The distributor points are a small switch that triggers the coil to fire a spark. These often become worn or pitted, and should be replaced every time that you do a tune-up on your car. Electronic ignition systems were introduced with the 633CSi, eliminating the use of points.
12-11-1-271-687-M14
Ignition Points, 630CSi (1977) Each Brand: Bosch [More Info]
$7.00
Ignition Coils
A coil is essentially a giant capacitor, storing voltage until it is discharged through the distributor, down to the spark plugs.
12-13-1-357-294-M14
Ignition Coil, 630CSi (1977), Each Brand: Bosch [More Info]
$45.00
12-13-1-359-637-M14
Ignition Coil, for cars without Transistorized Ignition, 630CSi (1977), Each Brand: Bosch [More Info]
$39.25
12-13-1-363-629-M14
Ignition Coil, 633CSi (1978-08/81), Each Brand: Bosch [More Info]
$70.25
12-13-1-269-279-BOE
Ignition Coil, 633CSi (9/81-12/83), Each Brand: Genuine BMW [More Info]
