During 5 month winter hibernation (not driven, not started, in warm garage) brake fluid reservoir has gone empty. No obvious leaks in master cylinder, wheels nor anywhere under car. No wet interior mats around pedals.
Brake fluid usually eats paint, so I should see if there is any under car or under master cylinder.
So where is it? I remember reading about servo sucking fluid from reservoir, but is that possible while car has not been used? I know reservoir was full in October but don’t know when it went empty. Just noticed today.
Never happened before, car has hibernated 20 winters in same garage.
Köpi
Mk2 3.8 1961
Logical place where the fluid went seems the Brake Servo, if no other leaks are found.
And since the Brake servo is mounted below the reservoir, it looks possible to me.
When you start the car and you see a lot of white smoke , you are sure 
Regards,
Peter Jan
Yep second the booster for the fluid loss.