So, replaced the filter when changing the cambelt. Primed up and all worked perfectly.
*However* - made a **** up when fitting the sensor on the base and left the old gasket in as well as the new. This didn't seal properly and leaked!
Sorted it out now. However I am having an issue with starting. if the engine is left overnight then it fires up first turn of the key. But if I drive the car for a mile or so, stop the engine, it is very difficult to start again.
The filter is primed and not leaking now and I am at a loss as to what it could be! Any ideas?
Alfa Romeo history in order - 156 Sele, 156 Sele, Spider 156jtd facelift, 147 1.6, 156 GTA, GTV 3.0, 156jtd, 145QV, 156GTA, 145qv