Diesel Emissions Fluid Heating Element: Description and Operation

GF14.40-D-3041HU Component Description For AdBlue Tank Heating Element

- with CODE (MG5) Engine OM 642 DE 30 LA, 140 kW (190 hp) 3800 rpm
- with CODE (MH1) Low-emission engine EPA 10/CARB
- with CODE (ZU7) National version for Canada

- with CODE (MG5) Engine OM 642 DE 30 LA, 140 kW (190 hp) 3800 rpm
- with CODE (MH1) Low-emission engine EPA 10/CARB
- with CODE (ZU8) National version for USA





Location

30 AdBlue(R) tank
32 AdBlue(R) extraction tank

R51 AdBlue(R) tank heating element

The AdBlue(R) tank heating element is located in the AdBlue(R) extraction tank.

Task

The AdBlue(R) tank heating element warms the AdBlue(R) reducing agent in the AdBlue(R) extraction tank at cold temperatures.

Function

The AdBlue(R) tank heating element consists of a positive temperature coefficient (PTC) heating element and is actuated by the AdBlue(R) control unit (N141) according to the temperature detected by the AdBlue tank temperature sensor (R51b1). The power consumption is self-regulated via the PTC behavior of the heating element.

The electrical resistance of the PTC heating element increases with an increasing temperature.