How to Troubleshoot Sound System, Fiber Optic of Mercedes S550 2007 

Just Got Mines In The mail today and Already fount the problem 🕺🏾 my Sirius Satellite radio box is bad 🤦🏾‍♂️ I unhooked the wires like u did in the video hooked up the fiber optic loop started the car and there you have it I was getting sound 🔉 again 🕺🏾🕺🏾🕺🏾 Thank you so much👍🏾👍🏾

In case it helps anyone: I have a CL500 (C216) with the standard (non-logic 7) amp. Randomly, I got no audio from any of the speakers regardless of the source, but navigation still worked (without any sound). Also CDs wouldn't register, nor could I load dvds. All of the FM radio stations dissappeared from the tuner, and i couldn't even select AM. The only fault STAR showed was that the tuner needed reflashing, but after it was reflashed, the symptoms stayed the same... After a lot of swearing, sweat and tears, I was fairly certain it's the amp in the boot, but didn't want to buy one off ebay which may fail after a month. I eventually got a reconditioned amp (i had to give my old one back) from the Mercedes dealer for £340, with a two year warranty. i thought I'd share this incase anyone is in the same boat and really dosent want to get a second hand unit. Edit: I forgot to say I also had bought a fiber optic loop cable, but after bypassing each component in the boot in turn, it made no difference. This is because you can not bypass the amp, and it was the amp that was faulty

Great help...thanks

Is that small antenna splitter (part # 0143204X01) mandatory for everything to work?

Hello, Where do i get that LOOPER??? Where do i get that loop wire??? cant find it on the web

Very good video. I have a 08 S550. Screen works. Nav works. No radio stations show up. No Audio. After I bypass the Satellite radio and Voice and amplifier, is there also a radio tuner bypass I can check?

Have same problem you show. Will replacing amp solve issue

Hello, I changed both batteries in the car and fully charged, and then cut the car on and went to the back trunk area and noticed I had red fiber optic lighting, IN ALL 3, but then it would go away! I could hear the fan in the amp working, does that mean the app is good if the fan is on? Amazon sent me the wrong loopers so I couldn’t go that route at the moment, but I unplugged each device except the amp and I got sound, then it cut off again and on the screen showing please wait telephone, It kept rebooting and clicking noise with sound then eventually again no sound at all! Also if I go to the center console and click the on and off button a few times that would get my radio station to pop on but now no sound and no movement when turning the dial. Also when I did have sound and press the voice command button on the steering wheel, it will work. But when I have no sound at all of course it doesn’t. After messing with it everything’s completely silent, but I still get the radio station displayed on the screen, even the navigation still works, but just no sound, with the amp fan and rear light going. Please help we could be the problem do you think? I know this is a lot but thank you in advance.

Salam and thank you for the video , I have a s550 my radio keeps coming on & off , how do you suggest I fix it.

Can you please help me I have a 2006 s500 w221 The audio stopped working with the screen being blank I dont have a bypass loop, Can you advice me how to repair this or Do I replace the Amplifier?

Also how do u take the carpet out of the trunk to get to the amplifier

Can 2 items be bypassed at the same time with 2 loops? like can I bypass everything except the amplifier, and hear sound?

I think trouble codes D104 & D103 may be associated with this?

hi, my command displays "loss of metadata". The radio has no sound and it doesn't work, also the navigation doesn't work. Any idea?

hi I hafe the same problem with mi sound I like 2 order the loop but I am from Suriname. is it possible

Is this similar to trouble shooting a Mercedes E350 2010? Is the voice command and satellite module also in the trunk like this S class? I'm able to operate the command unit (CD, Radio, GPS) only issue is no sound is coming through, also won't let me control the volume with the steering wheel button or center knob. Is it possible my issue is just the voice command module needing to be looped? I also have the Harman Kardon system, not sure if that would change any of the layout.

Do you still repair the amp, and what is the price?

I already bought a few ones from dealership and it’s not that either or

I have s350 2007 the unit TV went on and off on do you know what's that problem please and no number in radio station no voice

Hello, Where do i get that LOOPER??? Where do i get that loop wire??? cant find it on the web Do you sell the looper wire cable that you're using as demonstration on your Video On 2007 Mercedes s550.

Hi . I am having s550 4matic 2009 from Japan and it says ( Bluetooth deactivated ) and i don't have phone cradle in the armrest only cable ! How to activate the Bluetooth plz ?

Hi I have a 08 s550 the sirius/satellite module has been replaced new from dealer but sirius xm radio still not loading just shows call to activate service so i did and it is still not opening on my menu for satellite xm radio navi am fm radio works please help

Hi can you please help me.my radio is working fine. video and CD loading butt it's saying audio video format unknown. I change couple of different CDs it's not reading. do you have any idea what's happening. thanks

Hi I have s550 2011 Joy stick does move navi work But no radio no FM no CD no bluetooth with no sound and device not available I'm in San Francisco Can I come to you?

Hi All I have a mercedes cl63 amg w216 2013 with no command sound . When checking the modules with a fibre optical loop cable, do I need to disconnect the battery. Thanks Tony

Hi , i have a CL63 AMG and everything works fine about 1-3mins then it turn attomaticly off and restart .. anyone can help me ?

Can you fix a Becker 7003 radio unit that got wet?

Hello, can you please show me the troubleshoot method for my 2012 C250 benz ? Its has all the functions working but and screen functions work good to. Even the mute button shows on & off too. The problem is that there is no saound at all. Can you help please ?

I followed the steps from this video, and I’m still not able to get any sound and my radio stations are still not showing up. Could it be another problem/issue?

