I just replaced my evaporator on a E320 Wagon 1995 and I am going to replace the compressor and dryer.

I researched the forum and manual and I need 120 ml of PAG oil of viscosity of 46!

Now the question is weather to put 60 ml into the high pressure side and 60 ml in the low pressure side or everything in one port and if does it matter which?

Thanks... Are there good instructions for a DIYer to charger the system. I have a pump and gauges. ... I would like to charge it with exactly the right amount but doing it with cans seems a hit and miss!

Thanks...