Mercedes-Benz Forum banner

what are these

1499 Views 11 Replies 6 Participants Last post by  kavadarci
i see them on many engines but what are these plugs for?


See less See more
1 - 4 of 12 Posts
Very good
Since I will have the block out was wondering if I should replace these.
Should I?

Sent from Free App
Do they have specific gaskets or I can make them myself?

Sent from Free App
Thank you everyone for the fantastic info

Sent from Free App
1 - 4 of 12 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.