Broken piece where oil filter attaches

I was changing my oil today (2003 A6 2.7t) and noticed a piece that is broke where the oil filter attaches.
 
I searched the web and this site to see if I could find anyone with the same issue, but had no luck.
 
Does anyone know what this piece is for and if it is a big deal if it is broke/missing?
 
Thanks!


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I know the oil has to go back into the engine here, but is it supposed to be completely open, it looks like there is a piece that was once there, now partially broken.

I did an oil change on the weekend - the flange of the oil cooler looks the same as yours.

Is this as it supposed to be or we have a problem?

2.8 and  1.8T engines have different flange - with 9 holes for oil circulation.

There is only one open hole (at 3 o’clock - the left one (9 o’clock) is plugged by plastic.

  Anybody having schematics or personal observations?

never noticed it... when i pull and service for a 2.7 imma have to take a closer look.

Neither Etka, nor Elsa provide detailed view.

Have to check with dealers....

Surprised about the lack of feedback.

So many modds experts and such a lack of basic info

Thx,