Those looms are most probably to allow dipped beam to stay on with main beam.
Personally I'd get the coding changed to enable this. It's a factory setting for vans with H7 headlights, so will ultimately be more reliable than added wiring.
I believe the looms are to save coding, but I never fitted mine as mine were already coded.Do the looms not activate dipped and main beam together to save coding ?
Is there a dark area directly in front of the van without them ?
No dark patch on mine, mine are really bright


