2021 740i Expansion tank connection

whenasked · 05-09-2026, 09:12 AM

Please see the circled part. Should there be a hose from radiator to expansion tank? pre-LCI has it? Did BMW delete this for LCI?

DBSnola · 05-10-2026, 04:36 PM

My 22 LCI has it. There's nothing attached.

whenasked · 05-10-2026, 09:15 PM

In this video,

, there is a hose that connects radiator to expansion tank. The car in this video is a Pre-LCI G12

05-09-2026, 09:12 AM	#1
whenasked Private First Class 63 Rep 152 Posts Drives: E90/G12 740xi Join Date: Sep 2009 Location: US iTrader: (0)	2021 740i Expansion tank connection Please see the circled part. Should there be a hose from radiator to expansion tank? pre-LCI has it? Did BMW delete this for LCI? Attached Images
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05-10-2026, 04:36 PM	#2
DBSnola Registered 8 Rep 11 Posts Drives: BMW G12 LCI Join Date: Jan 2025 Location: Houston, TX iTrader: (0)	My 22 LCI has it. There's nothing attached. Attached Images
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05-10-2026, 09:15 PM	#3
whenasked Private First Class 63 Rep 152 Posts Drives: E90/G12 740xi Join Date: Sep 2009 Location: US iTrader: (0)	In this video, , there is a hose that connects radiator to expansion tank. The car in this video is a Pre-LCI G12
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