Anyone have an exploded view of an R4 compressor or info/ pics of disassembly process?

I don't like the sound of the bearing on the R4 from my 240D parts car and would like to replace the bearing before using it.

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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked