Sunday - Saturday 8 am - 9 pm

When it comes to your car, you want to make sure that it’s always ready for anything. And one of the most important components you need to keep an eye on is the ignition switch.

The ignition system in your vehicle is made up of two parts – the ignition lock cylinder and the ignition switch. The switch is located on the steering column just behind the lock cylinder. These two parts work together to turn on the vehicle and start it up.

You can find more information about your vehicle’s system by checking your owner’s manual or asking your mechanic for help.

Ignition switches usually have three positions that provide power to different systems as the key is turned. Most of the time, the first position will activate electrical accessories, the second position will power on the fuel and ignition systems, and the third position will crank the engine.

If you own a Mercedes, chances are you’re probably overall pleased with it; however, just like any other car or machine, things tend to wear out and require replacement over time. That’s why it’s important to know what to do when your Mercedes starts to show signs of wear and tear—and how to keep your vehicle in good shape for as long as possible.

If you’ve recently purchased a Mercedes, you may be wondering why the ignition key doesn’t work. After all, that’s what it’s there for: to start up the car.

Unfortunately, some Mercedes drivers have reported issues with their ignition keys in the past. Although, with recent developments in technology, ignition keys have begun to be phased out and replaced with keyless entries, remotes, and key fobs.

If you think your Mercedes key ignition is not working properly, but you can’t make sure if it is actually troubling, then here are a few symptoms to know that show that your Mercedes is actually having trouble with the ignition key. 

Common Symptoms of a Faulty Ignition Key in a Mercedes

1. Car stalls while driving

If you’re having problems with your ignition system, it’s important to know that there are multiple symptoms of a problem. Sometimes, the most frustrating thing about your car is when it will just stop running. It’s not a matter of if your car will stop running. And if you’re like most drivers, you’ve had to deal with this problem more than once.

What causes your car to suddenly stall? The most common reason is a failed ignition switch or a faulty alternator. If either of these things fails while you’re driving, your engine will cut off power from the ignition and fuel systems, which causes it to stall.

Depending on what issue was causing the issue, however, your Mercedes may or may not restart a short while later.

2. Issues turning or removing the key

If the ignition key on your car gets stuck, it could be a sign of a worn-out ignition switch. This is a common issue with all cars, but in some cases, it can become so severe that the engine will continue running even after you’ve removed the key.

If your vehicle’s ignition switch has been acting up lately and won’t reset properly or cause your key to get stuck, it’s probably time to replace it! The key isn’t connected to the switch properly, causing unnecessary wear and tear on both components. A worn-out switch can also lead to other problems with your car’s engine—especially if you’ve already replaced a starter or found other issues with your vehicle’s electrical system.

When your car starts and then suddenly stalls, it could be a sign that the ignition switch is failing.

The ignition switch is what helps to provide power to your fuel and ignition systems when you turn on your vehicle. 

If the ignition switch fails in one position, it could cause the car to start and then stall immediately. 

This switch is responsible for cutting off power to the fuel and ignition systems if the engine fails to start. Without it, the engine would continue to draw fuel and create a spark, which could cause a fire.

If this is happening to you, don’t ignore it! A professional technician can help determine if your ignition switch should be replaced.

3. Issues powering on the accessories

The ignition switch is an electrical device that allows you to turn your car on and off. When the key is inserted into the ignition, it powers the car’s engine and accessories. If the key is turned to the “acc” position and none of the accessories are powering on, this could be a sign of a faulty ignition switch or lock cylinder.

If you’re experiencing any of the above symptoms, it’s highly recommended that you bring your vehicle in to get it properly diagnosed by a professional. Fuse and wiring issues can oftentimes be the culprit, so it’s best to rule those out as potential causes.

4. The engine does not start

If your car isn’t starting, it could be due to a bad ignition switch. The ignition switch transfer power to the engine controls, starter motor, and ignition controls. The engine may not receive the power which is required to start up if the ignition switch isn’t working properly. An engine not starting could be one of them.

If you’re experiencing this issue, it’s best to have an expert at your disposal who can diagnose the problem and get your car back on the road as soon as possible!

Wrapping Up

When you’re driving your Mercedes Benz, you want it to be as reliable and safe as possible. That’s why it’s important that you take care of the basics, like making sure that the ignition key is working properly. If your ignition key is not working properly, you may experience any number of problems, from having difficulty starting the vehicle to not being able to turn on the windshield wipers or door locks.

what we do

We'll make your car feel brand new,
visit our workshop today.

Book an Appointment

    Get free

    Appointment

    Open Sunday - Saturday

    8 am - 9 pm