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Old 02-17-2018, 02:17 AM   #2
Autocross Champion
Drives: CW 2011 GTI
Join Date: Sep 2012
Location: San Diego
Posts: 96
Had the same issue a couple years ago. My expansion tank developed a small hairline crack near the middle seam and slowly leaked fluid. Easy fix. Replaced with a Dorman tank from Amazon for $30. Took about 15 minutes and a quart of extra coolant.
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