See also:

1975: the first generation - premiere as a two-door sedan with high-output four-cylinder engines
The presentation of the first BMW 3-Series in July 1975 saw BMW write a new chapter into the automotive history books. The two-door sedan wasted no time in leaving its own distinctive stamp on the ...

Socket for OBD OnboardDiagnosis
Position There is an OBD socket on the driver's side for checking the primary components in the vehicle emissions. Emissions ► The warning lamp lights up: Emissions are deteriorati ...

Radar sensor
Position Radar sensor Dirty or covered sensor A dirty or covered sensor may hinder the detection of vehicles. ▷ If necessary, clean the radar sensor. Remove layers of snow and ice care ...