Sachs was reported to have suffered from vascular dementia for four years before his death. He was buried on Thursday, December 1.
"It wasn't very pleasant," his wife Melody told the Daily Mail. "It didn't get really bad until quite near the end. I nursed Andrew, I was there for every moment of it."
Born in Germany, Sachs' parents fled Nazi persecution of the Jews by moving to the United Kingdom, where their son eventually became a well-known actor and comedian.
Apart from his iconic role as bumbling waiter Manuel on Fawlty Towers, Sachs appeared in numerous radio adaptations and children's television series, as well as narrating audio books, including C.S. Lewis' "Narnia" series.
British soap fans will also remember the late actor for his memorable stints in both Coronation Street and EastEnders.
Back in 2008, Sachs played Ramsay Leonard Clegg, the half brother of Corrie stalwart Norris Cole (Malcolm Hebden), a run which lasted 27 episodes.
In 2015, he appeared in EastEnders as Cyril, a patient on the same ward as Stan Carter (Timothy West).