2004 Mercedes Benz C320 Fuel filter location.

This will be in one of two locations on this vehicle. The first possible location is under the rear drivers side seat area, under the vehicle. There will be a black plastic cover over the entire area (making the fuel filter very difficult to locate). This plastic piece will be held on by 3-4 plastic 10mm nuts and is roughly 12" square. The other location is behind the wheel well cover on the rear passanger wheel.