Technical data

12
8
Cooling circuit
Coolant flows both through the cylinder head
as well as the engine block in the familiar
cross-flow manner. A new feature, however, is
that each cylinder head has its own radiator
feed and the thermostat is located in the
return flow line. The radiator is divided into an
upper and lower water tank. Coolant that
emerges from the cylinder head 1 - 5 flows
through the upper water tank. The coolant
from cylinder head 6 - 10 flows through the
lower water tank.
The split cooler makes it necessary to provide
three bleeder openings and two bleeder lines
to ensure effective self-bleeding of the
system.
The tap-off point for the heating system heat
exchanger is located at the rear of the cylinder
heads. The heating return line and the line to
the expansion tank merge together at a T-
piece ahead of the water pump.
14 - Cooling circuit