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  #1  
Old 08-07-2009, 06:55 PM
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85 Cali Vacuum bypassing question...

In the W123 85 Cali vac diagram, can I bypass number 84 and 81? It seems they do little more than EGR stuff. I have a severe vacuum leak at both of these components somehow, and I'm wondering if they're even necessary.

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Old 08-07-2009, 07:11 PM
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#84 and #81 can be removed provided you remove and re-route the related vacuum lines accordingly.
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Old 08-07-2009, 07:52 PM
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Quote:
Originally Posted by jt20 View Post
#84 and #81 can be removed provided you remove and re-route the related vacuum lines accordingly.
They're just for EGR, right? Do they serve any other particular purpose? I don't want to hurt another system in bypassing these things.
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'85 Cali 300D --- 193500 miles --- (Second one) Sold Nov '10

'82 300TDT --- 236,xxx miles --- (My first one) Sold July '09
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  #4  
Old 08-07-2009, 07:57 PM
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I've removed them both. If you trace the vac lines that come from them, you'll see they receive signals from other important elements that should not be removed, but send signals only to EGR and the ARV.
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Old 08-07-2009, 10:29 PM
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Mine are in a box in the garage someplace along with the EGR valve itself. No loss, the left inner fender is cleaner, and there are fewer places to have a vacuum leak.

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