If it turns out to be that the wires are on wrong, there are tiny numbers on the bosch cap that tell you which wire goes where.
Next time you might label the wires as they come off. Or you can sort of leave the wires on the old cap (remove the heater blower intake duct first) move the old cap out of the way a tad, shove on the new cap and then one by one replace the wires from the old cap to the new. And to get the wires off you should twist them a bit and then pull straight out (which ain't so easy) and don't wiggle them around.
Some people even take a picture first so they don't screw up. I don't know what kinda dork needs to do that though.
