Operation Manual

Maintenance
13
160 Caravan - 14-09 - EN
13.5.2 Topping up the heating fluid
 Position the vehicle horizontally. This prevents formation of bubbles.
 Switch off the hot-water heater and allow it to cool down.
 Unscrew or remove the panel.
 Unscrew the screw cap (Fig. 152,1) 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.
13.5.3 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. 153,1) 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.
Z The heating fluid has to be renewed every 2 years.
Z The optimum fluid level is reached when the fluid in the compensator reservoir
is 1 cm above the "MIN" mark.
Fig. 153 Bleeding valve of hot-water
heater