Your Peugeot 508 doesn’t want to start? Have you tried all sorts of things? Battery, alternator, spare keys… And you feel like the issue originates from your immobiliser ? It is actually possible, actually that it is in question if your car no longer wants to start or stalls when starting without a reason. You want to disable the immobiliser on your Peugeot 508 ? You are on the good article, we have created this post to support you see more clearly and fix your concerns relating to this part. First, we will see how the immobiliser functions on your Peugeot 508, then the different methods to disable it.


How your immobiliser system functions on Peugeot 508

Before detailing the different solutions available to you, here is a short intro to show you the intent and functions of the immobilizer in your Peugeot 508. This electronic part came out 30 years ago and aims to prevent the theft of your Peugeot 508. Actually, 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 Peugeot 508 will go each time you place the key in the ignition, it checks that the code emitted by your key is actually the one expected by your immobilization box. It is only at this moment, that it will let you start. It is thanks to RFID technology (chip in the key) that this unit will work.

The different solutions to bypass the immobiliser on your Peugeot 508

Enter the code to turn off the immobiliser

First process, your key no longer enables your Peugeot 508 to start, you want to deactivate the immobiliser of your Peugeot 508, but first of all you should try this procedure to start it and take it to a garage check that you can not do a less important procedure to reestablish the normal start of your automobile. Actually, with your automobile you should have a spare key (which you should try and which should start your Peugeot 508), 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 automobile 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, repeat the procedure until you have entered the full code. This should let you start your Peugeot 508 without having to remove the immobiliser.

Fix your key at a key specialist or your car dealership

If even though a battery swap, different attempts to enter the immobiliser code on your Peugeot 508 still doesn’t work, it’s most likely your key that’s at issue. We can understand that you still want to bypass the immobiliser system from your Peugeot 508. Actually, your transponder must have been weakened or must have fallen off your key. To correct this issue, only solution, go to a key specialist (also available on the internet) or, at your car dealer who can restore your Peugeot 508 key. Depending on who you go to the repair should cost you about 100 euros if you still have a duplicate or your “code card” and about 350 euros at your car dealer if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your Peugeot 508.

Manually remove your immobilizer

Although you may be thinking to bypass the immobilizer from your Peugeot 508, this is not recommended at all for some reasons. First your Peugeot 508 would be much more vulnerable to theft attempts. Actually, without an immobiliser box, simply doing “the wires” may be enough to start it. Moreover to that, your insurance, in case of theft most likely won’t refund you if it finds out that the immobiliser on your Peugeot 508 has been removed, bypassed or deactivated. This if you still want to do it, some sites still give the methodology, we have made the choice not to disclose it, because it could help people with bad intentions.

If you need more guides on the Peugeot 508, go to our Peugeot 508 category.