yeh i guess it would be like creating an etch tank when you think on...shesh...and the earlier 7 series had this feature as standard ...go figure....grrrr...

i just hate hate hate drilling tanks..its (a) putting a hole in something i dont want holes in (b) creating a stres point in a stressed structure and (c) a PITA to get the bits....

there must be a good solution here..its doing it non invasively thats the problem i guess...i was thinking about a presure switch at one point but thats not easy either...

maybee i will just go and take my car the local dealer nad ge a square tank retro-fitted with the float in it...problem is the car confuses them everytime they see it as volvo (typically) made something they didnt make....i.e. its a 940 that isnt really... perhaps...maybee... (eg 760 wiring loom...go figure)