Your Bmw Z4 doesn’t start anymore? Have you tried everything? Battery, alternator, spare keys… And you have the feeling that the problem originates from your immobiliser ? It is reasonably plausible, actually that it is in question if your car doesn’t want to start anymore or stalls when starting for no reason. You want to disable the immobiliser on your Bmw Z4 ? You are in the right place, we have created this post to support you see more clearly and resolve your problems related to this part. First, we will see how the immobiliser functions on your Bmw Z4, then the different techniques to disable it.
How your immobiliser system functions on Bmw Z4
Before describing the different alternatives available to you, here is a short intro to demonstrate the aim and operation of the immobilizer in your Bmw Z4. This electronic element appeared 30 years ago and aspires to prevent the theft of your Bmw Z4. Indeed, thanks to a transponder and an antenna (coil) integrated in the key, and, a immobilisation control box integrated in the ECU and a reception antenna on the neiman, your Bmw Z4 will go each time you place the key in the ignition, it checks that the code emitted by your key is actually the one required 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 alternatives to bypass the immobiliser on your Bmw Z4
Enter the code to turn off the immobiliser
First procedure, your key no longer allows your Bmw Z4 to start, you want to turn off the immobiliser of your Bmw Z4, but first of all you should try this technique to start it and take it to a garage examine that you can not accomplish a less important process to restore the normal start of your automobile. Indeed, with your automobile you should have a spare key (which you should try and which should start your Bmw Z4), but if you don’t have it you should at least have the “code card”, it includes 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 validate the digit and resume, duplicate the process until you have entered the entire code. This should allow your Bmw Z4 to start without having to remove the immobiliser.
Fix your key at a key specialist or your car dealer
If despite a battery swap, different attempts to enter the immobiliser code on your Bmw Z4 still doesn’t want to start, it’s almost certainly your key that’s at issue. We can understand that you still want to bypass the immobiliser system from your Bmw Z4. Indeed, your transponder must have been weakened or must have fallen off your key. To resolve this problem, only option, go to a key specialist (also available on the internet) or, at your car dealership who can fix your Bmw Z4 key. Depending on 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 Bmw Z4.
Manually remove your immobilizer
Although you may be tempted to bypass the immobilizer from your Bmw Z4, this is not recommended at all for some reasons. First your Bmw Z4 would be much more vulnerable to theft attempts. Indeed, without an immobiliser box, simply doing “the wires” may be enough to start it. Furthermore to that, your insurance, in case of theft most likely won’t refund you if it knows that the immobiliser on your Bmw Z4 has been removed, bypassed or deactivated. This if you still want to do it, some sites still give the process, we have made the choice not to disclose it, because it could help people with bad intentions.
If you want more guides on the Bmw Z4, go to our Bmw Z4 category.
