how do you change drivers side head lamp? on 1996 Volkswagen Jetta

how do you unscrew those white nobs?

Asked by for the 1996 Volkswagen Jetta
Its hard to explain with out being able to supply you pictures/illustrations. Recently I have looked on You tube and have often found links that are close. If you do some of your own work on your car you might look for a Bentley brand workshop manual (you may see one second hand on line). There is a company that independent auto repair shops "buy" their information from that offer a very reasonable service to do it yourselvers. You get a one year subscription to year make and model specific repair procedures, service bulletins, component locations, wiring diagrams ect.... great quality information same as the professionals have ,much better than generic workshop manuals from parts stores, much cheaper than the factory manual.