2021-2022 Audi Clutch End Cover Leaks TSB 2074750/1

Audi Technical Service Bulletin (TSB) 37 24 13 2074750/1 addresses common issues related to Audi clutch end cover leaks in 2021-2022 Audi models. This bulletin provides crucial information for technicians to correctly diagnose and repair leaks originating from the dual clutch end cover, preventing repeat repairs.

Symptoms

Owners or workshop technicians may observe that the "Dual clutch end cover needs to be replaced," often indicated by visible fluid leaks. These leaks typically manifest at the clutch end cover itself, signaling a potential issue with its sealing or the components it protects.

Diagnosis and Trigger Conditions

The primary cause for Audi clutch end cover leaks is often an incorrectly fitted clutch end cover. If the cover is not installed precisely according to the Workshop Manual, leaks are likely to occur, necessitating repeat repairs.

Other contributing factors include damage or scoring on the gearbox housing, particularly in the area where the outer sealing lip sits. Eccentric motion of the dual clutch can also lead to leaks at the oil seal for the clutch end cover. Technicians should check the run-out at the surface of the dual clutch; the maximum permissible deviation is 0.25 mm.

Repair Procedure Summary

To address Audi clutch end cover leaks, the clutch end cover must be fitted exactly as described in the Audi Workshop Manual. A critical step involves ensuring that the sealing lips are installed correctly. Leaks can occur if the sealing lip on the inside of the clutch end cover is not brought into the correct shape or is folded outwards during the cover installation.

The TSB includes several illustrative figures to guide technicians. Figure 1 shows how to bring the sealing lip into the correct installation position. Figure 2 details the correct shape of the sealing lip on the inside of the cover, while Figure 3 illustrates a correctly installed sealing lip on the outside. Conversely, Figure 4 depicts a sealing lip folded outwards, which is a common cause for leaks. Figure 5 further highlights a leak at the outer sealing lip, emphasizing that the inner sealing lip must remain dry without traces of gear oil.

If eccentric motion of the dual clutch is suspected, technicians must check the run-out using specialized tools, as shown in Figure 7. An example of run-out measurement is also available via a video linked in the TSB (Figure 8). All part and service references, including the TSB number 2074750, are subject to change, and technicians should consult the latest information from their parts department and repair manuals.

Important Warnings

Owners should be aware that Audi Technical Service Bulletin 37 24 13 2074750/1 is informational only and is not applicable to any Audi Warranty. This means that repairs performed under the guidance of this TSB may not be covered by the manufacturer's warranty, and owners might be responsible for the cost of diagnosis and repair.

What Owners Should Do

If you experience symptoms of Audi clutch end cover leaks, such as visible fluid leaks around the clutch area, it is recommended to have your vehicle inspected by an authorized Audi service center. While this TSB provides guidance for technicians, the warranty status of the repair is explicitly stated as not applicable. Discuss potential costs and repair options with your service advisor.

Source: NHTSA ID: 11005877