Can you turn the key on a Mercedes EIS?
After we have repaired your EIS module, you will be able to insert the key, turn the key and start the vehicle with no troubles at all.
Why is my Mercedes Benz EIS not working?
The key has a sequential code to ensure the vehicle is not stolen. Mercedes Benz owner may face the problem that the key no longer turns in the ignition.This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
How does the Mercedes EIS ESL ignition system work?
The Mercedes EIS ESL Electronic Ignition Switch and Electronic Steering Lock system exists to make sure your car isn’t stolen. Your key has a sequential code, unique to your vehicle, and when inserted into the ignition, your car runs a series of tests, to make sure it’s the right key.
Can You remanufacture an existing Mercedes EIS module?
We can remanufacture your existing EIS Module unit and save you a lot of money. We thoroughly test & repair all EIS modules to ensure we locate the faults and rectify them completely. When the unit is returned to you, you will not be required to reprogram or re-calibrate the unit – simply plug & play.
After we have repaired your EIS module, you will be able to insert the key, turn the key and start the vehicle with no troubles at all.
The key has a sequential code to ensure the vehicle is not stolen. Mercedes Benz owner may face the problem that the key no longer turns in the ignition.This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
Is the EIS module factory fitted to all Mercedes?
The EIS module is factory fitted to almost all models and we’re getting units sent in right across the board from C-Class C220 Mercedes to ML’s and E350 Mercedes. You can expect the EIS module to be supported and installed on the following Chassis list:
Can a steering lock be reset with an EIS?
Keys can be made from the 2nd MCU that is inside. It is a PITA to be removed, but sometimes that saves the day. Steering lock has 2 Motorola MCUs inside and is resetd simply, after that it becomes universal and works with every EIS.
The EIS module is factory fitted to almost all models and we’re getting units sent in right across the board from C-Class C220 Mercedes to ML’s and E350 Mercedes. You can expect the EIS module to be supported and installed on the following Chassis list:
Can a bad EIS-EZs module be repaired?
Mercedes dealers don’t repairer a bad EIS-EZS module. They will recommend that the module be replaced. That’s not necessarily the only solution, see alternatives below. These symptoms can very well be caused by a defective key. If you have a spare key try to see if you are experiencing the same symptoms with the other key.
How does the ESL system work on a Mercedes Benz?
The ESL system will then look to see if the Engine ECU (Electronic Control Unit) agrees that this is the authorised key being used. – Then and only then, when all three control units agree it is the correct authorised key being used, will it allow the “Turn & Start” function to be activated.
Why did my Mercedes EIS ignition switch fail?
Mercedes-Benz ignition switch (often referred as immobilizer module) can become faulty and in some cases due to user error. For example, some common reasons why the ignition module failed are: Connecting jump starting cables while key is in the ignition. During any of the above scenarios, the EIS-EZS may lose its memory.
What to do if your Mercedes key won’t turn?
If you have this problem you will have to install a new / virgin EIS. You can not install a used unit because the EIS has to be paired / married to the car using Mercedes-Benz Star Diagnostic Software. They key itself may be the reason why the car doesn’t start. The key may open the doors, but it will not start the car.
What causes a Mercedes Benz ignition to not turn?
Mercedes EZS EIS Ignition Switch Problem, Cause, Solution. A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
Why is my Mercedes EZs EIS ignition not working?
The only issue here is that if you can’t turn on the ignition, you can’t power on the OBD2 port and the iCarsoft MB II scanner. If the ignition turns on intermittently, consider yourself lucky and scan for codes. Hopefully, there are fault codes that will point you to the problem. Diagnosing Mercedes ignition problems isn’t a simple DIY job.
Why are my Mercedes Benz ignition keys not working?
Some of the Mercedes Benz ignition key problems are caused by a defective key, a dead or dying battery, failed Electronic Ignition Switch or EIS, faulty shifter module, or a bad steering wheel module. Mercedes Benz ignition key problems may include key not turning in on ignition, car not starting, and issues in inserting and removing keys.
Can a Mercedes Benz EIS be installed on a used car?
You can not install a used unit because the EIS has to be paired / married to the car using Mercedes-Benz Star Diagnostic Software. They key itself may be the reason why the car doesn’t start. The key may open the doors, but it will not start the car.
Why does my Mercedes Benz not turn on?
A problem that Mercedes-Benz owners may face is the key no longer turns in the ignition. This issue is often caused either by a defective key, bad shifter module, a failed Electronic Ignition Switch (EIS) also known as the EIS-EZS or a bad steering lock module (ESL).
How do I Sync my Mercedes fob to my car?
To synchronize a Mercedes-Benz key to your car all you need to do is insert the key into the ignition for a few seconds. This works in most cases but every now and then you may need to follow further instructions to synchronize your Mercedes key fob remote with your car.
What is the electronic ignition switch on a Mercedes?
The Mercedes EIS (Electronic Ignition Switch) system is great in theory, the hardware being the switch is like a small socket in the dash to insert your key into – only, it is not a traditional looking key.
Why is my Mercedes EIS module not working?
It is very unfortunate but also a very common problem as there are many reasons as to why these units are failing – most are due to human error. Some of the most common reasons are listed below: All of the above can cause memory loss to the EIS module and it cannot be repaired or re-flashed using the Mercedes STAR diagnostic system.
If you have this problem you will have to install a new / virgin EIS. You can not install a used unit because the EIS has to be paired / married to the car using Mercedes-Benz Star Diagnostic Software. They key itself may be the reason why the car doesn’t start. The key may open the doors, but it will not start the car.
What to do if your Mercedes ignition switch is not working?
If you have a spare key try to see if you are experiencing the same symptoms with the other key. If the other key works, keep using it for a couple of weeks to verify that the issue is really the key and not the EIS. Try scanning your Mercedes-Benz for fault codes. Ideally using a Start Diagnostic Scanner.