That fuse may have failed even though it looks OK. Check for power on both sides of the fuse.
If you have power on both sides, you could have one or more plugs faulty. The other thing to check is for power at the plugs when the engine is cold and the ignition is first turned on.
------------------
Benzmac:
Donnie Drummonds
1992 500E (very soon I hope

1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM