2009 Passat CC 2.0 TDI - Underbody Plastic Shield

[Deep Blue]

Found the part number of the underbody shield (taken from actual part removed):

CCW 3C0 825 237 H

ZSB 3C0 825 235 M



Apparently it has three purposes: reduces noise (probably why all those cubic dimples on the inside), improves aerodynamic airflow underneath the vehicle, and protects the underside of the engine (especially electrics) from road grime and water. I find it's also good to ensure no oil drips end up on the driveway!