Hilary wrote:

I transferred between United and Lufthansa (RJ
operated by AirLitoral) to LYS at MUC a few years
ago. It was a long walk up and down stairs - and
more than one passport check.

You must have taken a wrong turn somewhere. That sort of thing was
never necessary, even in Terminal 1. Terminal 2 is still quite new. T2
is the Star Alliance terminal now, so also the one that United uses.

Is it? Most LH and related flights use T1.

T1 is the 'old' terminal. When T2 opened in June 2003, LH and all Star
airlines moved to T2.
T2 will get an additional satellite in the near future. 3rd runway is in
the planning stages.

http://www.munich-airport.de

M