Larry--

OK, I just found your e-mail from a week ago and I see some of this is old
news from others who posted. But here's my 2 cents with part numbers if you
still need the advice. (or even if you don't;)

But here's the deal as I understand it. VW makes a switch that will turn on
your radiator fan at a cooler temperature than the stock switch. According to
the Bus Depot website the stock switch vs. "low temp." switch are as follows:

(these show the low speed on and high speed on in Celsius followed by the
part number on the website _www.busdepot.com_ (http://www.busdepot.com)    the
switches are about $12)

3-point, low temp version, 75-70/82-77c   25195948175

Stock, 3-point, 85-74/93-82c  251959481K

You can also search that site for a thermostat that will open at a cooler
temperature and in theory help keep your engine cooler. (from memory I think one
opens at 85c and the other is 87c, but I'm guessing on that so double check.)

BUT, here's the other part of the deal in my opinion. With your problem,
adjusting when the temp the fan goes on is a Band-Aid for some other problem.
Because except in EXTREME conditions the stock thermostat and stock fan switch
should keep your coolant temp at the correct level. Your current thermostat may
be failing and not opening soon enough. Or your radiator may be falling victim
to internal build up and not cooling as quickly as it should.

Best,
Jeff
83.5 Westy
LA,CA

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