Here's a list of some of the more useful part numbers for rebuilding the
vacuum system on an OM60x, and/or most 85-up MB's. (I think the older cars
used more solid colors, I didn't experiment with ordering those.) I found on
the EPC that the same part number can have a different description depending
on what chassis you look up. Some chassis have more info than others. For a
list, go to the "Intake & Exhaust Manifold" group in the engine section,
then look at the general parts diagram. Try this with several chassis (123,
124, 210 for example). I also found out that the pictures don't always match
up, and some may appear identical but can have widely differing sizes -
which is often NOT mentioned in the EPC! So I've been ordering select items
(1 each) to figure out what's what. Unfortunately some parts have rolled to
generic replacements, so we can never return the car to "original"
condition. For instance, gray pipe was replaced with black, the brown/blue
(for I/P shutoff circuit) has also been superceded to generic stuff, as well
as the black w/white stripe to the transmission. The hassle with this is
that the colors actually MEAN something, and when you use plain items
instead it can be confusing. Black is normally a vent line to the interior,
and MB has seen fit to supercede some p/n's to black. OK, enough rambling,
here's the currently available p/n's that I've confirmed:
Vacuum line ("plastic" Tecalan pipe, 4mm OD, 1mm ID)
=====================================================
000-158-14-35 - Transparent (sort of white)
000-158-89-35 - Transparent with red stripe
000-158-91-35 - Transparent with blue stripe
000-997-39-52 - Brown
001-997-81-52 - Black
116-276-06-30 - Black with white lettering
123-276-16-30 - Black with red stripe
Rubber stuff (3.5mm ID)
=======================
117-078-02-81 - 90-degree "L" shaped fitting
117-078-05-81 - 45-degree "V" shaped fitting
117-997-09-82 - Rubber hose (order by the meter)
Black "loom" (looks like heat shrink tube)
===========================================
040621-008200 - 8mm ID
040621-010200 - 10mm ID (most useful on my car)
040621-012200 - 12mm ID
040621-014200 - 14mm ID
(notice the pattern here? Larger & smaller are available too...)
the boost pressure line on the OM617's is larger than the vacuum
stuff. The OM60x engine boost line is the same as the vacuum stuff (4mm OD). Anyway:
617-070-07-81 - Line from intake to s/o valve
617-070-06-81 - Line from s/o valve to ALDA
They're under five bucks each, and I think they include the metal fitting on the
end.
601-078-06-45 - "F" shaped 2-port branch fitting - (great to replace the
4-port fitting after you yank the emissions stuff off a 124 diesel!)
Most of the pipe & loom is $1-$2 per meter. The "L" and "V" fittings are
$2-$4 each, the "F" fitting is ~$6. (All prices from Rusty.) If you
haven't replaced them in your car, it's a good idea to just do it. Total
cost is probably less than $20. It's amazing how much of that stuff snaps
like twigs when you start removing it!
Dave Meimann
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Advocacy
Engine
Hoses
