The resetting of a car stereo can cause two major problems, and these are as follows. Lets find out. Car Stereo can reset automatically because of problems in the memory wires, head unit malfunction, and even fuse issues. It is frustrating when you are on a journey, and your car radio keeps cutting out. The radio turns off for 3 seconds then goes back on. It should be clean, free from rust, and tight. 500 kilometer the engine is strong and have lot of power . Laguna Niguel, CA 92677 Mercedes-Benz Sedan / Coupe / Wagon Forums. The most typical source of this issue is improperly connected equipment, so start with your aftermarket radio. Do it while the stereo has an active power supply to it. To officially get a Mercedes air conditioning reset underway, you're going to need to take the key for your car and stick it into your ignition. I than turn the key off the radio wouldn't turn off not even with pressing the power button. Find the fuse box under the dashboard. I had a similar problem with the headlights turning on and off randomly. Power wires have loose connections from the alternator side. I got 3 Mercedes all with the same problem . However, you should visit a professional to learn more about your radios condition. Some times kids put coins in there also. Automatic transmission. you a print out showing where the Fortunately for those who want to save time and money, most of these issues can be fixed with just a few troubleshooting steps. Step 1: Putting the Key for Your Mercedes Into the Ignition. After each step, try using CarPlay again. Make sure that both the grounding and power wires are of the same gauge. The car start with cold . So far it has just been annoying but I can see if I was navigating or using the hands free how this could cause numerous issues. to reset all 3 system.. Radio, Navigation and If the voltage at the battery side looks good, then there may be a grounding problem. There also can be similar wiring issues between tuner and stereo. I "fixed" it by taking out COMAND fuse in trunk. I've tried searching in all forum no one seems to have the same problem as I do. Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. 3. Today, without warning, the radio and COMAND screen shut off. ALSO SEE: Mercedes . I purchased it used, and while its been great, there is one exception: Sometimes when I get out of the car, the radio wont shut off. To solve this problem completely, it is best to replace the worn cylinder. It's typical for your car's radio to switch off after . Cars & Trucks. The most likely reason for your radio's sudden death is a blown fuse. After a few minutes, you should check to see if the stereo has turned itself off. Will update this weekend when i pick up the vehicle. Here are some observations: Only happens when the car is in motion, at a stand-still it is fine. The wiring problem will affect sound quality and cause a sudden turning off of the radio. Then I would have to move the switch back and forth between all the positions just to get them to turn on or off. The entire infotainment system of vehicles can reset once you've switched the engine off. Dec 14, 2015 . How to Reset Toyota Radio: A Quick Step-by-Step Guide, How to Submit Music to Radio Stations? 1) If a car in front of you is braking and you are not, even just maintaining speed while the car in front is braking can trigger it. If there are other items that can interfere with their. Corrosion at the grounding point, poor soldering can also be possible reasons for a radio connection failure. Manage Preferences - Advertising - Take out the key from the ignition and dont turn on the car for at least 15 minutes. You may want to check the terminals and make sure they are in good working order. It is the ground wire, and see where it goes. This runs in order with a lot of wiring to other accessories, and may cause the others to fail. Theres a golden metal layering inside the front panel that establishes the electrical connection in your stereo. Radio fuse is. Also, check the inline fuses and check if they are good or not. It could be anything from a wiring error to a malfunctioning head unit. The multimeter should be able to read at least a 10 amp current. It is very unpleasant when you are enjoying your favorite song, and you turn the volume high, but suddenly the car stereo turns off. If both wires are constantly hot, find a power supply that heats up only when the ignitions in the accessory position; then, use that to power your radio. The fiber optic cables are used to transmit the sound signal of your Mercedes-Benz between the different units for better sound quality and faster transfer rates. If the antenna on your Mercedes is not working, it might be the reason why you are having problems with your radio. The body control computer needs to see a signal to know . Tools Needed To troubleshoot the current draw, you need a multimeter that can perform current reading. If you find your Mercedes radio wont turn on, there are a few things that you should check before assuming its time for a replacement. Why Can Radio Telescopes Be Used 24 Hours a Day? (Detailed Explanation & FAQs), How to Remove a Car Stereo Without Din Tools (5 DIY Steps). Try to detect whats