black you say? that's likely to be the wrong one. you want a brown or blue one, black vw one is 1.4bar and the one you need is 0.3 bar. however aftermarket ones might not be the same as vw ones, best to whip the sensor out and read the markings. white is 1.8 bar with a yellow wire, brown or blue is 0.3 bar with the blue/black wire.