Mercedes S-Class W221 No radio and no sound...Plus more... Fault finding and repair.

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11 ай бұрын

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Hi
So, if you follow my channel for like, an eternity... lol... you have seen this car... was a long time ago, but is now back with new problems, and also to finish what the owner decided not to have done at the time...
I am starting the video by explaining an issue that for some weird reason I decided not to record, that said, was an interesting problem that came with a lot of work!
After that, the issue with the audio system...
The car had no sound, no radio stations plus some other issues... all because of 1 module...
Follow me on this video to find out what was the problem and how to resolve it.
Link to the old video on this car, be kind, was recorded quite long time ago... :-) :
• Mercedes S-Class W221 ...
Link to the next video on this car, engine and glow plugs light on:
• Mercedes S Class W221 ...
Hope you enjoy the video.
Any questions or comments put them below.
Like always, thank you for watching!

Пікірлер: 98

@justcarkits4532 10 ай бұрын

The joy of Mercedes sound systems. Have lots of experience with these and they are a pain. The MOST bus goes through head unit, phone, CD, TV tuner, tuner/ Amp, digital radio unit. Any failure will stop the sound. Most failures on the S-Class sound system are related to water in the boot. When valeters clean the wheel arch with a pressure washer the water sprays in through the side boot airvent (to allow boot to close) and ends up in the electronics. Some you can fix and some are so badly corroded and require replacement. Same issues also affect CL's... And others

@LMAutoRepairs 10 ай бұрын

☺️ 👍👍👍

@burningflare8977 5 ай бұрын

Do you mind if I ask some questions about the audio system?

@LMAutoRepairs 5 ай бұрын

Go ahead...👍👍

@STILLKINGSTON73 4 ай бұрын

Thank you for this post.. Same thing in going through right now.. I have a 2011 Mercedes benz s550 4matic water got in. I replaced the satellite module but I still got no sound . Car came with bang & olfusen system .so in the back left hand side is 2 amps and the satellite tuner can you help

@burningflare8977 4 ай бұрын

@STILLKINGSTON73 From all that I have seen, the no sound condition is typically caused from a dead amp. One thing you can try is by inserting a fiber loop into the voice control module section and seeing if that does the trick. If this doesn't work than most likely you have a dead amp.

@beluxauto5968 10 ай бұрын

You most have remembered something Luis. Anyway, you got it fixed and that's what counts. It brought back a lot of memories for me. Don't see these things anymore. Nice stuff Luis👍

@LMAutoRepairs 10 ай бұрын

☺️ 👍👍👍

@neilhampson2843 10 ай бұрын

Well done yet again. Why people buy an expensive car, but are not willing to spend the money to maintain it is beyond me. I noticed the car has come to you with the standard amount of fuel. 👍

@LMAutoRepairs 10 ай бұрын

☺️ The standard indeed! 😅 👍👍👍

@gimigimi1299 10 ай бұрын

For showing off, thats why." I want to look rich people does that." Narcistic personalities as usual

@neilmurphy845 10 ай бұрын

God help the person that buys that car I hope they're aware they're getting themselves into a project.

@LMAutoRepairs 10 ай бұрын

☺️ 😁

@sebastienbethge5324 10 ай бұрын

Nice cable on your T you have , it looks genuine 😮

@jonas-1901 9 ай бұрын

Respect .. Good job 👏 . I just got the same issue on my CL63 .. everything was fine, but after doing a color change of my car all sound goes down and no radio stations.. I'm weird about what would be

@BARNDOO 10 күн бұрын

Genius! . I would appreciate your help my audio goes off when i start the engine most times

@LMAutoRepairs 10 күн бұрын

And it comes back on again after the engine running? 👍👍👍

@dord1954 10 ай бұрын

I learned a lot in this video thanks 👍

@LMAutoRepairs 10 ай бұрын

☺️ Thank you for watching! 👍👍👍

@mikesabin8568 10 ай бұрын

You need a loop tool to loop out the modules on the fibre optic. If you loop out the bad module, radio comes to life

@LMAutoRepairs 10 ай бұрын

Yes... I have that loop... In this case was not necessary... 👍👍👍

@eurowerx4267 6 ай бұрын

A car that will leave with wedding bells!! You’re gonna be married to it.

