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Technical Service Bulletin Transaction No.: 2079911/1
01 MIL on, DTC P050600 with Symptom 4008 stored in ECM V6 TFSI Release date: Nov 10, 2025
Condition

Model(s) Year(s) VIN Range Vehicle Specific Equipment

S5 (FU), SQ5, and SQ5

Sportback (GU) 2025 All Not applicable

Customer Statement:

* The MIL or exhaust emissions warning light is displayed int eh instrument cluster after starting the engine. The
engine speed may be noticeably low in isolated cases.

Or

* There is no customer complaint, and the DTC specified in the workshop findings is found in the ECM in
connection with a different complaint.

Workshop Findings:

The following DTC or DTCs and symptom code(s) is/are logged in the Engine Control Module -J623-, (address word
0001):

* DTC P050600: Idle Speed Control, RPM below spec value, symptom code 4008 static/ intermittent

Technical Background

Software issue in the engine control unit (diagnostic address 0001) and in the main control unit for drive system and
running gear systems (HCP1, diagnostics address 812C).

Production Solution
Not applicable.

Service
This bulletin replaces Pending Service Solution TSB 2078915, 07 MIL on, DTC P050600 Stored in ECM - V6 TFSI.

Please check whether TSB 2079690, 00 Combined software update 03.10.00/C (28.13.01) KD2 is visible for this
vehicle. If this is the case, please perform the software update described in TSB 2079690.

Warranty
Claim Type: * — If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
If the combined software update was performed as described in TSB 2079690:
Service Number: 2470
Damage Code: KD2

Labor Operations: Software Update, including connecting battery 01510010 |See SRT with

charger associated
operations
Fixed rate for software update, including all 01510040 |130TU

required preliminary and follow-up work (including
bus sleep cycle, calibration drive, additional work
and restarting software update if flashing is
aborted)

When performing the combined software update, time stamps are not required for billing
under warranty. You are therefore permitted to work on other vehicles at the same time.
The combined software update can also be performed by non-productive personnel.

If repair must be postponed:

Damage Code: 0055
Labor Operations: GFF/ Guided Functions 01500010 |See SRT with
associated
operations
GFF/ Guided Functions 0150 0060 =| Time stated on the
diagnostic protocol
Claim Comment: As per TSB 2079911/1

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.

When performing the combined software update, time stamps are not required for billing under warranty. You are
therefore permitted to work on other vehicles at the same time. The combined software update can also be
performed by non-productive personnel.

Additional Information

The complaint does not occur during normal vehicle operation. Generally, a low charge level occurs during extended
stationary periods during the transportation process or while the vehicle is at the workshop.

All part and service references provided in this TSB (2079911) are subject to change and/or removal. Always check
with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the Repair
Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.

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