Issue with Radio
Thread Starter
Newbie
Joined: Dec 2021
Posts: 2
Likes: 1
2001 Mercedes Benz S430
Issue with Radio
Hi there:
I just replaced my battery on my 2001 S430 last week at the Mercedes dealership I work at and I have had a very peculiar issue with my radio after replacing the battery. After replacing the battery, my radio will not tune. It comes up 00.0 on the dial and will not allow me to change AM/FM stations. Before replacing the battery, the radio worked perfectly normal and had preset stations. Now it won't even tune to a radio station. I am wondering if perhaps the dealership tech forgot to set the code for the radio and now I can't tune the radio. Is there a way to reset the radio again so I can enter the radio code? Any ideas of what I could do to make the radio work again?
Thanks:
Mike
I just replaced my battery on my 2001 S430 last week at the Mercedes dealership I work at and I have had a very peculiar issue with my radio after replacing the battery. After replacing the battery, my radio will not tune. It comes up 00.0 on the dial and will not allow me to change AM/FM stations. Before replacing the battery, the radio worked perfectly normal and had preset stations. Now it won't even tune to a radio station. I am wondering if perhaps the dealership tech forgot to set the code for the radio and now I can't tune the radio. Is there a way to reset the radio again so I can enter the radio code? Any ideas of what I could do to make the radio work again?
Thanks:
Mike
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,475
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
I have never seen anything that stated or implied that the factory radio in a W220 required a security code.
I have also never heard of anyone spiking a W220 radio by changing the battery, but I suppose that anything is possible.
There is an "unlisted" 10-Amp fuse on the back of the factory COMAND unit on all of my cars, but I have no idea what it protects.
I have also never heard of anyone spiking a W220 radio by changing the battery, but I suppose that anything is possible.
There is an "unlisted" 10-Amp fuse on the back of the factory COMAND unit on all of my cars, but I have no idea what it protects.
Junior Member
Joined: Jan 2022
Posts: 28
Likes: 5
2003 S5004matic (220)
I would be shocked if it did NOT have a code. I had a 2001 and 2002 SLK 320 and the head units failed repeated under warranty--and they all had a code card. I learned how to pop them out myself with a thin knife blade that mimicked M-B's "special" tool. Yours may WELL be in the manual pack, if you have one. BTW, the head unit in our '03 S500 (the only M-B we still have) failed so completely we had it replaced with an Alpine head unit. The head unit on our 2003 ML600 also failed as well. In fact, the head unit in every Mercedes failed sooner or later.
