I am using overpass turbo web http://overpass-turbo.eu/#
after typing in
[out:csv(::lat,::lon;false)];
relation(2081626);>;out;
I get already a list of coordinates, under "data" tab
48.0786156  11.5510212
48.0769149  11.5502003
48.0763526  11.5505930
48.0768127  11.5502292
48.0761811  11.5499233
...
How could I plot this list of coordinates on "Map" tab as a route, on the map
                        
try this Overpass XML