Mercedes Key Turns But Wont Start
I can drive it down the road and back and shut it off then try to crank it and all power comes on but the car won't turn over. Not only do you have to make changes to your schedule or arrange for grandma to pick up the kids, but you have the burden of an expensive repair bill looming over your shoulder. The lights come on in the dashboard, so that means the battery. I turn the key but the engine won't start and the starter won't turn. If your car turns over fine, but won't "catch", read on!. Our owners videos are designed to help you get the most out of your Mercedes-Benz. I can put the key in the lock on the driver's side, but it won't turn to unlock the lock. This will set off the car’s alarm. Look for a button on the back of the newer key fob. The radio and lights work, but the windows won't roll up or the sunroof, and the glove compartment doesn't light up. How To Check The Charge Of Your Battery. The temporary solution, based on the owners manual, was to leave the key in the On position for 10 minutes until the security light went off, then turn the key to the off position, wait a few seconds, and I was able to start it. he said that with 25 years of experience working for mercedes that this is a common issue where the vehicle wont recognize the key, locking the steering and cutting off the engine power to start up. If you have a new remote key and notice the LED is not illuminating when locking and unlocking the vehicle, the remote key needs to be inserted into the vehicle EIS and used to activate LED function. Mercedes drivers with manual keys might also begin to encounter difficulty with the efficiency of the key's ability to start the ignition or to unlock the doors. Here is a list of troubleshooting steps that I tried (obtained from reading forums and calling around). The Mercedes-Benz ECO Start/Stop feature is a very useful function to have. I looked that the packaging on the new batteries and they were manufactured in Sep 2006, so technically they should still be in good condition, but I'll check later with my multimeter when I can get into the car just incase, because I don't know the batteries. i don't see the p for parking on the instrument PeachParts Mercedes-Benz Forum clk 320 wont start - PeachParts Mercedes-Benz Forum. The dont think its the battery because the lights still go on and all accessories go on when I try to start it, it just doesn't kick over at all. The following list outlines the most common circumstances and tells you what action you can take to try to remedy each situation: The car is silent when you turn the key in the ignition. When I turn the key to on nothing lights up, no crank, no clicks, no windows and no radio. when I turn the ignition it turns very slowly. the truck won't start, glow plug light on dash does not even light up when you turn the key. If you've got an electronic key, you won't have this issue. I have undergone extensive factory training to become a Master certified Mercedes technician. Is the battery in the key dead, if so you can start it still if you hold the logo up to the ignition button and push as usual. High quality and high technology go hand in hand. Could this be ECU related? Car was perfectly fine up until this point, no prior indications or symptoms. he said that with 25 years of experience working for mercedes that this is a common issue where the vehicle wont recognize the key, locking the steering and cutting off the engine power to start up. I wait a bit and back it out of the garage and turn it off. If one day, you ever found that your Mercedes won't start, don't fret! Some of the common car problems may be the culprits. Again, this solution only applies to vehicles with a traditional ignition key, meaning a metal key that actually inserts into an ignition switch and turns to start the car. The engine stopped like the key was turned off. Had it serviced 59000km brought it home no problems. Own a Mercedes and having trouble starting your car? Some common symptoms include key turning but no lights, central locking not working or the key not turning at all. Mercedes Benz Car Wont Start. If you've just found yourself locked out of your car with a dead key fob, we may be able to get you going. Sometimes a gear selector switch fails and even when you shift the transmission lever into Park, it still indicates that it's not in Park. Locked and unlocked the. It won't start up, the l. He told me of a recent PT Cruiser lock failures and other similar merkedeez problems. Is the battery dead? But how come it wont start even I use jumper with another car? Or any electrical. (See How to Check Your Car Battery. The Eco Start/Stop system requires a variety