Martin,

Is the check valve built into the leveling valve? The leveling valve has the bleeder screw and sometimes the leveling valve will go bad ($$$$).

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

That is my understanding Mike, and yes it is expensive.
m

__________________
Martin Ingram
Colorado Springs
2005 320 CDI
2006.5 VW Jetta TDI
1991 560SEL (179000 Sold)
1972 280SEL 4.5 ('The Lead Sled' 320000 miles when sold.)
1972 220D (225000 when sold)

It's also my understanding that the valve can be rebuilt....It has been explained in another post in this forum that the valve uses o rings internally and it or they are replacable if you have the tools to open the valve. Try a search to see if you can locate it. Hope this helps.

Brian

Bzoo - thanks for pointing that out. I will do the search and see what I can do about that valve - it would be great if I could rebuild it.

__________________
Henry Bofinger
1989 560 SEL (black/black)
2001 Audi TT Roadster (silver/grey)