NHTSA ID Number: 11028453
Manufacturer Communication Number: TSB_2073599_4
TSB/Document Date: 2026-02-06
Summary
This TSB provides repair guidance in cases where the cooling fans are obstructed with road debris.
ZN Connection offline
Technical Service Bulletin Transaction No.: 2073599/4
19 Thermal management system: radiator fan 1 and/or 2 stuck, DTCs P2B3000 or
P2B3200 stored in 00C5 Release date: Jan 28, 2026
Condition
Model(s) Year(s) VIN Range Vehicle Specific Equipment
e-tron GT, and RS .
e-tron GT 2022 — 2024 All Not applicable
REVISION HISTORY
Revision | Date Purpose
4 - Revised Service (Change to text)
3 01/15/2026 | Revised title (Change to text)
Revised header (Modify model codes)
Revised Condition (Change to text, added model table)
Revised Technical Background (Change to text)
Revised Production Solution (Change to text)
Revised Service (Change to text)
Revised Warranty (Change to table)
2 06/26/2024 | Revised header (Add Model Year 2024)
Revised Service (Part introduction dates corrected)
Customer states:
The complaint may vary depending on the current driving profile/load requirement profile.
* Heating output too low / no heating output.
* Cooling output too low / no cooling output.
* — Drive power too low.
* Charging capacity too low.
Workshop findings:
The following event memory entries are logged in J1024 Thermal management (address word 00C5):
* DTC P2B3000 - Symptom 59328: Fan 1 stuck on.
and/or
* DTC P2B3200 - Symptom 59342: Fan 2 stuck on.
Technical Background
This may be caused by foreign objects or dirt in the fan module.
Frequent journeys on unpaved roads, roads with a gravel surface or gritted roads increase the likelihood of the
complaint occurring.
Production Solution
Vehicle production date from March 2023 onwards.
Service
If the complaint is about noise, please first work through TSB 2073030: 19 Grinding or knocking noises from electric
cooling fans when active then reassess the complaint.
Several components have been modified to prevent dirt and stones from entering the fan motor. The new
components have additional, larger openings on the underside through which foreign objects can escape and a
protective cap on the fan’s electric motor to prevent foreign objects/dirt from getting in.
The following versions were modified to rectify the complaint.
Component Old version New version Date of introduction of new version
into production
Lower part of wheel housing liner 9J1809958B 9J1809958D 1/31/2022
(right-side)
Lower part of wheel housing liner 9J1809957B 9J1809957D 1/31/2022
(left-side)
Radiator fan (module incl. cowl) 9J1121205C/D | 9J1121205F 5/25/2023
(right-side)
Radiator fan (module incl. cowl) (left- |9J1121203C/D | 9J1121203F 5/25/2023
side)
Protective cap (right-side) 9J1959725 9J1959725A 2/28/2022
Protective cap (left-side) 9J1959459 9J1959459A 2/28/2022
Air deflector (right-side) 9J1121674 9J1121674A 11/15/2021
Air deflector (left-side) 9J1121673 9J1121673A 11/15/2021
If you are replacing a fan as part of this TSB, please check whether there are any other old component versions in
the vehicle on the side which the complaint originates from (left or right side) and replace them with new
component versions.
For example, the fan (right-side) 9J1121205C is the subject of the complaint. Check the version of the components
on the right side of the vehicle according to the above table and replace these components with the new versions if
necessary.
If the new version is no longer available, please use the later one.
Warranty
Claim Type: * — If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Service Number: 1908
Damage Code: 0040
Claim Comment: As per TSB 2073599/4
All warranty claims submitted for payment must be in accordance with the Audi
Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi
Warranty.
Additional Information
The following Technical Service Bulletin may be necessary to complete this procedure:
* TSB 2073030, 19 Grinding or knocking noises from electric cooling fans when active
All parts and service references provided in this TSB (2073599) are subject to change and/or removal.
©2026 Audi
of America, Inc. All rights reserved. The information contained in this document is based on the latest
information available at the time of printing and is subject to the copyright and other intellectual property rights of
Audi
of America, Inc., its affiliated companies, and its licensors. All rights are reserved to make changes at any time
without notice. No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form
or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may these materials be
modified or reposted to other sites without the prior expressed written permission of the publisher.
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TSB/Document ID: TSB_2073599_4
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: VISIBILITY/WIPER
MFR Component System:
MFR Component Subsystem:
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