Hi I have a 2010 s350 s class the radio doesn’t work and the cd changer works it’s showing the playlist but doesn’t play or any sound? You think I need to check the amps etc in boot and test each one ? Which one usually is it likely to be brother thanks

hi I'm having the same on my sclass w221 no sound or radio, sat works fine !! will the loop help me ?

In my case no radio channel , no sound at aux and mp3, navi and joystick works fine., cant control speaker setting and logic7 setting Problem happened while am washing the car I do not have fiberloop tool so what do u think

Hope so it will help me out coz in my display there is no numbers in radio my Car Is S 320 CDI 2008 model

If the car goes to sleep for a while, or if I disconnect the battery for a while. The radio and audio functions will work, but after turning the car off they do not work until I either disconnect the battery or let the car sleep for a certain amount of time. Is this the same thing?

were do I get the fiber optic cable thing for the car I need it asap plz help

Is the fiber optic loop for the s550 that’s a male fiber optic by bass loop

Where do you get the bypass loop?

I have a c class 2012 all the radio functions work except when I turn up and down the volume there is no sound from the speakers, I did a circuit check and it tells me that loudspeakers open, you have a video related to that case.

I have a 2011 s550 Mercedes. My radio didn't come on this morning. It says no data is available. Can you help me?

can the CL 550 use a different amp other than this Harman Kardon?

Hello I have the same car , everything is ok in it but it has low sound system, I changed the speakers but still the same . What do you think it’s problem ?

When I use the bypass loop, do I have to have the radio on?

Hi, I have a 2007 S350 all the command systems are working, problem is the the screen connects and show my blue tooth devise on screen,but won’t accept calls or give sound, any ideas??????

DTCd017 Ring Break Pos. 0 i have this problem with my C63 amg 2009 what should u do

I bought a most fiber optic female for w204 but it doesn't fit i also. Bought male and also. Doesnt fit amp fiber

My radio ,usb,aux,sat radio, voice Recognition, valumr nothing work what do u suggest

hi can u give MI more details how to order the loop and please

Where would my amplifier be on a cl550

Where do I find the bypass loop

i have a 2013 c250 and after disconecting the battery im getting no sound from the radio. sometimes it comes back and then goes back to no sound. what could this be? all audio fuses are good.

Hello. I have a problem with my s 550. when I turn on the audio, the sound goes first to the front left high-frequency speaker and then to the other, but this tweeter sounds loudest and crackles. You can't listen to music. There is a popping sound and any messages. I am asking for a diagnosis. Sorry for the spelling, I translate via Google.

Qstn is now the screen view navi audio ..options only no radio stations cd is working sound ok which part is fault

My cd changer won't cut on at all.Will the looper correct this??

My screen comes on for about 2 min everything works then cuts off and restarts.. 2008 s600 please help what could it be?

Salam and thank you for the video. Here is my problem: I have a 2005 S43o. Once in a while I get the message "System Unavailable". The Tele doesn't blink on fiber optic when I get this message. I loop the fiber optic and still nothing works. But the system starts to work on it own after driving about 20 miles or so. When the system is working, I get the blinking on the tele and on the fiber op. One time I looped the fiber ops on the tele and after a few miles of driving the system came back active but there was no sound. Any ideas? Thank you in advance for your help.

Where can I find the radio wiring harness for a CL550?

Can you bypass the CD changer?

Why does my cd player plays for bout 3min then stops then start then stops

Hello, 1 week ago i was driving and audio just shut down.. my musics on PCMCIA did not start and radio could not play sounds.. next 2 days audio was off too .... Tuner was blank same for AUX or PCMCIA.. Nav and Phone were working perfectly.. (but no sound..) the sound cameback after these two days.. for only 4 days.. and it did not work anymore.. the next day it works like 5 min and shutdown.. Today it wasnt working till tonight and for the 4 days after.. and this morning not working anymore.. where do you think it can came from? this is an optic fiber problem ? contact failure? It seems like it shuts down when there is rain... This is so weird that it works, then NOT, then WORKS.... and i can see fastly and easily when it gonna works or not.. in the top left of the screen i can see "TA" when it's working Thank's you

which was the problem in this case in the video???

Video distortion in my c220 Mercedes 2014

How do you build the by pass

How do I fix this on my Mercedes w221 s class I have same car and problem? Will loop fix it?

Where can i get that exact bypass loop i have ordered a couple of them but they dont fit

In my s500 it's shows device unavailable....plzzz help that what should I do

My 2011 s550 display shows no radio lines. My amp has the light on, still no sound. I bypass the amp and radio and still no sound. It say Device not available.

Hi, I have a 2007 GL450 and my radio/cd appear to be working fine based on the command. The issue I have is that there is no sound at all. I have checked the amplifier and have replaced it with no success. Any thoughts?

my cd player play for 2 mins and stop i press play and it start and do the same thing help

Where are u located

it was my voice system they say

My command is only responsive for 5 minutes then shuts down any suggestions.

this didn’t work

ola

Are you Guys professional

my navigation works but no sound don't no if the ipod works or not where is the fuse located for the amp in the s550

I found the loop on ebay but there not made like that one they not male it says male but they covered

hi I hafe the same problem with mi sound I like 2 order the loop but I am from Suriname. is it possible

Hi I have the same problem on my car it’s a Mercedes s65 2008, all work good but the radio station is static and no have sound. Please may I change amplifier? Or if I get loop bypass like inside vidéo it’s ok? If loop can resolve my problem where can I get it? Thx a lot.

hi I hafe the same problem with mi sound I like 2 order the loop but I am from Suriname. is it possible

hi I hafe the same problem with mi sound I like 2 order the loop but I am from Suriname. is it possible