Having problems with your 2007 Mercedes-Benz ML320 CDI ?

I went and changed my battery and now my radio is not working. When I tried to reset it, it asked for the five digit security code which I don't have. How can obtain a security code?

Posted / edited by AnonymousUser on : 27-05-2019

Answers :

Something similar happened to mine. The battery died and the audio controls no longer worked (on the steering wheel) and the radio stayed on when the car was turned off. I had to pull the fuse and reseat it and that seems to have fixed it. It wasn't loose or blown.
That is a factory rest problem. the dealer has a key code to rest it.
Repair Help & Product Troubleshooting for 2007 Mercedes-Benz ML320 CDI

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