of activation conditions including engine temperature, battery charge, whether you are stopped on an incline, if the door is closed, whether the driver’s seatbelt is fastened or not and the needs of the climate control system to maintain cabin comfort. One key start Remote start. My Mercedes 1998 clk 320 doesn't start first time every time - the engine doesn't crank , ABS warning light comes on then nothing, then I turn the key back or take it out, then try again and it. When you turn the key the motor will turn over but not start. Mercedessource is NOT affiliated. it has a new battery The will - Mercedes-Benz 2000 S-Class question. I recently had an 85 300 D in the shop for some other maintenance. Mine started out this way but now it won't start at all, like the park switch is not working but i can't find where the switch is mounted. HOW IT WORKS: There is a small chip in the ignition key called a transponder. Note that many people incorrectly associate “turn over” with “start”—they are not synonymous so please use these terms correctly. I have not had to change my battery just yet. The Battery was load tested and it seems o k, the lights & radio come on, all the seat adjustments work, but the key won't turn to start the car, also the steering wheel is not locked, it will turn both ways. I'm tired of unlocking it there and then walking back around the car to get in. The battery has been a lil sluggish so I run go replace it so I can ride today. I had this happen twice. When they do, you may not be able to enter the car. The car won't start. Turn the key back and forth over and over and work the shaft lubricating it. Within 12 hours of this happening the car will not start and the electronic key will not open the door as the entire car is dead. The most obvious sign of a broken starter motor is a clicking sound when you turn the ignition key, followed by the engine refusing to turn over and start. My car only came with one, and no, it won't turn on when in my pocket. I was able to drive it to the bank, was inside for 5 minutes, and come back out to find that my car will not start. If you obtain a new key for your Mercedes, the key will need to be programmed, or reset, to work with your particular vehicle. There's a good chance it's the neutral safety switch. Nothing Happens When I Turn the Key (Starting Issues Diagnosed) CarNewsCafe. Getting behind the wheel of a car that suddenly won't start can be an infuriating feeling to say it mildly. If I insert the key it clicks and if I turn it it clicks as well. Only known remedy is to pull hard on the steering wheel in a left or right rotation while turning key at same time to unlock an otherwise locked ignition/steering wheel. Since then, i unlock with metal key, then start with key fob. MERCEDES BENZ CLASS V 6382 VITO 108CDI diesel 2002 HELP WONT START Hiim new to this siteI have had my vito for two years now and great van but over the last year or so it has had a problem starting on cold and on hot forget it but will bump start and drive fine. mercedessource Tech help - Summary list of the most common causes and parts needed to fix them The common problem is listed and the reference word or words for the part to fix it are listed as a solution. The wheel will only move in 1 direction. Turn the key back and forth over and over and work the shaft lubricating it. After searching the forum for similar problems, looks like fuel pump relay is logical place to start. Is your key worn so you have to jiggle the wheel to turn the key or to get the ignition to. my 2000 S500 mercedes will not start. I have been repairing it and now am to the point where I would like to start the engine but the engine will not crank when the key is in the start position. Hey guys so my car has been running fine and has recently been serviced but yesterday I had the heater on during a rainy night and the car just stalled and finally stopped. Before calling your service center or mechanic, you might want to have an idea what is wrong with your car first. Like any electrical component, the ignition switch may overheat and malfunction. My daughter got out of it and tried to lock it, remote key wouldn't lock it. where can i find the valve? or what can cause the problem?. Hey guys so my car has been running fine and has recently been serviced but yesterday I had the heater on during a rainy night and the car just stalled and finally stopped. I towed the car to the dealership and was told THE EIS was the issue. I looked that the packaging on the new batteries and they were manufactured in Sep 2006, so technically they should still be in good condition, but I'll check later with my multimeter when I can get into the car just incase, because