Oh boy we may be fighting for the only check valve in the USA. My dealer ordered mine today and said there was only 1. We'll have to see wether there is just 1 or You ordered 1 and only 1 was left when I ordered mine. He did say the "clamping sleeve had to come from Germany.
Talked to the reliable W123 mechanic at the dealer. The check valve is pressed in just like the oil dipstick tube. So It may be some work getting it out. Not hard just cramped. The Dealer also said that the clamping sleeve is probably the attachment point for the drain tube. We looked and could not find any other part number for the connecting tube. So we concluded that that is what the "clamping tube" is.
I do thiink that I'm having the same problem as you are. The mechanic also supported my finding in both my car and yours.
I will ask him when the part comes in if any gasket sealer should be used in installing the check valve. I will treat it like the oil dipstick tube and follow the directions in the manual for that.
Don't forget to order your oil pan gasket. You'll need one to do the job. It might be a good time to change the oil and filter at the same time.
Dave
PS First one with pictures wins.  . But then of course a photo essay for the forum is required.
__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car
|