How to disable the immobiliser seat leon ?

Your seat leon doesn’t want to start? Have you analyzed everything? Battery, alternator, spare keys… And you have the feeling that the trouble originates from your immobiliser ? It is actually possible, actually that it is in question if your automotive doesn’t want to start anymore or stalls when starting without a reason. You want to disable the immobiliser on your seat leon ? You are in the right place, we have made this content to help you see more clearly and resolve your concerns linked to this element. First, we will see how the immobiliser works on your seat leon, then the different ways to disable it.

How your immobiliser system works on seat leon

Before detailing the different choices available to you, here is a short intro to show you the purpose and functions of the immobilizer in your seat leon. This electronic part was invented 30 years ago and aims to prevent the theft of your seat leon. In fact, thanks to a transponder and an antenna (coil) included in the key, and, a immobilisation control box included in the ECU and a reception antenna on the neiman, your seat leon will go each time you insert the key in the ignition, it checks that the code emitted by your key is actually the one asked by your immobilization box. It is only at this moment, that it will allow you to turn on your car. It is thanks to RFID technology (chip in the key) that this unit will work.

First methodology, your key no longer permits your seat leon to start, you want to deactivate the immobiliser of your seat leon, but first of all you should try this technique to start it and take it to a mechanic examine that you can not accomplish a less important process to restore the normal start of your vehicle. In fact, with your vehicle you should have a spare key (which you should try and which should start your seat leon), but if you don’t have it you should at least have the “code card”, it contains the start code. Thanks to this code, you will still be able to start your vehicle by entering it manually. To do this, turn on the ignition, use your centralized button to enter the digits, several quick presses (example: 2 for digit 2) then a stop of one and a half seconds to confirm the digit and resume, replicate the process until you have entered the full code. This should enable you to start your seat leon without having to remove the immobiliser.

Repair your key at a key specialist or your car dealership

If in spite of a battery change, several attempts to enter the immobiliser code on your seat leon still doesn’t want to start, it’s most likely your key that’s at issue. We can understand that you still want to bypass the immobiliser system from your seat leon. In fact, your transponder must have been injured or must have fallen off your key. To fix this trouble, only solution, go to a key specialist (also available on the internet) or, at your car dealership who can fix your seat leon key. Determined by who you go to the repair should cost you about 100 euros if you still have a copy or your “code card” and about 350 euros at your car dealership if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your seat leon.

Manually remove your immobilizer

Although you may be thinking to bypass the immobilizer from your seat leon, this is not recommended at all for different reasons. First your seat leon would be much more vulnerable to theft attempts. In fact, without an immobiliser box, simply doing “the wires” may be enough to turn your car on. Moreover to that, your insurance, in case of theft most likely won’t refund you if it finds out that the immobiliser on your seat leon has been removed, bypassed or deactivated. This if you still want to do it, some sites still give the method, we have made the choice not to disclose it, because it could benefit people with bad intentions.

Whenever you have any further questions about the seat leon, do not hesitate to consult our seat leon category.