Mercedes-Benz C156F00
The signal values of the level sensors are implausible. Cause Physical layer wiring to the level control sensors B22/X. Remedy Check A108/2 and A108/3 for freeze frame data section
Quick answer
For certain 2024–2025 Mercedes-Benz EQE vehicles in the US, DTC C156F00 means the level-sensor signal values are implausible. Mercedes-Benz communication LI32.35-P-079752 identifies physical-layer wiring to the B22/X level-control sensors as the stated cause and directs checking freeze-frame data in A108/2 and A108/3, including the "ZF_error_handler" section.
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1. What does C156F00 mean?
For certain 2024–2025 Mercedes-Benz EQE vehicles in the US, DTC C156F00 means the level-sensor signal values are implausible. Mercedes-Benz communication LI32.35-P-079752 identifies physical-layer wiring to the B22/X level-control sensors as the stated cause and directs checking freeze-frame data in A108/2 and A108/3, including the "ZF_error_handler" section.
2. Technical explanation
C156F00 is documented in Mercedes-Benz manufacturer communication LI32.35-P-079752 as: "The signal values of the level sensors are implausible." The communication associates this DTC with physical-layer wiring to the B22/X level-control sensors. It instructs technicians to review freeze-frame data in A108/2 and A108/3, specifically the "ZF_error_handler" section. The bulletin gives an example in which the freeze-frame text "SPC_FEHLER_VehLvl_Stat_HP_AMG_AR2_SNA_VehLvl_RR_V2_AMG" indicates that the right-rear location may be implicated.
3. What system is affected?
Level-control sensor wiring / suspension-related control-system diagnostics. The verified evidence does not establish a broader system name.
4. How serious is this code?
Unknown. The verified communication describes a complaint involving a shock symbol and a "Do Not Drive Over 50MPH" message when C156F00 and/or U013281 are present in A108/2 or A108/3.
5. Symptoms you may notice
- Shock symbol in the instrument cluster.
- "Do Not Drive Over 50MPH" message.
- C156F00 stored in A108/2 or A108/3.
- The communication also references U013281 in A108/2 or A108/3.
6. Possible causes
- Physical-layer wiring to the B22/X level-control sensors.
7. Can I still drive the vehicle?
Not yet established by verified evidence. However, the referenced manufacturer communication describes a "Do Not Drive Over 50MPH" message in the applicable complaint condition. Follow any active instrument-cluster warning and seek qualified service.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Observe and follow the vehicle's active instrument-cluster warnings, including any speed restriction message.
- Arrange diagnosis by a qualified Mercedes-Benz service provider.
- Do not attempt high-voltage repairs; no high-voltage repair procedure is established by the provided evidence.
10. Step-by-step troubleshooting
- A qualified technician should check A108/2 and A108/3 for freeze-frame data.
- Review the freeze-frame data section named "ZF_error_handler."
- Use the freeze-frame text as a starting point for identifying the implicated location; the bulletin example identifies a right-rear indication from "SPC_FEHLER_VehLvl_Stat_HP_AMG_AR2_SNA_VehLvl_RR_V2_AMG".
11. When to contact service
Contact a Mercedes-Benz service provider for diagnosis, particularly if the shock symbol or "Do Not Drive Over 50MPH" message is displayed.
12. What the service center may check
- Check A108/2 and A108/3 for stored fault information and freeze-frame data.
- Review the "ZF_error_handler" freeze-frame-data section.
- Diagnose physical-layer wiring to the B22/X level-control sensors as directed by LI32.35-P-079752.
13. Possible repair or resolution
- The verified communication directs diagnostic review of A108/2 and A108/3 freeze-frame data and identifies physical-layer wiring to B22/X level-control sensors as the stated cause. A specific final repair procedure is not established by the supplied evidence.
14. Affected vehicles
- Mercedes-Benz EQE · 2024–2025 · US
15. Related TSBs / service bulletins
- Mercedes-Benz LI32.35-P-079752, reported to NHTSA as Manufacturer Communication 11023050, published September 10, 2025.
- Mercedes-Benz LI32.35-P-079752, reported to NHTSA as Manufacturer Communication 11028814, published February 13, 2026.
- The communication covers a complaint involving the shock symbol, the "Do Not Drive Over 50MPH" message, and DTCs including C156F00 in A108/2 or A108/3.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified official source: NHTSA Manufacturer Communication LI32.35-P-079752 (communications 11023050 and 11028814), published by NHTSA from Mercedes-Benz manufacturer information. Applicability provided: 2024–2025 Mercedes-Benz EQE, US.
19. Frequently asked questions
What does C156F00 mean?
It means the level-sensor signal values are implausible, according to Mercedes-Benz communication LI32.35-P-079752.
What cause is identified for C156F00?
The communication identifies physical-layer wiring to the B22/X level-control sensors.
What should a technician check?
The communication directs checking A108/2 and A108/3 for freeze-frame data, including the "ZF_error_handler" section.
Can this code be associated with a speed warning?
Yes. The verified communication describes a complaint involving a shock symbol and a "Do Not Drive Over 50MPH" message with C156F00 and/or U013281 in A108/2 or A108/3.
Is charging affected?
Not yet established by verified evidence.