How to Fix a Mercedes Ignition Key That Won't Work
One of the most stressful things to deal with when you own a Mercedes is an ignition key that does not work. It can be an indicator of other issues, too.
There are three primary causes for Mercedes Benz ignition key problems. The most common causes are a bent key, loose cables, and malfunctioning electronic switches.
Loose Cable
The loose cables can cause the ignition key of your Mercedes to get stuck. This problem can be solved by simply tightening the cable at the shifter.
The nut on the shifter end of this cable should be tightened to ensure that there is no slack in the cable. This is particularly important if your Mercedes is in park position. The shifter will move the cable about 1/16 inch which could cause your key to get stuck.
The loose cable could cause your key to be bind to the steering wheel lock. This is an essential safety feature of your mercedes since it can stop potential thieves from pushing the car away or using the steering wheel to steer the vehicle without the key.
A mercedes ignition button can be damaged and will need to be replaced. This is an easy fix, but it is important to make sure that the new switch matches the one that is currently in use.
A malfunctioning switch can cause your car to stop and all lights to go out and the radio stop working when the key is pressed. You can either bring your Mercedes in for repair or purchase a new OEM Mercedes ignition button.
Certain ignition keys of Mercedes can also become locked in place even when the car is in park. This is a problem that is common in older Mercedes models and is typically caused by loose cables that connect the locking mechanism within your ignition assembly to the shifter.
If you have a key that's locked in its place, try a jump start and try to resolve the issue. This is a good way to test the battery and it's a quick and cost-effective solution.
There are a variety of other reasons that your mercedes ignition keys might not turn but the most common is the battery is dead. This is a common issue for all models and makes of vehicles. You should consult an automotive mechanic to determine the cause.
Electronic Switch
The ignition switch is a crucial electronic component in a vehicle. It has a variety of positions that power on different systems as the key is turned. The first one activates electrical devices, the second position turns on activates the ignition and fuel systems, and the final cranks the engine.
Each mercedes ignition keys is unique. When you insert the key into the ignition of your vehicle the electronic switch checks that it's valid. If it's valid the key sends an indication to the steering lock (if your car has one) and other computer components to unlock the door. This is a great way to allow you to start your vehicle quickly and easily- and even if you have lost your keys, you'll still get in and out without any trouble.
However, as much as we love the convenience of our ignition switches, they also create problems for drivers. If the ignition switch malfunctions, it may not be supplying enough power to your vehicle's essential electrical components, or it may have a problem with the connections that could keep your vehicle from starting.
A malfunctioning ignition switch may cause your vehicle to not start at all. Often, this is because the switch isn't in the "on" positionthat is the one that powers on fuel and ignition systems.
A malfunctioning ignition switch may cause the key to not move into the first position. This is when you can look for warning lights on the dashboard. Usually, these lights light up when you press the ignition button and then dim once the vehicle is running.
In some cases, the dashboard lights will remain dark even after turning the key on. The reason for this is that the ignition switch will temporarily provide electricity to the fuel pump and ignition systems if you turn the key to 'on however it will shut off power when the key is removed from the 'on' position.
You should consult an auto mechanic when you experience any of these problems. A professional can tell you whether the switch is malfunctioning or not and what steps to take to correct it.
Locking the Steering Wheel
Mercedes ignition keys have been designed with an anti-theft feature in mind. If someone breaks into your vehicle and manages to move the steering wheel when you're not there, it will activate the locking mechanism on the steering wheel and stop the vehicle from moving.
This safety measure protects you and your family against being victim to an act of crime. It also prevents thieves from stealing your vehicle.
Sometimes, however, the lock won't open or is locked. This can happen for many reasons, such as damaged or worn out ignition tumblers. You can purchase an alternate key or repair it yourself.
The first step for fixing this is to remove the ignition lock assembly. To do this, remove the plastic cover that covers the ignition, and remove the fasteners.
Once you've removed your ignition lock assembly, you'll be able to replace it with a brand new one. It is essential to make sure the new component is an exact match for the car's components. This will ensure that the locking mechanism functions properly when it is reinstalled.
Also, make sure that the new ignition lock is correctly installed and that all of the clips are properly engaged. This is especially important for older models.
Another issue that can cause your mercedes ignition key to stop working in the locked position is wear and tear on the tumblers. This is a common problem 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, try applying a bit of pressure to the key while simultaneously turning it. To avoid damaging the lock mechanism or the key it is best to apply the pressure slowly and gently.
This is a simple procedure that will solve your issue in no time. It's also a great option to ensure that your Mercedes ignition is secure and ready to drive at any time you require it. If you require further assistance call Mercedes-Benz of Centerville near Kettering for more details or to make an appointment.
Tumbler
When the key is inserted into the ignition of your Mercedes, it sends detailed infrared signal to the ignition switch, which will start the engine. As the infrared data matches what's stored in the ECU, the Mercedes will begin to turn. This triggers the car's engine, and also powers the numerous systems inside it.
When your Mercedes isn't starting then it's probably time to look at your ignition lock's tumbler. Sometimes, the tumbler may wear out and will need to be replaced. In other cases, it could be unable to engage the electronic ignition switch.
The most obvious indication that your Mercedes ignition lock tumbler could be malfunctioning is when it fails to rotate in the proper 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 lock tumbler could cause the key to jam up or become completely blocked when it is put into the lock. If this occurs it's imperative to take your vehicle to a local Mercedes specialist to have them examine and service the ignition tumbler of the lock.
replace mercedes key for a Mercedes Benz ignition lock tumbler that isn't turning are the possibility of a bent or worn-out key. If your key has a bent end, it's crucial to flatten the end with the hammer and attempt to turn it over. Use an easy-headed, soft hammer and tap it carefully.
Finally, if your key is stuck in the ignition lock cylinder you can sometimes get it out by gently jiggling the steering wheel. This can be a challenge, so make sure you don't harm your key when trying to untangle it.
If you have a broken or missing Mercedes ignition lock tumbler, you can purchase an original keyed replacement from your local Mercedes-Benz dealer. These parts are designed to fit your Mercedes' original locks, meaning they can be used with your Mercedes system.