A Connection offline
Technical Service Bulletin Transaction No.: 2080935/2
91 04 loses internet connection intermittently / SOS LED off / GPS position incorrect / Release date: Apr 29, 2026
noises from center loudspeaker
Condition
Model(s) VIN Range Vehicle Specific Equipment
Q4 e-tron, and Q4 e- 0075 — Emergency call module and
tron Sportback communication unit
Software versions:
0538
2022 - 2025 All 0556
0664
0686
B716
0019 — Databus OBD Interface
Software versions:
0196
2025 All
0254
0258
0411
With one of the following PR Codes:
VTA
V7B
v7C
2024 — 2025 All 0075 - Emergency call module and
communication unit
Software versions:
0088
0100
0288
2022 — 2025 All 005F — Information electronics 1
Software versions:
3604
3608
3610
3616

3623
3667
3669
3812
3842
3844
3847
REVISION HISTORY
revision [ote [rumoee
2 Revised header (Added SW filters)
Revised Condition (Updated model table)
02/10/2026 | Initial publication
Customer states:
The customer complains that intermittently:
+ No data connection is available and a corresponding pop-up appears: "No data connection can be
established. Please check the network coverage".
x Note
No data connection could be established. Please
check the network coverage
noe
Figure 1. The pop up appears when no data connection is available.
and/or
+ The SOS LED is off.
and/or
+ The GPS position is incorrect.
and/or
+ Acracking noise can be heard in the front center loudspeaker (in the dash panel) as soon as the ignition is
switched on. The noise occurs twice in quick succession at regular intervals of approx. 6-7 seconds and is
perceived as a “tock tock” noise.
+ Sequence of cracking noises:
- Tock tock (in quick succession)

— Interval of 6-7 seconds
- Tock tock (in quick succession)
— Interval of 6-7 seconds
Workshop findings:
The customer complaint can be reproduced. It is also possible, however, that all functions may be available at the
time of the workshop visit.
Technical Background
Software issue.
Production Solution
With introduction of software in series production in Q2/2024.
Service
The implementation of the service measure is being planned.
Determine the vehicle’s current ID.S version using the Service Portlet application.
1. Open Service Portlet via GRP
2. Enter chassis number and click on “Search”
3. Open “Vehicle data” section
4. Read out ID.S version under “Software basis” basic data
Alternatively, if you do not have access to the Service Portlet:
Use ODIS to check the SW version of diagnostic address 005F:
+ SW version 3***: belongs to group A
+ SW version 4***: belongs to group B
The vehicles are divided into 2 groups with different measures:
Group A = software basis 3.*
A software update package is already available for some regions to remedy the issue. The instructions for the
update can be found in TSB 2079289, 00 Combined software update ID.S 3.8.2 for Audi Q4. Please perform this
update.
Group B = software basis >= 4.*
Refer to TSB 2080934, 94 Q4 (ID.S4/ID.S5) loses internet connection intermittently/SOS LED off/GPS pos.
incorrect/noises from center speaker for further instructions for this vehicle group.
Warranty

The following information applies to the software update as per TSB 2079289 Combined software update ID.S 3.8.2
for Audi Q4.

Claim Type: + Ifthe vehicle is outside of any warranty, this Technical Service Bulletin is

informational only.
Damage Code: 0039
Labor Operations: Software update flat rate incl. additional work and = |01510040 |60TU
adaptation drives
Charge battery 2706 8950 | See SRT with
associated operations

Claim Comment: As per TSB 2080935/2
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.

Please note the information on predecessors and items that are included and excluded in the repair operations as
well as any associated tasks.
Additional Information
All part and service references provided in this TSB (2080935) 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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