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Radio question and cup holders question

3338 Views 8 Replies 5 Participants Last post by  bomb10177
I posted this on the other Mercedes forum (as a general radio question) with no response.

As many of you may know, I have recently purchased my first 90s Mercedes (after all of my previous ones being 80s models) and this latest one has me with a question about the radio.

When I turn on the radio (original) in my '93 (W140), it will occasionally make a "MMMM, MMMM" sound, almost like a cell phone that is on vibrate will sound. Is this normal or is my radio going out/have an issue? I know my antenna is broken and will not go to the top, so dont know if its trying to tune in a station or what? It will tune in several stations and even on one that is getting good reception, it will occasionally make that sound.

I have an owners manual, but I havent looked through it yet. I looked in an online manual, but it dont even mention the radio.

Also, where are the cupholders in my '93 W140? I thought in the console, but I cant gain access to any?

Thanks in advance!
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just my guess on the radio with out being there, but it sounds like your antenna is the source of the noise. the antenna (when working properly) will go up when you start the car, and will go back down when the radio shuts off. are you only getting the noise when the radio is turned on or off???? or is it when you change stations? it could also slightly point to a bad amp. although the amps in the earlier models were better than that in later ones. How many miles are on it?

As far as cup holders a w140 has no idea what you talking about. the later models had a flip out cup holder in the center arm rest, but other than that there is one in the glove box that holds a pop can perfectly, but is absouletly useless for anything else. then there are the two in the back seat arm rest. but that's it. my prevous owner ghetto rigged a little cup holder into the center console of which ill post a picture of. as cheesy as it looks, it actually works awesome, i use it all the time.


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That 'little set up' looks factory because it IS factory! The middle years had cup holders under the armrest lid, but it had to be fully opened to access them; the later ones ('97-'99?) had a separate door in the armrest to access the cup holders.

Word to the ex of mine insisted on having her coffee on the way to work each morning and drove an E430. She was as ditzy and clumsy as she was hot (which is probably why she's an ex) and wouldn't listen to my warnings. One morning she spilled coffee on the transmission lever area...three days and $2000 later, the car was back on the road. If you won't listen to me...listen to the German engineers; they really do know better than you do!
you don't understand. were not talking about the the cup holders next to the phone in the picture I posted. were talking about the tan one down by the passenger seat. I will most reassure you, it is not factory in the slightest.
From your description, I would say it's your antenna attempting to go up and down. although it's somewhat weird that it will intermittently making noises. I believe your right in saying that it's just trying to pick up the radio frequency better.
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