Technical characteristics of the ignition system (VW Passat B2)

Contents: Ignition distributor sensor ↓ Ignition coil ↓ Switch ↓ Spark plugs ↓

The engine ignition system is battery-powered, contactless, with a nominal voltage of 12 V. It consists of a spark distributor sensor, a switch, an ignition coil, spark plugs, and high-voltage wires. The power supply circuit of the primary winding of the ignition coil is interrupted by an electronic switch. Control pulses are sent to the switch from a contactless sensor located in the spark distributor sensor.

Automatic ignition advance characteristics:
A - characteristic of a centrifugal regulator;
B — vacuum regulator characteristic. When testing the ignition distributor sensor removed from the vehicle on the bench, reduce the values indicated on the graph by half. When testing on the vehicle, add the initial ignition advance angle to the indicated values

Ignition distributor sensor

Brand and catalog Mg: Bosch 0 237 021 006.
Initial ignition advance angle before TDC at a crankshaft speed of 950 rpm and with the hose disconnected from the vacuum ignition advance regulator: 10°.