As of today my 98 ML radio has to be manually turned off, even when the key is not in the ignition. What would make this happen? How do i return it to proper operation? Thanks in advance.
HD

First of all, welcome to the club happydestiny. I see this is your first post.

Second, I dont know the answer to your question, but I would think its still covered under warranty. Diagnosing electrical items like that are hard (at least it is for me). It could be something in the radio unit, etc. Sorry I cant be of help.

That would be covered under warranty. Wouldn't try to mess with that at all.

My 300E and a Jaguar that I used to own would turn off a few seconds after the key was out of the ignition, but that was always a normal operation (big capacitors, I guess). My ML radio turns off immediately though, so anything else should be a radio problem.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car