Audi MMI Diagnosis & Repair (Fiber Optic Testing) | DIY
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- เผยแพร่เมื่อ 25 ส.ค. 2024
- Fiber Optic Lollipop Tester - amzn.to/3IqRaYz
Hey guys, today's video is some old footage from last year that I put together. In this episode I show how to test the MMI system and find the problem. 99% of the time, it is due to a receiver in the back of the car that is not completing the fiber optic loop. When there is a break in this loop, it will shut the whole system down causing the screen to turn off. This was a very cheap repair!
To find the cause of the issue, order the fiber optic lollipop connector and then disconnect the fiber optic connector on the back of each receiver. Once you find the problem, the screen will power on. You can leave the lollipop installed for temporary fix while waiting for your used part ordered from Ebay. Your screen will remain powered on once the fiber optic loop is complete.
Here is the link to the Fiber Optic Lollipop Tester - amzn.to/3IqRaYz
eManual Repair Manuals for Any Vehicle - shrsl.com/43l4o
Please feel free to ask any questions in the comment section, always happy to help!
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Thanks for watching!
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#AudiMMI #MMI #AudiA6 #AudiA6C6 #Audi #AudiProblems #AudiS6
Fiber Optic Lollipop Tester - amzn.to/3menBva
eManual Repair Manuals for Any Vehicle - shrsl.com/43l4o
audi a3 have inbuilt amp so lollopop tester why need
Even if it's built in, the fiber optic loop needs to be tested to confirm that it's actually receiving signal. If there is a break anywhere in the fiber optics system then it won't work. The tester completes the loop, bypassing the amp (or other modules) to confirm its good
@@Mechani_Cole can i use amp in fiber optical externa amp
Good question
@@Mechani_Cole if possible my mib have no sound i chanhe in built amp ic but no sound
Thanks worked great on my A4 B8 now I know what to replace 👍
Nice! Thanks for the comment, hope it goes smoothly🫡
Literally just ordered my piece! Thank you for the link as well. One day my battery died and all of a sudden I started dealing with this issue. And just like you the mechanics are talking about $2000. But I just couldn’t understand why it just stopped working because my battery died and had to jump my car. I didn’t spill a drink on the hardware or anything major. Just doesn’t add up, so hopefully it fixes the issue somewhere with maybe one bad part that isn’t too much to fix.
Hope you get it fixed bro🫡
@@Mechani_Cole bro!!!!!!!!!!!!!!!!!!! It worked!!!! My Sirius fm box I believe it is, is bad!!! I didn’t even have to detach anything. Just reached around and unplugged it!!!!!! Man I’m beyond elated right now!!!!! God is good hahahahahahhaha
@andre Lowe Jr let's go!!! That's so awesome to hear👏🏼👏🏼
The exact same thing happened to me! Been rolling around with no MMI for a few years now lol I’ll get to it eventually 😅
Hope you get it fixed soon🤙🏼
Mine is turning on for maybe 15 seconds and then shutting off. When it turns on it has sound and stuff but then it turns right back off but every once in awhile it will stay on until i turn the car off again.
Likely a bad unit in the rear
Same shit, and it started after -16c in night
Thank you, bro! Same problem.
I hope this helps me. Thanks for the upload.
Hope it does! Keep us posted if it fixes it!
Any updates? Wonder if you fixed it🤔
I haven't fixed it yet, I just got the loop, question, do I need to disconnect the battery before unplugging any off the audio components? That kind of held me up.
@@JCrushtv no. You actually need it on so you can test with power. Meaning, once you insert the plug into the wire, turn on accessories and see if anything has changed after each module.
Hi i have problem on my a6 c6 4f the mmi was not working like for 5-6 months a then we able to fix it but now when turning it on it works just has some lines on screen like it turn on but you cant see nothing it just keep showing horizontal/vertical lines all over the screen
Interesting, have you had it ever show the words/options correctly on screen? Wonder if you have a bad screen or a bad connection somewhere
@@Mechani_Cole No i just see colors like orange and the green menu nothing more but it can be bad connetion idk
please sir i have issue with my audi a6 quattro 2005 my radio keep going in and out also the cd player
is it amplifier issue or wiring
issues and what should i do ?
it stopping for like 3 seconds and continuing work .. but some times when it's cold the radio and cd don't work
i'm asking you because i'm about to change the cd with bluetooth 2g mmi adapter so please tell me what can i do to stop the cutting before i get the adapter???
Mine does the same exact thing and just ordered that device u have. How does it work?
It works by completing the fiber optic loop and providing a full connection
thank you for you time and shared your videos, I have a problem with the keyless for my audi q7 2014 you have any idea what is tha problem? tank you for you help
Have you changed the battery in the key fob first?