I don't know the batteries. Within 12 hours of this happening the car will not start and the electronic key will not open the door as the entire car is dead. There are a few theories about why your Mercedes refuses to start when you switch the key in the ignition. Your vehicle can memorize the seat settings, vent the interior before you enter and communicate with your garage door opener. If you turn the car key and your car won't start, don't give up. New keys can sometimes be difficult to turn in an old lock, try wiggling the key up and. I have a 99 ML320, the only experience that I have had when the engine won't start the first time is when I leave the keys in the ignition and I try to start it and it doesn't so I have to completely turn it off then turn the key over and it starts. Mercedes-Benz E-Class and E-Class AMG: Why Won't My Car Start? Having a car that will not start can be a major inconvenience. Connecting the vehicle to an OBDII code reader will help diagnose the problem. Our owners videos are designed to help you get the most out of your Mercedes-Benz. (roughly 1/2 inch). C220 CDI will not start will need someone to turn the key while testing. If the key does not turn in the ignition, try moving the steering wheel as you try to turn the key. a scan tool and it wouldn’t start then as part of the procedure and now it won’t start with the key either. Why Is It That My Car Starts but Won't Stay Running? Credit: Per Mattisson/The Image Bank/Getty Images Depending on whether the engine is hot or cold, there are a couple different reasons why a car might start with no problem but stall shortly afterwards. The Mercedes-Benz ECO Start/Stop feature is a very useful function to have. The engine stopped like the key was turned off. 2014 Mercedes-Benz CLA250: Stop the Auto Stop-Start. 2005 Mercedes-Benz CL65 AMG: It Won't Start, Part 2. SOLVED - Just thought I would post to explain about a somewhat common issue people are getting on their W203s and how it was resolved for me. Own a Mercedes and having trouble starting your car? Some common symptoms include key turning but no lights, central locking not working or the key not turning at all. January 31, 2014. Mercedes Electronic Ignition Switch EIS ESL system falters, "Turn and Start" will deactivate and you won't be able to start your car. My buddy's Nissan didn't want to start from his keyless fob until the battery was charged. My daughter got out of it and tried to lock it, remote key wouldn't lock it. Then try to start it. What's causing this? The remote may need the battery replaced. Plus, the controls to open the doors and trunk don't work. The reason that you can have a situation where the radio, dash lights, headlights, and other electronics seem to work fine, while the engine stubbornly refuses to turn over, relates to the amount of current that each of these devices. When I turn the key to on nothing lights up, no crank, no clicks, no windows and no radio. The batteries in the key are new, it will lock & unlock the doors, roll the windows up & down, and open the trunk. Press down hard on brake pedal. 1991 190e 2. Mercedes No Start, Key Won’t Turn? Mercedes Perth – MB Centre. What's causing this? The remote may need the battery replaced. Engine Cranks But Won't Start What's causing the no-start? All engines require three things to start and run: spark, fuel, and compression. There are a few theories about why your Mercedes refuses to start when you switch the key in the ignition. You turn the key, but your car won't start. Basically, a keyless push button start system eliminates the need for a conventional ignition key and mechanical steering column switch. 7 EGR Detroit 60 Series with just over 800k Mi. Why should an engine that has everything right still refuse to start. We towed our 2005 Mercedes-Benz CL65 to Fletcher Jones Mercedes-Benz in Newport Beach after it left us stranded. the lights work, but are very weak and the wipers work slowly. A popular automotive convenience feature, push-button start, can lead to accidental death from carbon-monoxide poisoning. Check solderings on K40/7 (Pasenger, right Side, engine Bay, under black cover, where starter relay seats) for cracked solder joints(you have to disassemble that part, to get to the PCB inside). If the EIS unit becomes faulty, the "Turn & Start" function will be de-activated and the module will be locked for security purposes. We will NOT respond to any requests by email. This key should allow you to manually pop the trunk and is a traditional Mercedes key and you might not even notice it unless you look closely. I am assuming you already knew about this, but it dawned on me that perhaps you have only been using the remote