A teenager was then linked to the the crime through DNA and fingerprints, Hamilton Sheriff Court heard today.
Dillon Lawson (18), formerly of Springfield Road, Cumbernauld, admitted that he and others broke into a house in Wilkie Drive and stole the vehicle on September 10 or 11 last year.
Jason Bell, prosecuting, said the house occupier is employed by Mercedes and the vehicle stolen was a company car.
Mr Bell told the court: “He secured the vehicle, put the key on a ledge inside the front door of the house and went to bed.
“The next morning he saw the keys and the car were missing. A toilet window was broken and the lock had been forced. This was how the house had been broken into.”
Police were alerted and due to the tracker device the car was traced to a lock-up in Cumbernauld.
Mr Bell added: “Scenes of crime officers recovered DNA and fingerprints from the lock up and prints from the toilet.”
Lawson told police he had been with two other men. He forced open the window for one of the others to enter.
Defence agent Nicky Matteo said Lawson had co-operated fully with police.
Sheriff Daniel Kelly deferred sentence until December 16 and continued bail, but warned: “This is a serious crime and there is the possibility of prison.”