2023-2026 Audi Engine Oil Leak Detection TSB 2060750/4

Audi Technical Service Bulletin (TSB) 2060750/4, released on August 1, 2025, provides detailed instructions for technicians on how to effectively locate engine oil leaks using a specialized UV leak detection additive. This bulletin is crucial for accurately diagnosing and addressing oil leaks in various Audi models from 2023 to 2026. The primary goal is to enhance the precision of Audi engine oil leak detection within the engine compartment and lubrication system.

What's Being Addressed

This TSB addresses common customer and workshop complaints related to engine oil issues. Owners may report symptoms such as the engine lubrication system having "engine oil -> too little," visible "contamination -> contaminated with oil" in the engine compartment, or general "leaks -> oil leaking." Workshop findings often confirm an oil leak in the engine area, sometimes linked to "engine oil consumption -> too high" or leaks from specific components like the cylinder head, valvetrain, or oil pan.

The technical background explains that a fluorescent yellow leak search additive is used. This additive mixes with the engine oil and glows fluorescent yellow under a UV lamp, making leaks visible. The additive is safe for both gasoline and diesel engines and does not require an oil change after use. It can remain in the engine.

It is important to note a discrepancy between the TSB's content and the vehicles linked by NHTSA. While the TSB explicitly states it applies to "All Combustion Engines," the NHTSA linked vehicles list includes electric models such as the 2023 Audi e-tron and 2026 Audi S e-tron GT. Owners of electric vehicles who encounter this TSB should consult their Audi dealer for clarification, as engine oil leaks are specific to combustion engines.

Important Warnings

Audi has issued a critical warning regarding the use of the leak detection additive:

• "The UV leak detection additive G 052 940 A1 is not approved for gearboxes!"

This means the additive should only be used for Audi engine oil leak detection and not in transmission systems.

Repair Procedure Summary

Technicians will follow a straightforward two-step process for Audi engine oil leak detection:

1. Additive Application: Add 10 mL of the leak search additive G 052 940 A1 into the engine via the oil filler neck. This quantity is sufficient for up to 5 quarts of engine oil. For larger oil capacities, the amount of additive should be doubled. Audi confirms that adding this product will not cause any damage to the engine.
2. Leak Detection: After adding the fluid, the engine is run to circulate the additive. Technicians then use a UV lamp, specifically a VAS 231005 (WVA-074) or an equivalent tool, to inspect the engine and surrounding areas for fluorescent yellow glow, indicating the exact location of the oil leak.

Required Parts and Tools

To perform the oil leak detection procedure outlined in TSB 2060750/4, specific parts and tools are required:

• Part Number: G 052940A1 (Leak search additive, 10 mL quantity)
• Tool Number: VAS231005 (WVA-074) or equivalent (UV lamp)

Technicians are advised to always check with their Parts Department and/or ETKA for the latest information on parts and bulletins.

Warranty Information

This Technical Service Bulletin is informational only if the vehicle is outside of any warranty coverage. For warranty claims, the Service Number is 1701 and the Damage Code is 0055. Labor operations for cleaning the engine are coded as 1001 2952 with an estimated time of 20 TU (Technical Units). All warranty claims must comply with the Audi Warranty Policies and Procedures Manual and are subject to review by Audi Warranty.