2024 Audi e-tron GT Condensation Drain Hose Update 65U6

Audi has issued Technical Service Bulletin (TSB) 65U6 to proactively address a potential issue with the condensation drain hose in certain 2024 Audi e-tron GT and RS e-tron GT vehicles. This TSB, titled "65U6 UPDATE - Replace Condensation Drain Hose (NVLW)," outlines a repair procedure to prevent future leaks stemming from a manufacturing irregularity. This update is crucial for maintaining the integrity of the vehicle's interior and preventing water damage.

Symptoms of a Condensation Drain Hose Leak

Owners of affected 2024 Audi e-tron GT vehicles may eventually notice signs of a water leak inside the vehicle's interior. This occurs because the condensation drain hose, part of the air conditioning system, can develop a leak over time due to a manufacturing irregularity. While the TSB is proactive, a leak would typically manifest as dampness, water stains, or visible water accumulation in the passenger footwell or other interior areas near the air conditioning unit. Such leaks can lead to unpleasant odors, mold growth, and potential damage to electrical components if left unaddressed.

Diagnosis and Trigger Conditions

This issue is attributed to a manufacturing irregularity in the condensation drain hose itself, which can compromise its sealing capability over time. To determine if a vehicle is eligible for this update, technicians must check the ELSA Campaign/Action Information screen for the presence of the 65U6 code. This code confirms the vehicle is part of the affected population and requires the condensation drain hose replacement. The procedure is valid only for vehicles that show this specific 65U6 code on the day of repair. Furthermore, the vehicle must be within its New Vehicle Limited Warranty period for the repair to be covered.

Important Warnings for Owners

Owners should be aware of several key points regarding this service update:

• No Direct Consumer Notification: Audi is NOT directly notifying consumers about this service update. Owners must proactively inquire with their authorized Audi dealer to determine if their vehicle is affected.
• Dealer Stock Embargo: The TSB explicitly states that the procedure must be performed on applicable vehicles in dealer inventory prior to sale. This means that new 2024 Audi e-tron GT and RS e-tron GT vehicles cannot be delivered to customers until this update is completed.
• ELSA System is Authoritative: To verify vehicle eligibility for this update, dealers must always check the ELSA Campaign/Action Information screen. The ELSA system is the only binding inquiry and verification system; other systems are not valid and may result in non-payment of a claim if used for verification.
• Update Status: This update is in effect until removed, indicating its ongoing importance.
• Warranty Claim Protocol: If the update appears to have already been performed but the 65U6 code still shows as "open" in ELSA, the dealer must contact Audi Warranty before proceeding, as another dealer might have performed the update but not yet entered the claim.

Repair Procedure Summary

The repair outlined in TSB 65U6 involves a detailed process to replace the condensation drain hose for the air conditioning system. This procedure is designed to be performed by skilled technicians using specific tools.

1. Preparation and Access: The technician begins by folding back the carpet on the passenger side to gain access to the interior condensation drain hose. It's noted that the underhood section of the drain is not removed during this repair.
2. Component Disassembly: A plastic rivet, which is easily damaged, must be carefully removed. Any pieces of the clip must be removed to prevent future rattle concerns. The existing condensation drain hose is then detached from the HVAC case drain tube.
3. Hose Removal: The old drain hose is fed out from behind the wiring harness. Any cable ties securing the hose are removed. Finally, the drain hose is separated from the bulkhead grommet and completely removed from the vehicle. The bulkhead grommet itself remains in the vehicle and must not be damaged, as it will be reused.
4. New Hose Installation: The new spring clip is slid onto the new hose. The new hose is then carefully inserted into the bulkhead grommet. Critical to this step is checking the alignment: a specific tab on the new hose must sit precisely in the bulkhead grommet groove. A mirror can be used to aid in viewing and correcting this alignment if necessary. The new bulkhead grommet that comes with the replacement hose is not used during this repair.
5. Reassembly and Checks: Reassembly follows the reverse order of removal. Technicians must ensure that the newly installed drain hose has no twists or kinks and is securely fastened in its original position. The alignment of the hose's tab and the bulkhead grommet groove is re-verified. Finally, the carpet is checked for any moisture and dried thoroughly if needed.
6. Post-Repair Diagnostics: After the physical replacement, the vehicle must be connected to a battery charger to maintain stable voltage. The vehicle is then scanned using the GFF diagnostic tester. Any stored fault codes are cleared from the vehicle's memory. The GFF log is sent online upon exiting the session to document the completed repair.

Required Tools and Parts

To perform the condensation drain hose replacement, specific genuine Audi parts and specialized tools are mandated:

• Parts:
  • 9J1820638D: HOSE (the primary replacement component)
  • N 90926401: SPRING CLIP
  • N 0385012: RIVET (if necessary, to replace the removed plastic rivet)
• Special Tools:
  • Scraper Set: -VAS6845- (used for careful removal of interior trim or components)
  • Battery Tester/Charger: Capable of minimum 90 Amp continuous supply (essential for maintaining vehicle voltage during diagnostic procedures)
  • Diagnostic Tester: -VAS6150X/6160X- (or equivalent, for scanning, clearing faults, and logging)
  • Pliers: -T40172C- (or equivalent, for specific removal/installation tasks)

Owner Action

If you own a 2024 Audi e-tron GT or RS e-tron GT, it is highly recommended to contact an authorized Audi dealer to inquire about this TSB 65U6. Even if you haven't experienced any symptoms of a leak, this proactive update can prevent future issues and potential damage to your vehicle's interior. The repair is covered under the New Vehicle Limited Warranty, meaning there should be no cost to you. The dealer will verify your vehicle's eligibility using the ELSA system and perform the necessary condensation drain hose replacement. Ensure the dealer provides you with written documentation of the work performed.

NHTSA ID: 11009981