Does anyone know if the new air compressors for a MY11 4.4TDV8 come pre-filled with compressor oil, or does oil need to be filled on first installation?

Thank you

Reading manuals and using google, it seems the compressor oil / refrigeration oil is added along with the R134a when the system is being gassed for the first time or whenever the system is drained and regassed

Does that sound right?
PAG 46 is the equivalent of what the workshop recommends as the lubricating oil

Oil needs to be added, when changing components in an old system, there should be a list of amounts to add especially for large components like the compressor and receiver dry.

It’s a good idea to replace the reciever dryer when opening the system to replace any components. And remember to back the system for 1+ hours to remove moisture or you can have performance issues as the TX valve can ice and internal corrosion can happen. 👍

Thank you

What do you mean by “back the system for 1+ hours”?

He means evacuate

Hth

As in above post, plus leave vacuum on for an hour to test for any leakage in the system.

Auto spelling correction… ‘back’ was supposed to be vacc, as in vacuum or evacuate 🤷

It seems that everyone (maybe correctly) has decided that the op is talking about Air Conditioning Compressor. My immediate thought was air suspension compressor because that IS an air compressor whereas the a/c compressor is not? BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

It was his second post where he talks about R134a that gives the game away 😇