Actuators

Logic of naming actuators in VW-group is simple it contains "N" + actuator number. The actuator number is unique. Here you can find fitting location, connectors and some basic information about actuators.

To our mind, actuators information is reference, so there is only simple search by number.

N

Audi A6 4B (1998-2005)
Audi A6 4F (2005- )
Audi A3 8L (1997-2003)
N109_4F_82_____1_0806_21_Funktion
N109_4F_82_____1_0806_21_Sollwerte

Fuel cut-off valve -N109

 

A - Fuel line to auxiliary heater

B - Fuel shut-off valve -N109

 

The fuel shut-off valve -N109 is only fitted in conjunction with the diesel auxiliary heater (phased-in as from model year 2007).

 

YZ Notes:

J The fuel shut-off valve -N109 shuts off the fuel line when the auxiliary heater is switched off. When the auxiliary heater is switched on (shortly before the metering pump -V54 is activated) the additional heater control unit -J364 switches voltage through to the fuel shut-off valve -N109. The fuel shut-off valve -N109 opens and allows the fuel to flow into the auxiliary heater=.

J The fuel shut-off valve -N109, the fuel pre-heating heater element -Z66 and the glow plug with flame monitor -Q8 can currently only be replaced together with the burner element (the electrical wiring is sealed in a shared grommet).

 




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