Um, it's not just a cold idle problem. You loose power and performance but you prob haven't really notice. After the fix my car was getting 2-3mpgs better than before the fix. The car definitely had more pep in it's step. if you can take them up on the offer. The parts alone are 3k retail so you're still coming out ahead. Also, it only gets worse over time so better to fix it now than later.

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2004 X5 4.8is - X-pipe! V1 hardwired, Invision DVD headrests, N62 Intermediate Levers Fixed! FOR SALE!!! Contact me if interested!

1999 LSB M Coupe - Heavily modified
2008 M5 Sepang/Portland - Bone stock
2010 Mini Cooper S Laurel Sport Edition #1/100
2002 525iTouring - Alpine/Beige