Trivia

When the Berlin wall was pulled down by German citizens, a British journalist found some interesting graffiti. It read "Built by Germans, demolished by Oz".

The building site, although set in Germany, was actually in Hertfordshire in Elstree studios.. Despite the series giving the impression that most of it was filmed in Germany only about 4 weeks of establishing shots were done there and everything else, including building the block of flats was done at Elstree Studios. The block was demolished on completion of filming and it is now the Albert Square set of EastEnders (1985)

Actor Gary Holton, who played Wayne Norris, died of a drugs overdose in 1985 while filming the second series, leading to a somewhat watered-down appearance in the last few episodes. As they had filmed all of the exterior scenes with Wayne in them but had not started any of the interior scenes, they decided to dress one of the production team in a wig to look like Wayne for backshots during indoor scenes to keep some form of continuity going. For many of the indoor scenes, he was written out entirely, and his presence was accounted for by explaining he was elsewhere at the time.

There was no love lost between executive producer Allan McKeown and Jimmy Nail. McKeown said that Nail was a 'nightmare' to work with during the second series. McKeown said that Nail suddenly thought he knew everything there is to know about filming and would often demand his lines be changed and would tell the director how to film a scene. McKeown confessed that during the filming of the second series, he thought Jimmy Nail was an "arsehole". The pair never spoke to each other again.

Pat Roach developed throat cancer before the filming of series three began. Although he would appear in series' three and four, he was undergoing chemotherapy at the same time. In the third series, it's clear that Roach was ill, and some scenes of his had to be changed to accommodate his medical condition. Although he felt fit enough to appear in series four, his family were angry at him because of the physical toll it was taking out on his well-being. Roach was too ill to appear in what would be the last Auf Wiedersehen Pet series ("The Specials") in 2004. He died during filming of that two-hour special. In a touching scene, Dennis reads a letter from Bomber to the rest of the group while they are all dining in a restaurant, where he explains his reasons for not having joined them. The group lift their glasses and drink a toast; "To Bomber!"