Mercedes-Benz 500 SEC Operator's Manual page 104

Exterior Lamps
When replacing bulbs, install only 12
volt bulbs with the specified watt
rating
Headlamp Assembly
1 Headlamp vertical adjustment
screw
2 Headlamp horizontal adjustment
screw
3 Clamp for high and low beam
headlamp bulb cover
4 Bulb socket for turn signal,
parking, side marker and
standing lamp bulb
5 Electrical connector for high
and low beam headlamp bulb
104