Quote, originally posted by denm33 » Has anyone ever done DIY recharge (added freon) on the AC system?
I did and wrote about it, but it is so simple that I can write again.
Buy 700 ml (2 cans) of freon (R-134a or some such name) and the adapter with a gauge for the low pressure AC port. Both items are sold in all automotive stores and in Walmart-like stores.
Start the car, run VagCom. Clear the "low refrigerant level" DTC code. Unless you clear the code, the AC compressor will not start. OK, clear the code, and turn the AC temp control dials to LOW, so that AC runs at full blast. Connect the freon can to the low pressure AC port (the high pressure has a different connector, so you won't miss). Empty the can into the system. As the freon comes out of the can, frost will form on the outside of the can. You can immerse the the can into warm water while emptying to reduce frosting. Continue until the pressure in the low pressure part of the system is in the green, meaning fully charged area of your freon gauge.
1) You will need a VagCom to reset the error code stored in the memory, which is necessary to start the AC compressor.
2) there are plenty of detailed DIYs on the net about the AC recharging.
3) the low and high pressure AC ports are located on the driver's side of the engine compartment, not far from the jump start terminals.
Modified by ****us at 1:11 AM 6-10-2008