On Alfa number 15
AO Platinum Member
Join Date: Dec 2005
Location: United Kingdom
Re: BOSCH spark plugs and starting problems
I wouldn't use bosch plugs, NGK's are the ones to go for, as a few people have had trouble the the bosch ones.
It may be worth cleaning out the box of relays in front of the battery though as the damp weather may be starting to get in there and cause some corrosion. it could also be that your crank sensor is starting to fail if the car is very reluctant to fire, although my 156 will turn over a couple of times before it starts on a cold day.