Anyone ever experiment with this? I saw in a manual that some of the older diesels (115 maybe?) had an oil bath air filter that had a "summer" and "winter" position that it could be rotated to. The snorkel pointed rearward in the winter position, purportedly to suck in warmer air.
Thought I might play with this to help with efficiency when the temp drops. The slight power loss doesn't concern me since I am mostly on level ground at 60ish mph. Even something as simple as removing the corrugated inlet air tube would at least pick up under-hood air. And the more adventuresome guy could build a snorkel that drew from near the exhaust manifold.
Thanks for all the constructive input.

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1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".