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Back to Factory Air Intake | 1980 300SD

Started by SuitGuy, 09 August 2021, 10:48 AM


Hello all!

I have decided to swap my aftermarket air intake system back to factory. I have yet to procure any parts and am unsure where to begin. I know I will need everything after the turbo. So far my cart includes the U-tube, air box, bracket, and bracket supports/rubber dampeners for the air box. Am I missing anything obvious? Also, is there a breather tube that goes from the U-Tube to the oil pan?

Any helpful literature or advice would be greatly appreciated.

Beige 1980 300SD


You probably need a little more......

Look at what's in the pictures, note what you don't have, and then we'll go from there.  The items that are "grayed" out are not applicable to your car. 
1966 250se coupe`, black/dark green leather
1970 600 midnight blue/parchment leather
1971 300sel 6.3, papyrus white/dark red leather
1971 280sel Black/black leather
1973 300sel 4.5, silver blue metallic/blue leather
1979 450sel 516 red/bamboo


I have some, maybe most of these parts.  You can have anything I have for the cost of shipping.  I will check tomorrow and let you know what I have.

I went to this setup...
1980 300SD


Wonderful! PM and discuss? Thank you for the schematics as well!
Beige 1980 300SD


I have a 300SD airbox that was restored by the late great Scott Alexander still sitting in the box he shipped it in because I went with a different engine in my car.

You can see his original listing here:

I would probably like $150 plus shipping like I paid Scott

Message me if you might be interested.
75 450SEL
80 300SD- ZF8 OM606 superturbo
83 300D- 6-speed M111 Kompressor
84 300D- 5-speed OM617
92 300D- 722.6 OM603 3.5
93 190E 2.6 Sportline LE x2- 6-speed M111 turbo, 3.0 M103
02 C320 Wagon
03 Sprinter 2500
06 E500 4Matic Wagon


Hello! Thank you to all who have replied in this thread, and a special thank you to Inshan. I have finally completed the daunting task of restoring my intake system to factory (or as close as I can get). For anyone in the future, I suggest you not remove the oil line going to the turbo and instead weave the bracket without the rubber feet underneath gently. Also, the bolts are M8x1.25 for the bracket bolts. I hope this helps someone in the future.
Beige 1980 300SD