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BMW 2007 X3 3.0si, 1999 ML 320 -Sold-
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Discussion Starter · #1 ·

So this might seem like a REALLY dumb question, BUT i figure i'd ask and sound stupid than something be wrong and have to pay $$$ for it later:

On the Reservoir, there are three tubes that are hooked up, one on the left and two on the right. The two on the right have O-rings on them, while the one on the left does not. The one on the left leads to no-where, just an open tube. Is it just to keep the pressure equalized in the tank or what? is there a threat of something flying into the tube and into the tank? :eek:

I looked at several other's engine and looks like the 320's all have this. Not worried, just curious. :p
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