[Vwdiesel] 2000 TDI a/c question

[Shalyn Shourds]

It's well into a/c season here in Texas and I've noticed the unit in the 
TDI is getting a little weak.  That is, however, one area of 
mechanicking that I've not delved into much.

As best I can tell, the manual specs are for 203 psi on the high side 
and 17 psi on the low whilst running at high cool.  I borrowed some of 
Dad's time and gauges and we found 155 on the high side and 40 on the 
low side.  Sadly, there's no sight glass.  We looked hard and with all 
the time I've spent in the engine bay of this car, I would have found 
it.  Believe me.  The a/c's still dropping out on me after a while.  
Good to start and after 40 minutes or so, not as cool anymore.  I'd 
assumed it was the evaporator freezing up because of low coolant, but 
adding coolant barely changed the readings and the sweating in the seat 
feeling.

Any thoughts?  I'm ignorant enough about a/c that I don't even know what 
questions to ask.


Thanks much,


-Shalyn