('79 300TD; W123)
Tonight I tried to replace my manual fuel pump 'cause the original one is leaking. I went to the dealer, pointed at the picture, and got the item ordered.
I went back today, 'cause I figured I needed a gasket or something. The dealer told me, "oh it comes with what you need". Ok. Back home I look at it carefully, and no, there's no "seal ring" in the package.
Anyway, I pop the old manual pump out (not a lot of room in there for a wrench of the appropriate size, eh?), pull the seal ring off the old pump, and hmm interesting, it doesn't fit on the new pump. Like, the OD of the seal ring is the OD of the pump minus the threads. So, obviously, the new pump did not get installed as it would not fit in the hole.
I'm wondering then a few things: might I have a pump from a different car? It looks like the pictures over here:
The fact that the new one doesn't have the seal ring is suspicious, but it seems odd that MB would have the wrong part in the bag. There's no way the part I have will fit. Any thoughts?
thanks,
-tom!