Specifications

30
Actuators
Injectors N30, N31, N32, N33, N83, N84, N85, N86
The injectors are actuated by the engine control
unit according to the firing order.
They are secured with retaining clips directly to a
common fuel rail and inject atomised fuel imme-
diately before the inlet valve.
If individual injectors fail, fuel is not injected at
that position. This means that the engine runs at
reduced output.
Effects of failure
For further information, please refer to
SSP 127 „VR 6 Engine“.
The single-spark ignition coils deliver only one
spark via the spark plugs, and one is fitted at
each cylinder.
An output stage and an ignition coil are combi-
ned in each element so that the engine manage-
ment system can influence the ignition
individually for each cylinder.
Single-spark ignition coils
N70, N127, N291, N292, N323, N324, N325, N326
If an ignition coil fails, injection is switched off for
that cylinder.
This prevents damage to the catalyst.
Effects of failure
S249_043
S249_042
S249_045
S249_044