[Palmero]

2011 S550 4MATIC.

I normally change the oil with an extractor. Mostly because it’s much more convenient than crawling under the car to drain from the bottom.

This last time I decided to do just that and couldn’t clearly see the oil drain plug. Can anyone tell me if this is the plug?

thanks

 

[Hirnbeiss]

You are looking at it. The bolt closest to the center of the pic, points out sideways from the drain pan.

 

[Palmero]

 

[Zeevert]

Yes. That's it.
There's a copper washer that you're supposed to replace each time.
I've change my oil several times and never changed the washer.