Getting the M3W ready for the 11 hour drive to Grindelwald in the morning, ticking over in neutral and checking everything OK when I see oil dripping on the floor. Dripping becomes a puddle! Up on ramps and it appears to be coming from above the housing. Bonnet off and oil tank is covered in oil. Lid off - seal gone!

Tank drained and cleaned and parts removed. Now put in a cork disc instead of rubber.

Panic over!

Omne trium perfectum