Hi guys,
Thought this might be helpful for some of you. It's for Non self levelling H7 bulb units on my 2015 i30.
For the adjustment you'll need either a medium to large head Phillips screw driver with shank at least 140mm long for physical reach (method 1), or a short shank Phillips screw driver (method 2), or a socket set with 12mm socket or 12mm ring spanner (method 3).
Pic 1 Approaching car with bonnet up showing headlight unit on left hand side (right hand side when facing front of car. This will be the light used in all photos).
Pic 2 Notice the 'U D' Up/Down symbols and hole for the long shank screw driver. This adjusts the High beam up or down.
Pic 3 and 4 Notice a guide for a screw driver shank lower down on the rear of the headlight unit. This is the adjuster for the Low beam up or down. Also notice in pic 4 the 12mm nut with Phillips head in it's centre. By rotating this nut with socket set or using a short Phillips screw driver, you can achieve the same result as using a long shank Phillips screw driver as all we want to do is rotate either clockwise or anti-clockwise. It's best to do this on level ground with headlights on pointing at a wall so you can see your adjustments. Ideally you don't want your low beam lights higher than about 3" below the start of a back window of a medium car.
Pic 5 Another broader look at location of High beam adjustment.
Pic 6 These probably won't need adjusting. They are a L R (left/right) adjustments.
Pic 7 and 8 An H7 bulb
Pic 9 Showing why you need a Phillips screw driver with a minimum of 140mm shank if you want to adjust by method 1. It show a vernier calliper depth gauge measuring down to the adjustment mechanism.
Pic 10 Showing a close up of the mechanism. See the little cog teeth? Your Phillips screw driver will engage with those teeth. Its crude but effective. You can also use method 2 and 3 by using the 12mm socket, ring spanner or short shanked Phillips screw driver.
I can't tell you how much you'll need to turn the nut, but if you do it at night on level ground facing a wall, you can see your adjustments. A little at a time is best and be careful not to blind other drivers. I guaranty you'll be impressed with the results. Hyundai is OVER CONSERVATIVE with their factory adjustment. There a excellent gains to be made.
Cheers James.