Join Date: Jan 2008
Location: Boston, Lincs
Re: Which Headlamp Bulb
After all the waffle just to clarify for BruceL, the OP.
It's probable that you have HB 3, but could be HB 4 or even a mix between the full and dipped. My guess is that Alfa fitted what was in the parts bin on that day !
The only sure way is to physically look. It's not difficult, just remove the top black plastic covers and then remove the bulbs by twisting the holders, sorta like a bayonet connection. The handbook makes it sound a lot more difficult than it actually is, it's very simple.
The code HB ? will be stamped on the bulb. Better to spend a few minutes checking than to waste money on buying the wrong thing. Sadly you cannot trust what all the bulb suppliers say they should be.