fabiandrache14
Citan electric parking brake issue
Summary of the thread
A 2023 Mercedes Citan experienced an electronic parking brake malfunction, with a dashboard warning light and an error in the memory. The issue was suspected to be a defect in the brake caliper's electric motor, though a faulty brake sensor was also considered. Diagnostics suggested the electric motor as the likely cause, and it was recommended to check wiring and connections before replacement. Ultimately, a workshop confirmed the electric motor defect, replaced it, and resolved the issue, clearing the error code and extinguishing the warning light.
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4 comment(s)
fabiandrache14 (community.author)
Regarding the diagnostic codes, my expertise in deciphering them is limited Is there a particular code I should be looking for that would definitively implicate the electric motor, as opposed to a more peripheral issue such as a brake sensor malfunction? Could a simple system glitch potentially trigger such a cascade of errors, or is a hardware failure the more likely culprit? I am trying to understand the scope of this electronic brake issue before proceeding
simonsilber59
Alright, well, without the specific code, it's tough to say exactly what's going on But generally, if it's a motor issue, you might see codes related to circuit malfunction, low voltage, or the motor being stuck A sensor problem could show codes related to implausible signal or open circuit Honestly, though, electronic parking brake issues can be tricky Given the symptoms and the initial diagnosis, it's probably best to have a workshop take a closer look They'll have the right equipment to pinpoint the problem and confirm whether it's the motor or something else
fabiandrache14 (community.author)
I extend my sincere gratitude for your invaluable insights and cautious advice Based on your assessment, I shall defer to the expertise of a qualified workshop for a comprehensive brake diagnostics evaluation Following their intervention, the defective electric motor in the brake calliper was indeed identified and subsequently replaced, resolving the parking brake malfunction The error code has been cleared, and the warning light is no longer illuminated Thank you again for your assistance
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MERCEDES
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CITAN
simonsilber59
Sounds like a bummer with your Citan's parking brake If the diagnostics are pointing to the electric motor in the caliper, that's usually a pretty solid lead A brake sensor issue could theoretically cause problems, but usually you'd see more specific sensor-related error codes Did the diagnostics give you any specific codes? If it's the motor, that 505€ price tag might be about right, considering parts and labor Still, it might be worth double-checking the wiring and connections to the caliper before you commit to replacing the whole thing Just a thought!