No I will order lollipop like you suggest I have another problem today start up put in gear goes into drive with jolt and rev same 30 seconds and it’s ok but then driving the display on speedo goes from d and6 to showing prds all in orange at same time if stop turn off and restart it shows as normal but then changes again to showing prds great videos and help thanks
What year and model is your car?
@@Mechani_Cole 2007 Audi Q7 3.0 automatic
Hi Coleman, just purchased an audi q5 2012 and the MMI powers on, navigation works, you can hear the navigation voice, but the radio volume doesn't work, nor can I adjust the bass, balance, fader, treble etc. I've replaced the console control panel and everything remained the same. So thinking it's either the receiver or amp. I tried the loop on both (admittedly, not really know what I'm doing-learning on the fly). Any idea what I should do next? replace amp/receiver? thanks for help
This is actually a good question and I am having a similar intermittent issue with our 2014 Q5. Will post a video if I find a solution. Not 100% sure at the moment
Hey , what's up
Please master i have the same problem , but and the buttons tel navy,radio, volume not work , no lights ..
Where is the problem , please respond me . I am waiting, respect bro
Have you checked the fuses first?
Hey man my amp on an 09 S5 got damaged from water going through the trunk, I ordered a very similar replacement just a 2011 amp instead of a 2009, my local mechanic "who identified it being the amp which was the problem by using the same method as you) attempted to code it for me but says he needed a special type of system which he didn't have, I took it to audi dealership and they could also not code it because one of the modules but somehow didn't want to get further into it because I had originally paid an hour labor just for them to try to code it. Wondering if I should get the exact part number for amp or it could be something else? Really appreciate you helping with these mmi problems 🤦🏽♂️
I would recommend finding the exact part number and getting that instead. When I replaced mine I found the same part number on Ebay and it was plug and play with no coding needed
I have water in my 09 A4 wagon. mmi and a host of other things don't work.
The bypass didn't work on mine either :(
Hi,
Please can you help me with the tools you used to access that area/compartment of the navigation, amplifier and tuner section.
Should just be a torx socket holding a few bolts in
My MMI stopped working same way.. A week later still didn't work but suddently drained my battery over night to 8 or 9V. Car did not start of course and dash showed several errors of course because of low voltage, but MMI started normally at 9V. I am already charging and let's see if it will continue to drain, or will work. I am going to diagnose tomorrow after battery charged or replaced. Edit: Forgot ro menriom that the battery was half year old and never had any problems with it.
Hi. Ive currently got that same parasitic draw problem. Has been using power over night and has killed 1 battery and now I'm Charging the new battery every night to save it from going down to 5v .. on my Q7, the SD CARD and SIM slot thing is staying very warm and somehow is on when the car is off/asleep ..
please let me know if you find out what's drawing power from your car
@@adrianadrian4910 @adrianadrian4910 i currenly removed few fuses, around 5 pieces from front and back to stop mmi, amp, dvd... I charged the battery and there is no draw at the moment.. i am waiting for optical loop tool i ordered and i will try to test, but most important or more important than mmi is that there is no battery draw atm.
I also bought the mmi Bluetooth cord so hopefully that works
Best if luck!
I noticed there is a fiber optic cable laying there with a red light pulsing out of it. I don't see another module it could be connected to so this unused fiber optic plug with the red light pulsing that is just sitting there unused off the harness is causing a break and preventing the stereo MMI from turning on?
Not usually no. The red light you are seeing is the fiber optic signal. It appears red.
You can always try plugging it with the tester and see if that fixes it. The tester completes the loop, which needs to be a complete circuit.
🎶 ME MYSELF AND I THATS ALL I GOT IN THE END THATS WHAT I FOUND OUT! & IT AINT NO NEED TO CRY. I TOOK A VOW THAT FROM NOW ON IMMA BE MY OWN BEST FRIEND! 🎶
Lol I see you!! For those of you who didn’t catch that, it was from Beyoncé’s first solo album.
On another note, thanks for the video. Now I can tell my sister it wasn’t me who did that to her MMI. The relief!! 😂
That's too funny and so awesome! The most random music always playing in my head😅
Hopefully the video was helpful, thanks for watching😁
Hi. Hope you will reply. I had same problem but now, mmi is on, but there is no sound, no radjo stations and cd not loading. Sat nav is working. So, i tested all modules like you, but when i put fiber loop into cd changer system does not starting. So the problem will be in cd changer?
Did you plug it into the connector? Or into the cd changer module itself?
Hey bud great video. Having some intermittent issues with my screen not turning on, particularly in cold weather. Same thing buttons don't light up either. If it's intermittent, is it most likely still the tuner? Or is there a connection I can fit tighter or dry out if there's moisture?
