My sister bought a 11 months old BMW 316 from a garage but not a main BMW garage. She was given a 2 year guarantee from the garage but was told there was still 1 year BMW warrenty on it. After about a month she was having trouble with opening and closing the window on the passenger side from the control on that door. She went back to the garage who took the car to a BMW garage to have it fix under the warrenty only to be told that the previous onwer wired speakers into the car and damage the controls to the window and thats means the BMW warrenty is no longer valid. Cost €2,200 to repair but lucky for her the garage she bought the car from had to foot the bill. So buyer beware.