808
Thermo G
8 Repair
engine off and check the coolant level.
Refill coolant as needed.
While the vehicle engine is switched off, switch on the
heater with the circulating pump and the vehicle heating
fan.
After the engine motor cooled down, the heater must
automatically start and stop as soon as the upper swit-
ching threshold is reached.
If the heater does not start automatically, it must be
verified, whether the heater overheating protection is
triggered and the heater is interlocked.
Release the heater (see 4.5) and repeat the bleeding
process.
