I bought and installed this made in china one from Amazon in November 2018. still working good.

https://www.amazon.com/dp/B01BPEK7P2...ing=UTF8&psc=1

pain in butt replacing compressor on the ground, but thats another story.

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2006 E53 4.4 - bought July 2018
2005 E53 3.0 - drowned in Cyclone Mechunu May 2018
2006 E53 3.0 - sold South Africa June 2017