alfa 147 misfire cylinder 1
my 147 lusso 03 plate began to misfire yesterday and the engine management light was flashing indicating motor control system failure,
I got to a garage this morning and it went on to a machine which picked up misfire on cylinder 1!
after the cover was removed and access gained to cylinder 1 coil pack we removed the spark plug caps to find the plug well half full of water. I have had the car for over a year and the coolant level has not been dropping, it has been fine.
we changed all 8 plugs and the car is now back to perfect
My question is ; where has this water come from as i have not been losing coolant?
the plug was very corroded indicating it has been sub merged for some time
thanks for your time