Your Audi Q7 doesn’t start anymore and you understand it’s because of your immobilizer but you don’t know specifically how it works or how to find it? We will try to provide you with an answer in this article.
First of all, we will explain what this famous immobilizer is for and how it works on your Audi Q7.find-anti-start-code-audi-q7

Anti-start utility on your Audi Q7:

This one is of course used as an anti-theft protection. Indeed, it is programmed to be able to start your Audi Q7 exclusively if the key that has this code is inserted. We think of these films where thieves adjust a few wires under the dashboard to start the engine, which is impossible with the anti-start system.

Anti-start operation on your Audi Q7:

To put it simply, we have a transmitter and a receiver that function together to validate the operation and thus switch on the engine. The immobilizer provides the transmitter, and will therefore issue a code request when the key is inserted in your Audi Q7. Consider this transmitter as a doorkeeper who would ask for an entry code when someone knocked at the door.
This code request is provided to the key, which subsequently, sends a unique user code, specific to the start system, and if this code matches, then the anti-start will allow the engine start.
The operation is very simple. However, when mentionning double safety, we also mean potentially more possibilities of breakdowns or various failures unfortunately.
In the next paragraph, you will find the various breakdowns you could deal with on your Audi Q7.

Immobilizer failures:

There may be various motives that prevent your Audi Q7 from starting because of the immobilizer. First of all, incredibly, you’re not using the right key. It may seem trivial but it happens!
If you have the right key, you have two options left:

  • Option n1: The transmitter is involved, consequently the immobilizer. In this case, it is easy to establish if you have a duplicate key. If, with the two keys of your Audi Q7, you have the same problem, then it is the anti-start that is faulty and therefore must be replaced or disabled. Completing this task will cost less than replacing it, but your car will be more subjected to to theft and your insurance may not cover you if your car is stolen.
  • Option n2: The problem comes from the receiver, the key, which transponder has been broken. This can be replaced for less money by a professional than the anti-start system.

If you speak to your mechanic, he will obviously offer to tow your Audi Q7 and charge a high price for everything, he will not give you the code easily. For security reasons alone, it is legally impossible to send out the code to you. You must send your car.


  • – First try to determine where the failure on your Audi Q7 came from. Then act accordingly. It would be a shame to replace the entire immobilizer system when the key is defective.
  • – Make a quote at a garage and then consider an replacement at an online professional, which will often be more efficient and less expensive.

To find more tips on the Audi Q7, take a look at the Audi Q7 category.