I need to replace the shut off valve(or the o ring)on my 98 300 turbo diesel.Can this be done without removing intake manifold?Cant find a price for this part anyone know approx.Thanks for any advice.

Here is the link for the o-ring. Phil doesnt show the shut off valve in his catalog. As i recall it was ~$200 for my 99 from the dealer.

It is possible to R & R without removing the manifold. Pull the windsheild washer bottle to gain some room to work.

If you only have a leak just replace the o-ring. If shutting down while driving consider the valve too.

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=mercedesshop&clientid=catalog.mercedesshop&baseurl=http://catalog.peachparts.com/&cookieid=1U21771E11WQ1B084A&year=1998&make=MB&model=E-300DT-001&category=D&part=Shut+Off+Valve+Gasket

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Call Phil for a price on the valve...as I recall it is closer to $125. The o-ring is about $1 and most of the time that is what is leaking. As stated above it can be replaced without pulling the IM, takes about 15 minutes.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

I have replaced the o-ring on my shut-off valve w/o removing the intake. However, everything else does seem to require removing the intake or the washer bottle.

Thanks for the help.This is a very helpful site!