Hi appreciate if someone can provide confirmation/validation on what appear to be two recent and seemingly different oil leaks that I'm seeing per pics when facing the R56 Cooper auto at 90k:

No error codes.
Replaced the solenoid for an aftermarket one a few months back.

Leak 1: Right hand driver side I can dark oil below the vacuum pump. I suspect this is the vacuum pump O ring. Not sure whether I should change the whole pump or just the O ring. Brake seems spongy

Leak 2: Left hand passenger side I can see light oil below the solenoid, so I suspect it's not related to what I'm seeing on the right vacuum pump side above. Slightly annoyed if it is the solenoid valve given it's recent replacement but could be coming from elsewhere in that area.

Appreciate if anyone can advise as trawling the net they seem very common, just a pain to diagnose the source of the leak. In order to fix am I better off with a gasket sealant or new O rings?

Thanks!

R56Spark