radio stations not working?
05-06-2014, 06:38 PM
#1
Junior Member
Thread Starter
radio stations not working?
i have a 2000 s500 design and my radio stations are not working at all,cd players and tape works just fine…the stations read zero!no fm or am station are coming in…suggestions?
thanks guys.
thanks guys.
05-06-2014, 10:41 PM
#2
Possibly antenna amplifier under rear of headliner. . Don't have time tonight for fuse/schematic/year-model info, perhaps someone can chime in overnight, if not, I will get it in the AM.
05-07-2014, 12:34 AM
#3
Junior Member
Thread Starter
thank you very much for your help!i will wait until the morning to see what your response is.
05-07-2014, 09:52 AM
#4
On your model year the radio is pretty much an "all in one" unit unlike the '03+ models with a separate Audio Gateway in the trunk that is actually the radio tuner as well.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
Last edited by fxdeebee; 05-07-2014 at 10:02 AM.
05-07-2014, 11:25 AM
#5
Junior Member
Thread Starter
On your model year the radio is pretty much an "all in one" unit unlike the '03+ models with a separate Audio Gateway in the trunk that is actually the radio tuner as well.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
and,yes the key fob does unlock/lock doors…it's getting weak however.going to need a new battery.
05-09-2014, 08:48 PM
#6
Junior Member
Thread Starter
On your model year the radio is pretty much an "all in one" unit unlike the '03+ models with a separate Audio Gateway in the trunk that is actually the radio tuner as well.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
Going on that premise, the antenna amplifier feeds its AM/FM signals directly to the back of the radio. With the other audio sources performing you can probably eliminate a radio/audio amplifier problem.
A quick question.. does the key fob still lock/unlock the door properly ? If it does, than the antenna amplifier is getting power and you can skip the fuse check for that ( fuse 61, 10 amps, under back seat).
A quick over view of the W220 antenna system can be found here ..
http://www.benzworld.org/forums/w220...m-key-fob.html
Which leads back to your problem.. assuming the key fob is working and the amplifier is powered okay, you can check the right side of the antenna amplifier to ensure the 2 coax cables are firmly seated. You may be able to check that by GENTLY pulling down on the back edge of the headliner. A small mirror may be useful also, as well as being a bit of a contortionist. Next check is the antenna input on the back of the radio unit that it too is firmly seated.
If those check out than its probably safe to assume that your amplifier is toasted. Replacement of that requires head liner removal according to WIS.
i think i found the problem..the antenna on the roof of my car is broke in half
how much will that cost to replace and will my navigation even work?i don't have the nav cd but plan on getting one if you think my nav will still work….thanks man.
05-09-2014, 11:46 PM
#7
The sharkfin doesn't have anything to do with AM/FM. The Dollarship will want around 600 bucks to replace it. If your aren't using the internal cell phone ( which is also part of the sharkfin ) you can just remove it and go with an active GPS antenna with grey FACRA connector. Like this one ...
http://www.ebay.com/itm/like/171057715968?lpid=82
Mounted up under the dash atop the A/C plenum and plugged directly into back of your nav unit. I am not as familiar with the pre '03 models so perhaps someone who has done this can chime in with an exact location and cable routing.
As for the AM/FM.. I still believe its the antenna amplifier. Perhaps you can scare up someone locally with a STAR diagnostic machine. There are some voltage and continuity checks as well as signal level checks it can perform on the amplifier.
http://www.ebay.com/itm/like/171057715968?lpid=82
Mounted up under the dash atop the A/C plenum and plugged directly into back of your nav unit. I am not as familiar with the pre '03 models so perhaps someone who has done this can chime in with an exact location and cable routing.
As for the AM/FM.. I still believe its the antenna amplifier. Perhaps you can scare up someone locally with a STAR diagnostic machine. There are some voltage and continuity checks as well as signal level checks it can perform on the amplifier.
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05-09-2014, 11:54 PM
#8
Junior Member
Thread Starter
The sharkfin doesn't have anything to do with AM/FM. The Dollarship will want around 600 bucks to replace it. If your aren't using the internal cell phone ( which is also part of the sharkfin ) you can just remove it and go with an active GPS antenna with grey FACRA connector. Like this one ...
GPS Antenna Aerial Hrs GT5 Mercedes Alpine Pioner Clarion Panasonic 3M Magnetic | eBay
Mounted up under the dash atop the A/C plenum and plugged directly into back of your nav unit. I am not as familiar with the pre '03 models so perhaps someone who has done this can chime in with an exact location and cable routing.
As for the AM/FM.. I still believe its the antenna amplifier. Perhaps you can scare up someone locally with a STAR diagnostic machine. There are some voltage and continuity checks as well as signal level checks it can perform on the amplifier.
GPS Antenna Aerial Hrs GT5 Mercedes Alpine Pioner Clarion Panasonic 3M Magnetic | eBay
Mounted up under the dash atop the A/C plenum and plugged directly into back of your nav unit. I am not as familiar with the pre '03 models so perhaps someone who has done this can chime in with an exact location and cable routing.
As for the AM/FM.. I still believe its the antenna amplifier. Perhaps you can scare up someone locally with a STAR diagnostic machine. There are some voltage and continuity checks as well as signal level checks it can perform on the amplifier.
have a good night bud!
