Rust...

[beautymeanswheels]

Hole under battery tray

Front jacking points and one of the front footwells need attention.

Maybe a silly question but what would be best option? Cut and weld?

Issue with footwell and jacking point is that once cut carpet and interior would be exposed so can't exactly just weld a peace in without taking interior out?

[Grrrmachine]

You can remove a few convenient bits of trim which will allow you to fold the carpet back in order to weld the "jacking points" (they're not for jacking). But yes, the only way to cure rust is to cut it out and weld in fresh metal.

Check out the Restorations for an idea of what's involved:

http://www.e30zone.net/e30zonewiki/inde ... storations

[adit]

don't forget the amazing zone wiki:

http://www.e30zone.net/e30zonewiki/inde ... ywork#Rust

[beautymeanswheels]

http://www.r3vlimited.com/board/showthread.php?t=148000

Came across this e30 m3 resto thread. Only read the first page when posted so not sure what the outcome was