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.


Audi A8 4E (2002 -)
Audi A6 4F (2005- )
Audi A5 8T (2008- )

Reading measured value block


To check the functioning of the Servotronic solenoid valve -N119 the following measured values can be used:


Measured value block 046:


Display zone 1:

Servotronic (off, on)


Display zone 2:

PWM signal to Servotronic (0 ... 100%)      



Measured value block 047:


Display zone 2:

Preset Servotronic current (0.00 ... 2.55A)


Display zone 3

Servotronic system information (Sys.OK; Sys.n.OK; faulty)



Control element test


The functioning of the Servotronic solenoid valve -N119 can be checked by the following control element tests:


I Servotronic with full power steering assistance


I Servotronic without power steering assistance


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