essel – sounds like your stepson’s worked it out for himself, but how ever pretty it may be, and how ever nicely it handles, it’s an ALFA for god’s sake! This means that the electrics will be pretty crap (still, krypton!) and therefore lots of silly things will go wrong – constantly if he plans to do any mileage in it. The airbag sensor is just the start…….
Added to which, it has the 1.9 TD engine. This is a RUBBISH engine and has loadsa issues, which ever car it comes in. I had it in a Saab 9-3 estate, and while it had good poke when working well, it needs a cam belt every 72K miles (plus associated running gear and water pump etc) and it goes through EGR valves like they are going out of fashion. Combine this with poor electrics and you have recipe for chaos. Saabs in their last days under the malign hand of GM also had pretty poor electrics, and given that I do 30K+ miles per year, by 173K miles I had to throw the 9-3 away. Totally unreliable and parts packing up randomly, including ongoing EGR and particulate filter issues. Such a change to earlier Saabs. I switched back to older 9-5 estates with the 2.2TiD engine, and have done a further 60K miles over the last 2 years with no mechanical issues at all.
In summary – AVOID!