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Krazyleg (06-10-2021)
06-10-2021, 06:04 AM
#12
Junior Member
Me too. Hopefully your still active on this site. Any idea where I could get a coax cable, radio to the back? My cable is a little frayed with intermittent reception issues. Fought a long battle looking for the issue. Replaced the Combar, everything is working now but noticed the frayed cable and I don’t want to go the whole wireing harness route.
06-10-2021, 10:17 AM
#13
MBWorld Fanatic!
Radio stuff varies greatly from year to year and market to market. It is always a good idea to include year, model and market in any request for help.
06-11-2021, 12:23 PM
#14
Junior Member
Wow. How goofy am I? You mean everyone on this site isn’t driving a W220 S65 (2006)!?!?! Sincerely, thanks for reminding me. I’ve been on a few forums commenting on a few things and seeking wisdom of those more experienced than I, of which you are certainly one. I have installed a new combar, not cheap. The coax in question is located at the back “windshield”, under the head liner. Intermittent radio reception issues being generated. FOB functionality also impaired. Everything works smashingly until it doesn’t. I guess I’m wondering who would address coax like that? Is there a way to repair that with out replacing the whole harness? Shockingly Mercedes offers that solution to which I am not amendable. Any thoughts?
Regards,
Grateful Frank
06-11-2021, 11:21 PM
#15
MBWorld Fanatic!
"I have installed a new combar, not cheap. "
Is that the complex plastic bar under the rear of the headliner that contacts the antennas on the rear glass? I just had to replace that on my 2003 S500 a couple of months ago. My friend at the local pull-a-part decided that it was essentially a power antenna, so he charged me $15 for it - not too bad to install, worked a treat, so I was happy.
If I remember correctly, the coax assemblies just plug into the bar - no screw-on connectors. It sounds as if you have seen visible fraying of the cable - weird! I wonder what caused the fraying.
I usually try to pull some of the wire harness free and keep a few inches of wire (coax in this case) and the connector. (Scotty says that they almost never sell a wire harness.) I honestly don't remember whether or not I did that with the antenna bar. I'll try to check tomorrow to see if I have anything.
Where is the fraying? At the connector? Inches away? A foot away? How much replacement cable do you need? I would expect that you should be able to buy one or two miniature connector sets (both male and female) to splice in a replacement section.
Any possibility of a photo?
Is that the complex plastic bar under the rear of the headliner that contacts the antennas on the rear glass? I just had to replace that on my 2003 S500 a couple of months ago. My friend at the local pull-a-part decided that it was essentially a power antenna, so he charged me $15 for it - not too bad to install, worked a treat, so I was happy.
If I remember correctly, the coax assemblies just plug into the bar - no screw-on connectors. It sounds as if you have seen visible fraying of the cable - weird! I wonder what caused the fraying.
I usually try to pull some of the wire harness free and keep a few inches of wire (coax in this case) and the connector. (Scotty says that they almost never sell a wire harness.) I honestly don't remember whether or not I did that with the antenna bar. I'll try to check tomorrow to see if I have anything.
Where is the fraying? At the connector? Inches away? A foot away? How much replacement cable do you need? I would expect that you should be able to buy one or two miniature connector sets (both male and female) to splice in a replacement section.
Any possibility of a photo?
06-12-2021, 12:17 AM
#16
Junior Member
"I have installed a new combar, not cheap. "
Is that the complex plastic bar under the rear of the headliner that contacts the antennas on the rear glass? I just had to replace that on my 2003 S500 a couple of months ago. My friend at the local pull-a-part decided that it was essentially a power antenna, so he charged me $15 for it - not too bad to install, worked a treat, so I was happy.
If I remember correctly, the coax assemblies just plug into the bar - no screw-on connectors. It sounds as if you have seen visible fraying of the cable - weird! I wonder what caused the fraying.
I usually try to pull some of the wire harness free and keep a few inches of wire (coax in this case) and the connector. (Scotty says that they almost never sell a wire harness.) I honestly don't remember whether or not I did that with the antenna bar. I'll try to check tomorrow to see if I have anything.
Where is the fraying? At the connector? Inches away? A foot away? How much replacement cable do you need? I would expect that you should be able to buy one or two miniature connector sets (both male and female) to splice in a replacement section.
Any possibility of a photo?
Is that the complex plastic bar under the rear of the headliner that contacts the antennas on the rear glass? I just had to replace that on my 2003 S500 a couple of months ago. My friend at the local pull-a-part decided that it was essentially a power antenna, so he charged me $15 for it - not too bad to install, worked a treat, so I was happy.
If I remember correctly, the coax assemblies just plug into the bar - no screw-on connectors. It sounds as if you have seen visible fraying of the cable - weird! I wonder what caused the fraying.
I usually try to pull some of the wire harness free and keep a few inches of wire (coax in this case) and the connector. (Scotty says that they almost never sell a wire harness.) I honestly don't remember whether or not I did that with the antenna bar. I'll try to check tomorrow to see if I have anything.
Where is the fraying? At the connector? Inches away? A foot away? How much replacement cable do you need? I would expect that you should be able to buy one or two miniature connector sets (both male and female) to splice in a replacement section.
Any possibility of a photo?
thank you.
