Info and Specs for E53 AC compressor and compressor oil fill volume

[David.X5]

I have been looking for this and have seen a number of posts where other people had asked about the correct oil for a E53 X5 AC compressor. I finally did some homework and this is what I found.

Denso is said to be the OEM manufacturer for the compressor. The one I removed from my X5 does say Denso on the clutch.

The DENSO part number for the compressor is 471-1380 (which you can buy from various sources for $200-$300 online).

DENSO Tech Support says the correct oil is DENSO ND-8 which they also say is hard to find. They said PAG-46 may be substituted.

They said the correct fill amount is 110 cc (3.72 fluid ounces).

Good luck. Use at your own risk...