The British TV veteran's widow, Melody, has revealed the 86-year-old passed away in a care home on 23 November (16) and was laid to rest at a funeral in London the following day (24Nov16).
She has also shared that he had been diagnosed with vascular dementia in 2012, and she had been caring for him ever since.
"My heart has been broken every day for a long time," she explained of his condition.
Melody admitted caring for Andrew in recent years has taken its toll on her own health, causing her to recently spend some time in hospital under intensive care, but she made a quick recovery, so she could return to her husband's side.
She added, "We were happy, we were always laughing, we never had a dull moment. He had dementia for four years and we didn't really notice it at first until the memory started going. It didn't get really bad until quite near the end. I nursed Andrew, I was there for every moment of it."
Born in Berlin, Germany, Sachs began his acting career in the theatre, before landing his onscreen debut in 1959 movie The Night We Dropped a Clanger.
He went on to score roles in TV series like The Saint and Randall and Hopkirk (Deceased), but Sachs was best known for his role as Manuel, the Spanish waiter, in John Cleese's classic sitcom FAWLTY TOWERS, which ran from 1975 until 1979.
Sachs also portrayed Ramsay Clegg in long-running British soap series Coronation Street.
He was thrust into the spotlight in 2008, when he fell victim to a cruel phone prank by comedian Russell Brand and U.K. media host Jonathan Ross. The Forgetting Sarah Marshall star was forced to step down from his job at a BBC radio station after calling Sachs on air and boasting about having sex with the actor's granddaughter.