Great question, and thanks for the comment!
First thing I would check for is moisture damage on/in any of the units. The MMI controller located near the gear shifter could also be bad. I replaced the circuit board pretty easy on mine first thinking that was the issue when it wasn't. But drinks get spilled there easily due to the cup holder being located right there next to it. So very much a possibility too!
Hello, I have a question. A friend spilled coffee on the buttons and now it doesn't work to control the buttons. What should I do?
Replace the circuit board under the buttons. It's pretty easy and not to expensive. Can find them on Ebay
@@Mechani_Cole good evening I would like to send you a video of what happens
I have a 2008 Audi 6
No need. It's pretty common on these A6s since the buttons are there. I've replaced a few of them
I got the same issue and found water from drain tubes coming in. Disconnected all amps and units in trunk of my Q5 but ALSO found a fuse blowing which seems like a short or ground issue, possibly from water damage to cables? Fuse will keep blowing and shows it is for the AMP. How can I fix?
That's a tough one, I would say possibly replacing all the modules and seeing if you can find a short in any of the wire harness
Hey hello I got a Audi A6 2008 when I start the car my mmi play well but some other times the screen goes off so I would like to know what was the cause of it, it’s been like that since I bought it, also those button where the gear don’t work too, the light still off on it
Probably best to start with replacing the circuit board for the buttons. It's pretty easy to do. After that, if still having issues, order the tester and test each module until you find the problem
Is there anyway to bypass the whole mmi system and just run aftermarket stuff? My screen will turn on randomly and i never have button control or sound. Ive already tried the loop and no fix.
I'm sure there is, but I would call a local stereo install place and see what their experience is and what they say🤙🏼
I changed the unit box but only sound coming from my right side speakers, could you have an idea what it could be?
Not sure myself, I have heard of this from other comments. But not sure what the solution was. Keep us posted if you figure it out!
You just fixed my new vehicle bro!!!! Fucking guru!!!!! Thanks man!!!!!
Ayyy! These are my favorite kind of comments and the whole reason I do this! Glad you got it solved🤟🏼
Hi there my q7 suv bose amplifier is damaged from the water now I got no music and the mmi sistem don't work. What can I do to music and let my mmi sistem work again. Please send me advise thank you
Hi George, good question! I had a similar issue, I recommend searching Ebay and finding a used good condition amplifier and then replace it. Thats what I had to do, cost me about $60 to replace it. But the dealer wanted $1800 to replace and fix it, so saved a fortune.
Hope this helps, keep us updated🤟🏼
@@Mechani_Cole there is any other step after changing the module with problems?i heard something about an component protection at the local dealer only?just changing the module and it should work?
All I did was have the module rebuilt, added new fluid and a new filter and it worked perfect for me. Its not a guaranteed fix, just what worked for my situation.
Thanks man 🫶🏼
Thanks for commenting🤙🏼
I have a 2008 a6 and took it to the dealership because there is no sound coming out at all from am or CD player it’s stuck on pause/mute and all they said was “no communication to sound system control module, recommend to replace (may need additional parts) what even is the sound system control module, is it the radio tuner?
Well, sir Glizzy, it's basically a bunch of mumbo jumbo that means they don't actually know and that it's going to costs thousands of your dollars to figure out.
You can try to find the same module on Ebay and replace it yourself. I replaced a the control board and all kinds of stuff before this video that didn't fix anything.
@@Mechani_Cole wow, that’s exactly what I was thinking lmao that’s their way of saying idk since they don’t wanna test any parts independently how you did to actually figure it out cause they might fix it on accident without me spending thousands lol
What module do you suggest me trying to replace? The music will sometimes come on randomly for a few mins, hours or days the longest it stayed on was a week then a popping noise is repeated a few times before completely going out. Do you think if I try n take it to another audio shop they can actually figure out the problem? Since I know dealerships are the worst for actually trying to help you
Does the receiver needs to be program to the vehicle? Or just plug-in and done?
Mine was just plug and done. But I made sure to order the exact same part number through Ebay. Try to make sure the numbers match for whatever module
I have problem with audi q7 2007 the screen not turning on. And i checked. The center console and some of the buttons are really hard to push
Bruh theres one screw on the bottom left thats placed in an awkward angle, im having a hard time reaching it lol what did you use to remove that screw?
Probably just a long screw driver or a flexible one. Don't remember 100% to be honest
Heloo man, i have audi a6 c6. I upgraded my front speakers, since than my battery gets drain overnight. I check fuses and mmi and i found out that my amp witch is factory amp is turned on when the car is off. Idk if it got something to do with speakers that i installed, im sure that i wired it correctly. Its been two months now i still didt fix than. Please if tou got any suggestions tell me ❤
Hey, were you ever able to figure this problem out?
