Initially I had this problem several months ago...

I just got a new battery via MB Roadside Assistance yesterday after getting 9 years out of the original :-0 For those interested, I live in the Northern VA/Wash DC area and my total cost was $174 and change.
After the battery change, when I shut off the car the radio stays on and I have to turn it off manually. Before the change, the radio would shut off when the ignition was shut off. What gives? How can I change it back so the radio will shut down automatically?

I was never able to figure out the problem so I just lived with it for a couple months. Went over a bump in the road due to some road work the other day and the radio went out. Can't even power it on now. No clue what happened?? Checked the fuses and they appeard to all be intact. Anyone got a clue?? 1999 ML430.

did you check the fuses on the passenger side below the dash?

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1967 250 S
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Didn't know there were any fuses there?? Nothing in the manual....
How do I access them?

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1999 ML 430

Because we really don't know since you fail to mention make and model. We assume it is a MB, but any service related conversation should start with make and model.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!

Sorry, I keep forgetting this forum does not let us put that info by the avatar. 1999 ML 430.

But I know they will let you put it in your signature

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!

did you pull the radio out and check the fuse that's on the radio? Also, I believe 99 MLs don't have fuse box on the passenger side kick panel.

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98 ML320 (gone but not forgotten)

QUOTE "did you pull the radio out and check the fuse that's on the radio? Also, I believe 99 MLs don't have fuse box on the passenger side kick panel"

do I need the special tool "key hooks??'' to pull the radio to access the fuse you are referencing?...or is this fuse in the fuse box under the hood? Once I pull the fuse will I need the special security code to turn the radio back on? What is the proper procedure for checking / changing this?

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1999 ML430
2001 Land Rover Discovery II
2001 Lexus IS300
1996 Convertible Cobra
1965 Olds 442 - Weiand 8-71

yes, a pair of radio keys are needed. you can buy them from dealer, cost less than 10 bucks a pair.

The fuse box under the hood is for the entire audio system. There is an additional fuse that is attached to the radio. Once you pull the radio out, you shall see it on the back side. Pull that fuse out and see if it was blown. sometimes it will reset that condition you were describing.

also need to have radio code handy. You can find that on the owner's manual (the one that references your audio/radio system).

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98 ML320 (gone but not forgotten)