Here to help . . .
Join Date: May 2010
Location: United Kingdom
I have had a lot of 156's with rust in the rear floor section around the stamped drain holes. It seems that they don't protect the bare edges of the metal properly when they stamp the drain holes/tabs.
Basically you have the remove the rear seat base (you can do it with it in, but why risk the leather), remove the side trims (careful, they break easy) and pull the carpet forward. You can just about access it enough like that. Front seats are easy to remove but without removing the B pillar trims and console, the carpet won't budge much more anyway.
The main issue is all the crap that is stuck to the floor which needs removing to be able to get a good weld. Making a patch is easy enough although it will never be that pretty - but who cares.
Purely to give you an idea of what to pay, and based roughly on what I charge (note, not asking for work as booked until new year anyway). The welding is about 3-5 hours work total for someone who knows what they are doing and who takes the time to remove the interior without damaging it. Therefore £100-150 at the least I would say. The wishbones are normally £50-60 for a pair to buy and take 30-60 minutes a side depending on how used to doing them the mechanic is. I've known it take 4 hours if they don't have a clue. See the Alfaworkshop site for a how to on it. It's easy when you know the tricks. I charge £30 a side if I have other jobs to do at the same time.
Hope that helps and as I am not advertising for work (I don't want it, I don't have enough hours in the day to do my own projects anyway), I won't get in trouble again for trying to help.
*Removed by OA*