Fuel preheating not operating function

P07.13-0282-81

Function

The fuel flows from the fuel tank through the fuel feed (c) into the fuel heat exchanger. The thermostat (60/1) keeps the passage to the preheating chamber closed, the fuel flows through opened side of the thermostat directly to the fuel outlet (d). No further fuel preheating takes place from the fuel temperature of >+30°C.

60/1 Thermostat

A Coolant from cylinder head

B Coolant to heat exchanger (vehicle heater)

a Fuel

b Coolant

c Fuel from fuel tank

d Fuel to fuel full-flow filter