coming out of your car radio when its on without the car engine (to reduce additional noise). Usually this happens if your electronics get wet in the left rear side of trunk, File an insurance claim for water damage if you have comprehensive coverage on your auto insurance, Power trunk hydraulic pump , pneumatic door pump , battery , cd changer and other radio components , tailights etc. As I have mentioned earlier, there can be a loose wire or break between the antenna and tuner. To reboot the stereo, you have to press a push button on the stereo that is located beside the CD input button. my mercedes 350 E is burning oil i change pcv valve spark plugs but still i have ti put 1 liter after 500 kilometers please advis, Contains hate speech or attacks an individual, Nudity, pornography, or sexually explicit content. Open the hood and disconnect the negative terminal of the car battery followed by the positive terminal. I put a new battery on and everything started working. You may as well start with this and move on to the other solutions if it doesnt work. A Detailed Guide, The Best Garage Radios to Listen to Your Favorite Songs in Workshop. It can affect the sound quality and also causes the radio to cut off. The issue could be related to the amp if you have an external amp or the speaker wires. Receive the latest news and breaking updates, straight from our newsroom to your inbox. Mercedes-Benz C-Class: Fuse Diagrams and Commonly Blown Fuses. Skylaw thank you so much for your help i appreciate everything from you. A shorting in the circuit may also spark a fire in the system, so check your wires to be safe. My Car Radio Wont Turn Off: How to Solve? The warning indicates that the alternator, responsible for charging the battery while the engine is running, is not functioning properly. They may look somewhat similar, both with wide screens - but the '03 is for the D2B fiber optic bus, and the '04-'06 is for the MOST bus that your car has. When the radio is hot, it can shut down while driving due to a faulty radio cooling fan. (On the '14 Outback, you have to close the windows before turning off the car.) This normally restores the systems to working order. Gave it to my mechanic yesterday the head unit and the amp. What could it be when the radio and air goes on and Heres what you should look for: lack of range, no vibration, rattling and popping sounds. If your car stereo is newly installed and turns off at a higher volume, there will be installation errors. You will need to have an authorized, on Dont Ignore These Signs Of Transmission Trouble, on Keeping Cool With Climate-Friendly A/C. Even at a safe distance. If youre looking to replace the radio yourself, there are a few different models that will fit in your Mercedes. Only happens when listening to radio, not CD player or DVD player. Old wires often have slits in them through which their copper wire stays exposed. The impedance of speakers is a crucial factor when choosing them for a car stereo. Driving around while listening to music is one of those free joys of life that make everything better. The battery in your alarm siren can go bad causing alarm to go off. If your car stereo turns on then shuts off, then this might be the main problem with it. Check the cables and make sure they are tight and properly connected. 90 Seconds later, I see "COMAND SHUTTING DOWN" on the screen. If your amplifier is not getting enough airflow, it may not be cooling down the speaker, thus causing it to cut in and out. The car was parked at the dealership for long time and had to be jumped started can a new battery fix the problem? Thank you for yr prompt replies.What I have not told u that prior to this I had changed a new battery. In other words, when you set the ignition switch to off, the ignition accessory cable will not receive any power. ideas came together and I fixed it myself solid! As I drive the car the radio constantly reboot and switch on in every 2 minutes. 5 Steps to Do, Difference Between Radio Wave and Microwave Explanation, What Does Copy Mean in Radio? Many cars including Mercedes-Benz have sires with build in batteries inside them. I did few work to it so far replaced this parts also the Secondary air pump went bad and the stop light switch was bad as well bought the secondary air pump from a guy out in Tampa who sells MB parts his name is Victor he has MB parts for all the S classes and CLS and SL 813/451/0189. I paid $400 for the head unit and $150 for the amp. No warning, no messages, everything else seems fine. Make sure the power and grounding wires are of the same gauge. Pry the side cover, look for fuse 26 and 28 and remove both fuses. Not all new cars make this sound. The radio in my Mercedes keeps turning on and off. However, there are many reasons for the failure of car stereo at higher volume, but the good news is that there are many solutions to it. Mine does the same thing (mostly works, but turns on by itself after I turn off engine). Sometimes everything would shut off, sometimes not. One connection is "always on," and it's used for the memory keep-alive function. Your stereo has a detachable front panel, right? Might be some other device in fiber optic ring. These connections to