Heating
Because AdBlue
®
/DEF solution freezes at around –
11
°C (12.2 °F) the tank is equipped with a heating coil
that uses engine coolant. A solenoid valve controls the
flow of coolant. The hoses between the tank and the
pump are electrically heated and the hose connections
are equipped with extra insulation.
There is a temperature sensor in the tank that transmits
a signal to the control unit so that the pump cannot start
until the AdBlue
®
/DEF solution is fluid. The standard
system can handle thawing from -40 °C (-40 °F). The
system is emptied at shut down in order to prevent
expansion damage due to freezing.
IMPORTANT:
Hoses must be handled carefully and not twisted or
bent excessively in order to avoid damaging the
heating system.
Storage
IMPORTANT:
To prevent breakdown and evaporation during
longterm storage, AdBlue®/DEF may not be stored at
temperatures higher than 25 °C (77 °F) or in direct
sunlight.
Remember that the solution expands upon freezing
and to leave room for expansion in the tank when
storing in spaces where there is a risk of freezing.
1. From engine
2. To tank
Presentation
26
47711089 09-2018 © AB VOLVO PENTA
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