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.

Eric

Attached Thumbnails

 

Nope, normal.

__________________
Tjohn

82 300 SD
77 450 SL (gone)

Eric,

I made the same observations when I had a 300SD.

I used the emissions sticker near the radiator by the headlights to make sure all the hoses were there and also routed the correct way.

Haasman

__________________
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)

Have you removed the cover to see if those ports lead anywhere?

Sixto
95 S420
91 300SE
87 300SDL
83 300SD