portion of the key/fob to open the trunk. when parking on a hill) or when one of the front wheels is pushed against something (e. 208267) W123 ignition switch (7 pin) and lock housing assembly and lock. One key start Remote start. Very often this could be caused by a low battery or poor connection between the battery and starter. Continue Reading. When you turn the key the motor will turn over but not start. If you do not hear that, there may be a failed relay, fuse, or fusible link, or even a bad fuel pump. Everything. Just makes a click sound when I turn the key. How to Start Your Mercedes-Benz With a Key Instead. C-Class (W203) - Key will not turn. I think the issue may be with the switch, as it shuts off the radio when starting the car and then it's supposed to put it back on. If your car turns over fine, but won't "catch", read on!. The vehicle owner still has to insert a key into the ignition switch and turn it to unlock the steering column and deactivate the immobilizer system. i recently had air in the fuel pipes( the ones you can see top of the engine) and replaced the fuel filterthis was two months agoWhen. If your car won't start but the lights and radio work, then you could be dealing with one of several potential problems, up to and including a dead battery. Hello, I inserted my key into my 2008 c300, but the car won't start. 2005 Mercedes-Benz CL65 AMG: It Won't Start, Part 2. Mercedes Benz Car Wont Start. Measure this distance. Connecting the vehicle to an OBDII code reader will help diagnose the problem. Silverado turns over like it wants to start, so i checked for spark, but there is none. You are running late for an appointment or meeting and jump into your Mercedes-Benz E320. When your vehicle isn't starting, you first need to make an important distinction as to the type of no-start you have. he said that with 25 years of experience working for mercedes that this is a common issue where the vehicle wont recognize the key, locking the steering and cutting off the engine power to start up. We recently fixed another Mercedes Benz shifter that was stuck in park. Wondering what you should do if your car won't start? Follow these simple steps to diagnose the problem, find a solution, and get back on the road. A smart key is an electronic access and authorization system that is available either as standard equipment or as an option in several car models. HELP! My car won't start. Learn about this problem, why it occurs, and how to fix it. Not only will this prevent you from turning the steering wheel, you won't be able to pull out the key from the ignition either. I left the key in the ignition over the weekend in the off position. An item jostled and dropped as much as a key can submit to internal wear and tear over time. Problem: Car won't start in damp or rainy conditions, or you drove through a puddle and the engine died on youDiagnosis: Could be a faulty distributor cap. Why Is It That My Car Starts but Won't Stay Running? Credit: Per Mattisson/The Image Bank/Getty Images Depending on whether the engine is hot or cold, there are a couple different reasons why a car might start with no problem but stall shortly afterwards. If the car is cranking (you hear the normal starting noise) but the engine will not fire then you have a no-start. Connecting the vehicle to an OBDII code reader will help diagnose the problem. This key should allow you to manually pop the trunk and is a traditional Mercedes key and you might not even notice it unless you look closely. i recently had air in the fuel pipes( the ones you can see top of the engine) and replaced the fuel filterthis was two months agoWhen. I jump the car and it starts up fine. The 2000 Mercedes-Benz ML320 has 2 problems reported for engine turns over but will not start. There are a few theories about why your Mercedes refuses to start when you switch the key in the ignition. I think the issue may be with the switch, as it shuts off the radio when starting the car and then it's supposed to put it back on. But don't despair! Often the cause of your Mercedes-Benz not turning over is relatively simple, a problem that can be fixed without expensive repair fees. MERCEDES BENZ CLASS V 6382 VITO 108CDI diesel 2002 HELP WONT START Hiim new to this siteI have had my vito for two years now and great van but over the last year or so it has had a problem starting on cold and on hot forget it but will bump start and drive fine. If no or low fuel pressure the nasty little culpret may be a 25 cent o-ring. Vibration alarm. You insert the key in the ignition of your Mercedes-Benz, but nothing happens. When i try to start it for the first time on a oarticular day it takes a long time to start. 