Hi there!

I have an Audi A4 TDIe, with halogen daytime running lights, i have changed the main lights to a whiter bulb, but am looking to change the running lights to the blueish colour as the yellow could looks awful!

I cannot find ANYWHERE instructions on how to change the bulbs. I know there are 2 (correct me if im wrong!) in each headlamp, left and right. I have looked and can see a knob, but im not sure what these are for?!

Can anyone please explain the way to change the bulbs, and also if possible a good type of bulb to replace the origional.

Many Thanks,

Russell