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How to Fix a Mercedes Ignition Key That Won't Work A key for ignition that doesn't function is among the most frustrating things you'll have to face when driving an Mercedes. It could be a sign of other problems. There are three main causes for Mercedes Benz ignition keys problems. These are a bent key or cable that is loose, as well as a malfunctioning electronic switch. Loose Cable Untight cables can cause your Mercedes ignition key to become stuck. This issue can be resolved by tightening the cable around the shifter. The nut on the shifter end of this cable should be tightened in a way that there isn't any looseness in the cable. This is especially important if your Mercedes is in the park position. The shifter can move the cable by about 1/16 inch and this could cause your key to become stuck. This loose cable could also cause your key to be bind to the lock on your steering wheel. This is an important safety feature of your Mercedes. It helps prevent thieves from moving the car away or using the steering wheel for navigation it without having a key. The ignition switch on a Mercedes can be worn out and require to be replaced. This can be a fairly easy fix, but it is important to ensure that the new switch matches the one that is currently in use. A malfunctioning switch can cause your vehicle to stall and all lights to go out and the radio to stop working when the key is pressing. It is recommended to bring your Mercedes in for this repair or purchase the new OEM Mercedes ignition switch. Certain ignition keys of Mercedes can also become locked in place even when the car is in park. This is a common issue with older Mercedes models. It's typically caused by a loose cable that connects the locking mechanism of the ignition assembly to the shifter. Jump start is a great way to check if your key is in good condition. This is a good way to test the battery as well as an easy and cheap solution. There are a myriad of reasons your ignition keys for Mercedes may not turn. Most commonly, it's the battery is damaged or dead. This issue is common to all models and makes of cars. You should seek the advice of an automotive mechanic to identify the exact reason. Electronic Switch The ignition switch is an essential electronic component in a vehicle. It comes in a variety of positions, which provide power to various systems when the key is turned. The first position is where you can activate electrical devices, the second position turns on powers the ignition and fuel systems, and the third cranks the engine. The ignition key for the Mercedes is unique to each vehicle and when you insert it into the ignition system the electronic switch examines the key to ensure it's genuine. If it's valid the key sends a signal to the steering lock (if your car has one) and other computer modules to unlock the door. This is an excellent way for you to start your car quickly and easily. Even if mercedes vehicle security aftermarket misplace the keys, you'll be able be able to enter and exit your car with no trouble. However, as much as we like the convenience of our ignition switches, they also create problems for drivers. If your ignition switch is damaged it may not provide enough power to your vehicle's vital electrical components or could have a problem with the connections that could prevent the car from starting. A defective ignition switch can cause your vehicle to not start at all. This is typically due to the fact that the switch does not move to the “on” position, which activates ignition or fuel systems. A malfunctioning ignition switch could also cause the key to not be able to go into the first position. This is when you can check for warning lights on the dashboard. Usually, these lights come up when you hit the ignition button. They fade when the car is running. In certain instances, the dashboard lights will remain dark even after turning the key on. The reason for this is because the ignition switch will momentarily provide power to the ignition and fuel pump systems when you change the ignition key to 'on and then it will shut off power as soon as the key is removed from the “on” position. If you're experiencing any of these issues, the best choice is to seek out a diagnosis from an auto mechanic. A professional can tell you whether the switch is defective and what steps to do to repair it. Locking the Steering Wheel Mercedes ignition keys have an anti-theft feature. If someone tries to steal your car and turns the steering wheel without being present, it will activate the steering lock and stop the car from moving. mercedes sprinter spare key protects you and your family against being the victim of a crime. It also stops thieves from stealing your car. However, there are times when the lock won't unlock or is locked. This could be due to a variety of reasons, including worn or damaged ignition tumblers. You can purchase an alternate key or repair it yourself. The first step for fixing this is to take off the ignition lock assembly. To do this, you must remove the plastic cover that covers the ignition, and take out the fasteners. Once you have removed the ignition lock assembly you can replace it with another one. It is crucial to ensure that the new component is an exact match for the parts of your vehicle. This will ensure that the locking mechanism works correctly when you install it. It is also important to ensure that the new ignition lock is properly installed and that all clips are correctly engaged. This is especially crucial for older models. Another issue that can cause your ignition key for mercedes to get stuck in the locked position is wear and tear on the tumblers. This is a typical issue that needs to be addressed prior to the cylinder getting stuck or snaps off. To unlock the mercedes ignition keys that are stuck in the locked position, you should apply a small amount of pressure to the key while turning it. To avoid damaging the lock mechanism or key, you should take your time and do it slowly and gently. This is a fast and easy way to solve your problem. This is a great method to ensure the Mercedes ignition is functioning and secure to operate it whenever you need to. For more information or to set up an appointment, contact Mercedes-Benz Centerville near Kettering. Tumbler When a key is inserted into the ignition of your Mercedes it transmits detailed infrared data to the electronic ignition switch, which will start the engine. The Mercedes will turn when the infrared data is in sync with the ECU. This starts the car's engine and powers the various components inside it. When your Mercedes isn't starting and it's not starting, it's time to look at your ignition lock tumbler. In some instances the tumbler may get worn out and need to be replaced. Sometimes, it will not be able to turn on the electronic ignition switch. One of the most obvious indications that the Mercedes ignition lock tumbler is defective is that it won't turn into the proper position. This can be frustrating as you may need to fight the lock for a while before your car is able to turn. A malfunctioning ignition tumbler could also cause the key to become jammed or become completely blocked when it is inserted into the lock. If this occurs, it's important to bring the vehicle to the local Mercedes specialist to examine and repair the ignition lock tumbler. Other possible causes for an Mercedes Benz ignition lock tumbler that won't turn is bent keys or a damaged key. If your key is bent at the end, it's crucial to flatten the ends with a hammer and try to turn it back. Use an incredibly soft hammer and gently tap. You can sometimes remove your key from the ignition lock cylinder by gently jiggling it. This isn't easy, so make sure not to damage your key while trying to loosen it. If you've broken or missing Mercedes ignition lock tumbler, you can get an original keyed replacement from your local Mercedes-Benz dealer. These parts are made to fit your Mercedes' original locks, meaning they will work with your Mercedes system.