Your Mercedes Benz M Class doesn’t want to start? Have you tested everything? Battery, alternator, spare keys… And you feel like the issue comes from your immobiliser ? It is actually possible, in fact that it is in question if your vehicule no longer wants to start or stalls when starting without a reason. You want to disable the immobiliser on your Mercedes Benz M Class ? You are on the good article, we have written this post to help you see more clearly and solve your trouble related to this part. First, we will see how the immobiliser functions on your Mercedes Benz M Class, then the different techniques to disable it.
How your immobiliser system functions on Mercedes Benz M Class
Before detailing the different alternatives available to you, here is a short intro to describe the goal and operation of the immobilizer in your Mercedes Benz M Class. This electronic element was invented 30 years ago and intends to prevent the theft of your Mercedes Benz M Class. 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 Mercedes Benz M Class will go each time you place the key in the ignition, it controls that the code emitted by your key is in fact the one expected by your immobilization box. It is only at this moment, that it will allow you to start. It is thanks to RFID technology (chip in the key) that this device will work.
The different alternatives to bypass the immobiliser on your Mercedes Benz M Class
Enter the code to turn off the immobiliser
First procedure, your key no longer allows your Mercedes Benz M Class to start, you want to disable the immobiliser of your Mercedes Benz M Class, but first of all you should try this technique to start it and take it to a garage check that you can not perform a less significant operation to reestablish the normal start of your automobile. In fact, with your automobile you should have a spare key (which you should try and which should start your Mercedes Benz M Class), 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, replicate the operation until you have entered the whole code. This should let you start your Mercedes Benz M Class without having to remove the immobiliser.
Fix your key at a key specialist or your car dealer
If in spite of a battery change, different attempts to enter the immobiliser code on your Mercedes Benz M Class still doesn’t want to start, it’s likely your key that’s at issue. We can understand that you still want to bypass the immobiliser device from your Mercedes Benz M Class. In fact, your transponder must have been injured or must have fallen off your key. To correct this issue, only option, go to a key specialist (also available on the internet) or, at your car dealership who can fix your Mercedes Benz M Class key. Based 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 dealership if you have no support and you want a new functional key, it will avoid you having to remove the immobilizer from your Mercedes Benz M Class.
Manually remove your immobilizer
Although you may be thinking to bypass the immobilizer from your Mercedes Benz M Class, this is not recommended at all for some reasons. First your Mercedes Benz M Class would be much more vulnerable to theft attempts. In fact, 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 acknowledges that the immobiliser on your Mercedes Benz M Class has been removed, bypassed or deactivated. This if you still want to do it, some websites online still give the method, we have made the choice not to disclose it, because it could help people with bad intentions.
To find more tips on the Mercedes Benz M Class, take a look at the Mercedes Benz M Class category.
