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How to Fix a Mercedes Ignition Key That Won't Work An ignition key that does not work is one of the most frustrating things you'll have to face when driving an Mercedes. It can be an indicator of other issues, too. There are three main reasons Mercedes Benz ignition keys problems. They are bent keys, loose cables, and a malfunctioning electronic switch. Loose Cable Untight cables could cause your mercedes ignition key to become stuck. This issue can be corrected by tightening your cable at the shifter. Make sure the nut on the end of the cable that connects to the shifter is tightened tightly so that the wire does not sag. This is especially important when you drive your Mercedes with the gear set to park since this causes the shifter to move the cable by one-sixteenth of an inch or so, which may cause the key to become stuck. The loose cable may cause the steering wheel lock to get stuck. This is an important security feature for your Mercedes. It stops potential thieves from pushing the car away, or using the steering wheel for navigation without having a key. The ignition switch on a Mercedes can be damaged and will need to replaced. This is an easy repair, but you must ensure that the new switch is compatible with the one that is currently in use. A faulty switch can result in a range of issues, including your car stalling, the lights not working, or the radio not working when you use your key. You can either bring your Mercedes to the repair shop or buy a new OEM Mercedes ignition button. Certain Mercedes ignition keys may get stuck even when the car is in park. This is a common problem in older Mercedes models and is typically caused by a loose cable connecting the locking mechanism in your ignition assembly to the shifter. Jump start is a great way to verify if the key is in good condition. This is a quick and easy way to test your battery. There are many other reasons that your ignition key for mercedes might not turn but the most common is a dead battery. This is a common problem for many different types of vehicles, and you should consult an automotive mechanic to determine the root of the issue. Electronic Switch The ignition switch is an important electronic component in a vehicle. As the key is turned it triggers various systems. The first position activates electrical accessories, while the second powers the ignition and fuel systems, and the third cranks the engine. The ignition key from Mercedes is unique to each car and, when you insert it into the ignition system, the electronic switch checks the key to make sure it's genuine. If it's valid the key sends an indication to the steering lock (if your vehicle has one) as well as other computer modules to unlock the door. This is a great method to help you start your car quickly and easily — and even if you lose your keys, you'll still be able to get in and out of the car without any trouble. However, while we like the convenience of our ignition switches, they also cause problems on the road. If your ignition switch is damaged it might not be able to provide enough power to your car’s critical electrical components , or it could be missing crucial connections that can prevent the car from starting. One of the main symptoms of a defective ignition switch is that it won't start your car in any way. This is typically due to the fact that the switch doesn’t move to the “on” position, which turns on ignition or fuel systems. A faulty ignition switch can cause the key to not go into the first position. This is why you can look for warning lights on the dashboard. Usually, these lights light up when you hit the ignition button. They fade when the car is running. In some instances, the dashboard lights will remain dark even after you turn the key to turn it on. The reason is that the ignition switch may temporarily provide power to the fuel pump and ignition systems when you switch the key to “on but it will shut off power as soon as the key is removed from the 'on' position. If you have any of these issues, your best bet is to seek a diagnosis from an auto mechanic. An expert will be able to determine if the switch is malfunctioning or not and also what steps to take to repair it. Steering wheel lock Mercedes ignition keys are designed with an anti-theft feature in mind. If someone attempts to steal your car and then moves the steering wheel without you being present, it will activate the steering lock and stop your vehicle from moving. This safety measure is designed to protect your family and you from being hurt during a crime. It also stops thieves from stealing your car. Sometimes, however, the lock won't unlock or it could be stuck in a locked position. It could be due to many reasons, such as broken or worn out ignition tumblers. You can purchase the replacement key or fix it yourself. The first step for fixing this is removing the ignition lock assembly. To accomplish this, you'll have to remove the plastic cover that is on the top of the ignition and then take out the fasteners that hold it in place. Once you've removed your ignition lock assembly, you'll be able to replace it with a new one. It is essential that the new component matches your car's parts. This will help ensure that the locking mechanism works perfectly when you install it. Also, ensure that the new ignition lock has been properly installed and that all clips are properly engaged. This is particularly important for older models. Another reason that could cause your ignition key for mercedes to be stuck in the locked position is wear and wear on the tumblers. mercedes replacement car keys is a common issue that should be addressed before the cylinder gets stuck or snaps off. To unlock a mercedes ignition key that's stuck in the locked position, apply a small amount of pressure to the key while turning it. It's best to do this slowly and gently, in order to avoid damaging the lock mechanism or the key. This is a quick and easy way to solve your issue. This is a great way to make sure the Mercedes ignition is functioning and secure so you can operate it whenever you need to. If you require additional assistance get in touch with Mercedes-Benz of Centerville near Kettering for more information or to set up an appointment. Tumbler When keys are inserted into the ignition of your Mercedes, it sends detailed infrared signal to the ignition switch to start the engine. The Mercedes will rotate when the infrared information is in sync with the ECU. This will start the engine of the Mercedes, and also power the entire system. If your Mercedes isn't able to start and it's not starting, it's time to look at your ignition lock tumbler. Sometimes the tumbler will just get worn out and require to be replaced. Other times, it will be unable to activate the electronic ignition switch. The most obvious sign that the Mercedes ignition lock tumbler could be damaged is when it doesn't move in the right direction. When this occurs, it can be a hassle as you might have to fight with the lock for a long time before you can start your car. A malfunctioning ignition tumbler could also cause the key to jam or completely block when it is inserted into the lock. It's important that you take your vehicle to your Mercedes specialist if this happens. They will examine and fix the ignition switch tumbler. A bent key or a worn-out key are also possible reasons behind why your Mercedes Benz ignition lock tumbler will not turn. If the bent end of your key is causing it to not turn then you can flatten it with a hammer and make it straight. Be sure to use a soft-headed hammer and that you tap very carefully. You can sometimes untangle your key from the ignition lock by gently jiggling the cylinder. This can be tricky so be cautious not to cause damage to your key while trying to loosen it. You can get a replacement keyed Mercedes-Benz ignition tumbler if it's damaged or is missing. These parts are made specifically to fit the original locks on your vehicle so you can be sure that they'll be able to be compatible with the system in your Mercedes.