To clarify my statement on the swinging sidelight. It appeared that the sidelight was only held on by one loose bolt ( if any) which means the wing was not firmly connected to the support bar and therefore it had no support and likely to flex and crack the paint. On my 93 plus 4 the sidelight is held on by two bolts, one through the support bar with a scrap of rubber between the bar and the wing and a second bolt through the wing into the rear of the sidelight keeping it straight. There is a smaller hole between the two bolt holes that the wiring feeds through. A rubber gasket sits between the sidelight and the wing, presumably this compensates for the fact that the wing is curved and the lamp is flat.
Breakage of the steel support bar means the loading must be considerable.
