So far there hasn't been any rattles. Car seems to be 'stiffer' too.
The 'compensation' the gm zone rep promised hasn't arrived yet - so another call to cadillac customer service will occur in the next day or so.
The 1st time the dealer mechanic fixed the rattle, it held for 2-3 months.
Will see if the webasto guys fix helps GM out of a freebie repair - they only paid for the rental car.
