E89 Z4 Roof in wrong position

[Smartbear]

None of my cars wires broke on bends, broke on straight sections.
In fact one wire had been looped around the other, slight too long and still broke.
It's as though the insulation shrinks and pulls apart.
I noticed the insulation seemed quite brittle, as though reacted with the glue on the tape.
Non taped wires are still flexible.

Wiring insulation can be affected by strange things, the gas that leaked from the air conditioning in London Underground signaling rooms (tetrafluracarbon something) slowly turned lots of it into a sticky, oozing mess due to the chemical reaction that took place!
Rob

[flybobbie]

A lot of Piper aircraft used a rubber to mount sun visors, that turns into what looks like chewing gum.
Also interior plastic becomes brittle and breaks up in Cessnas.