220d which direction does the oil filter screen go on? In the picture attached do I have the direction correct? First oil change and it fell out into the drain pan before I got a look at it.

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Not sure if the link below is active, if not search on it within this website, it will help.

W115/OM616 Oil Pre Filter: Rinse and reuse or replace?

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer

Thank you! That helps.
What about the spring? I have found one source saying the wide part of the spring should be down, and another saying it should be up?

The fat part of the spring should be up.

The spring is item 5 on page 3 of the attached pdf.
http://eva2.homeip.net/W115/program/Engine/615/18-005.pdf

Link to the W114/W115 FSM: Mercedes-Benz Model 114/115

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78 W116 300SD 'Desert Rose' new as of 01/26/2014
79 W116 300SD 'Stormcloud' RIP 04/11/2022

Agree wide part of spring up toward filter...gotta love that filter set-up!

220D should have the "oel" cap on the injection pump, make sure the injection pump has oil in it, they're not pressure oiled. There is a procedure for flushing
out the pump cavity with mineral oil, I've never done it.

Good luck, post some pics!

__________________
"Rudeness is a weak man's imitation of strength" - Eric Hoffer

Thanks again! I thought so. I have a Chilton book that has the wide part of the spring up, and that makes sense since the smaller part of the spring would go into the tapered part of the canister and the wide part against the flat part of the filter. But what confused me was that the previous owner had it on wrong, and then when I was trying to find information about the filter screen I came across a ************** video where he does it wrong!

Edit: lol it bleeped out the name of the site the video is from but I'm sure you know from the picture.

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The gloves are a giveaway that it's from Kent's Source of Mercedes.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.