Dry and Brittle, what???



Am I correct in thinking these large diameter vents provide fresh air into the cabin? I say this because each seems to be attached to the backside of the front grill. Thanks.
2003 Mercedes E500, 81k original miles.
Right side, driver pov.
Left side, driver pov








the interior air intake filter and inlet is located in the back left of the engine compartment as you are standing in front of the car. 10mm plastic nut, lift cover, pull and replace activated charcoal filter. Check your auxiliary battery while you are in there; if the main battery fails, that auxiliary battery is the only source of power for your brake-by-wire SBC system.









