How to change the ESL on a Mercedes EIS?

How to change the ESL on a Mercedes EIS?

First when you insert your remote key in the EIS switch (Mercedes EIS or EZS), it must be recognized by the Mercedes EIS and the ESL. Only then will the EIS unlock the steering shaft, the ignition will switch on and the car will successfully start.

What does the sequential code on the Mercedes EIS key mean?

The key has a sequential code to ensure the vehicle is not stolen. The vehicle will instantaneously carry out a sequence of test handshakes to ensure the correct key has been inserted.

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.

Can a Mercedes EIS steering lock be replaced?

As for the Electronic Steering Lock or ESL, we can provide a permanent replacement that you only need to do once. We’ll replace the steering lock with an emulator. It bolts into the exact location as the lock.

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 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).

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.