I had this problem but unplugged from the box in the trunk plugged it back in now all buttons work and radio plays but am not getting any power to the screen so blank screen have you any ideas
Likely a break in the fiber optic loop somewhere
@@Mechani_Cole what would you suggest new multimedia head unit?
Im having issues with my mmi also its been a long time since I last heard my speakers month's
Ya, that was the main problem here. No radio or anything. Use the fiber optic tester in the link of the video and unplug and test each module until something turns on. This tool bypasses the fiber optic and makes a connection. Whatever module makes the difference when unplugged is the issue. For me, it was just the FM tuner which was $60 on Ebay. But best to test before just replacing them.
@@Mechani_Cole so I just need to order me a fiber optic tester loop then how can I get ahold of one of those do I have to order it also or can I buy it at a store somewhere I really miss my mmi/radio its tough not being able to listen to music in such a luxurious audi u know
@@germanrodriguez1005 yes. There is a link in the description of this video for Amazon with free shipping. You can't buy these local, and they are very very cheap.
Hey I have the exact same problem. MMI splash page comes on then goes black, and my dashboard lights flicker while the car almost stalls but my heater controls work, the car turns on but sometimes stalls when putting into gear. I’ve heard the ignition switch is connected to the MMI, Interior Lights, dashboard, etc. you think I should start with the ignition switch? Or run this test.
Good question. First step, test your battery for correct voltage. I have seen bad batteries cause this before. Next I would get the fiber optic tester and test each module in the trunk like in the video. If you get a drastic change when olugging the tester in, then whatever module you tested is likely bad. For me, it was my Am/FM reciever that was bad and caused the whole system to fail.
Hope that helps, best of luck!
I got it back on but now it’s no sound help??????
Did you replace something? Check fuses first
did you take the tail light out to get to the modules? i’m having a hard time unscrewing them
No, I just removed the panels on the inside to gain access. Was a pain
hello. you change the radio block. you didn't need him coded. is it with everyone and is it allowed to change them?
Hello, yes I was able to change thr FM/AM reciever without any coding. None of them should need to be coded✌🏽
@@Mechani_Cole Do n't be koded ?only need the same part number that on my block? I'm interested because I want to change the mmi block.. my a6 c6 problem is that mmi twitching music from time to time . Disappeared radio and creates a display, not inteled, Thought that it could but mmi block fault. What could you recommend to me??
many thanks, so the boxes to check with the fiber optic loop are Sirius, DVD/NAV, Tuner, and AMP? what about bluetooth?
Yes, anything that is involved in the fiber optic loop.
@@Mechani_Cole Thanks Cole...I cant seem to find a list. Besides the Five boxes I have listed above are there any more? Also, does the DVD / Nav slide out like the CD player that needs blades to release it? Thanks Hal
@hal coy what vehicle do you have? It's probably only those that you listed. And no, on mine I actually had to remove a large brace in the rear to get access to the plugs to test them
@@Mechani_Cole Its a 2007 Audi Q7.Ive found that the Sirius unit is hot and running all the time and is draining the battery down...but the optic loop didnt work but a thought I had it. Damn I'll get it.
What is that thin unit mounted vertically towards the tail light?
Thanks Cole
@@halcoy4373 Did you ever find out what module was not working then?
I bought the loop thing and took it to my mechanic and turns out my amp needs to be replaced as well as the whole set up bc it got wet :( but I was on eBay looking for the parts am I fine just by getting them off eBay ? I searched up audi 2009 a4 amp exc am I find just by. Doing that or would I need to match the old amps serial numbers to the new one ? I’m sorry I don’t know if
I’m making sense I’m new at these car things lol
Or am I just fine by buying them used off eBay ?
Buy them off Ebay, but try searching by serial number. The numbers need to match or be from the exact same model and interchangeable. Best to find the same part number. Doesn't matter if it's used. My used one lasted just fine for years
i was able to isolate my problem in being my amplifier, yes that is a shock! haha. anyway, do you know if the power supply must be connected to the amp if you are checking the loop? i took my amp apart and cleaned off all of the corrosion on the inside, and am ready to test and see if it works. However, the power connector is a real pain to plug in and unplug. Without plugging it in, just plugging the fiber optic loop in, will that make the connection??
Good question! I don't believe power needs to be hooked up. Main reason is all the fiber optic lollipop tester is for is to complete the fiber optic loop. When the amp or something fails, the fiber optic loop is broken somewhere causing the whole system not to operate. The loop by passes whatever module is dead by connecting the broken fiber optic link if that makes sense.
