{"id":3160,"date":"2017-09-05T14:48:20","date_gmt":"2017-09-05T21:48:20","guid":{"rendered":"http:\/\/www.dognmonkey.com\/audi\/?p=3160"},"modified":"2024-09-18T13:16:31","modified_gmt":"2024-09-18T20:16:31","slug":"what-you-mustshould-know-about-audi-mmi","status":"publish","type":"post","link":"https:\/\/www.dognmonkey.com\/audi\/what-you-mustshould-know-about-audi-mmi.html","title":{"rendered":"What You Must\/Should Know About Audi MMI"},"content":{"rendered":"<p style=\"text-align: center;\"><em><a href=\"https:\/\/www.dognmonkey.com\/audi\/how-to-restore-sounds-from-mmi-2g-component-protection-cp.html\" target=\"_blank\" rel=\"noopener\"><button class=\"w3-button w3-green w3-round-xlarge\">Remove CP To Restore Sound on New Head Unit Installation<\/button><\/a><\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"z-MqT3kUmRA\"><\/div>&#8220;<\/p>\n<p style=\"text-align: center;\"><em><button class=\"w3-button w3-red w3-round-xlarge\">DO NOT touch the MMI software unless you know what you&#8217;re doing. If the MMI is not working, updating software WILL NOT fix the MMI&#8230; Many people broke the MMI by updating the software with the wrong procedure&#8230;<\/button><\/em><\/p>\n<p style=\"text-align: center;\"><em><button class=\"w3-button w3-blue w3-round-xlarge\"> If you&#8217;re missing the suspension menu, someone might turn it off in the hidden menu&#8230; Use VCDS or OBDEleven to turn on the hidden menu and enable the suspension to get it back<\/button><\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"vbQu5nVHxRY\"><\/div>&#8220;<\/p>\n<div class=\"igallery\">\n<p style=\"text-align: center;\"><em><a class=\"preview\" title=\"MMI Suspension Menu\" href=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-4054\" src=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension-200x112.jpg\" alt=\"MMI Suspension Menu\" width=\"200\" height=\"112\" srcset=\"https:\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension-200x112.jpg 200w, https:\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension-300x168.jpg 300w, https:\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension-100x56.jpg 100w, https:\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/mmi_suspension.jpg 336w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/a>\u00a0<\/em><\/p>\n<\/div>\n<p style=\"text-align: center;\"><em><button class=\"w3-button w3-red w3-round-xlarge\"> If your software version is below 1070, you must update to 3360 before jumping to 4610 &#8211; There are 3 CDs not 2CDs.<\/button><\/em><\/p>\n<p><em>If you own a newer Audi (2004+), you may have option called MMI (Multi Media Interface) which control all your media player and display on your dash 7&#8243; screen. Some are built-in the dash or flip up like the A8 D3. The MMI is actually a very simple system, but quite confusing for Dealers or Repair shop to troubleshoot when things failed and consumers will normally end up paying for the wrong diagnosis and good parts until the problem is finally fixed, i.e, they replaced the right one after many other trials and errors. It&#8217;s good to understand the system and sometimes you can fix or find the problem yourself and save money. It communicates with MOST (Media Oriented Systems Transport) optical bus.<\/em><\/p>\n<p style=\"text-align: center;\"><em><button class=\"w3-button w3-blue w3-round-xlarge\">MMI Software Versions Update<\/button><\/em><\/p>\n<p><em>Most dealers don&#8217;t offer software update for MMI 2G &#8211; The latest version is 4610. Don&#8217;t update software unless you need to add AMI because you will need<a href=\"\/\/www.dognmonkey.com\/audi\/obdeleven-vcds-alternative-for-android.html\" target=\"_blank\" rel=\"noopener noreferrer\"><button class=\"w3-button w3-blue w3-round-xlarge\">VCDS or OBDEleven<\/button><\/a> to get back the instrument cluster functions that&#8217;s lost in the upgrade. I have upgraded mine <a href=\"\/\/www.dognmonkey.com\/audi\/mmi-software-update-from-1190-to-3360.html\" target=\"_blank\" rel=\"noopener noreferrer\"><button class=\"w3-button w3-blue w3-round-xlarge\">from 1160 to 3360<\/button><\/a> and <a href=\"\/\/www.dognmonkey.com\/audi\/update-audi-mmi-3360-to-4610.html\" target=\"_blank\" rel=\"noopener noreferrer\"><button class=\"w3-button w3-green w3-round-xlarge\">from 3360 to 4610<\/button><\/a>. My 2008 Q7 still has the original 4140 which I&#8217;ve never updated. If it works, don&#8217;t fix it.