Why is my spare key not working on my Mercedes?
But if the spare key doesn’t start your car, the problem is likely due to other factors, such as an electronics issue with the car itself: 1 Battery 2 Steering lock (common in C-Class, w204 chassis Mercedes) 3 DAS (Driver Authorization System) ESL (Electronic Steering Lock) EIS (Electronic Ignition Switch) ME (Motor Electronics Computer)
How do you start a Mercedes with a dead key?
The alarm will go off when you manually open the driver’s door. Don’t worry! The alarm should stop as soon as you insert the key into the ignition as described in the next few steps. Next, remove the Start / Stop button from the ignition lock. You can quickly pull it from the ignition. The Start/Stop button will pop out.
Do you need an ignition key for a Mercedes?
In older Mercedes models, an ignition key may be the primary method of starting, entering, and locking your car. Newer Mercedes models utilize keyless entry remotes or key fobs.
Why does my Mercedes C230 sport not start?
2007 C230 sport. I had same issue. The same fault. What I did was take my finger and put it where the key switch goes. Press into switch and slightly turn to the right as if starting. Remove finger and now put your key in and turn. The switch is spring toggled when key is in place. Sometimes the spring doesn’t reset.
Is there a problem with my Mercedes-Benz C220 CDI?
Hy Have same problem c220 Cdi 2002 auto car sometimes starts but sometimes I put key in and nothing happens no noise no crank nothing and I have to hold the key in start position for 5 min then car starts.got it tested and I’ve been told the ecu doesent correspond with starter sometimes!
Why does my Mercedes Benz W204 not start?
The loud clicking sound means that the ignition system is being triggered on, but there is no power to crank the engine. Depending on the age and condition of the battery, you must replace or just jump start your battery. Figure 1. The battery in the w204 is located by the circle where the red cover is.
Why is my Mercedes C class key not working?
The main symptoms are the key won’t unlock the doors or start the car. You may see a blinking red light when you press a button. Insert the key and turn it to the “ON” position, then press and release the lock button on the key. Press and hold the remote’s unlock button.
Why is my key fob on my W204 not working?
Here’s a look at some common reasons why your w204’s key fob isn’t working. Some owners report an error message, such as “key not detected,” or limited range when the key batteries are dead or very low. Fortunately, changing the key battery is simple and can be accomplished by using the valet key that comes included with the fob.
Why does my 1999 ML 320 door not open?
If all is well the alternator may be the culprit, disconnect the alternator from the + of the battery and connect the ammeter, if there is a current there then you have drain in the alternator. Did anyone ever got a solution. My 1999 ML 320 doors wont open manually. The battery is flat. Key does not turn at all. Please help.
Why does my Remote key not unlock the door?
When the physical key can lock or unlock the door, be sure that the mechanism of the locks is fine. There could be an electrical issue that prevents the fob from connecting to the door’s receiver sensor. These are mostly the reasons and troubleshooting options when a remote key won’t unlock car door.
Why is the battery dead on my Mercedes?
After being away with work, the car has sat under snow & subjected to a cold climate for some time. The battery is dead, (ive checked the keyfob) and the blade key doesnt work on the drivers door or the boot. Ive read techniques on how to open the boot using the blade key, they arent working – all im doing is rotating the barrel.
But if the spare key doesn’t start your car, the problem is likely due to other factors, such as an electronics issue with the car itself: 1 Battery 2 Steering lock (common in C-Class, w204 chassis Mercedes) 3 DAS (Driver Authorization System) ESL (Electronic Steering Lock) EIS (Electronic Ignition Switch) ME (Motor Electronics Computer)
If all is well the alternator may be the culprit, disconnect the alternator from the + of the battery and connect the ammeter, if there is a current there then you have drain in the alternator. Did anyone ever got a solution. My 1999 ML 320 doors wont open manually. The battery is flat. Key does not turn at all. Please help.
Is there a way to manually unlock a Mercedes door?
He’s saying that if you have a trailer connector fitted, you could apply 12 V to it in order to unlock your doors without removing the wheel or using the mechanical key. Then you could simply pop the hood and charge it the normal way.
What should I do if my Mercedes FOB is not working?
If you need a replacement battery note that Mercedes-Benz uses CR2025 battery type. Ensure you have new batteries in your key fob. Next, look carefully at your Mercedes-Benz key. When you press the button on your key you should see a small RED led light.