Location of oil dipstick in a C230?

Hi all, first post here. I know it sounds like a foolish question, but when I visited my girlfriend out of state I did some basic maintenance to her '99 C230 Komp but couldn't find the oil dipstick. What I DID see was a little tube sticking up near the firewall and valve cover (passenger side). Is this where the missing oil dipstick goes? I'm I'm pretty sure that the '99 C230 still had a manual dipstick. I'm back home so I can't go there with a manual and check her car again.

Also, what would be the best place online to buy OEM Benz parts and have them shipped quickly to you door?

Thanks in advance!