Operation Manual

Maintenance
13
164 Caravan - 12-11 - EN
 Unscrew the screw cap (Fig. 171,1) at the compensator reservoir.
 Slowly remove the cover with circulating pump upwards.
 Check anti-freeze with an anti-freeze hydrometer. The frost protection content
must be 40% or provide frost protection of up to -25 °C.
 Fill the water frost protection mixture slowly into the compensator reservoir.
13.6.3 Bleeding the heating system
The bleeding valves are built in nearby the radiators.
 Switch off the hot-water heater and allow it to cool down.
 Open the bleeding valve (Fig. 172,1) and leave it open until no more air escapes.
 Close bleeding valve.
 Repeat this procedure at all bleeding valves.
 Check to see if the hot-water heater warms up.
13.7 Air conditioning unit
Z The optimum fluid level is reached when the fluid in the compensator reservoir
is 1 cm above the "MIN" mark.
Fig. 172 Bleeding valve of hot-water
heater
X Prior to carrying out work on the device, turn off the power supply.
Z Never operate the air conditioning unit without a lint filter. Without a lint filter
the evaporator becomes soiled, resulting in the performance of the air condi-
tioning unit being impaired.
Z If the condensation drain is clogged, condensate can enter the vehicle. Keep the
condensation drain free of dirt, leaves and similar obstacles.