Hi all, I have a worrying leak dripping from the overload switch, just below and forward of the vacuum modulator. However, I am not convinced the leak is from this switch, but may in fact be the modulator. Before I start removing parts, I was just wondering if anyone can confirm that this switch can, in fact, leak at all? Or has anyone heard of one leaking? It's not quite cheap to replace, so before I get started....

Thanks!

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1995 MB E320 Wagon
2001 BMW 530i
2007 MINI Cooper S (!)