If your old evaporator was leaking freon, then it was most likely also leaking oil. Which means you really have no idea how much oil is presently in the system.

If you want to do this properly, you'll need to remove the compressor and drain/measure the oil present. The amount of fresh oil you add to the system will be dependent on the amount obtained from the compressor. The vehicle was factory filled with ND-8 PAG oil, so use the same to refill (MB # Q 1 13 0001). And since the car is 5 years old, replace the receiver/drier.

All the information you need to service this system, including oil fill values, can be found at www.startekinfo.com. Access charge for 1 day is now $18.00