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Checking the coolant level
1. Do not open the hood until the engine has cooled down. 2. Turn the expansion tank cap counterclockwise slightly to allow any accumulated pressure to escape; then continue turning to open. ...

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 ...

Activating HDC
Press the button; the LED above the button lights up. ...