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Electrical fault in 2011 Mercedes C Class: sat nav failure and warning light illuminated

Hey guys, I'm investigating a problem with my 2011 Mercedes C Class petrol car. I'm struggling with a general electrical fault, the sat nav has stopped working and the warning light in the speedo is illuminated. Could this have something to do with the communication between the control units being faulty? Have any of you had experience of this and perhaps even a solution? I would be very interested to hear how you have had such problems rectified in the workshop. Thanks in advance for your help!

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22 comment(s)

Errors are not deleted Control unit is not recognized

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My Carly does not find any control device and does not delete any errors since today

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Quotation:
@Yunis wrote on
My Carly does not find any control device and does not delete any errors since today

Hello, our Carly support team is here for you. You can contact us at any time. Just click on this link and tell us what it's about. We will get back to you shortly https://support.mycarly.com/hc/de/requests/new?ticket_form_id=360000386979

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Hello With my A Class (A180 Diesel) I have the problem that I have to turn the ignition key several times until I can start it. I realize this when I hear a muffled noise from the fuel tank.

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The readout revealed EZS errors

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Quotation:
@M.Ayvaz wrote on
Hello With my A Class (A180 Diesel) I have the problem that I have to turn the ignition key several times until I can start it. I realize this when I hear a muffled noise from the fuel tank.

The EZS (Electronic Ignition Switch) errors could be the cause of your issue. The EZS system is responsible for managing the functions related to starting the car. It could be a faulty ignition switch or a problem with the key itself. Try using a different key if you have one. If the problem persists, it's best to have a professional mechanic inspect the EZS system. This is a critical issue as it can prevent your car from starting. Please keep us updated on your progress.

Hello, unfortunately I cannot access the engine control unit in my 2007 and 2011 W204. Despite the OBD light, no error is displayed. Kind regards

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Quotation:
@Lando wrote on
Hello, unfortunately I cannot access the engine control unit in my 2007 and 2011 W204. Despite the OBD light, no error is displayed. Kind regards

Hi Lando, if you're unable to access the engine control unit despite the OBD light being on, it could be an issue with the OBD scanner or the connection. Try using a different OBD scanner if you have one, or check the connection between the scanner and the OBD port. If the problem persists, it might be a more serious issue with the engine control unit itself, in which case it would be best to have a professional mechanic inspect it. Please keep us updated on your progress.

Hello I still have the problem as the carly obd, I can not delete the faults due to lack of connection with any switchboard, faults that before if I could delete and now I can delete but with another obd. Is it possible that my obd Carly stopped working? Thank you. Best regards

Quotation:
@Toni.dbad wrote on
Hello I still have the problem as the carly obd, I can not delete the faults due to lack of connection with any switchboard, faults that before if I could delete and now I can delete but with another obd. Is it possible that my obd Carly stopped working? Thank you. Best regards

Hi Toni.dbad, Our Carly Support Team is here to help. Please contact us by clicking on this link and we will get back to you shortly https://support.mycarly.com/hc/en-us/requests/new?ticket_form_id=360000444960

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