On early Touaregs the DRLs are your dipped headlights.
You should be able to turn them on yourself using the scrolling wheel and buttons on the steering wheel and looking through the menus.
My 2003 ran with those for the 8+ years I had it though I did convert the headlights to HIDS as the standard halogens are so bad on dark wet nights that they are bloody dangerous.
Go to HIDS4U
http://www.hids4u.co.uk/ and get a set.
You need H7 PROJECTOR, 5000K, 55 Watt, CANBUS error free.
Use STRATHY at the checkout as the discount code for 25% off.
The menus include other tricks including auto door locking after moving off, for example.
Also do take time NOW to read the link in my signature on buying a used Touareg. You will learn a lot and possibly save money too.
It also tells you where to look for known faults, especially the prop shaft centre bearing, and possible corrosion on the rear doors.