Close the door!

Do I need to say no more now, because this task is performed by the ABUS excellent.
4 stars there, because he mounted as in our winter garden, a small weakness shows:
Since the Fuktion the closer is done well on oil pressure, the closing speed and the pressure at different temperatures changed. In Warm the door slams happy times, when it's cold it stays like are open.
Here helps a "mean value adjustment".
Mounted indoors at realtiv constant temperature function is certainly better.