2009 A4 TSI

Franco Barber franco.barber at gmail.com
Mon Jun 2 12:05:51 PDT 2014

Hi Nick,
I think this self study guide may help.
SSP 922903

It describes some of the operation of the 2.0L engine in the 2009+ A4.
One of the things that it says is that the engine is an evolution of an
earlier VW/Audi engine, and this is the study guide for that earlier engine.
SSP 824803

Between these two study guides you should be able to learn a lot about how
the whole thing works.


On Mon, Jun 2, 2014 at 2:51 PM, Nick Lawrence <nick at beol.net> wrote:

> Hello,
> I moved up about 2 decades in Audi technology and am getting a 2009 A4
> Avant TSI.   I would like to know If there are knock sensors (most likely),
> and how they function.
> Meaning if there is knock does the computer make changes and if it
> continues to knock create a stored code?
> Is there ever any driver visible indicator that there is engine knock?
> Any insight will be appreciated.
> Nick   central Ohio
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Franco Barber
franco.barber at gmail.com

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