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E30 Bosch - Behr compressor large-hose fitting
This article discusses the large-hose fitting on the E30 Bosch - Behr compressor for the E30 with the main focus being on why we sell this separately.
Last Updated: 07/24/2020
Parts Group: Air conditioning compressor
If you're not here for the technical analysis but would rather buy a used unit from us, guaranteed to work and fit, then please select the link below.
The information herein is based on my own car and interaction with a customer.
- Air conditioning compressor (Bosch-Behr), as on: E23, E24, E28, E30, Part Number: 64521377946
- Air conditioning compressor (Bosch-Behr), as on: E30, Part Number: 64528363550
- Air conditioning compressor (Nippondenso brand), as on: E30
- Air conditioning compressor, as on: E23 E28 E30 1984-86, Part Number: 64521374959
- Air conditioning compressor, as on: E30 E32 E34, Part Number: 64521386948
The customer sent in his old compressor, along with the large-hose fitting, and received back a renewed compressor albeit without the fitting; I gather this rebuilder omits that part. The customer, understandably, needed that part so as to make the compressor work on his car so we sold him just the fitting, by itself.
This was a useful learning experience since it taught us that for one or more vendors, there's no point in including the fitting when sending the old compressort in for a rebuild, and it might actually cause problems since the renewed unit might well come without that fitting. By implication, this is a removable part, and we can sell these compressors to our own customers, and some might well not value the fitting being included, which means we can sell the fitting separately to a customer who does value it.
To remove the fitting, I removed two size 4 Allen head screws, and that gently banged the side of the fitting back and forth with a soft-head small mallet until it came loose. The fitting is more than just a large hose nipple; there's a fairly complex internal structure too, which appears to be a filter of sorts.