[200q20v] Hole in radiator update. What did I do? AC prob/ turbo bypass pu mp

[Reid, Les C.]

Hi guys,
Well last weekend I installed my new radiator and put my car back together.

I also replaced the after run temp switch and thermostat. My turbo AR pump
had not been working for a few months and I had previously determined that
the sensor was bad (as per sjm, pump energized when I crossed the sensor
leads).  Now the AR pump cycles every single time the car is turned off (no
matter the run time).  
The switch closes too early: with the engine stone cold, I unplugged the
switch and confirmed it was open,  once I started the engine it did not take
2 min for the switch to close.  

I got the switch from Blau.  
Has anyone else had problems with the switches from Blau?
I have not called Blau yet to report the problem, any advise? 
I kept the old switch, so I could reinstall it while I wait on a
replacement, but that's a pain, I would rather just do the job once.

Les