NHTSA ID Number: 11027386
Manufacturer Communication Number: Bulletin 53ZC 20251218
TSB/Document Date: 2026-01-07
Summary
Engine Control Module Software Update (WARR EXT – U82). Problem description updated.
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
Applicable Vehicles
Country
Beginning Model Year
Ending Model Year
Vehicle
Vehicle Count
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
USA
CAN
CAN
CAN
CAN
CAN
CAN
CAN
CAN
CAN
CAN
CAN
CAN
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2022
2025
2025
2025
2022
2025
2023
2024
2024
2024
2025
2025
2025
2025
2025
2025
2022
2025
2023
2023
2023
2025
2025
2025
2025
SQ5 SPORTBACK
A6 SEDAN
A7
A8
Q7
Q8
S4 SEDAN
S5 CABRIOLET
S5 COUPE
S5 SPORTBACK
A6 ALLROAD
SQ5
SQ5 SPORTBACK
A6 SEDAN
A7
A8
Q7
Q8
S4 SEDAN
S5 CABRIOLET
S5 COUPE
S5 SPORTBACK
SQ5
A6 ALLROAD
3,336
2,890
1,459
216
19,219
9,826
1,978
1,965
757
5,504
1,253
9,379
850
131
130
27
2,311
1,096
351
250
268
1,381
1,889
129
Revision History
Revision
Date
Purpose
2
December 18, 2025
Updated technical background
1
December 17, 2025
Original publication
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi
dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 1 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
Condition/Technical Background
This Update has been proactively released to prevent the following condition(s) from occurring in the vehicle:
Criteria
Technical Background
ALL
An optimized software version for the engine control unit is now available for Audi vehicles manufactured
within a specific period. This update optimizes the engine oil pressure under certain operating conditions.
Remedy
Criteria
ALL
Remedy
Update engine control module software
This Update is in effect until removed.
Vehicle must meet all of the following criteria:
• Procedure is valid only for vehicles that show the 53ZC code in the ELSA Campaign/Action Information screen
on the day of repair.
• Vehicle must be within the U82 Warranty Extension warranty parameters (8 yrs./80,000 mi/129,000 km).
• Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin.
• Procedure must be performed on applicable vehicles in dealer inventory prior to sale.
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 2 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
Service
NOTE:
•
ELSA is the only valid inquiry/verification source. Check ELSA on the day this vehicle UPDATE will be
performed to verify vehicle eligibility for the UPDATE. Status must show “open”. Attach an ELSA printout
showing the “open” status to the repair order.
•
If this UPDATE appears to have already been performed but the code still shows open in ELSA, contact
Warranty before proceeding further. Another dealer may have recently performed this UPDATE but not
yet entered a claim for it in the system.
•
ELSA may also show additional open action(s); if so, inform your customer - this work can be done while
the vehicle is in for this UPDATE.
•
Contact the Warranty Helpline (U.S.) or the Warranty Campaign Specialist (Canada) if you have any
questions.
•
Enter the VIN in ELSA and proceed to the
“Campaign/Action” screen.
TIP
On the date of repair, print this screen and keep a
copy with the repair order.
•
Confirm the Campaign/Action is open . If the status is closed, no further work is
required.
•
Note the Applicable Criteria ID for
use in determining the correct work to be done
and corresponding parts associated.
CRITICAL REPAIR STEP
STOP!
All campaigns/actions with a repair available must
be performed in order of the Start date .
The oldest should be performed first (unless
otherwise noted in the repair instructions).
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 3 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
SVM Update Instructions
NOTE
Prior to launching the VAS Diagnostic Tester and starting an update, ensure the following conditions are met;
The ODIS software is completely up to date.
•
Refer to the “Current ODIS Service Version” circular found in Elsa2Go Service References.
The battery charger is connected to the vehicle battery and remains connected for the duration of the
software update.
•
Battery voltage must remain above 12.5 volts (or higher, if directed in the work instructions)
for the duration of the software update. Failure to do so may cause the update to fail, which could
result in damage to the control module. Control modules damaged by insufficient voltage will not
be covered.
The screen saver and power saving settings are off.
•
Failure to do so may result in the tester entering power save mode during the software update,
which could result in damage to the control module.
The VAS Diagnostic Tester is plugged in using the supplied power adapters.
•
Under no circumstances should the tester be used on battery power alone during the software
update. Failure to do so may result in the tester powering off during the update, which could result
in damage to the control module.
Flash process through “Audi Flashing” not Guided Fault Finding (GFF).
