As I was checking this out, I noticed the long braided heater hose around the back of the engine has started to weep on the rubber section where it connects to the head, AND the bottom hose has splits all over it but no leaks yet...
Both these hoses, 96 017 618 and 95 638 588 are still available but from France only....
I'd check yours out as the unusually friendly main stealer said they were showing 5 left in France!