So if you unplug your amp, plug in the tester, and you see your radio and other things work, then you most likely need a new amp. Best place is ebay, hope that answered your question🤙🏼
Bro for mine there is no audi logo showing when switching on the car. MMI is actually comes directly the radio or something there is no audi logo showing while switching on
Not sure on that one. Maybe try a reset?
@@Mechani_Cole I tried to reset but reset option also not working
I have a similar problem, no screen at all, not even briefly. I have just tested the optical loop for the four components in the trunk. One by one, I replaced a component by a lollypop bypass, nothing changed. The CD changer in the glove compartment has its lights on, but I cannot make it do anything else except a long hold on the main button to turn the lights off. So, it may be the board itself, since no lights are there, or the screen (doubtful) since all the buttons are affected, or possibly the CD changer (not clear why the screen doesn't come up at all).
@@pensiveintrovert4318 do you have a solve it ?
How did you know that was the fix and not the control circuit board?
I already replaced the control board first because that's what I thought it was. Nothing changed.
So I tested each module and easily found a bad amplifier with the fiber optic loop.
Hi I have a problem with my mmi, the sound goes off & comes back on every 20-30 seconds. Also sometimes the whole mmi shuts down, was wondering if anybody else came across this issue. Thanks
I would test each module with the tetser and see if one if messing up more than others.
I have a same problem with my Audi. Now I need to find same radio tuner with Audi number 4F0 035 056 B (mine) or I can buy same tuner with different part number from car scrap yard?
Find the same part number if possible. Ebay is usually a good spot👍🏻
Cheers mate.
I’ve seen videos where the loop is used indefinitely. Will that work or do you have to replace the part?
That will work, but you won't be able to use what ever module you are by-passing. For me it was the FM receiver and it was cheap and easy to just replace it. But if its the cd player or something, it won't matter to much.
Thanks for watching!🤙🏼
My mmi system wont power on! HEEELLLPP! PLEASE! I rested it, the screen works fine! I've notice the sirus xm module was missing but it had a optic loop on it! Do the 2 other power wires need to be plugged in to the sirus xm module or do i just need to have the optic loop plugged in? Will it still complete the loop without the other 2 plugged up?
Some models weren't equipped with the XM module even though there is a spot for it. Plug the connector into the plug, not the module. Each time you switch plugs, check for a change
Yo bro where are u located I need u too fix mine plz
Las Vegas
would an issue with one of these be enough to cause a battery drain issue?
Not usually no. Since no power is going to the unit. Have you checked your alternator?
A bad amp did cause drain on mine. Pulling the fuses until fixed should eliminate that issue.
Thanks for sharing!
I had optical loops on both my amp and radio receiver as a temporary fix to have the MMI screen function, and it drained my battery. It seems like the MMI will continue to reboot while the car is off.
Good to know!
Didn't work for my B8 A4. Tried all 4 components :(
Have you checked the fuses as well? How about the control board under the buttons?
Hey bud...where's the tuner located on a 2009 audi q7
For a 2015 audi a4 what's a good scantool to diagnose the mmi I believe it's a 3g mmi
This little scanner was pretty useful and powerful - amzn.to/3K7gBz9
Although you may be left with no choice but to use a fiber optic lollipop tester and test each module yourself with this - amzn.to/3neOoxr
@@Mechani_Cole bro ty for the quick response xD imma order it now xD driving ain't the same w.o music blasting
@Mechani_Cole also that little dongle can connect to the audi mmi? Should I buy the more expensive 1 xD
I use the cheaper tester myself.
Hello,
Thank you for making the video.
Question.
I replaced the Amp circuit board to fix my MMI, & Radio.
However, sound only works on the left side of the car.
Know why?
Somehow just now seeing this, sorry about that. Were you able to fix this yet?
@@Mechani_Cole Nope..I bought a different circuit board and it happened again. Ha
So I returned it.
@@donzo3j stupid question, but did you check the settings and play with the equalizer?
Checked fuses as well?
@@Mechani_Cole Thanks for the responses..
All the fuses I checked seemed fine..
However I wasn't sure what' is the proper fuse linked to the Speakers 😭.
I did play with the Equalizers settings.
@@donzo3j I could be component protection, I have the same thing happening to mine. It’s the car pretty much telling you that the parts isn’t original to the car. Dealership wanted a bunch of money to program my amp to the car.
