Radio shuts off when you shut the car off
Thread Starter
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Radio shuts off when you shut the car off
I know, normal, right? The problem is, it doesn't come back on the next time you start the car. This behavior just started a few days ago. It's as if they pushed a software update over the weekend...
A simple push of the button puts it back on, to the previous settings.
Or is there a setting somewhere that inadvertently got changed?
A simple push of the button puts it back on, to the previous settings.
Or is there a setting somewhere that inadvertently got changed?
Thread Starter
MBWorld Fanatic!
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
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Joined: Nov 2021
Posts: 9
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2012 S350 & 2017 GLS450
Possibly your auxillary battery? Located in the back right corner compartment next to the spare tire. About $50 at a battery store, you don't have to get the MB brand. If you disconnect the 2 small wires on the battery tabs on aux battery, then take a test light to it after it's been disconnected for a while and see if it's holding a charge. Pretty sure I have an head unit issue, occassionally won't play any audio till I restart then will work. So much fun figuring this stuff out!!
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Member
Joined: Mar 2013
Posts: 80
Likes: 2
From: Albuquerque, NM
2016 GL350
Radio problem
I also suggest checking the auxiliary battery. But not only for voltage, but load test it as well.
These vehicles do all sorts of random things when either battery is defective.
These vehicles do all sorts of random things when either battery is defective.
Member
Joined: Mar 2013
Posts: 80
Likes: 2
From: Albuquerque, NM
2016 GL350
Auxiliary battery
I would take the auxiliary battery out and have it load tested. If you can't find someone to test it, just replace it.
These vehicles do whacky things when the batteries are marginal.
These vehicles do whacky things when the batteries are marginal.
Thread Starter
MBWorld Fanatic!
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
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From: In my garage
E55, GLS450, GL63, GLE350
When was the last time you replaced your aux battery? You should have no expectation of a reimbursement as the advice is free much like I don't expect anything if it does work. These cars do funny things with failing batteries.
Thread Starter
MBWorld Fanatic!
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
I'm not talking about reimbursement for advice solicited, just asking for better odds on a friendly bet. You're asking me to risk at least $60 to win one dollar. Only a fool would take that bet.
Last edited by John CC; Feb 3, 2024 at 07:56 PM.
Thread Starter
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Interesting. According to the EPC my X166 has the same tiny aux battery as my X204, not the larger one like an ATV or motorcycle might have.
WIS seems to say otherwise, but also refers to hybrid drive, which I definitely don't have.
WIS seems to say otherwise, but also refers to hybrid drive, which I definitely don't have.
MBWorld Fanatic!
Joined: Aug 2003
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From: In my garage
E55, GLS450, GL63, GLE350
Thread Starter
MBWorld Fanatic!
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From: New Hampsha
'17 GLS450, '14 GLK250, Grandpa's Roadster
Well, here we are, one year later. I don't drive this car that often, but it's in "turn the radio on every time" mode again. One other thing I noticed is, if I am sitting in the car waiting, engine off and radio on, I get about 5 minutes before I get the "Command will turn off in 3 minutes" warning. Regardless, it starts at -20*F no problem...
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Well, here we are, one year later. I don't drive this car that often, but it's in "turn the radio on every time" mode again. One other thing I noticed is, if I am sitting in the car waiting, engine off and radio on, I get about 5 minutes before I get the "Command will turn off in 3 minutes" warning. Regardless, it starts at -20*F no problem...
Pretty lengthy thread but talks about disconnecting ALT-LIN: https://mbworld.org/forums/e-class-w...d-timeout.html
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There is also this thread: https://mbworld.org/forums/s-class-w...wn-solved.html
