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      11-18-2012, 02:18 PM   #4
cstavaru
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Drives: 2009 335i M Sport Sedan 6MT
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You would put in on the other side of the coolant line, because the TD04 center core is level, so you need a level water line to match. The stock TD03 center core is cast with a lip, such that it matches the existing coolant line perfectly. I hope you get the idea: put the spacer on the other side, not where your arrow is.

And make sure you do NOT tighten the coolant line stud too much !