View Poll Results: Oil flow direction
Arch cooler --> Center cooler
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2
40.00%
Center cooler --> Arch cooler
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3
60.00%
Voters: 5. You may not vote on this poll
Oil flow direction
#1
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Thread Starter
![Question](https://mbworld.org/forums/images/icons/icon5.gif)
Does anyone know which way the oil flows through the coolers?
Is the arch cooler "Radiator - Oil Cooler" (assuming there's a bypass inside until the oil reaches a specific temp) fed first then on to the center cooler or vice versa?
Is the arch cooler "Radiator - Oil Cooler" (assuming there's a bypass inside until the oil reaches a specific temp) fed first then on to the center cooler or vice versa?
#2
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
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#4
MBWorld Fanatic!
Thread Starter
The line from the center cooler goes into the bottom of the arch cooler. I would have thought the inlet would be the higher port. If the inlet is the higher port the arch cooler gets fed first.