Component description for vent line heater element - GF09.00-P-4010P

ENGINE 642 in MODEL 164.1/8, 203.0/2, 221.0/1, 251.0/1 up to Model Year 08/AEJ 07

ENGINE 642 in MODEL 209.3/4, 211.0/2/6, 219.3

ENGINE 642 in MODEL 461.3, 463.3

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

Fig 1: Locating Vent Line Heater Element

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

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.