Sparkplugs for 500E
 

Time to change plugs. I did a search in this forum and the consensus seems to be to stick with the Bosch Super Plug. My manual calls for "F9 DCO". I tried to find those, but everybody so far refers me to either the "2" or the "+4" plugs. Even the Bosch USA web site does not list the Super. Do I go to the 2 electrode Bosch plugs or the single electrode variety made by a different manufacturer (Champion, NGK, etc.)?
Any leads out there for the Bosch Super plugs and if not , which of the alternatives are recommended??

Thanks for your responses!!

Wolfgang

THE F9DCO ARE NOW THE F8DC4'S.

As you probably realize, this is one of those 'controversial' subjects on this board.
I have had excellent results with Bosch +4s on a wide variety of vehicles.
As a bonus, they do not need to be gapped, nor do they lose their gap over time.
They also seem to stay cleaner than standard plugs, even on known 'oil burners'.

WRM,
Thanks for the update. Still can't find anybody that sells the Super plugs... Any leads?



csnow,
Would you prefer them over Super plugs?

call phil at the fastlane/partsshop on this site. I am sure he can help you source them.

Alon

where are you located. maybe there's a parts wherehouse that I deal with that know's.

The Bosch Super plugs are available also at MBZ dealerships:)

WRM,
I am located in Yorba Linda, CA. I checked the usual suspects: PepBoys, Autozone, etc.

I appreciate everybody's replies!

Wolfgang