Hi, I don know if you can offer any help on this, but I have an issue on my 2012 A5, where the buttons dont work, as in your video, but everything else does i.e. buttons on steering wheel, radio, bluetooth, navigation. But the only way to control any of these is via the steering wheel or trying to use voice control (which is not very easy at all). I took it to Audi, firstly they said it was the unit where the buttons are and they replaced it. this didnt fix the issue and now they are saying its the module in the boot, like in yours. however, as you can imagine, Audi want lots of $$$$ for this. do you think replacing this module will fix my issue? even though everything is working?
Somehow just now seeing this comment. Good question, have you resolved this issue yet?
@@Mechani_Cole no, not yet. I went back to Audi as I recalled the service manager called the part in the boot the 5F unit and upon looking online, the 5F unit is the main mmi unit in the centre console. So I queried this with Audi and they very very sheepishly said I was correct. So I am now looking into changing the main unit but I have been told that I either need to get one with the exact part number or get a similar one but it would need to be coded by Audi. So I am a little stuck as I don’t really trust what Audi are telling me. They had changed the control module at a cost of over £1000 and they now want an additional £3500 for the main unit, which I kindly told them to get lost. Once I have managed to get this fixed I will update you all, or if anyone who sees this has had a similar issue and can offer any advise would be greatly appreciated
Can you tell me any tests to do everything disappeared from my screen mmi but it’s still alight and can turn it on and of but it shows nothing in display
Did you already test each module like in the video?
Run diagnostic and it’s says button stuck mmi
I did replace the button circuit board before I even tested the module. I thought it was that at first, but for me, replacing it did nothing. It may help you to change it though. Often times drinks or stuff spills right there on the buttons.
Where do I get the tuner and how to i test it and make sure it works with my vehicle. I heard I have to get it programmed to my vin number? Is this true? Can someone help me out please 😢😅
On Ebay, find the part number on your module, then type that into Ebay and see if one pops up. If you can find the same one, no coding needed. At least no coding needed when I swapped mine. It was an instant fix
Some on Ebay for $50 or less even🫡
Thanks man! I was able to fix the mmi and radio but I kept the loop in and the radio was working fine. (3 months) Recently, the mmi stopped working so I brought another loop and it turned back on but now I have no sound. I have multiple replacements for each part, but it seems like the loop is the only thing that works. What should I do? I also have replacement fuses!
What do you have the loop plugged into now?
@@Mechani_Cole I have one loop plugged into the main system, the plug that goes into the main system, and one that goes into the siriusxm(it worked with sound at first)
Should only be testing 1 at a time to confirm which one is bad in my opinion. All you're looking for a is a different result when you plug that connector in than what you have. If there is even the smallest break in the fiber optic loop, the whole system will not function
@@Mechani_Cole I mean the mmi is on and functions properly, but there isn’t any sound. Is that because I have a loop in the main system? When I plug it in there regularly it doesn’t turn on at all.
Good question. Something in the main isn't getting the connection it sounds like. Could be to the Amp possibly and that's why no sound. Hard to say without looking at it in person
Where is the product name and place of purchase?
Listed in the description of this video🤙🏼
What year what the Q7 in the video?
It's a 2007 Audi A6 Avant 3.2
I wish I could ft this man 😭
Did you ever get it fixed?
Hi, i have ordered the “lollipop”, waiting on delivery. But i am sorry, I’m missing the info about, haw do you know witch unit is bad. Do the system work/light up with the “lollipop”, when connected on bad unit or how?! Regards Miro
Once you connect the lollipop into the the cable, it by passes the module and will turn on your power once you find the bad one. All you are looking for is something to change or come on when you are switcing the plug around. Once it does, it isolates the issue to the exact module that needs to be replaced. Mine was the FM reciever
@@Mechani_Cole Thanks a lot I think I got it now👍👌🏼👍👌🏼just got a eBay message, that bypass cable will be arriving tomorrow.
@@Mechani_Cole hi again champ. Great to have people like you. I have now tested with llollypop and got lcd screen to turn on, and all the bottonns in the board. Radio and apllyfier was god with signal. But when I stuck lollipop in navi unit everything turned on. Bat unfortunately still no sound. Any ideas 💡🙏🏼
Have pictures of progress but can’t send den here.
Best regards Miro
Thanks for the update! Did you by chance check the fuses to make sure they were all good?
Also soubds strange, but my speakers did 't work at first either than all of a sudden they turned on. Its possible the bad nav unit is effecting the sound as well. Can you get your speakers to crackle or make any noise at all?
Sounds like you are getting closer at least😁
@@Mechani_Cole you are wery welcome 👍🙏🏼Fuses were checked before I did anything else. Got them out one by one, and also checked them with amp meter, there were all ok. But I could try again tomorrow, just to be sure. And no, no sound at all is getting out of the speakers!!
