Positive Crankcase Ventilation: Description and Operation

GF09.00-P-4010P Component Description For Vent Line Heater Element
ENGINE 642 in MODEL 164.1 /8, 203.0 /2, 221.0 /1, 251.0 /1 up to Model Year 2008 /AEJ 07
ENGINE 642 in MODEL 209.3 /4, 211.0 /2 /6, 219.3
ENGINE 642 in MODEL 461.3, 463.3 up to 31.5.12





Shown except code (494) USA version and except model 461.3

R39/1 Vent line heater element

Location
The vent line heater element is located in the crankcase ventilation hose on the intake line to turbocharger.

Task
The vent line heater element prevents freezing of the crankcase ventilation system.

Design
The vent line heater element consists of a plastic housing in which a heating resistor is integrated.

Function
The vent line heating element is switched on and off by the CDI control unit (N3/9) depending on the outside temperature.