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Old 02-25-2020, 06:09 AM
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Join Date: Feb 2020
Posts: 3
Vacuum system mercedes w124 e300d automatic

Hello to all. I have a problem with my w124 e300 year 1994.
After I replaced all the glowplugs the transmission start to shift very bad and roughly maybe I didn't connect in right way all the vacuum system. Please anybody can help me with this?
engine om606.910
gearbox 722.4

I found on the internet the schematics vacuum but I dont understand where are a, b, and c in my car..
I posted also a photo: i have brown/blue pipe and white(is the exact color white? because on the schematics I dont understand what is sw?) pipe but I havent the other like the green and the other white..

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Vacuum system mercedes w124 e300d automatic-aswe1_opt.jpg   Vacuum system mercedes w124 e300d automatic-20200223_222947-3-_opt.jpg   Vacuum system mercedes w124 e300d automatic-20200223_223000-1-_opt.jpg  

Last edited by antoniog90; 02-25-2020 at 06:32 AM.
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Old 02-25-2020, 04:59 PM
Vice President of Snark
Join Date: Nov 2009
Location: Austin, TX
Posts: 1,230
When you pulled the intake manifold off, there are two vacuum lines that attach to the actuators for the plenum flaps. You have to make sure those get back on there well or you will BANG every shift.

'85 300TD "Puff The Magic Wagon" - Rolling Resto
'19 Mazda CX-9 Signature - Wife's sled
'21 Morgan 3-Wheeler P101 Edition
'95 E300d - SOLD
'84 300TD "Brown Betty" - Miss this one
'81 240D "China Baby" - Farm grocery getter

Last edited by andrewjtx; 02-25-2020 at 07:03 PM.
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