Thread: :: ECS Tuning :: X5 Oil Service Kits and Maintenance Products - Now Available !!!
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Old 02-05-2009, 01:06 PM
N S N S is offline
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Join Date: Jan 2009
Location: Bay Area
Posts: 430
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What is the large black o-ring in the picture used for? I assume the two smaller ones are for the drain plug?
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