PAG 46 for Nippondenso compressors.

I'll wager they just didn't know the part number. Most MB fluids, lubricants, sealers, etc can be bought, if one can figure out the part number. The number is often only in service info which the parts guys don't have ready access to.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician