I have a 2001 Cabrio and every now and then it will just die.
It happened a bit last summer and my mechanic said the battery plugs were loose.
They tightened and cleaned off the battery and everything was fine. It is happening
again. After driving for 40 minutes on the highway it staled in the middle of town while I
was slowing down. It boosted fine but a couple days later it died again, twice in one
day, but both times it will boost fine. We have done scans and my battery and
alternator are fine so what else could be wrong?