Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

LinkBack Thread Tools Display Modes
Old 06-11-2003, 12:09 AM
Registered User
Join Date: Jan 2003
Location: USA
Posts: 699
For 300SD owners: is my 1984 300SD missing some vacuum hoses?

Dear friends:

Please take a look at the attached image first.

On the top of my camshaft (valve) cover, there's a black plastic box which is connected to the throttle linkage assembly. On the front side of the black plastic box is some rubber connectors to which several vacuum hoses are attached. However, there are 5 holes but only 3 attached vacuum hoses.

My question: is my 300SD missing 2 vacuum hoses, or these 2 remaining holes (marked in the image) are not used at all? If it's actually missing 2 vacuum hoses, please take a picture of your 300SD engine compartment and tell me where the 2 missing hoses should be connected to.

Thank you very much.


Attached Thumbnails
For 300SD owners: is my 1984 300SD missing some vacuum hoses?-vacuum.jpg  
Reply With Quote
Old 06-11-2003, 12:30 AM
billrok's Avatar
Registered User
Join Date: Dec 2001
Location: Chicago area
Posts: 242
Pull off the connector and look at the inside. You'll see that those holes have not been drilled out for accepting a hose. If you had those two hoses missing, you would have one heck of a vacuum leak me thinks.
Orland Park, IL
1985 300SD 215,000 miles
Reply With Quote
Old 06-11-2003, 12:02 PM
Old Deis
Posts: n/a
That the way my 300SD looks. Have checked some others and they have same configuation.
Reply With Quote
Old 06-11-2003, 12:40 PM
Thomaspin's Avatar
Join Date: Jun 2001
Location: CA
Posts: 531
You are OK

Here's how it should look. Only 3 hoses. Consider replacing trhe plug - they leak with age and can mess up your shifting.
Reply With Quote
Old 06-17-2003, 03:06 AM
Registered User
Join Date: Jan 2003
Location: USA
Posts: 699
Dear friends:

Thanks a lot for your information.

Thomaspin: I guess you are a scientist in the real life :-) Your technical presentations of car repair procedures are very clear, methodical, and to the point.

Some science history text books claimed that the Einstein was the best theoretical physicist but also the worst experimentalist (he would break things if he went to a laboratory). Ernest Rutherford was a complete opposite of Einstein (The famous Rutherford formula regarding alpha particle scattering was actually formulated by one of Rutherford's assistants, but the boss always took credit for everything :-). However, Enrico Fermi excelled in both theoretical and experimental physics.

Best regards,


Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 12:07 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page