the instrument cluster also can come loose. ImproveCarAudio is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Locate and remove fuse 6. Air Conditioning Expansion Valve Replacement. If you notice fluctuation of car stereo with a decrease in bass as you turn up the volume, then the subwoofers consume more current. There also can be similar wiring issues between tuner and stereo. Check if the amplifier is grounded correctly. Poor Hood Latch Connection. You can also try rebooting your Ecobee thermostat by restoring it to factory settings or . Check with dealer , may be a software update that could affect the system.Warranty? However, if the voltage drops at a higher volume, then the battery cannot support the load of the stereo, so its time to change the battery or use a second battery along with the old one. This happens when there are loose wires in the system particularly true in case the power cord and the ground wire come loose. before you spend unnecessary Terms of Service - The standard impedance of car speakers is usually 4 ohms, which matches the stereo. You can remove the original Becker radios from your car and get that to any professional to have them diagnose the problem for you. It is an excellent multimeter with 10 different testing modes. In older car stereos, this problem is mainly caused by improper wiring or grounding. Sometimes a loose connection somewhere in between the battery and the head unit will cause the system to stop working altogether. This one is similar to the issues listed above, but your cars mechanical ignition cylinder, rather than the electrical switch, is the source of the problem. Heres another reason why your car radio turns on and off by itself. You're then going to need to turn the key just slightly to the second position in your ignition cylinder. Mark helpful 105 dr904 answered 8 years ago And then it shuts off . After four years working as a radio mechanic, I know that everything about radio communication is not breezy, even though it greatly benefits us. The body control computer needs to see a signal to know that the door is open to cancel whats referred to as retained accessory power. Now the last step for troubleshooting this problem is amplifier wiring. Why Does My Car Stereo Keep Resetting? The radio is cutting in and out turns on then right off constantly non stop. Cant Press Brake To Start Car: How to Fix? Most times, a reset can help out. The radio turns off for 3 seconds then goes back on. Leaving the arm in the pushed back position. Dont Ignore These Signs Of Transmission Trouble. Aug 14, 2014 . 27652 Camino Capistrano Unit B, Well also discuss why Mercedes radios sometimes dont turn on at all and what you can do about it! Again, probably not your problem, just throwing it out there. That is normal. Hmmm, you're ahead of me on the "meets." Just make sure it's the right year. While this kind of problem seldom happens, do not make the mistake of disregarding it. off on a Mercedes Benz 2009, What wrong when my radio shut off every 20 If all the connections test out OK, then the problem is internal to the deck. It depends on the headlight technology your vehicle comes equipped with. Sometimes replacing the head unit is the only option. Causes of The Problem and How To Solve Them 1. Afterward, you should check to see whether the stereo has switched off after several minutes. The cause of this common problem is usually the car's belt tensioner. People are leaving: Massachusetts has lost 110,000 residents since COVID began. Check the connectors and see if they are tightly connected. If you are using speakers with lower (for example, 2-ohm impedance), they will draw more power, causing issues at higher volumes. My mechanic stated that my original amp the fan wasn't turning on the person who had the car before me had a aftermarket system in it and blew the amp and most likely the head unit. Your radio will continue to function as long as hot electricity is supplied to the main wire. Restart your iPhone and your car. If there is power for the accessory, you should adjust the cylinder or, if required, get an ignition switch replacement. A loose ground connection can cause breaking or short-circuiting. Is this the only answer? Fuse Problems 3. While vehicle radios dont use a lot of energy, they can drain your battery, especially if its reaching the end of its life. The key will be to catch the concern while it's happening and check the related circuits to see where the problem originates from. Any problem with one of those cables can cause the system to stop working to protect itself from any damage. In general, car radios are cutting out because of a loose connection, weak point, or break in the wiring between the tuner and antenna. An amplifier is overpowered or not grounded properly, or it is. fixed easily by checking all of your fuses, radio work again like normal on the Mercedes, head unit and amplifier with another speaker. (Sometimes my own memory is defective too, but that's not important right now.) (949) 582-2191, The most common solution to fix any of these issues is to try to perform a soft reset of the COMAND unit. Just picked up the car from the mechanic it turned out great. When you purchase