Just don’t get it. What the navi unit got to do with sound🤔🤔
But I hope you’re right that I’m getting closer 🤞🏼🤞🏼🤞🏼
So I have a 2005 Audi A6 and same thing happened the radio will turn in then back off and the control circuit lights don’t seem
to light up either what can be the cause or how should I fix this?
The fiber optic is probably broken somewhere. With the tester in the link, you can find the issue usually easily.
I got a fiber optic Its not the same as that one that you have but it’s a black one with a round circle idk if you seem that kind and I disconnected one of the amp cables and connected it to the optic and still nothing! But idk what other components to test which would you do?
@@jorgexmunoz6131 unplug each module one at a time and plug the tester in with the key in the ON position. Then watch the dash while testing each module to watch for changes.
It could also be the actual computer board where your buttons are located as well. Its common drinks or water spills on them and then shorts them out. I actually replaced that first because I thought it was the problem. Only to learn it wasn't, thats how I found about this method of testing. They can be found pretty cheap on Ebay if all the modules test good and the fuse is good.
@@Mechani_Cole do you have a link for the computer board for a 07 A6?
@@BadGuyGolf I can find one. But you won't know what part is bad until you test each one.
Where can i find cheap amplifier bro
On Ebay with your part number
@@Mechani_Cole thank you for reply. Can i change with another one because i didnt find with the same part number ?
No
@@Mechani_Cole i have this 8T0035223T serial nr and i want to change with this one. 8T0035223AE
My 09 audi s5 MMI display looks like a phone screen that's been cracked all buttons and everything work just the display is out....anyone know anything about that 🤔
Haven't heard of that one yet. Maybe the screen itself is bad?
Does this work for 2011 a4?
Yeah it should work for any system ran of fiber optic which is all Audi's
Ok but can anybody talk about where I can order a fm/am tuner? For “$60”??
On Ebay
My Audi A6 2008 radio stay on mute idk how to unmute it can the tester explain my problem
Have you tried messing with the settings? It could be a problem with the Amp as well. Does the screen turn on?
My screen come on and off but it stay on mute can the tester explain why ?
Have you tried messing with all the settings?
Audi Dealership told me I have a faulty radio unit and quoted me $1800 to replace it. Bought a new multimedia radio unit (the in-dash radio, not the one in the trunk) off eBay for $200 and the issue still wasn’t fixed. Do you think it’s possible when they said “new radio unit” they were talking about the one in the trunk?
2011 Audi A5^
Yes, most likely the unit in the trunk and not the unit in the front. Can find online too
@@Mechani_Cole Appreciate the response! Ordered the fiber optic loops, should arrive on Monday and see what happens.
I'm dealing with a similar problem on my wife's Q5, let me know what you end up finding if you don't mind🤙🏼
@@Mechani_Cole came in the mail today.. plugged into the same connector you showed in the video and it’s fixed. only issue i’m having is the volume seems to not work everything else is working
I’ve already done the whole procedure and he’s still doing the same thing to me you can tell me that something else can be audi q7 2007
Could be the mmi control board where the buttons are
@@Mechani_ColeI just changed it right now, I’ve already verified all the fuses, it’s still doing
Never fun. You are certain you bypassed each module with the loop and turned power on after to confirm?
@@Mechani_Cole I need to have the lollipop tester? my car has a black color connected I’m doing the test with that same or do I need another one?
You need to plug the lollipop tester into the end of each plug one by one. There is no other way to test fiber optics except with this loop in this case
I have an Audi Q7 2007 and my radio doesn’t even turn on at all . Not to long after I figured that out on the passenger side it water leaking into the floor . So I’m not sure what the hell is going on or what needs to be fixed . It seems everyone is having the issue with this mmi .
Yeah, very common problem. Mine was water damage as well. Using this tool in the video helps eliminate the each module until something changes.
Have you check your fuse first? There is a fuse for the radio/mmi, it could be blown
Wur is the fuse located??
Located on either side of the dash at the end. There is a panel that pops off where the fuses are located
Is there any way I can get music playing through the the mmi, besides fm bloothooth transmitter
What year/model do you have?
@@Mechani_Cole 06 avant
Bluetooth is your best bet for music on that model
@@Mechani_Cole I already have it, and it sounds horrible, because of the interference 😆😂
@@Mechani_Cole I think I'm going to just go with an aftermarket radio and just eliminate the MMI
Hey @mechincole how do you going about doing this for a Audi A7?
Similar process. Locate the modules in your A7 (Google super helpful here), then remove the bracket holding them in.
Remove the fiber optic connection on 1, plug in lolipop tester in link to the wire harness. Then turn the car on and see if any difference.
Repeat this process until something changes on each module. Once you find which plug makes a connection with tester, then remove and replace module.