<\/em><\/p>\n<div class=\"igallery\">\n<p style=\"text-align: center;\"><a title=\"Audi MMI MOST bus system\" href=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/z_MMI_system.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-3284\" src=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/z_MMI_system-200x112.jpg\" alt=\"Audi MMI MOST bus system\" width=\"200\" height=\"112\" \/><\/a>\u00a0 \u00a0 \u00a0<a title=\"Optical Bus Connector LED blinking\" href=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/optical_led.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-3172\" src=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/optical_led-200x112.jpg\" alt=\"Optical LED blinking\" width=\"200\" height=\"112\" \/><\/a><\/p>\n<p><em>Since the optical bus is connected in SERIES, first device out to then second device input and so on until it gets back to the first device input to complete a loop. Think of it as some Christmas lights string, one burned out, the whole string is OFF until you replace the correct bulb to complete the loop.<\/em><\/p>\n<p><em>So, one morning after a heavy rain over night and your car parked outside, the sunroof drains were clogged, the water entered the car, you turn on the MMI and the screen comes up with the MMI screen for a minute and goes black. You can hear the clicking in the rear of the back seat in the trunk, but nothing happens. Some devices on the MOST bus is malfunctioned (broken), the optical (red led) signal got stuck somewhere and didn&#8217;t get back to the head unit (first device) input. It could be one device or more. Before you get panic, you should check all the fuses, especially the one in the trunk, just above the battery, that&#8217;s the fuse for Radio, Amplifier, Navigation and TV tuner. If you&#8217;re lucky, the fuse is blown, replace it may fix the problem, but if it&#8217;s still intact, you need more troubleshooting to do.<\/em><\/p>\n<p style=\"text-align: center;\"><a title=\"60A_fuse for Radio, Navigation and TV tuner\" href=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/60A_fuse.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-thumbnail wp-image-3237\" src=\"\/\/www.dognmonkey.com\/audi\/wp-content\/uploads\/60A_fuse-200x112.jpg\" alt=\"60A_fuse for Radio Navigation\" width=\"200\" height=\"112\" \/><\/a><\/p>\n<\/div>\n<p><em>It&#8217;s a mandatory for Audi owners with MMI system to have is the optical bypass loop (female), at least one as spare in case the system is down. Audi dealers do have the originals, but it&#8217;s not necessary, any aftermarket female loop would do.<\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"JnrvH20SYmg\"><\/div><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"YmkurK7ITcM\"><\/div><\/p>\n<p><em>Most of Audi savvy people would normally rely on the VAGCOM or VCDS to troubleshoot the system, but they will end up replacing some good parts instead. VCDS or VAGCOM will report very confusing data because when one device failed, all devices will show up on VCDS as broken which doesn&#8217;t help us to find out which one is the culprit. I&#8217;ve created a video to show how falsely VCDS can report failures. The incompetent dealers or Indies will use the VCDS output to justify for their replacing good parts mistakes on customers expense.<\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"nt5k40hIb58\"><\/div><\/p>\n<p><em>Here are some of the common troubleshooting techniques that I&#8217;ve seen so far. Every time we push a button on the control panel, it will wake the MMI system and try to select the device connected to the button, when the MMI wakes up and check the MOST bus by sending signals to all devices and got stuck due to some devices not responding, it will shut itself, hence the MMI screen displayed for a few seconds then goes black. The device query restarts when any button is pushed. Only if the head unit is functioning.