•
DO NOT USE Guided Fault Finding (GFF) to perform this flash. Using GFF will cause the flash
to take longer. Requests for additional time will not be considered.
The VAS Diagnostics Interface MUST ONLY be connected to the tester with a USB cable.
•
Performing a software update using a Bluetooth or Wi-Fi connection increases the risk of losing
connection during the update, which could result in damage to the control module.
It also greatly increases the time required to perform the update. Requests for additional time or
parts will be denied if the GFF log shows the update was performed using Bluetooth or WiFi.
TIP
As a best practice, customer presets should be documented prior to performing any update in the event these
settings are lost during the update.
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 4 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
NOTE
•
All campaign software updates must be completed during a single, standalone ODIS Diagnostic Session.
You must fully complete this campaign and send all logs before beginning any other campaigns or
operations.
•
If there are any ODIS “Hot-Fix” patches installed, they must be removed from the scan tool before
beginning this operation. ODIS “Hot-Fix” patches may affect the update process.
WARNING
Radiator Fan(s) may cycle ON high speed during the Update Process! There is a serious risk that personal injury
may result if contact is made with spinning fan blades. Keep hands and all objects away from Radiator Fan(s)
during Update Process!
IMPORTANT
To Update-Programming using SVM, review and follow instructions in Technical Bulletin 2011732: Software
Version Management (SVM) Operating Instructions for the US, or 2037026: Working with the Software Version
Management (SVM) for Canada.
The SVM Process must be completed in its entirety so the database receives the update confirmation response.
A warranty claim may not be reimbursed if there is no confirmation response to support the claim.
•
Switch off all consumers, air conditioning, heater blower motor, lights, heated seats, etc.
•
Connect battery charger.
•
Ensure the latest version of ODIS is downloaded.
•
Ensure diagnostic head is connected to ODIS tester via USB cable.
•
Move selector lever to P.
•
Use operating mode, FLASH.
•
Select “SVM – Code Input”.
•
Enter SVM code 53ZCA170 and follow the on screen prompts.
•
Ensure the diagnostic log is sent to GFF Paperless after completion.
Proceed to Section C
IMPORTANT
If the software update fails for any reason, ODIS feedback must be sent prior to further diagnosis. This ensures
the failure/error is reported. Failure to do so may result in non-payment of consequential requests for additional
time or parts.
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 5 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
Warranty
Claim Entry Instructions
The labor times listed here may differ from the labor operations and labor times listed in ELSA.
After campaign has been completed, enter claim as soon as possible to help prevent work from being duplicated
elsewhere. Attach the Elsa screen print showing action open on the day of repair to the repair order.
If a customer declines campaign work, refer to the “Customer Declines Campaign/Update Repair” section in the
Campaign/Update Policy and Procedures Manual.
Service Number
53ZC
Damage Code
0099
Parts Vendor Code
Claim Type
002
Sold vehicle: 7 10
Unsold vehicle: 7 90
Causal Indicator
Vehicle Wash/Loaner
Criteria I.D.
Mark labor as causal
Do not claim wash/loaner under this action
ALL
LABOR
Labor Op
Time Units
Description
0151 00 10
SEE ELSA
Software update
(setup + battery charger)
0151 00 60
Time stated on
diagnostic protocol
Software update
(GFF Operations)
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 6 of 7
Technical Service Bulletin
53ZC UPDATE
Engine Control Module Software Update (WARR EXT – U82)
Additional Actions Some of the affected vehicles may be involved in additional Actions. Please check your
ELSA Campaign/Action Information screen so that any additional required work can be
done simultaneously.
Verifying Vehicle
Eligibility
To verify vehicle eligibility for this Update, 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.
Help for Claim
Entry
For questions regarding claim entry, contact Audi Warranty.
Required
Customer
Notification
Inform your customer in writing by recording on the Repair Order any and all work that
was conducted on the vehicle, including any and all updates completed under this Update.
Required Special Tools
Battery Tester/Charger
-VAS5908(or equivalent charger
with a current rating of at
least 90A)
Diagnostic Tester
-VAS6150X/VAS6160X(or equivalent)
Additional Information
All parts and service references provided in this Update are subject to change and/or removal. Always check
ELSA for the most current version of this document.
The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
53ZC Page 7 of 7
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TSB/Document ID: Bulletin 53ZC 20251218
Replacement Service Bulletin Number:
MFR Communication Date: 2025-12-18
MFR Internal Campaign ID/Software Version: 53ZC
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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