do a search on fuel filters, I'm sure I have written about fuel filter changes on my non-kompressor 1998 C230, and would think things are similar.

But concerning your stumble. About a week ago when doing an oil change, my oil filter cap wrench pulled a small brown vacuum hose ( this hose is small diameter) from it's insertion point under the first intake runner.
I didn't realize at first and the first few times I started car there was significant engine stumble. A few dyas latter my CHECK ENGINE light went on and I discovered the disconnected hose.

I realize your cars a Kompressor and different engine, but just an idea.

Anyway about fuel filters, be aware of the direction arrow on your filter, use your vehicle VIN number when ordering a new filter from the DEALER or FASTLANE. Have some hose clamps, disconnect the battery, and a new filter may be slightly larger than the older one - at least that was my situation.
Buy new circular hose clamps that tighten woth a screw driver or if your car has the clamps that need a narrow design pliers to release and install and you want to use that design again have then get the correct original style clamps with the pliers.
Also I use a dedicated hose clamping device to squeeze fuel lines to prevent gas from spilling when filter is off.