@LMAutoRepairs 6 ай бұрын

😂😂😂

@MrByootox 9 ай бұрын

Great video Loius! But what an absolute dog of a car 🙈 Great tip about the MOST as well having the arrows👌 I had something similar in my E61 with the DAB module being removed previous to my ownership. Wish I'd seen this video a few years back 😂👍 I find the optical loop plugs are a good help for trying a quick fix or temp repair in these MOST systems. These electric seats are a nightmare when they stop working like that 🙄🙄

@LMAutoRepairs 9 ай бұрын

☺️ Thanks, for watching and for your comment! 👍👍👍

@abdyldili9090 7 ай бұрын

How can you convert a Japanese Comand to a Eu Comand? and for Mercedes S W221 350 2013 what kind of Eu Comand I needed. Thanks

@BARNDOO 10 күн бұрын

Sorry its a 2011 w221 S class I have subscribed

@user-ep5gs1dl6t 6 ай бұрын

Well done

@LMAutoRepairs 6 ай бұрын

Thanks! 👍👍👍

@bm-powered6944 4 ай бұрын

The radio in my GL 450 comes and goes. Sometimes it works for days with no problem. Then some days it goes in and out. The radio is still working but no sound is coming out. The phone can call and answer but I can’t hear anything because there is no sound. It happens randomly. Then it May suddenly have sound. So annoying.

@LMAutoRepairs 4 ай бұрын

Scan the car, and see if there is any faults that can point into any direction... 👍👍👍

@timmehlittleloud2251 10 ай бұрын

Excellent repair. Just about every motor like this I get in the owner is as tight as a ducks @rse. The quality of the supplied battery was a give away. One question, when the TV is coded out how does the MOST ring still work without a loop reflector being fitted to the TV module plug? Or did you take the fibre optic cables from the TV plug and plug them into the Bluetooth and Tuner cables to complete the loop so to speak.

@LMAutoRepairs 10 ай бұрын

The latest... I removed the small loop from the Bluetooth module and the TV tuner... Otherwise yes, would need a loop on that plug... 👍👍👍

@DallasAutoDiag 10 ай бұрын

Thanks for the video dude. What do you use for MB SI and wiring diagrams?

@LMAutoRepairs 10 ай бұрын

WIS... 👍👍👍

@DallasAutoDiag 10 ай бұрын

@@LMAutoRepairs what's that?

@LMAutoRepairs 10 ай бұрын

@@DallasAutoDiag Workshop Information System

@DallasAutoDiag 10 ай бұрын

@@LMAutoRepairs thank you sir

@LMAutoRepairs 10 ай бұрын

👍

@Vader74 10 ай бұрын

25:04 hard to be mechanic in GB on open ;)

@LMAutoRepairs 10 ай бұрын

Indeed! 🤪

@andyw8009 10 ай бұрын

Well done mate, as always! ;)

@LMAutoRepairs 10 ай бұрын

Thanks! 👍👍👍

@STILLKINGSTON73 4 ай бұрын

Hello i need help.. I have a 2011 mercedes benz s550 4matic.. Water got in my trunk and diagnosis show my satelite radio tuner was the problem.. I sent itboff to get repaired and when i plugged it back in i still getbno sound and that part was repair and seem to be working.. Im now only getting codes 94D5 and 94D2.. Can someone help me please.. Im not getting no sound at all..y navigarion still work.. My phone still connect but i cannot use the steering wheel buttons i also can connect bluetooth but still cant play anything

@LMAutoRepairs 4 ай бұрын

Check the sound processor... check connections, power and grounds... Check the most bus, make sure the loop is closed etc... 👍👍👍

@jackiemay9471 10 ай бұрын

good morning luis

@LMAutoRepairs 10 ай бұрын

👋 👍👍👍

@burningflare8977 5 ай бұрын

Thanks!

@LMAutoRepairs Ай бұрын

Really appreciated! 👍👍👍

@neilmurphy845 10 ай бұрын

What caused the rust to be on the CD changer

@LMAutoRepairs 10 ай бұрын

🤷‍♂️ Not a clue... Probably was the mice bathroom...😅 👍👍👍

@hiphopmusicallday100 5 ай бұрын

I plug my amp but have no light I don't know what to do plz help . The light was working but stop working?

@LMAutoRepairs 5 ай бұрын

What light? 👍👍👍

@hiphopmusicallday100 5 ай бұрын

@LMAutoRepairs red light don't show up at all . The radio was working for 10 minutes then stop working

@yakuzahi 3 ай бұрын

Hello. I have a friend with 08 S550. The Bluetooth stopped working for a while now. The dealer asked for $3000 to fix it. Last week I told him to buy a 30 pin dongle Bluetooth adapter that he connected to the 30 pin iPod cable in the glove box. This also didn't work. But now, after he played with the AUX feature, the FM, AM show nothing, And there's no sound like in your video. Do you think that it's going to be a good idea by changing the Bluetooth radio computer, and take the chance? Thank you.

