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Engine cooling > < Cylinder head: Removing and installing

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Heating rheostat (crankshaft sump breather)N79: checking
Heating rheostat (crankshaft sump breather) -N79-: checking
  Note
t  Theheating Rheostat (crankshaft sump breather ) -N79- has at room temperature a resistance of 3...7 Ω.
t  To ensure the heating resistance is at room temperature, the vehicle should be at approx. 25 °C.
Test sequence
   
–  Remove the double connector-Arrow- and measure the resistance between the pins of the heating resistance.
t  Specification: 3... 3 ... 7 Ω
If the specification is not obtained:
–  Replace the oil deflector with heating resistance.
If the specified value is achieved:
–  Checking power supply
Voltage supply: checking
  E17-0009
–  Remove the double connector -arrow- and, with the ignition connected, measure the voltage of the removed connector between pins 1 + 2:
t  Specification: min. 11.5V
If the specification is not obtained:
–  Check the cables with the aid of the electric circuits diagram → Current flow diagrams, Electrical fault finding and Fitting locations.
.
  E17-0009

Engine cooling > < Cylinder head: Removing and installing