The 74 kW engine has a Motronic ignition system with a distributor. In this engine, the ignition is installed, because. adapting the ignition timing to each situation in the operation of the engine - this is done exclusively electronically.
The 92 kW engine has a Motronic ignition system without a distributor. In this ignition system, there is one ignition coil for two cylinders. It gives a spark at the moment when one of the two cylinders needs it. This makes the ignition distributor redundant. A side effect of this division is that each cylinder receives one more cylinder on the exhaust stroke during one working cycle (unnecessary but harmless) spark.
The 110 kW four-cylinder engine is also equipped with a distributorless Motronic ignition system. The difference from the 92 kW engine: here each cylinder has its own ignition coil with its own control. There is no unnecessary spark, and each cylinder can be controlled separately.
The MPI and MPFI ignition system of the six-cylinder engine is an integral part of the engine management. Here, as in the 92 kW engine, there is one ignition coil for every two cylinders.
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