@LMAutoRepairs 3 ай бұрын

Hi Difficult to tell without a few checks... As per the video, the tuner is also the amplifier module, so makes sense to loose sound and the tuner at the same time... You need to check if there is no blown fuses etc... before proceed any further... But there is a good possibility that the tuner/amplifier module has been messed up... 😬 👍👍👍

@STILLKINGSTON73 4 ай бұрын

Could you please tell me where the sound processor is located.. Never heard of a sound. Processor before..Thanks

@LMAutoRepairs 4 ай бұрын

Have you watched this video?

@STILLKINGSTON73 4 ай бұрын

Yes I did sir..many times.. But I don't see anything you refer to as the "sound processor.." In video you said you still get no sound.. My satellite tuner was already repaired .. I plugged it in and still no sound .. When sent my satellite tuner for repair I also sent my amp also . Mercedes repair shop said my amp was good.. The person before me who own this car, when buying brand new from the dealer they opted for the bang & olufsen sound system.. Not the Kardon.. So in my trunk on the left side is satellite tuner and 2 bang olufsen amp.. A big one with 1 big plug going to it and another with bang fiber optic loop.. In my car there is no voice command module on the left side or the right side of the trunk. In my car the voice control module is sitting under the dynamic seat pump .My voice control module has no fiber optic going to it so I cannot bypass it to test.. Thank you for replying toe and the community, but I don't know what else do.. Also when scanner if hooked up I get no codes relating to them..

@LMAutoRepairs 4 ай бұрын

@STILLKINGSTON73 🤔 29:30 Not sure which video you have been watching... Now, the sound processor or amp... same thing... The main thing is, if you can communicate with the amp, the most bus is ok, and the speakers are connected, then I would say you have a dead amp...

@kendyfrancis9152 9 ай бұрын

Please how do I solve mine,it shows no device detected

@LMAutoRepairs 9 ай бұрын

Have you done any diagnose work? 👍👍👍

@ibby_786 10 ай бұрын

Which software did you used.

@LMAutoRepairs 10 ай бұрын

Xentry/DAS... A relatively old version though...😋 👍👍👍

@Daniel-zm3jp 2 ай бұрын

Can anyone help me ive got mercedes benz s class s350 CDI 2010 and when i turn on radio or disk or even voice command dont work it says service unavailable or sound unavailable and the changer dont work either can someone please help ? Ive tried to remove the fuse box and put it back still dint work also tried reset all dint work as well

@LMAutoRepairs 2 ай бұрын

A lot of what you need to check, it is covered in this video... 👍👍👍

@Daniel-zm3jp 2 ай бұрын

@@LMAutoRepairs can it be the amp?

@LMAutoRepairs 2 ай бұрын

It can... but you need to test first..

@burningflare8977 5 ай бұрын

Hello, My issue as it stands: - All power + grounds are working going into all units - Red light inside the comand unit glows - Amp is new just as a precaution - When a scanner is plugged in, the comand and other audio related equipment do not show up. They show as blank as if theyre not equipped. - I have checked all fuses to be good with power going across any related to the comand audio system. - There is no display of anythont on the screen. It remains black but can still tilt. Any idea of where to start?

@LMAutoRepairs 5 ай бұрын

Hi The command should boot regardless of any of the other components related to to working or not... Have you pulled the command out of the center console? It looks like the command is not booting up...

@burningflare8977 5 ай бұрын

@@LMAutoRepairs by remove the comand, are you referencing the unit with the cd changer? I have removed it and checked it but did not see any corrosion within and I removed all the iPod related cables to narrow down the issue. I checked all the pins and all are good.

@LMAutoRepairs 5 ай бұрын

16:16 That's the command unit, the gateway of the entire audio and most network...

@burningflare8977 5 ай бұрын

@@LMAutoRepairs My current codes I pulled using a relative expensive scanner: OCP - No can message from Control Unit CGW (C0E1) UCP - No can message from Control Unit N93 (CGW) Message Failure "Air Conditioning" (9034) IC - No Can message from Control Unit Comand (C02F) Do you suggest getting a comand Unit to replace the one currently installed since there is no boot occurring? I am working towards getting a Xentry Compatible Scanner.

@LMAutoRepairs 5 ай бұрын

Right... it seems like there is an issue with the command, but you have other systems not communicating that might or might not be related... You need to understand first what is common to all of those units, and figure out why are they not communicating... Focus on the central gateway (CGW), as that can impact multiple systems... I wouldn't buy any parts just yet...

@nikolayatanasov6024 4 ай бұрын

I have the same problem with my mercedes. Where can I find you 😂. I have some electronic problems and need someone to look at it, someone that knows what he is doing