7 EGR Detroit 60 Series with just over 800k Mi. Is the battery in the key dead, if so you can start it still if you hold the logo up to the ignition button and push as usual. Operation: Your Remote Start for Mercedes Benz system can be operated in a number of ways. Help! Car won't start 2 Answers. If your car won’t start and all you hear is a clicking noise, your battery is either dying or completely dead. Automakers have been adding an Off button to their stop/start systems, but it's only temporary. If you have a new remote key and notice the LED is not illuminating when locking and unlocking the vehicle, the remote key needs to be inserted into the vehicle EIS and used to activate LED function. Others say that the engine won't start, which can mean that it does not crank then start, or that it will crank, but not start. The following three factors may explain why your key is unable to turn in the ignition: Factor 1: Bent key. Turn key all the way off leaving it in ignition. "The Rogue won't start!" She said she turns the key but hears nothing but silence. Measure this distance. The "key" symbol appears in the gear indicator window. Here's How You Diagnose An Engine That Won't Start. There are a few theories about why your Mercedes refuses to start when you switch the key in the ignition. Tags: can no fuel cause my car not to start, car not starting, car starting, car will not turn over, car won't crank, dead battery, no gas, why isn't my car starting, why won't my car start, why. That way, you will be able to evaluate whether or not you. Car is 16 years old, it won't run forewer S 320 CDI: 1. Mercedes Mechanic say: If the key does not turn in the ignition, try moving the steering wheel as you try to turn the key. Over the next couple of days used it. 2005 Freightliner with a mercedes engine wont start after sitting for more then 12 hours without start up fluid. If, for some reason, you would rather start your Mercedes-Benz using the key, there is a way to do so. The 2006 Mercedes-Benz B200 Turbo car makes a clicking noise but won't start: If you turn the key to the "Start" position, but the engine won't crank; all you hear is a single click or repeated clicking coming from the engine compartment. More: 2003-2004 Mercedes Benz G55. The 2006 Mercedes-Benz B200 Turbo car makes a clicking noise but won’t start: If you turn the key to the “Start” position, but the engine won’t crank; all you hear is a single click or repeated clicking coming from the engine compartment. This happened out of the blue one day with no warning. Let car sit for an hour or two, then it starts fine. I check the battery and it's reading 4. My car won't start when I turn the key. Is the battery dead? But how come it wont start even I use jumper with another car? Or any electrical. Recently it's become increasingly difficult to start, until eventually it wouldn't start at all. Horande Replacement Car Key Fob Case Fit for Mercedes Benz E C R CL GL SL CLK SLK Entry Smart Remote Control Key Fob Cover 3+1 Button No Chip Sell on Amazon Start. Becasue the shifter shouldn't stop it from working, unless somethign else got damaged. Mercedessource is NOT affiliated. It cranks slow but won't fire up. If your key won't turn your ignition lock cylinder and the steps above did not get your ignition to turn, then there is an extremely good chance your vehicle is in the list below. When an engine cranks, you can hear it spin, but the engine doesn't catch and run on its own. How To Check The Charge Of Your Battery. When I turn the key to on nothing lights up, no crank, no clicks, no windows and no radio. This happened out of the blue one day with no warning. 2014 Mercedes-Benz CLA250: Stop the Auto Stop-Start. I have a smart key for my 2006 Prius. Mine will not clear the key symbol in position one, I need to move it back to position zero and press the unlock twice and then go to one (wait for the glow plugs and shift into neutral) then turn to position two to start it. If one day, you ever found that your Mercedes won't start, don't fret! Some of the common car problems may be the culprits. hi there! i have a 2002 c230 kompressor coupe that will not start. I took a long trip recently and it suddenly occurred to me to wonder: what if I'm away from home (where I keep my second smart key), and the smart key's internal battery suddenly dies: would I be able to start the car by putting the smart key into the opening normally used to start the car when you have a non-smart key?. The E320 is a four-door sedan made by Mercedes Benz. I looked that the packaging on the new batteries and they were manufactured in Sep 2006, so technically they should still be in good condition, but I'll check later with my multimeter when I can get into the car just incase, because I don't know the batteries. Look for a button on the back of the newer key fob. mercedes forum at Car Dealer Forums; suddenly the ign. No cranking sounds, no engine not turning over, no clicking sounds no nothing. Thanks for all the quick responses. I have undergone extensive factory training to become a Master certified Mercedes technician. when I turn the ignition it turns very slowly. Like any electrical component, the ignition switch may overheat and malfunction. I used the other key and replaced the batteries in both. "The Rogue won't start!" She said she turns the key but hears nothing but silence. 