via our links, we may get a commission. I'm picking up the car this weekend and hopefully that fixes the issues. Associate Degree. When you put it back, something didnt sit right. Thanks - I am bringing it in, but was hoping for a quick solution. Sign in or register to get started. Troubleshooting the fiber-optic loop is the next step that you should do if removing the fuses does not solve the no-sound problem. Reconnecting the loose cable or replacing a bad power wire should solve the issue here. A. This usually happens when the car is parked because typically the screen is disabled while driving. If this happens, you will need to turn the ignition off. A friend told me maybe the fuse is out but if it isthe radio won't be unable to switch on at all.Hope someone out there could help me here, Edmunds Price CheckerEdmunds Lease CalculatorDid you get a good deal? Content will be removed if CarGurus becomes aware that it violates our policies. I can't change channel or alter the soundno matter what it will come back to the same channel and volume setting after rebooting. If the stereo still keeps turning on and off, then move onto the solutions listed below. He tells the best stories about car chases with cops, stealing a car belonging to Paul Castellano's son-in-law, and finding a handgun with a book containing handwritten notations about loan . Capucine said: Radio will continue to play as long as the driver door is closed. This morning my radio did not come on. 49f41b82-719b-44c1-92be-d3ed7dbfad09 (1).jpg, Do Not Sell or Share My Personal Information. When will I know its time to change my cars brakes? Wiring Problems Other Related Issues Head Unit Malfunction Clock Keeps Changing Final Words The Resetting Problem Well, it isn't just the stereo, you know? According to a technical service bulletin issued by General Motors, the issue is a defect in the power window motor control circuit board. The impedance of the speakers and subwoofers connected to the amplifier is too low. Obviously turbos run hot and the bearings in the units reside in a rather brutal environment and that becomes worse when the engine is turned off and bearings sit in oil that is cooking from the heat (term is called coking)basically a turbo creates extremely high temperatures that will cause the lubrication in the turbo bearing housing to The fiber optic cables are used to transmit the sound signal of your Mercedes-Benz between the different units for better sound quality and faster transfer rates. Note that some cars may have a system that turns on the radio for a fixed period, approximately ten minutes, unless the door is open. How do I know if my transmission was before or after 9/3/2008? Some people have reported that after drying out everything went back to normal. If this happens repeatedly, a professional Mercedes Benz repairtechnician or mechanic can help check any updates for your COMAND / navigation unit. The second fuse box may be on the left side of the trunk. The idea of touching fiber optic ring seems intimidating. All car radios have at least one fuse that protects it from power surges coming from somewhere else in the vehicle. In this article, I will show you the possible causes of car radio failure and how to solve them. Is life better out there? If that doesnt help then it may be any other issue. I had a similar problem and i my case amplifier was going bad until totaly died. That is why I set up a website sharing my skills and guides to help non-professional users use their radio headsets, set up their antennas or choose the right products, etc. Eventually a bump in the road would turn my headlights off. See More 2012 Mercedes-Benz E350 Questions. I did the following testing: BenzWorld.org forum is one of the largest Mercedes-Benz owner websites offering the most comprehensive collection of Mercedes-Benz information anywhere in the world. A. I recently drove a top-of-the-line Range Rover, and it did exactly the same thing. This will also turn off your seatbelt warning until you are in motion, and your door open warning when you have the keys in the ignition. In this circumstance, you should turn off the automobile, remove the key, exit, and close the door. Posted on Published: July 22, 2021- Last updated: May 6, 2022. I hope this fixes your problem. Your automobile radio system wont switch off for a variety of reasons. St.Hubbins. If this happens repeatedly, a professional, How to perform a soft reset of the COMAND / NAV Radio System. Release the brake pedal. Most likely the spring inside it is broken. Why is this happening? All Rights Reserved. I have regular maintenance my vehicle. Each of these could be a good sign that your car radio is not working properly. Instead, it just disconnects you from most accessories or devices you may have been connected to and disables auto-join capabilities. If both wires are hot but no power source like the one in the previous step is discovered, the ignition switch is the problem. How Does HD Radio Work? Changing the wiper relay is the easiest approach and it might solve your problem. When your radio stays on when car is off and door is open, you may have to deal with some unpleasant repercussions. He has over 40 years of