You can also leave the tester in as a temporary solution.
Basically the fiber optic tester creates a complete loop in the fiber optic signal. When a module fails, the connection is broken/interruption. The connecter completes the circuit to by pass the module is all that makes sense.
Best of luck, thanks for watching🤙🏼
@@Mechani_Cole the thing is I did that and ended up taking out the cd unit and when I check the fiber line no red laser was coming out of it
@@yunggenna1483 hard to tell with out the tester. If you had the tester, and by pass the cd player, then you should get functions back minus being able to play cds.
Is your screen completely off like in the video?
@@Mechani_Cole yes it’s off, again you see the fiber optic line that goes to f CD player it has no light in it
@@yunggenna1483 have you checked fuses?
I can't remember if I saw a light on mine or not. I just tested each module plug with power on and then found the dead module.
Mine is all black don't come on at all
Experiencing the same in our Q5 right now. Trying to track the problem down. Have you checked all fuses?
Could I just order this fiber and keep it in without replacing anything else?
Yes, good question!
Everything worked once I plugged it in, however, I didn't have Am/Fm so I couldn't turn on the radio until this part was replaced.
Once I replaced this part, I got a Bluetooth receiver and can now play music through my phone in here.
If I just left the tester in, everything would work, but I wouldn't have any sound
@@Mechani_Cole how many modules plugs are there in the back?
I saw another guy with a video online that had a solid black tester, what’s the difference between the orange loop one you have and there’s?
@@BadGuyGolf about 4-5. Amplifier, AM/FM receiver, Navigation and 2 others if I remember correctly. At least the first 3 for sure.
If any one of them has a break in the fiber optic line, it will shut the whole system down.
The tester completes the fiber optic loop when plugged in therefore completing the loop and turning the system on once the bad module is by-passed.
@@BadGuyGolf most likely nothing. Either way the tester is going to complete the fiber optic loop.
Link in bio for the one I was using.
Dealership quoted $3500 to fix this. I fixed it for $60 on Ebay for the module and $15 for this tester.
Still works over 1 year later
Where are you from
Outer space. But I reside in Seattle Washington area
Where do I connect the loop again?
Unplug the connector from the back of the module, then insert loop into the end of the plug that you just removed. Then turn on to see if any changes. If it turns on or changes when plugged in, then that is your faulty module.
There is 4 or 5 modules;
- AM/FM Receiver
- Navigation
- CD Player
- Amplifier
Test each plug. The tool completes the fiber optic loop, if one of these modules is failed then it breaks the loop, therefore shutting power down.
Hope this helps🤙🏼
I have a 2008 Audi I just got and I ordere the loops should be here in a few days , would you be willing to hop on FaceTime when I get them and I’ll pay you for your time to help me fix this!? Pls lmk :) thanks
@@AlexanderMartinez-ey9nq ya its possible, contact me when you get the tool🤙🏼
@@Mechani_Cole It comes in tomorrow well that all I need or will I need that metal box tool that you got from Amazon.
@@AlexanderMartinez-ey9nq only tool needed should just be the fiber optic loop to test it
Audi a3 no sound in mmi
Check your amp
Bro!!!!!!!!
Audi must have been watching these videos and decided to hid the modules/boxes better cause in my 2014 audi i can't find shit. Nothing Nothing im the teunk!
Update: i tried EVERYTHING and just when I was about to give up a simple jumpstart solved my mmi problem! 😎
What kind of Audi do you have? Sometimes they are in different locations or located under or near the spare tire.
@@Mechani_Cole a6 c7
You singing a lil Beyonce there? Let TH-cam hear them pipes!
"Me, myself, and I, that's all I got in the end
That's what I found out"
Bruh! Oscar, you should get a reward for that one, thats too funny😭 I actually didn't even catch that👏🏼
Thanks for watching bro, much appreciated😁
@@Mechani_Cole "And it ain't no need to cry, I took a vow that from now on I'm gon' my own best friend"
No doubt! Keep making good content bruh! 🤙
Audi mmi is embaresment
Almost embarrassing as that spelling 😬😳
@@Mechani_Cole probably acceptable for person who speaks 4 languages…. Keep driving the car that has mmi that looks like a fkn calculator….
Took a drive in q7 2016 older model over all nice car but that thing in middle nearly made me throw up, check out cic and compare it to mmi…. Which was made in 2008 if i am not wrong…..
We can all take a joke, was just messing with you. I actually agree it's outdated. Plus they kept this terrible screen in until '11. But currently driving a Benz, and it looks like a calculator 🫡
@@Mechani_Cole i think 2018 onwards the cockpit looks cool tho…