Dr.T: There was also somebody on the Traxxas forum who noticed the same with the slicks.
Finally, I received a package from Alienpower.
But somehow, the ESC is not repaired like Bruno told me before. Also, the motor was not touched although he told me he would replace a broken sensor. Instead, there is a new ESC in the package. But an un-sensored one. And the Program Box (that wasn't delivered when I bought the set) is still missing but there is another USB Adapter.
Definitely not recommended.
And my VESC has been repaired.
The FET Driver has been replaced, now it's working again. Benjamin already did a no-load test with my 1717, runs well according to him. He also wanted to do more tests under load, very cool. Why the driver failed is unclear, Benjamin said it could have been a short somewhere. Well, I'm pretty sure there was no short, but who knows, maybe I sprinkled some solder somehwere and didn't notice. Next time I'll definitely make sure that there are no shorts.
Here is a video of the repair :)
[youtube]O7vaW27kdLo[/youtube]