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Old 08-17-2008, 03:12 AM
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Join Date: May 2008
Posts: 11
Help, on 103 1991 190E vaccum lines

Got myself into some trouble on this 103 engine rebuild.

Can't figure out where is the vaccum line to the nipple (near white tag #5) at the far side of cyl #6 is/goes. My photos during teardown did not show this section of the engine.

The short hose on Cyl #6 near the head goes to a vaccum line from below the fire wall. This may be the climate control vaccum hose to run the vaccum actuators.

See attached photo

Robert Illan

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Help, on 103 1991 190E vaccum lines-103-1991-190e-intake-manifold-vaccum-lines-dsc02821.jpg  
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Robert Illan
1991 190E 2.6L 190Kmi
engine tear down
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Old 08-17-2008, 01:51 PM
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Join Date: Oct 2004
Posts: 4,177
There should be a grey line coming out of the firewall roughly above the nipple in question. As if comes through the firewall it should pass nearby the brake booster into some yellow check valves. This is the vacuum supply for the climate control. The line going down at the #6 runner goes to the transmission modulator.

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