2016-2026 Audi e-call LED Not Green TSB 2079652
This Technical Service Bulletin (TSB) 2079652/2 details diagnostic and repair procedures for 2016-2026 Audi vehicles where the emergency call LED in the roof module is not lit up green. It covers various scenarios, from eCall system status to communication errors, and outlines specific service…
Gilt auch für
- Audi A3
- 2022–2026
- Audi A4
- 2021–2025
- Audi A4 allroad
- 2021–2025
- Audi A5
- 2021–2024
- Audi A6
- 2021–2025
- Audi A6 allroad
- 2021–2026
- Audi A7
- 2021–2025
- Audi A7 e
- 2021–2022
- Audi A8 L e
- 2021
- Audi e-tron
- 2021, 2023
- Audi e-tron GT
- 2022–2026
- Audi e-tron Sportback
- 2021–2022
- Audi Q3
- 2021–2025
- Audi Q5
- 2021–2025
- Audi Q5 e
- 2021, 2023, 2024, 2025
- Audi Q7
- 2021–2026
- Audi Q8
- 2021–2026
- Audi R8
- 2021–2023
- Audi RS 3
- 2022–2026
- Audi RS 5
- 2021–2024
- Audi RS 6 Avant
- 2021–2026
- Audi RS 7
- 2021–2026
- Audi RS e-tron GT
- 2022–2026
- Audi RS Q8
- 2021–2026
- Audi S3
- 2022–2026
- Audi S4
- 2021–2025
- Audi S5
- 2021–2024
- Audi S6
- 2021–2025
- Audi S7
- 2021–2025
- Audi S8
- 2021–2026
- Audi SQ5
- 2021–2025
- Audi SQ7
- 2021–2026
- Audi SQ8
- 2021–2026
- Audi TT
- 2021–2023
- Audi TT RS
- 2021–2022
- Audi TTS
- 2021–2023
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Symptoms
Owners of 2016-2026 Audi vehicles equipped with e-call functionality may observe that the "emergency call LED in roof module not lit up in green". This indicates a potential issue with the vehicle's eCall system, which is designed to automatically contact emergency services. The LED should typically illuminate green to confirm the system is active and ready.
Revision History
This Technical Service Bulletin (TSB) 2079652/2 is a revision of a previously issued document. The initial publication, Revision 1, was released on October 14, 2025. This current Revision 2, released on December 11, 2025, includes updates to the Condition section, an added model table, revised warranty information, and updated service verbiage.
Important Warnings
Diagnosis and Trigger Conditions
To diagnose why the "Audi e-call LED not green" condition is present, technicians should first move the vehicle into an open-air location to ensure adequate GPS and mobile phone reception. After switching on the ignition, they must wait at least 30 seconds before evaluating the emergency call LED in the roof module based on its feedback pattern. The TSB outlines several scenarios:
eCall (emergency call) Status
| Fall | LED Feedback | Status |
|---|---|---|
| 1 | Red, Green, Red, Green | eCall ongoing |
| 2 | Red, Red, Red, Red | eCall disabled |
| 3 | Red, Green, Red, Green | Predelivery state |
| 4 | Red, Red, Red, Red | Error |
| 5 | Red, Green, Red, Green | eCall not available |
| 6 | Green, Green, Green, Green | eCall available |
| Timing | 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s, 0.5s |
Each
Frequently Asked Questions
- What does 'emergency call LED in roof module not lit up in green' mean?
- This message indicates a potential issue with your Audi's eCall system, which is designed to automatically contact emergency services in case of a crash. The LED should normally be green to show the system is available and functioning correctly.
- How will a technician diagnose the Audi e-call LED not green issue?
- As per TSB 2079652/2, technicians will assess the LED's behavior after ensuring good GPS and mobile reception. They will follow a diagnostic chart based on the LED's flashing pattern to determine if the eCall system is ongoing, disabled, in a pre-delivery state, or has an error. Further steps involve checking for IT errors, relevant TSBs, privacy settings, and performing module restarts.
- Is the repair for the Audi e-call LED not green covered under warranty?
- Warranty coverage for the Audi e-call LED not green issue depends on the vehicle's warranty status and the root cause of the problem. Technical Service Bulletin 2079652/2 outlines specific service numbers for invoicing, differentiating between issues caused by vehicle technology and external factors like network problems. If your vehicle is outside of warranty, the bulletin serves as informational guidance for repairs.
- What is the purpose of TSB 2079652/2?
- TSB 2079652/2 provides Audi technicians with a comprehensive guide to diagnose and resolve instances where the emergency call LED in the roof module of 2016-2026 Audi vehicles is not lit green. It details diagnostic scenarios, repair procedures like control unit restarts and backend registrations, and specific warranty claim instructions to ensure proper resolution of the eCall system fault.
What Audi e-tron owners report
Counted from the records in our database across 5 model years.
- 158
- Owner complaints
- 14
- Recalls
- 1,706
- Service bulletins
- 7
- Crashes reported
- 6
- Fires reported
- 3
- Injuries reported
The 2022 model year
31 complaints, the 3rd most of 5 model years on file. Owners reported 1 crash, 2 fires and 2 injuries for this year, which also has 6 recalls on file.
Electrical System, the system this article covers, accounts for 81 of 158 complaints (51%), including 17 for 2022.
Complaints by model year
| 2019 | 84 | |
|---|---|---|
| 2020 | 1 | |
| 2021 | 36 | |
| 2022 | 31 | |
| 2023 | 6 |
Most-reported systems
- Electrical System — 81
- Power Train — 24
- Engine — 23
- Fuel/Propulsion System — 18
- Service Brakes — 18
Latest recalls for the 2022 model year
- 26V240000 — Service Brakes, Hydraulic (Apr 2026)
- 25V900000 — Back Over Prevention (Dec 2025)
- 23V867000 — Electrical System (Dec 2023)
Recent owner reports about electrical system
While driving, the vehicle displayed three simultaneous warnings — “Drive system malfunction, safely stop vehicle,” “Electrical system malfunction, restart not possible, contact service,” and “All-wheel drive malfunction, limited stability” — and lost…
Read owner complaints →The vehicle is experiencing an intermittent but active 'Electrical system: malfunction!' safety alert on the dashboard and myAudi app, caused by an internal high-voltage battery cell circuit fault (Diagnostic Trouble Code P0DB400 / U04A300) and a failure in…
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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