This cable is amazing; It is excellent quality and works with both my e46 and e38 (although in the case of e38 I needed an extra 20 pin adapter under the hood). The jumping button seems reliable enough and after installing the software I was able to fully program both cars! Wonderful. I'm deducting 1 star because the software/drivers they send don't work (or just can't use them). I had to search online for other software and drivers.
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