Only to post in a forum that is not dedicted to VW!

Also, if money is short, the cheapest thing is a can of STP, and more
oil assuming it is burning oil. A rebuild would be a really stupid
idea on this car, as regardless it will be worth nothing, rebuilt or
not.

White smoke indicates water vapor, your head gasket(s ) or worse, is
leaking coolant into the combustion chamber.
Blueish white is oil burning, one way to tell one from the other, is
on these cool spring days when the humidity is high you will see more
of it and it will linger around, on dry days the cloud will dissipate
quickly..
If it is oil burning the cloud wafts down the road a long time before
becoming invisible

Small amounts of oily residue is not uncommon on a car with this
millage
If only the head gaskets would fix the problem it still be an
expensive project....... get a good mechanic to check it out, and be
sure to be prepared to sign a death certificate...

Meanwhile........
Check the coolant in both the over flow tank and, when cool, in the
radiator, use 50/ 50 mix of water & coolant to maintain proper levels.
Start shopping for a new used car...... yours is about to get
expensive
Change the oil if its been more than a few months... it could be
nothing more than crankcase dilution (Oil contaminated with fuel due
to poor fuel management caused by your air flow sensor having gone
south amongst other things)
VW = Volkswagen by the way and FORD = Found On Road Dead     (yes A
Mercury IS a FORD)
Best of luck and better tomorrows