Volkswagen fixes it for Sir Jim.
The bright blue Volkswagen California is the latest in a long line of such vehicles in which he often sleeps outside his own home.
The self-confessed eccentric, says: "I'm a wanderer and always have been, so I love motorhomes and especially sleeping in them.
Sometimes I get home, check my post, shower and sleep in the campervan outside!" Sir Jim, who is a long-standing member of the Institute of Advanced Motorists, was wellknown for his series of television public information films including the "clunk-click, every trip" safety broadcast encouraging car occupants to wear seat belts.
He is credited with being Britain's first disc jockey by pioneering the use of twin record decks for continuous music and was the first and last presenter of Top of the Pops, in addition to presenting the long-running Saturday evening television show Jim'll Fix It.
He was the subject of a Louis Theroux documentary in which he expressed his love of campervans and was filmed sleeping in the one he had at the time while it was parked outside his flat in Yorkshire and his second home in Glen Coe, Scotland.
Of his latest acquisition, he says: "I've had two other Volkswagen campers over the years but this California is the all-singing, all-dancing dream vehicle for me." It has an electric pop-up roof, two double beds, fridge, cooker and sink with an outdoor table and chairs stored in the side door and tailgate.
Sir Jim chose the flagship California with a five-cylinder, 2.5-litre turbodiesel engine, all-wheel drive and an optional bike rack on the tailgate.