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      03-14-2018, 09:28 PM   #4
frankenm
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Drives: 12' X5M, 99 M3
Join Date: Jan 2016
Location: San Diego

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These are designed to vent from the top. I wouldn’t worry if it’s the first time but if it happens often this is a sign your power steering pump is going out ... cost wise is 750-3k depending on if you DIY and get new or rebuild parts or stealership

Mine did this for about a year before it got really bad.

Better to replace since this fluid does not mix well with very high exhaust temperatures.

New pumps are around 1.2k then also should get new hoses, reservoir, fluid.
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