<\/em><\/p>\n<p><em>1. When you push any button on the control panel: NAV, CAR, SETUP, CD, AMFM&#8230; etc, the MMI screen comes up and then goes black, it normally indicates the Head Unit (most expensive part of the system) is working. If it doesn&#8217;t, then it may be dead or the control panel itself is broken.<\/em><\/p>\n<p><em>2. Sometimes, people spilled drinks over the control panel by mistakes, the control panel no longer works, but still, we can check to see which part of the control panel is bad by pushing one button at a time to see which button is bad. If the MMI welcome screen never shows up, the head unit is dead.<\/em><\/p>\n<p><em>3. It&#8217;s also known that if the device is faulty, there won&#8217;t be any LED signal passing through, so if we unplug the optical cable of one device and it&#8217;s not blinking when a button is pushed (MMI wakes) then we can assume the device before this is faulty, check the device loop picture to see components relative to the loop.<\/em><\/p>\n<p><em>4. If you have to replace the HU (head unit-4E0035729-4L0<\/em><em>), you do need to get CP (Component Protection) removed by a dealer or your sound won&#8217;t work or you can swap the old eeprom to the new one but you need electronic soldering skill.<\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"iM2xpuRm5ew\"><\/div><\/p>\n<p style=\"text-align: center;\"><em><button class=\"w3-button w3-red w3-round-xlarge\">If you spill drinks on the MMI control panel&#8230;<\/button><\/em><\/p>\n<p><em>Remove and clean the circuit board, it may work after or <button class=\"w3-button w3-green w3-round-xlarge\">buy a new 4E01919612 to replace<\/button>.<\/em><\/p>\n<p style=\"text-align: center;\"><div class=\"youtube-player\" data-id=\"nuSCafl2yYk\"><\/div><\/p>\n<p><em>This is my understanding of the MMI system, it&#8217;s only for references and not guaranteed 100% accurate, use it to troubleshoot at your own risk. If you see something that I missed, please comment below so I can add to help other Audi Enthusiasts.<\/em><br \/>\n<em>For your specific problems,<a href=\"https:\/\/www.audiworld.com\/forums\/a8-s8-d3-platform-discussion-60\/\" target=\"_blank\" rel=\"noopener noreferrer\"><button class=\"w3-button w3-blue w3-round-xlarge\">Audiworld<\/button><\/a> may be the best source to make queries.<\/em><\/p>\n<ul class=\"lcp_catlist\" id=\"lcp_instance_0\"><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>&#8220; &#8220; \u00a0 If you own a newer Audi (2004+), you may have option called MMI (Multi Media Interface) which control all your media player and display on your dash 7&#8243; screen. Some are built-in the dash or flip up like the A8 D3. The MMI is actually a very simple system, but quite confusing <a href=\"https:\/\/www.dognmonkey.com\/audi\/what-you-mustshould-know-about-audi-mmi.html\" class=\"more-link\">&#8230;<\/a><\/p>\n","protected":false},"author":2,"featured_media":4518,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[612,218,1111],"tags":[995,225,226,968,789,541,992,253,884,991,181,540,993,681,248,682,583,683,1051,994],"class_list":["post-3160","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ami-audi-music-interface","category-audi-mmi-multi-media-interface","category-mmi-3g","tag-30-pin","tag-4e0-035-729","tag-4e0-035-729-a","tag-968","tag-4l0-035-729-a","tag-android-phone","tag-can-bus","tag-can-bus-gateway","tag-green-menu","tag-head-unit","tag-hidden-menu","tag-iphone","tag-ipod","tag-mmi-multi-media-interface","tag-mmi-2g","tag-most-bus","tag-optical-bus","tag-optical-cables","tag-remove-cp","tag-smart-phone"],"views":50818,"_links":{"self":[{"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/posts\/3160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/comments?post=3160"}],"version-history":[{"count":3,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/posts\/3160\/revisions"}],"predecessor-version":[{"id":5469,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/posts\/3160\/revisions\/5469"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/media\/4518"}],"wp:attachment":[{"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/media?parent=3160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/categories?post=3160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dognmonkey.com\/audi\/wp-json\/wp\/v2\/tags?post=3160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}