EQS EQS (V297) sedan

High Voltage battery fault

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Old Sep 19, 2023 | 07:19 AM
  #1  
babrams's Avatar
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EQS 580
High Voltage battery fault

I received the attached error message on my 2023 EQS580 Sedan which I believe is a fault in the high voltage battery. I can clear it by turning off the car and then back on. However, the fault returns after driving a short distance. When it happens, the car car feels like it went over a bump, the battery range suddenly drops to a third of what it was and the power is limited to 70%.
Has anyone else experienced this fault? What was the diagnosis and how was it repaired?
I was traveling back from Las Vegas, NV at the time and had to leave it at a dealer there. Still waiting to hear from them regarding the problem.


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Old Sep 1, 2025 | 03:33 PM
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Mercedes EQS580
Originally Posted by babrams
I received the attached error message on my 2023 EQS580 Sedan which I believe is a fault in the high voltage battery. I can clear it by turning off the car and then back on. However, the fault returns after driving a short distance. When it happens, the car car feels like it went over a bump, the battery range suddenly drops to a third of what it was and the power is limited to 70%.
Has anyone else experienced this fault? What was the diagnosis and how was it repaired?
I was traveling back from Las Vegas, NV at the time and had to leave it at a dealer there. Still waiting to hear from them regarding the problem.

Is there any update to this issue? Was experiencing a similar failure on my EQS SUV
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