e39 thermostat housing cleanup diy

[moots]

i have been having to top up the coolant about 1 cup every month and i hope to have traced it to the small and slow leak near the thermostat housin.gremoved the rad fan for better access and undo 4 bolts to remove t'stat housing.removed the t'stat and cleaned everything up.gasket was reused with a bit of sealant application and bolted everything back up again.lets hope this fixes the leak......

 

[moots]

since i was already there,thought i'd share the location of the crankcase position sensor and the inlet camshaft sensor ........if these fails,can cause bad idle and engine stall....can diy dis wan osso......