Resetting the service interval indicator lights on BMW E30
How to BMW Service indicator lights FAQ. The service indicator lights are reset through a pin in the diagnostic connector located in the engine compartment. There are 2 types of diagnostic connectors used on BMWs. One is a 15 pin connector used on 1987 and earlier cars, the other is a 20 pin connector used on 1987-on cars. In what follows the 15 pin connector is referred to as the early type and the 20 pin as the late type. Resetting the service…





