Here you can see it clearly. This will not pass the safety inspection, so we'll need to change the lamp.
Though reflectors are available separately, they are hard to find, so it is best to use a set of "refurbished" headlamps fitted with new reflectors. To replace the headlights the bumper needs to come off. Though inconvenient and time consuming it is surprisingly easy. After carefully unclipping he indicators there are two large bolts at the front. And several more under the bonnet.
And two on either side of the bumper inside the wing. For this the front of the plastic wing liner needs to be unscrewed and moved aside. While I had these parts exposed I soaked the inner wing and chassis parts with Waxoyl to prevent rust.
With the bumper removed it is easy to reach the fittings of the lamps. There are two nuts on top and one screw on the side under the front of the wing.