welding

I have just bought a cat d corsa (my second) I need to do some welding to it, and was about to start when I saw a thread saying disconnecting battery will give me problems. Can any body advise if this is true? It is a 60 reg 1.7 ctdi. Tony

To scrap or not to scrap 1996 corsa B few things to list here Welding main point how much would rough fix be Offside front (outer Sill) seat belt anchorage prescribed area excessively corroded Nearside front (outer Sill) seat belt anchorage prescribed area excessively corroded Offside Rear...