A/C System, Oil Quantity

64 50 A/C system, oil quantity E81/E82/E83/E87/E88/E91/E92/E93/N52/N52K

The data on the A/C compressor rating plate are definitive

Refrigerant oil

Fill quantity R 134a 180 ± 10 g

Sourcing reference in Parts and Accessories Catalog