Here is a picture of mine
Braydons havent got back to me about the circuit board - I will chase them up tomorrow. That will be nearly 3 weeks driving about with only one tail light working - if the other one goes before I can get this sorted I will be in trouble.
'Thinks' - as an emergency measure I might stick a flat round rear bicycle LED light on the lens. Better than nothing I suppose.
I find this most frustrating, but I guess that its what happens when models such as the 240 get to a certain age - some parts become problematic to get hold of. It wasnt too long ago that you could get things like this within a day or so........
In any event, going by Loki's description I have an earlier version 1986 - 1990 fitted as the stop light is above the rear light. In which case the light cluster shown at the bottom of the page in the Scandparts link posted in my first post should be the right one.
Although my car is a 90 - perhaps it was produced just before the change?