Mercedes ignition switch repair – immobilizer data transfer

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A faulty Mercedes ignition switch (EIS) presents symptoms similar to an ESL failure: instrument cluster lights fail to illuminate, and the engine does not start. Diagnosing the issue can be challenging; customers often attempt diagnosis using standard scanners, which do not always pinpoint the actual fault. Consequently, a faulty ignition switch is frequently discovered only during the process of programming an ESL emulator. Sometimes, the issue stems from a defective ignition key. All these factors can be verified using a test bench. Failures are usually caused by electronic component corrosion or mechanical damage due to wear and tear. In some instances, repair may not be the best course of action if the overall condition of the EIS is poor. Since every case is unique, we always strive to find the optimal solution for our customers. The quickest fix for a faulty EIS is cloning or data transfer: data is read from the original ignition switch and written to a donor unit, ensuring that all original keys remain functional.

You can order this service via the eBay app 👉

Ignition switch data cloning for Mercedes only with FBS 3 immobilizer.
Please contact us via message before placing an order, as we may require additional information.
How it works
To perform this service, we require the following:
1) The original EIS module (ignition switch) from your Mercedes W204 and the original working keys (if available).
Note: After cloning the original ignition switch, only the original keys will work.
Only those that worked with the original ignition switch.
If you do not have working original keys, we can program new keys for an additional fee.
2) Replacement EIS module.
3) All EIS modules must be pre-marked as both original and replacement.
4) Place an order for the ignition switch data transfer cloning service.
And we will send you a message with instructions and the address to which you need to send us the parcel.
5) Securely package the original EIS module (ignition switch) and keys (if available), as well as the replacement EIS module, in bubble wrap and a cardboard box.
Be sure to include your eBay ID and contact information in the package.
After shipping, please provide us with the shipping company name and tracking number.
We usually fulfill your order on the day we receive it and ship it back to you the next business day.
If you have any questions, please send us a message. We will respond as soon as possible.

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