I now wonder if the lens has come adrift in the past and been resealed, as the light bulb, when sitting in the light, has the connectors at a slight angle to the horizontal compared to the other light. However, the cut-out to locate the bulb does appear, as far as I can see so far, to be the same orientation as the other lamp.
The light is giving more of a generally diffused beam than having a clear top line of illumination, as though the light beam is not been reflected through the glass correctly, which might be something to do with the bulb orientation?
Also Pepper, what is the French for 'local scrapyard'? I think there maybe one up at Morlaix - we are near Callac in Central Brittany - but I don't know what to look for in the local yellow pages to see where there are others.
It's a bit of a bother at the moment, we're not mobile as our main car, a Scenic, is in the local garage getting the vent fan repaired (we had lost 3 of the 4 speeds) and the AC recharged up - it was not cooling at all - as seemingly Reno (both here and in the UK) say the gas goes after about 2 years. Don't ask me how gas 'evaporates' out of a sealed system, it doesn't make sense to me, but it also happens to Fords as well according to my son-in-law and his Mundayoh. Only consolation is that it's cheaper to do it here than in the UK - but it's big bucks all the same. To repair the fan with a new resistance matrix is 220 euros, and a gas recharge is 159 euros - ouch!