I usually take the carpet completely out, pressure wash it to remove the odor, and dry it in a paint booth oven. Always works like a charm.

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2004 BMW 330ci Silvergray Sport Package, Cold Package, Xenon Headlamps, Premium Package, 6 Speed Manual, Build Date 9/03

Sold - 2003 325i Sedan Japanrot 5 Speed 8k Xenon Headlamps Build Date 11/02