okay folks this has been mentioned in one of the German
truck mags more than once and has up to yet not had any
bad reports posted, it has a pdf link which is also in English
so try having a look through this HERE;
IT SHOW YOU where it is ands may be worth keeping in mind if you are stuck near bye at weekends etc,.
THIS is a translated site not perfect but the pdf is in English so
have a look through here well worth itHERE