I know connection times in MUC are discussed in detail, but I haven't found a definitive answer to my situation. Apologies if this is answered somewhere else.

I'm considering following open jaw ticket through united.com and am a little concerned about the connections in MUC for a US citizen. I'm assuming my Platinum status on United isn't much help in case I run into delays
Outbound:Return:Both connections in MUC are 1 hour 25 minutes. Can the fantastic folks at flyer talk advise me as to the likelihood of making these connections (assuming no delays on the first flight)? Also, can you give me a heads-up as to what to expect during these transfers? Passport control, customs, etc.?