Mercedes-Benz B19B513
Antenna 3 open load • B19B613 - Antenna 4 open load Cause Antenna amplifier Remedy Replace the antenna amplifier
Quick answer
For certain 2022–2024 Mercedes-Benz EQE and EQS vehicles in the US, DTC B19B513 indicates “Antenna 3 open load.” Mercedes-Benz service communication LI82.60-P-078155 identifies the antenna amplifier as the cause 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 B19B513 mean?
For certain 2022–2024 Mercedes-Benz EQE and EQS vehicles in the US, DTC B19B513 indicates “Antenna 3 open load.” Mercedes-Benz service communication LI82.60-P-078155 identifies the antenna amplifier as the cause 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 with DTC B19B513 stored as active and stored in the A26/17 MBUX multimedia system control unit. The communication describes B19B513 as “Antenna 3 open load.” It also covers B19B613, “Antenna 4 open load,” and may accompany B19B313 or B19B413 for antennas 1 and 2. The documented cause is the antenna amplifier; the documented remedy is replacement of the antenna amplifier.
3. What system is affected?
A26/17 MBUX multimedia system control unit and antenna/radio-reception system.
4. How serious is this code?
Unknown. Verified evidence does not assign a severity level.
5. Symptoms you may notice
- Radio reception interference.
- B19B513 may be displayed in the A26/17 MBUX multimedia system control unit as active and stored.
6. Possible causes
- Antenna amplifier, according to Mercedes-Benz 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 by an authorized Mercedes-Benz service provider or qualified automotive technician.
- Provide the technician with DTC B19B513 and reference Mercedes-Benz LI82.60-P-078155 / NHTSA Manufacturer Communication 11006699.
10. Step-by-step troubleshooting
- Verified evidence identifies the antenna amplifier as the cause and directs replacement of the antenna amplifier. Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Service is recommended to evaluate the documented antenna-amplifier condition and perform the remedy specified in Mercedes-Benz LI82.60-P-078155.
12. What the service center may check
- Check whether B19B513 is present as active and stored in the A26/17 MBUX multimedia system control unit.
- Confirm radio reception interference as described in LI82.60-P-078155.
- Address the antenna amplifier in accordance with the Mercedes-Benz communication.
13. Possible repair or resolution
- Replace the antenna amplifier, as specified by Mercedes-Benz 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, published through NHTSA as Manufacturer Communication 11006699 on 2024-08-06. It applies, based on supplied applicability evidence, to US-market 2022–2024 EQE and EQS vehicles.
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 B19B513 mean?
It means “Antenna 3 open load,” according to Mercedes-Benz LI82.60-P-078155.
What symptom is documented with B19B513?
The Mercedes-Benz communication documents radio reception interference.
What does Mercedes-Benz identify as the cause?
The communication identifies the antenna amplifier as the cause.
What repair does Mercedes-Benz 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 B19B513 a recall?
Not yet established by verified evidence.