Vacuum hoses/lines in engine refresh
Thread Starter
Super Member
Joined: Dec 2007
Posts: 980
Likes: 224
2005 S500 Designo
Vacuum hoses/lines in engine refresh
I'm thinking of doing some engine work on the car that would involve draining the intercooler system and removing the intercoolers (valve covers and gaskets).
Additionally I'd inspect and change/upgrade the vacuum system. I know some of my lines aren't seated properly, if at all.
Has someone done this job and can offer insights? Schematics and Part #'s of the vacuum system, or a WIS document #?
Additionally I'd inspect and change/upgrade the vacuum system. I know some of my lines aren't seated properly, if at all.
Has someone done this job and can offer insights? Schematics and Part #'s of the vacuum system, or a WIS document #?
Member
Joined: May 2020
Posts: 247
Likes: 57
From: Fort Worth
2005 CL55 AMG || 2005 CL65 AMG || 1989 560SEC
The system uses several y hoses (6010780245) but that's all I remember... I think 4 of them. The hard vacuum line is 0001581435.
I go about finding useful functional images of the back/ side/etc of these engines by looking at auction pics for pulled engines, some can be very complete. I've used zip ties instead of the goofy OEM crimp clamps for the soft to hard hose junctions.
I go about finding useful functional images of the back/ side/etc of these engines by looking at auction pics for pulled engines, some can be very complete. I've used zip ties instead of the goofy OEM crimp clamps for the soft to hard hose junctions.
Thread Starter
Super Member
Joined: Dec 2007
Posts: 980
Likes: 224
2005 S500 Designo
MBWorld Fanatic!
Joined: Feb 2012
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From: Phoenix
222 S-65
OP bleeding the charge cooling circuit is a PITA easily avoided by not removing charge coolers. Hold them up and out of the way while doing valve cover gaskets and vacuum line repairs. No doubt the plastic lines will break as soon as you give them side eye. Be very careful with the vacuum line that connects at the rear and goes under the intake. The plastic vacuum reservoir is under the intake and comes out once cylinder heads are out of the way.
Last edited by JohnLane; Apr 20, 2025 at 09:54 AM.
Super Member
Joined: Sep 2021
Posts: 537
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From: Ann Arbor, MI
2004 SL600
When I swapped to an AMG M275 I replaced all the sleeved plastic vacuum lines with bulk silicone lines. However I reused the MB boost pressure lines since they were still in good condition; I didn't know if the silicone lines were intended for boost.
The AMG engine had just been rebuilt and the plastic vacuum reservoir was not installed as it is crazy difficult to replace in its normal position. I found that I could fit it behind the engine on the right (US passenger) side after I moved the intercooler out of the way. That way if it ever fails, it will be trivial to replace.
The AMG engine had just been rebuilt and the plastic vacuum reservoir was not installed as it is crazy difficult to replace in its normal position. I found that I could fit it behind the engine on the right (US passenger) side after I moved the intercooler out of the way. That way if it ever fails, it will be trivial to replace.
