Mercedes-Benz B19B313
Antenna 1 open load • B19B413 - Antenna 2 open load • B19B513 - Antenna 3 open load • B19B613 - Antenna 4 open load Cause Antenna amplifier Remedy Replace the antenna amplifier
Quick answer
For the listed 2022–2024 US Mercedes-Benz EQE and EQS vehicles, DTC B19B313 indicates “Antenna 1 open load.” Mercedes-Benz communication LI82.60-P-078155 identifies the antenna amplifier as the cause for this condition and specifies replacement of the antenna amplifier as the remedy.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does B19B313 mean?
For the listed 2022–2024 US Mercedes-Benz EQE and EQS vehicles, DTC B19B313 indicates “Antenna 1 open load.” Mercedes-Benz communication LI82.60-P-078155 identifies the antenna amplifier as the cause for this condition and specifies replacement of the antenna amplifier as the remedy.
2. Technical explanation
NHTSA Manufacturer Communication 11006699, Mercedes-Benz LI82.60-P-078155, addresses radio reception interference when these DTCs are active and stored in the A26/17 MBUX multimedia system control unit: B19B313 (Antenna 1 open load), B19B413 (Antenna 2 open load), B19B513 (Antenna 3 open load), and B19B613 (Antenna 4 open load). The communication identifies the antenna amplifier as the cause and directs replacement of the antenna amplifier.
3. What system is affected?
A26/17 MBUX multimedia system control unit / radio antenna system.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Radio reception interference.
- B19B313 may be displayed as active and stored in the A26/17 MBUX multimedia system control unit.
6. Possible causes
- Antenna amplifier, as identified by Mercedes-Benz communication LI82.60-P-078155.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis or repair with an authorized Mercedes-Benz service provider.
- Provide the technician with DTC B19B313 and Mercedes-Benz communication LI82.60-P-078155.
10. Step-by-step troubleshooting
- Verify whether B19B313 is active and stored in the A26/17 MBUX multimedia system control unit.
- For the listed communication condition, Mercedes-Benz identifies the antenna amplifier as the cause. Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Contact an authorized Mercedes-Benz service provider for diagnosis and repair. The supplied Mercedes-Benz communication specifies replacement of the antenna amplifier.
12. What the service center may check
- Check the A26/17 MBUX multimedia system control unit for active and stored B19B313.
- Assess the condition under Mercedes-Benz communication LI82.60-P-078155, which identifies the antenna amplifier as the cause.
13. Possible repair or resolution
- Replace the antenna amplifier, as specified in Mercedes-Benz communication LI82.60-P-078155.
14. Affected vehicles
- Mercedes-Benz EQE · 2022–2024 · US
- Mercedes-Benz EQS · 2022–2024 · US
15. Related TSBs / service bulletins
- Mercedes-Benz LI82.60-P-078155; NHTSA Manufacturer Communication 11006699; published August 6, 2024. It addresses radio reception interference and DTCs B19B313, B19B413, B19B513, and B19B613 in the A26/17 MBUX multimedia system control unit. The communication identifies the antenna amplifier as the cause and specifies replacement of the antenna amplifier.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official source: NHTSA Manufacturer Communication 11006699, Mercedes-Benz LI82.60-P-078155: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=11006699
19. Frequently asked questions
What does Mercedes-Benz code B19B313 mean?
It means “Antenna 1 open load.”
What symptom is addressed by the Mercedes-Benz communication?
The communication addresses radio reception interference.
What does Mercedes-Benz identify as the cause?
Mercedes-Benz communication LI82.60-P-078155 identifies the antenna amplifier as the cause.
What repair does the communication specify?
Replace the antenna amplifier.
Which vehicles are supported by the supplied applicability evidence?
US-market 2022–2024 Mercedes-Benz EQE and EQS vehicles.
Is the vehicle safe to drive or charge with B19B313?
Not yet established by verified evidence.