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Marty, Mercedes Technician
Category: Mercedes
Satisfied Customers: 53899
Experience:  Bosch Certified Master Tech. Over 35 years experience.
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My stereo system just went off, it came with it, 2005 sl500,

Customer Question

my stereo system just went off
JA: Is this an aftermarket stereo, or did it come with the car?
Customer: it came with it
JA: What is the model/year of your Mercedes?
Customer: 2005 sl500
JA: Are you fixing your SL500 yourself? What have you tried so far?
Customer: i tried removing the fuses
JA: Anything else you want the mechanic to know before I connect you?
Customer: i had it on for long time and star telling me to turn on the car or the system is going off,and i didn't
Submitted: 6 months ago.
Category: Mercedes
Expert:  Marty replied 6 months ago.

Hi, welcome to Just Answer. My name is***** the negative battery cable on the battery in the trunk for 30 minutes and it should reboot the radio.

Let me know if it works.

Expert:  Marty replied 6 months ago.

Hi, just checking in. Did you get the radio working with the reboot?

Customer: replied 6 months ago.
I did try disconnecting the rear battery in the still don't work, my car is a 2005 Mercedes SL 500 before It turn off it was warning me, it turned off by itself
Expert:  Marty replied 6 months ago.

Ok, if your charging system and battery is good you will need to get the car connected to the Mercedes factory tester to reset the COMAND unit and update the software. If that does not solve the issue you will probably need to replace the COMAND unit or send it away for repair. The software update often helps.

Customer: replied 6 months ago.
I'm sorry but the conversation it didn't help me at all I do not have the tool the one you mentioned to me so it's not wait for me to do anything about it
Expert:  Marty replied 5 months ago.

I understand, and I wish I could do more. Unfortunately this is one that needs to go to the Mercedes service center.