208267) W123 ignition switch (7 pin) and lock housing assembly and lock. Only one of two issues assuming the correct key is being used. I had a problem with my E350 mb. Here we discuss top ways to fix the engine when not starting properly. Own a Mercedes and having trouble starting your car? Some common symptoms include key turning but no lights, central locking not working or the key not turning at all. You can unlock your car, but the key won't turn or start the engine. Showing 1 - 969 of 969 Results. The only tool you need is a shoe. The Eco Start/Stop system requires a variety of activation conditions including engine temperature, battery charge, whether you are stopped on an incline, if the door is closed, whether the driver's seatbelt is fastened or not and the needs of the climate control system to maintain cabin comfort. Still others use the expression like, "my car won't turn over" to mean that it won't start, when they. Car cranks over and ignition key sticks in the start position. This article is for you. The list below is just a partial list of vehicles we suspect of having ignition failure problems when people call and say "My key won't turn in my ignition". ML 350 wont start…guess what. If your car won't start but the lights and radio work, then you could be dealing with one of several potential problems, up to and including a dead battery. Learn about this problem, why it occurs, and how to fix it. My smart key locks and unlocks but wont start my car!! - Answered by a verified Mercedes Mechanic. A 1997 Mercedes Benz E320 that turns over but won't start may not be getting enough fuel or may have no spark. It will work fine for a week and then not start. E320 cdi starting problem. Radio works, dash … read more. In my case: my Inspiron 620 desktop won't turn on, no light on button, solid orange or amber if you prefer, on board. What do you do in the morning when your car won't start? You should be on your way to a crucial meeting but you're faced with calling a rescue service, ordering a taxi and making grovelling phone calls to apologise and try to rearrange all your important appointments. Just makes a click sound when I turn the key. But don't despair! Often the cause of your Mercedes-Benz not turning over is relatively simple, a problem that can be fixed without expensive repair fees. Own a Mercedes and having trouble starting your car? Some common symptoms include key turning but no lights, central locking not working or the key not turning at all. Everything. Is the battery dead? But how come it wont start even I use jumper with another car? Or any electrical. The key still will not turn. The brake pedal is stiff and won't move and I can't get the gear down from park. You must have at least 2500 PSI to start. If you've got an electronic key, you won't have this issue. If the key is in good shape, try turning the steering wheel. If remote functions on your Mercedes key do work and yet your car won’t start, this can still be a problem with your key. Many modern cars now have stop-start systems with stronger starter motors to cope with the demands of frequent engine on/off cycles in traffic. my mercedes b160 key fob has stopped working. We've had the battery checked and it's at 12. When I put the key in and turn. Most people don't keep a set of mechanic's tools in their trunk. Tried to start it, it won't turn over or start, seems completely dead. Imagine attempting to find the door lock on your Mercedes on a dark, rainy night with your arms full of groceries. The smart key will not turn in the ignition. Models we can repair:. I turn the ignition key. Hi, I have got a mercedes C220, 03REG and when i turn the key to start the car it does not start it does not give out any noise or anything it just does not start. com's long-term 2015 Mercedes easy-to-lose cap off the door's lock and then using the manual key like a traditional twist-and-turn key. Sometimes, if we're lucky, it does. MERCEDES BENZ CLASS V 6382 VITO 108CDI diesel 2002 HELP WONT START Hiim new to this siteI have had