There is indeed a first aid course run in English at Ostbahnhof.
I'd reccommend doing it in English, even if your German is 'allright' -
as it's about 6 hours long, and was exhausting\boring enough in English!!
Straight from a Driving Schools www page:
http://www.fahrschule-christine-timmer.de/english.htm>>You have to attend a class in Immediate Life-Saving Measures ( „Sofortmaßnahmen am Unfallort"). The Red Cross and comparable organizations offer them at regular intervals; the "Allgemeine Sanitätshilfe" does classes in English, too. <<
Click
http://www.notfallmedizin.de/en/ausbildung/lsm.html for the Allgemeine Sanitätshilfe course details... in english!

The english course takes place regularly every first and third Saturday in the month. Location: Orleansplatz 11.
If you're not sure where that is, enter it in
http://www.hot-maps.de/ , not forgetting to put in München as the City.

You also need an eye test. The "Allgemeine Sanitätshilfe" or any optical store will do the job for approximately Euro 5,-.
DON'T forget your Passport for either the First Aid Course, OR the Eye test.
Normally - during one of the breaks at the first Aid Course, someone comes
along and does an eye test. It's only Eur5, and breaks up the evening,
so I'd reccommend doing that. Make sure you go to the loo before the
6 1/2 hour 1st Aid course, and don't drink too many liquids before hand,
as we had to use the toilet in
Ostbahnhof.