Remove the motor from the housing by pushing down the 4 rubber tips on the top. I used a regular flat scredriver. At the same time wiggle carefully out the vacuum pipe(light force with a plier might help)
Once removed from both units, use a small plier or a knife to free the cables from the motor housing(easier then cutting and soldering back togeher)
Or if you love soldering is possible to remove the complete cable directly from the circuit board
I did open the motor that was working in the L unit but no pics of that i'm afraid
After you have figured how you will do the cables, put the new/exchange motor back into the housing, pull the rubber tips all the way up until you see that they are in place, at the same time carefully put the plastic pipe back in where it was be and insert circuit board before snapping the bottom cover bak on.
Then its ready for installation and all should be good.
Since i could only upload thumbnails any moderator are welcome to alter this thread in order the make it more understandable if needed