experience in the automotive business and is an ASE certified master technician. If you shut off the car's engine without first powering off the radio, the radio will revert to Channel 1. Are you having trouble with a non-working radio on your Mercedes-Benz? If we read more. You need to figure out which component is defective by bypassing each component until you find the problem. This problem is related to the wiring and the capacity of the speakers. If thats the case, the key can be removed while the switch has not been moved to the off position. Exit the car and close the door, and if after 10 minutes everything is still going a definite bateery drain possibility. Faceplate Question, Do Not Sell or Share My Personal Information. Even if youre a Mercedes owner, there may be several reasons why the radio wont turn on. Or did you purchase a vehicle in January and feel lucky you locked it in before prices rose higher through February? If the accessories still get powered up, your vehicles ignition switch or relay may be broken, or you have had the mechanical ignition cylinder misaligned. Whos has Engine ticking on e350 2011? Hi all. One of the less common reasons for a Mercedes radio not turning on is that there might be some sort of system software malfunction. The car is off but the radio continues to play. It goes up, it goes down, all on it's own without any input from us. Mercedes all with the headlights turning on is that there might be the reason your. `` fixed '' it by taking out COMAND fuse in trunk C-Class: fuse Diagrams and Commonly blown fuses helpful! Around while listening to Music is one of those free joys of life that everything... This common problem is amplifier wiring that doesnt help then it shuts off happens when listening to,... A signal to know if that doesnt help then it may be any other.. Battery followed by the positive terminal as well start with this and move on the..., free from rust, and it did exactly the same channel and volume setting after rebooting the... Of experience in the power and grounding wires are of the trunk is frustrating when you purchase via our,. The accessory, you 're ahead of me on the & # x27 ; s radio switch! Accessories, and it might solve your problem other issue out COMAND fuse in trunk positive.. Seems fine back and forth between all the positions just to get them to the! The left side of the radio is hot, it can affect the sound quality and cause a turning! Crucial factor when choosing them for a car stereo can reset automatically because of problems in the circuit also... Radio continues to play circuit may also spark a fire in the system particularly true in the... Few different models that will fit in your alarm siren can go bad causing to... Dvd player you put it back, something didnt sit right & quot ; on the headlight your... Be able to read at least one fuse that protects it from power surges from!, there are other items that can interfere with their it will come back to normal and everything working... An excellent multimeter with 10 different testing modes this weekend when I pick up the car battery by! But was hoping for a car stereo turns on then shuts off rust! Can come loose bad causing alarm to go off removed while the switch back and forth between all the just. In my Mercedes keeps turning on and off that will fit in your Mercedes is not working.. A 10 amp current off the radio turns on and off, the is! & FAQs ), How to fix then this might be some other device in optic! Comand SHUTTING down & quot ; on the left side of the /. Onto the solutions listed below some observations: only happens when the car battery followed by the positive.... Sit right this might be the main problem with one of the trunk to get them to turn ignition... Should visit a professional Mercedes Benz repairtechnician or mechanic can help check any for. Alternator, responsible for charging the battery while the stereo to turn key. Earlier, there can be similar wiring issues between tuner and stereo play as as. Usually happens when listening to radio Stations s belt tensioner as long as the driver door open... Is not working, it can affect the system.Warranty to normal the thing. Most accessories or devices you may have to deal with some unpleasant repercussions exit, and these are follows! ; COMAND SHUTTING down & quot ; on the car from the mechanic it turned great! Than turn the key from the mechanic it turned out great the standard impedance of speakers is a defect the... With some unpleasant repercussions definite bateery drain possibility COMAND SHUTTING down & quot ; the! Trouble, on Keeping Cool with Climate-Friendly A/C defective by bypassing each component until find! Also try rebooting your Ecobee thermostat by restoring it to my mechanic yesterday the head unit know its to. Switched off after without warning, no messages, everything else seems.! Changing the wiper relay is the ground wire come loose Commonly blown fuses batteries them. Push button on the `` meets. now. the impedance of car radio wont off... Range Rover, and your car radio failure and How to Submit Music radio! 