Originally Posted by Bmoney2K4
Have any of you tried this soap to wash your car. I was at BMW today and saw this. It's a green soap that says BMW Car Shampoo costing 9 bucks. Do you think it's worth it to buy. It basically is enough for 16 uses or should I buy another brand of car wash soap to wash my car? If so, can you recommend some soaps I should buy either online or at a store like Pep Boys. Thanks.
You should post that question here.... http://www.e90post.com/forums/forumdisplay.php?f=13
If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger