Your Audi Q5 doesn’t start anymore and you know it’s because of your immobilizer but you don’t know exactly 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 Q5.find-anti-start-code-audi-q5

Anti-start utility on your Audi Q5:

This one is of course used as an anti-theft protection. Indeed, it is programmed to be able to start your Audi Q5 exclusively if the key containing this code is inserted. We keep in mind these films where thieves adjust a few wires under the dashboard to start the engine, which is out of the question with the anti-start system.

Anti-start operation on your Audi Q5:

To put it simply, we have a transmitter and a receiver that work together to validate the operation and as a result switch on the engine. The immobilizer has the transmitter, and will therefore issue a code request when the key is inserted in your Audi Q5. Consider this transmitter as a doorkeeper who would ask for an a way in code when someone knocked at the door.
This code request is sent to the key, which subsequently, sends a unique user code, specific to the start system, and in the event this code matches, then the anti-start will let the engine start.
The procedure 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 experience on your Audi Q5.

Immobilizer failures:

There may be various reasons that prevent your Audi Q5 from starting because of the immobilizer. First of all, stupidly, you’re not using the right key. It may seem not important but it happens!
If you have the right key, you have two options left:

  • Option n1: The transmitter is involved, consequently the immobilizer. Usually, it is easy to establish if you have a duplicate key. If, with the two keys of your Audi Q5, you have the same difficulty, then it is the anti-start that is faulty and therefore must be replaced or disabled. Doing so will cost less than replacing it, but your car will be more exposed to theft and your insurance may not cover you if your car is stolen.
  • Option n2: The difficulty comes from the receiver, the key, which transponder has been damaged. This can be changed 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 Q5 and charge a high price for everything, he will not give you the code quite readily. For security reasons alone, it is legally impossible to transmit the code to you. You must send your car.


  • – First try to identify where the failure on your Audi Q5 came from. Then act accordingly. It would be a pity to change the entire immobilizer system when the key is defective.
  • – Make a quote at a garage and then consider an alternative at an online professional, which will often be more efficient and less expensive.

Whenever you have any additional questions about the Audi Q5, do not hesitate to consult our Audi Q5 category.