim under TEC808 is December 04, 2025, meaning all necessary documentation must be submitted by this date. Furthermore, all affected parts must be returned to the Regional Distribution Center (RDC) no later than December 18, 2025. These deadlines are critical for compliance with the 2026 BMW X5 expansion tank return program.

Return Procedure for Dealerships

Dealerships are instructed to return all identified affected parts to their designated Regional Distribution Center (RDC). The return process requires submitting a YR26 damage claim, using BM2 as the order reason. It is imperative that a valid BMW delivery and delivery item number is entered into the claim. Additionally, the specific bulletin identifier, TEC808, must appear explicitly in the text of the TEC claim to ensure proper processing.

Should a dealership be unable to locate the necessary delivery number for an affected part, the bulletin provides a clear alternative. In such cases, an IDS ticket must be submitted to "Parts Logistics>Returns>Claims>Quality>Claims for assistance." This ensures that all affected parts can be accounted for and returned, even if standard documentation is missing.

Reordering and Replacement Parts

After returning affected expansion tanks, dealerships are advised to reorder the same part number as needed to replenish their stock. It is understood that any newly ordered parts will be the compliant versions, free from the index 1 or 8 issue. This ensures that future installations will use only approved components, maintaining the integrity and performance of the cooling system for all affected BMW models, including the 2026 BMW X5 expansion tank.

What This Means for Owners

This BMW Parts Bulletin TEC808 is primarily an internal communication for dealerships and their parts departments. It ensures that only quality-checked expansion tanks are available for sale and installation. Owners of 2026 BMW X5, 740i, 530i, X7, or X6 models who have recently had their expansion tank replaced, or are due for a replacement, might want to inquire with their authorized BMW service center. This can provide assurance that any part installed in their vehicle adheres to the latest quality standards and is not among the affected batch identified by the bulletin. While this is not a recall, it is a proactive measure to maintain component quality.

NHTSA ID: 11025855