Join Date: Apr 2007
Location: Oxnard, CA, USA
The low beam and high beams are located in the same headlight housing, so adjusting one up or down also adjusts the other by the same amount.
There is no way to adjust them independently. This is the same for the all Halogen bulb setup, or the factory or aftermarket HID setups.
You're seeing the very sharp upper cutoff of the low beam being amplified by the brighter HID bulb, compared to the weaker Halogen high beam pattern.
The only thing you can do is to adjust either the low or high beam correctly, then use additional driving lights to fill in the other.
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032
All lower 48 states plus Alaska on the K13GT in two weeks . . .
Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...