2022-2023 Audi e-tron GT Cooling Fan Malfunction TSB

The 2022-2023 Audi e-tron GT and RS e-tron GT models may experience issues with cabin heating or cooling, reduced drive power, or problems with the high voltage battery not charging to full capacity. Audi has released Technical Service Bulletin (TSB) 2073599/1 to address these concerns, which are often linked to diagnostic trouble codes (DTCs) P2B3000 or P2B3200. This TSB outlines the underlying cause and the necessary repair steps for the Audi e-tron GT cooling fan malfunction.

Symptoms

Owners of affected 2022-2023 Audi e-tron GT vehicles might notice one or more of the following symptoms:

• Insufficient cabin heating or a complete lack of heating output.
• Insufficient cabin cooling or a complete lack of cooling output.
• A reduction in vehicle drive power.
• The high voltage battery not charging to its full capacity.

These symptoms can vary depending on driving style and ambient conditions.

Fault Codes / DTCs

When diagnosing these issues, technicians may find the following Diagnostic Trouble Codes (DTCs) stored in the J1024 Thermal management control unit (address word 00C5):

DTC Code	Symptom Code	Description
P2B3000	59328	Fan 1 stuck on
P2B3200	59342	Fan 2 stuck on

Technical Background

The root cause of the Audi e-tron GT cooling fan malfunction is often the mechanical blockage of one or both radiator fans. Debris, road dirt, or other foreign objects can accumulate in the front wheel housing liner and prevent the cooling fans from operating correctly. This issue is particularly prevalent in vehicles frequently driven on unpaved roads, where debris accumulation is more likely.

Repair Procedure Summary

Audi has implemented production changes to mitigate this issue, introducing improved cooling fans, shrouds, and wheel housing liners designed to reduce debris accumulation. For vehicles experiencing the Audi e-tron GT cooling fan malfunction, the repair involves replacing specific components with these updated versions.

The service procedure detailed in TSB 2073599/1 specifies that if a cooling fan needs replacement, all associated parts on the affected side (left or right) must also be updated to the new version components. This includes the wheel spoiler and wheel housing liner. The updated components feature larger openings on the underside to allow foreign objects to escape and a protective cap on the fan's electric motor to prevent dirt ingress.

Required Parts

The following components have been updated to prevent debris accumulation and should be used for repairs. The table below shows the new part numbers and their introduction dates into production:

Component	New Version Part Number	Date of Introduction of New Version
Lower wheel house protector / spoiler, right side	9J1809958D	1/31/2022
Lower wheel house protector / spoiler, left side	9J1809957D	1/31/2022
Radiator fan (including fan shroud), right side	9J1121205F	2/20/2023
Radiator fan (including fan shroud), left side	9J1121203F	2/20/2023
Protective cap, right side	9J1959725A	2/28/2022
Protective cap, left side	9J1959459A	2/28/2022
Air duct, right side	9J1121674A	11/15/2021
Air duct, left side	9J1121673A	11/15/2021

Owners should always consult with their Audi Parts Department to ensure the latest information and part bulletins are referenced.

Warranty Information

Repairs performed under TSB 2073599/1 may be covered under warranty. The claim types are typically 110 for vehicles up to 48 months or 50,000 miles, and G10 for Audi Certified Pre-Owned (CPO) vehicles, requiring owner verification. If the vehicle is outside of any applicable warranty, this Technical Service Bulletin serves as informational guidance only.

The service number for this bulletin is 1908, with a damage code of 0040. Labor operations include removing and reinstalling the front bumper cover (6329 1900) and the cooling fan housing for both left (1920 1950) and right (1920 1951) sides. Diagnostic time is allocated as 0150 0000, with no allowance for road tests before or after the procedure. All warranty claims must adhere to the Audi Warranty Policies and Procedures Manual.

Important Warnings

Owners should be aware that if the only symptom is a noise from the front of the vehicle, and none of the other symptoms or DTCs described in TSB 2073599/1 are present, and the cooling fans are not mechanically blocked but are noisy due to debris, a different Technical Service Bulletin, TSB 2073030 ("19 Grinding or knocking noises from electric cooling fans when active"), may apply. Technicians should proceed with TSB 2073599/1 only if the specific symptoms and DTCs are confirmed.

NHTSA ID: 10253252