Here is the real deal. You do need the euroswitch however this breaks it down for you. Its a little confusing and tech heavy for some. However everything is nicely labelled in VWs.
http://gti-vr6.net/library/electrical/disabling_DRL_on_98.HTML(The old answer below)i am not a mechanic but i have played one on t.v. in all seriousness, the only way i know how to disable the pesky day time running lights is a euro fog switch. kind of hard to find and pretty expensive too. the euro-switch has two fog light functions and will disable those lights. how? i don't know..... what i do know is you can find the switch on eBay from time to time for around 60.00 bucks. the dealer charges in excess of 200 bucks if they have it. try the british eBay as well. good luck
To disable the running lights either unplug the relay to the fuse box. Also there is a fuse for this in the fuse box remove this and that will disable the lights.
Remove the fuse.
Press a button.
Our daytime running lights just stopped working on our 2007 Toyota rav4 bulbs???
How do you disable the DRLs on a 2005 Mitsubishi Endeavor?
Try a hammer.
slightly apply the E brake
To disable the daytime running lights on a 2008 Sequoia, turn the head light switch to the center position. It should show two headlights, one with an 'X' and a line between the two.
Hit 'em with a big hammer
press your ebrake one or two clicks and leave it on
Cheapest returnable answer is to remove the bulbs
Unplug daytime running light module. It is located on driver side just under the front of the truck.