Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Volkswagen Golf Key Warning Light Flashes

Model: Volkswagen Golf MK 5, Golf 5, Golf V - Years 2003-2008
Part: Key

If you have a Volkswagen and the immobiliser light (yellow with a key symbol) is flashing, there could be several causes. The first (and most likely) is that you need to change the battery in the key itself. To do this, refer to the video: remove the top part of the key using a flat screwdriver, then open the central body. At this point, it will be easy to slide out the small battery (you may use the same flat screwdriver to help) and insert the new one. Reassemble everything by first replacing the central body and then the top part: just snap the various pieces back together. If the cause was not the key battery, it means there is a problem with the control unit: this can happen especially if there has just been some specific work done, for example, connecting your insurance's satellite navigation system.

Updated on 10 April 2026 by ScegliAuto

Video tutorial

Related tutorials

How to solve the problem with the immobilizer of the Volkswagen Golf
How to solve the problem with the immobilizer of the Volkswagen Golf
Volkswagen Golf (1997-2003 / Golf IV, MK 4, Golf 4) Today we will see the instructions that allow us to solve any problems with the immobilizer of the Volkswagen Golf. The immobilizer is an electrical …
How to Disable the Immobiliser on the Volkswagen Golf?
How to Disable the Immobiliser on the Volkswagen Golf?
Volkswagen Golf (1997-2003 / Golf IV, MK 4, Golf 4) To disable the immobiliser on the Volkswagen Golf, connect a diagnostic tool to the vehicle's OBD port: this will be located at the bottom left of th…
How to programme the key and immobiliser of the Volkswagen Golf
How to programme the key and immobiliser of the Volkswagen Golf
Volkswagen Golf (1997-2003 / Golf IV, MK 4, Golf 4) Today, we will look at the instructions that will allow you to programme the key and immobiliser of the Volkswagen Golf. To programme the key and rem…

Other guides you may be interested in

How to Replace the External Wing Mirror on a Ford C MAX

In the event of a breakage, it will be necessary to replace the external wing mirror on the 2011 Ford C MAX. This operation is easily performed independently. Start by removing the internal cover of the mirror with a plastic lever. Then, use a socket wrench to remove the securing pins. Once the pins are removed, you can take off the mirror, but not before disconnecting the power connectors. Then proceed to fit the new mirror. First, connect the connectors and then secure the mirror to its housing with the pins. Refit the plastic cover and test the operation of the electric mirror using the controls.

Watch the video!


by ScegliAuto

More videos