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 R8 42 (2007- )
Audi A8 4E (2002 -)
Audi A6 4F (2005- )
Audi Q7 4L (2007- )
Audi TT 8J (2006- )
Audi A4 8K (2008-)

- N338 Damping adjustment valve rear left


-1- Damping adjustment valve

-2- Connector for damping adjustment valve

- The valve is built into the suspension strut.


- The lowest damping force is when a current of approx. 650 mA is applied to the solenoid.


- The highest damping force is applied when a current of about

2000mA is applied to the solenoid.


- Emergency running: There is no activation

of the solenoid.

The damping force corresponds to a mean value (caused by the pre-tension of the springs).

This means stable driving dynamics are safeguarded

even if the damper control fails.


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November 30, 2012
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