Mercedes-Benz U013281
Communication with control unit "Suspension" has a malfunction. Incorrect data were received. C156F00 - The signal values of the level sensors are implausible. Cause Physical layer
Quick answer
For applicable 2024–2025 Mercedes-Benz EQE vehicles in the US, DTC U013281 is covered by Mercedes-Benz bulletin LI32.35-P-079752 when it occurs with C156F00. The bulletin concerns a suspension-control communication fault with implausible level-sensor signals and identifies the physical-layer wiring to level-control sensors B22/X as the cause addressed by the bulletin.
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1. What does U013281 mean?
For applicable 2024–2025 Mercedes-Benz EQE vehicles in the US, DTC U013281 is covered by Mercedes-Benz bulletin LI32.35-P-079752 when it occurs with C156F00. The bulletin concerns a suspension-control communication fault with implausible level-sensor signals and identifies the physical-layer wiring to level-control sensors B22/X as the cause addressed by the bulletin.
2. Technical explanation
The verified diagnostic description states: communication with the “Suspension” control unit has a malfunction, incorrect data were received, and C156F00 indicates implausible signal values from the level sensors. Mercedes-Benz bulletin LI32.35-P-079752 instructs technicians to check freeze-frame data in A108/2 and A108/3, specifically the “ZF_error_handler” section. The bulletin states that this information provides a starting point for diagnosis.
3. What system is affected?
Suspension control and level-control sensor signal/wiring circuit.
4. How serious is this code?
Unknown. The verified bulletin describes a “Shock” symbol and a “Do Not Drive Over 50MPH” message when this condition is present, but the supplied evidence does not establish a broader severity classification.
5. Symptoms you may notice
- Shock symbol in the instrument cluster.
- “Do Not Drive Over 50MPH” message.
- DTC U013281 in A108/2 or A108/3.
- DTC C156F00 in A108/2 or A108/3.
6. Possible causes
- Physical-layer wiring to the level-control sensors B22/X, as identified in Mercedes-Benz bulletin LI32.35-P-079752.
7. Can I still drive the vehicle?
Not yet established by verified evidence. If the instrument cluster displays “Do Not Drive Over 50MPH,” follow that displayed speed restriction.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Observe any instrument-cluster warning or speed restriction.
- Arrange diagnosis by a qualified Mercedes-Benz service facility.
- Do not attempt electrical wiring repairs without appropriate training and service information.
10. Step-by-step troubleshooting
- A qualified technician should check A108/2 and A108/3 for freeze-frame data.
- Mercedes-Benz bulletin LI32.35-P-079752 specifically directs review of the “ZF_error_handler” section of the freeze-frame data.
- Use the freeze-frame information as a starting point for diagnosis of the level-control sensor wiring concern.
11. When to contact service
Contact a qualified Mercedes-Benz service facility, 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 freeze-frame data.
- Review the “ZF_error_handler” section, as directed by LI32.35-P-079752.
- Diagnose the physical-layer wiring to level-control sensors B22/X based on the freeze-frame information.
13. Possible repair or resolution
- The verified bulletin identifies diagnosis of physical-layer wiring to level-control sensors B22/X. The supplied evidence does not establish a specific repair procedure or component replacement.
14. Affected vehicles
- Mercedes-Benz EQE · 2024–2025 · US
15. Related TSBs / service bulletins
- Mercedes-Benz LI32.35-P-079752, reported by NHTSA as Manufacturer Communication 11023050, published September 10, 2025.
- Mercedes-Benz LI32.35-P-079752, reported by NHTSA as Manufacturer Communication 11028814, published February 13, 2026.
- Applicability established by supplied evidence: 2024–2025 Mercedes-Benz EQE, US.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official NHTSA manufacturer-communication records: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11023050 and https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2025-2026.zip#nhtsa_id=11028814
19. Frequently asked questions
What does U013281 mean on an applicable Mercedes-Benz EQE?
The verified description states that communication with the Suspension control unit has malfunctioned and incorrect data were received. It is listed with C156F00, for implausible level-sensor signal values.
What warning may appear with this fault?
Mercedes-Benz bulletin LI32.35-P-079752 describes a Shock symbol and a “Do Not Drive Over 50MPH” message.
What does the bulletin identify as the cause addressed?
The bulletin identifies physical-layer wiring to level-control sensors B22/X.
Can I continue driving?
The overall driveability status is not established by verified evidence. If the vehicle displays “Do Not Drive Over 50MPH,” follow that restriction.
Is this covered by a recall?
Not yet established by verified evidence.