Anyone else ever have this problem?
Doing preventive maint on my 05 Base. 70k miles. Removed original fuel filter and installed a WIX filter which looked exactly like the one I removed except part number was different and it did not have the little mercedes star on it.

Problem. Car now takes 10-12 seconds of cranking to start. Used to start in say 2 seconds. Question - Is there any sort of check valve in the Mercedes unit? Issue seems to be fuel pressure has to build up before engine can fire. If I shut it off and wait a small while, it starts immediately. Let it sit 5 minutes or so and it reverts to the long cranking.

Is this an amazing coincidence and a fuel pressure check valve elsewhere in the system failed just when I changed the filter? Or is my WIX filter different than the Mercedes?

BTW, I am a long time forum member but was unable to log on and had to create a new User Name as I hope to hear back from someone

HP