View Here : E30 Side View
BMW E30/E34 bumper side markers, clear. SOLD IN PAIRS SPECS: Vehicle Chassis - E30/E34; Vehicle Years - E30 1984-1991, E34 1989-1995; Exceptions - Does not fit E30 M3!
It is located behind the kick panel on the drivers side of the car (depends on the country). It is mounted on a metal plate that holds it still to the chassis as inside the CU there is a system that controls the central locking in case of crash (it automatically unlocks the whole car in case of impact).