There is a procedure in the owners manual for the MY1998 on how to adjust them. It involves parking near a flat vertical surface (wall, garage door), making some marks and then backing up about 25'. For accuracy the car must be on a level surface. The modules have a built-in bubble level and two hex knobs for vertical and horizontal adjustment. As mentioned, bulbs age and develop a color shift. They should be replaced as pairs.

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Good luck.






1998 E320 Wagon