The 2 sectional images show the repositioned barometric cell and water thermostat / idle air control of Mercedes Benz applications.
On Mercedes - the barometric cell acts directly onto the compensating lever (on Porsche its via an intermediate shaft ), and the thermostat/IAC valve acts vertically (as opposed to horizontally on the Porsche)
Here's a photo of the MB pump
You probably recognise the regulator section in another form......RSR.