my vito for two years now and great van but over the last year or so it has had a problem starting on cold and on hot forget it but will bump start and drive fine. I've found that if I deliberately lock the steering wheel, then rock both the wheel and jiggle the key simultaneously, after a few seconds it releases and I can turn the key and start the car. I have undergone extensive factory training to become a Master certified Mercedes technician. Locked and unlocked the. Some people say their car won't crank, which may mean that their starter does not turn the engine on. Own a Mercedes and having trouble starting your car? Some common symptoms include key turning but no lights, central locking not working or the key not turning at all. Worked fine yesterday. Thanks for all the quick responses. So when your car won't start and you. My Mercedes 1998 clk 320 doesn't start first time every time - the engine doesn't crank , ABS warning light comes on then nothing, then I turn the key back or take it out, then try again and it. This EIS commonly fails allowing the key will turn but no ignition lights and the engine won't turn over. With nothing more than a multimeter and a methodical approach, you should be able to find out what's wrong getting your car up and running in no time. When we turn the key to start the car like usual, it seems like the starter motor tried to turn but got stuck. hi there! i have a 2002 c230 kompressor coupe that will not start. If you turn off your vehicle while moving the steering wheel just a little bit, the steering wheel lock will activate. Yesterday my wife called me at work. Left Key in Ignition --> Car Won't Start? At some point during the month of August the Roadfly forums are going to become archive only. Press down hard on brake pedal. New keys can sometimes be difficult to turn in an old lock, try wiggling the key up and. Rather than starting the vehicle, you will have to turn the key to the run position and back to the locked position several times in a row. If you can turn the key out of the off position, it's time to "gear up" to look in other places for the problem. I jump the car and it starts up fine. 208267) W123 ignition switch (7 pin) and lock housing assembly and lock. HOW IT WORKS: There is a small chip in the ignition key called a transponder. Please scroll down as some years are combined! (ex: 2010-17). Theres no sign of light, wipers, radio and other. I have a 2007 chevy impala that won't start. While there are a variety of reasons your Mercedes-Benz C280 won't start, the most common 3 are a dead battery, an alternator problem, or failed starter. Mercedes Ml 270 CDI doesn't start in the morning only? hi. The engine depends on several other things to run smoothly such as fuel, ignition systems, etc. Plus, the controls to open the doors and trunk don't work. A clicking noise when turning the key usually indicates a problem with the starter motor. To Bros with the 'Change Key Battery' message for Keyless-Go Mercs. If your key won't turn your ignition lock cylinder and the steps above did not get your ignition to turn, then there is an extremely good chance your vehicle is in the list below. No dash lights, no head lights, nothing that I can find on the chassis has power. 20 years old, an engineering student with my first 50k car that won't start. The E320 is a four-door sedan made by Mercedes Benz. If remote functions on your Mercedes key do work and yet your car won't start, this can still be a problem with your key. If you can't get your E320 to start, there are several things that you can do to troubleshoot the problem. However, when i turn the key all the way, the engine does not even try to crank. Well, it takes 3 things for an engine to run: Compression Air/Fuel mixture Spark. Just makes a click sound when I turn the key. The product works so well, that we want to keep the integrity of the installation in the hands of Mercedes-Benz Technicians. It drained the battery. when I turn the ignition it turns very slowly. Tried to switch my house batteries over to start engine, no luck, not even a light on the dash. The engine restarts the instant you press the accelerator, so you won’t even notice a difference while driving. That key fob's lock and unlock button is beneficial to have in such situations. You also might want to try removing the fuel pump relay, so the car won't start, and then turn the key and have it snap back and see if this is related to the actual engine running, or related more to the switch. i recently had air in the fuel pipes( the ones you can see top of the engine) and replaced the fuel filterthis was two months agoWhen. key won't turn as if the transmission isn't in PARK but it.