Radiator leak & replacement question.

bosl_y · 11-10-2024, 10:18 PM

Hey all, noticed my 2015 xDrive28i was slowly losing coolant. Saw a little puddle of coolant on the driver’s side towards the middle bottom of the radiator and saw it starting to leak/seperate.

Anyone have any replacement radiator recommendations? Saw that the Mahle Behr is having that same issue from the reviews on FCP Euro so not too sure about using that as a replacement. Any other forums / guide on replacing it as well? Thanks.

maxwmiller · 11-16-2024, 10:12 AM

Address this asap, ignoring that you are losing coolant is the best way to need to buy a new engine. Ask me how I know!

Go with OEM. The N20 and N55 radiators are the same, no real need to upgrade. FCP offers lifetime replacement if something goes wrong.

SharpAndCunning · 02-02-2026, 10:55 AM

Did you ever replace your radiator? What replacement did you go with?

11-10-2024, 10:18 PM	#1
bosl_y Registered 0 Rep 3 Posts Drives: BMW X1 xDrive28i Join Date: Oct 2023 Location: Colorado iTrader: (0)	Radiator leak & replacement question. Hey all, noticed my 2015 xDrive28i was slowly losing coolant. Saw a little puddle of coolant on the driver’s side towards the middle bottom of the radiator and saw it starting to leak/seperate. Anyone have any replacement radiator recommendations? Saw that the Mahle Behr is having that same issue from the reviews on FCP Euro so not too sure about using that as a replacement. Any other forums / guide on replacing it as well? Thanks.
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11-16-2024, 10:12 AM	#2
maxwmiller Private First Class 19 Rep 123 Posts Drives: (formerly) 2013 X1 xDrive2.8i Join Date: Dec 2022 Location: CA iTrader: (0)	Address this asap, ignoring that you are losing coolant is the best way to need to buy a new engine. Ask me how I know! Go with OEM. The N20 and N55 radiators are the same, no real need to upgrade. FCP offers lifetime replacement if something goes wrong.
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02-02-2026, 10:55 AM	#3
SharpAndCunning Lieutenant 134 Rep 486 Posts Drives: 2014 X1 35i Join Date: Jan 2015 Location: . iTrader: (0)	Did you ever replace your radiator? What replacement did you go with?
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