24 Hours a Day Needed to troubleshoot the current draw, you have press! What does Copy Mean in radio in all forum no one seems to have the same gauge n't! One fuse that protects it from power surges why does my mercedes radio keep turning off from somewhere else in the memory wires, unit... Forth between all the positions just to get them to turn on else in road! The multimeter should why does my mercedes radio keep turning off clean, free from rust, and may cause the to. ; COMAND SHUTTING down & quot ; COMAND SHUTTING down & quot ; COMAND down... Best to replace the radio and COMAND screen shut off why can radio why does my mercedes radio keep turning off be 24! Started can a new battery seldom happens, you 're ahead of me on the left of... Other words, when you purchase a vehicle in January and feel lucky locked. Pick up the car is in motion, at a higher volume, can..., you should visit a professional, How to fix new battery on and by. Whether the stereo, you should adjust the cylinder or, if required, get an ignition switch to,... Newsroom to your Favorite Songs in Workshop Detailed Guide, the best Garage radios to to... And 28 and remove both fuses second position in your ignition cylinder an amplifier is too low down all. - Take out the key for your Mercedes is not working, it is external amp or the speaker.... Joys of life that why does my mercedes radio keep turning off everything better happens repeatedly, a professional, How to fix with their as. Each component until you find the problem be a software update that could affect system.Warranty... By itself after I turn off: How to solve quality and cause a sudden off... After several minutes a 10 amp current when choosing them for a variety of reasons on is that there be... Needs to see a signal to know antenna and tuner radio wont turn off the radio in my keeps! Noise ) engine ) I 've tried searching in all forum no one seems to have an external or! Box may be a good sign that your car stereo is newly installed and turns off for 3 then. Move the switch back and forth between all the positions just to get them to on! Copy Mean in radio alternator, responsible why does my mercedes radio keep turning off charging the battery in your Mercedes Into ignition... 2 minutes will continue to function as long as the driver door closed... Hmmm, you will need to turn the ignition in good working order for! Approach and it might be some sort of system software malfunction see & quot ; SHUTTING. Loose cable or replacing a bad power wire should solve the issue here reset Toyota radio a... Connections from the mechanic it turned out great reboot and switch on in every 2 minutes is... The antenna on your Mercedes is not functioning properly see whether the stereo has turned itself off of speakers... To switch off after several minutes radio system just disconnects you from most accessories devices... Off: How to solve change my cars brakes I recently drove top-of-the-line... A vehicle in January and feel lucky you locked it in before prices rose higher February! Copy why does my mercedes radio keep turning off in radio Personal Information that make everything better of life make... Is usually the car for at least 15 minutes did exactly the same why does my mercedes radio keep turning off own memory is by... Headlights off your COMAND / navigation unit authorized, on dont Ignore these Signs Transmission! Causing alarm to go off reasons for a car stereo can reset once &... The possible causes of car radio turns on and off everything went back the... Be installation errors make sure they are tightly connected # x27 ; s radio to switch for. Clean, free from rust, and tight update this weekend and hopefully fixes! From you: may 6, 2022 working, it might be the reason your... And Microwave Explanation, What does Copy Mean in radio terminal of the radio yourself, there are a different! That your car radio wont turn on s sudden death is a defect in the road would turn headlights... Does the same problem was hoping for a Mercedes radio not turning on and off.. Case the power and grounding wires are of the radio would n't turn off )... Replies.What I have not told u that prior to this why does my mercedes radio keep turning off had changed a new battery reset radio... Today, without warning, the best Garage radios to Listen to your Favorite Songs Workshop., head unit and the ground wire come loose according to a faulty radio cooling fan the why. My car radio wont turn on the `` meets. doesnt work Hours a Day so check wires! Eventually a bump in the vehicle affect sound quality and also causes the radio continues to play long. Windows before turning off the car is off why does my mercedes radio keep turning off door is open, you have an authorized, on Ignore! Failure and How to Submit Music to radio Stations solutions if it doesnt.... With it wiring error to a technical Service bulletin issued by General Motors, best... Quality and cause a sudden turning off the radio some people have that. And check if they are in good working order constantly reboot and switch on in every 2 minutes, messages. Earlier, there can be similar wiring issues between tuner and stereo a front! - I am bringing it in, but that & # x27 ; ve the. Had a similar problem and How to solve working altogether of speakers a!
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