Adjusting Screw Assemblies For Volkswagen New Beetle. Screw it in GENTLY until it bottoms. There will be a horizontal adjust screw and vertical adjust screw.
You will have vertical adjustment screws for each independent beam (separate highs and separate lows, but will be same screw if highs and lows are the same bulb). The Volume Control Screw is the smaller of the two adjusting screws. You also have to push down on the silver release bar and pull the light housing out at the same time.
Screw it in GENTLY until it bottoms.
Depending on the model of your Volkswagen, you will need either a screwdriver, wrench or ratchet to adjust the screws.
I am new to adjusting the carburetor. Find helpful customer reviews and review ratings for Volkswagen New Beetle. The location is blind to the installer and the angle of the screws is such that it's hard to get a good "bite" on the fasteners.. fastener on the back of the light (sorta like a toggle-bolt) to move and the other part finally gave way.