435i cooling fan problem

law2004 · 12-14-2016, 12:02 AM

Hi,
I was driving my 435i today, slowed down quickly on the highway and the radiator fan turned on 100% sounded super loud. Wanted to get To my destination before I restarted my car. Once i restarted everything went back to normal. Also it's 9 degrees outside.
Excuse my language

law2004 · 12-14-2016, 11:53 AM

BUMP?

F32Fleet · 12-15-2016, 05:54 PM

how many miles? I wonder if it's water pump related. It's electric and IIRC starts acting like this just before it fails.

madmonkey · 12-16-2016, 03:24 PM

Congratulations - you have unlocked the hidden BMW Snow Blower function...

But seriously, that's probably an indication that the waterpump is failing. That same sound happened on my 330i before its waterpump crapped out without warning.

Send video - minus excessive language to service department at your dealership of choice and book appt. if under warranty.

3toM · 12-17-2016, 03:15 PM

Sounds like my 2013 335i. Just got out of shop for issue like this intermittently. apparently was a fault in electric fan. car did fine on the way home after fan replaced. More time will tell for sure. Paperwork says car had fault code 1A2108 and refers to BMW SIB 12 29 14 (which is what I was searching for when I stumbled upon your thread).

12-14-2016, 12:02 AM	#1
law2004 Banned 38 Rep 148 Posts Drives: 2015 435i Join Date: Apr 2012 Location: Illinois iTrader: (0)	435i cooling fan problem Hi, I was driving my 435i today, slowed down quickly on the highway and the radiator fan turned on 100% sounded super loud. Wanted to get To my destination before I restarted my car. Once i restarted everything went back to normal. Also it's 9 degrees outside. Excuse my language
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12-14-2016, 11:53 AM	#2
law2004 Banned 38 Rep 148 Posts Drives: 2015 435i Join Date: Apr 2012 Location: Illinois iTrader: (0)	BUMP?
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12-15-2016, 05:54 PM	#3
F32Fleet Lieutenant General 3570 Rep 10,351 Posts Drives: 2015 435i Join Date: May 2005 Location: Southeastern US iTrader: (0)	how many miles? I wonder if it's water pump related. It's electric and IIRC starts acting like this just before it fails. __________________ "Drive more, worry less. " 435i, MPPK, MPE, M-Sport Line
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12-16-2016, 03:24 PM	#4
madmonkey Lieutenant 200 Rep 536 Posts Drives: 2013 335xi Alpine White Join Date: May 2010 Location: GTA iTrader: (3) Garage List 2013 335i xDrive [0.00]	Congratulations - you have unlocked the hidden BMW Snow Blower function... But seriously, that's probably an indication that the waterpump is failing. That same sound happened on my 330i before its waterpump crapped out without warning. Send video - minus excessive language to service department at your dealership of choice and book appt. if under warranty.
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12-17-2016, 03:15 PM	#5
3toM Lieutenant 18 Rep 511 Posts Drives: 2013 335i EB Msport Join Date: Oct 2008 Location: SoCal iTrader: (0)	Sounds like my 2013 335i. Just got out of shop for issue like this intermittently. apparently was a fault in electric fan. car did fine on the way home after fan replaced. More time will tell for sure. Paperwork says car had fault code 1A2108 and refers to BMW SIB 12 29 14 (which is what I was searching for when I stumbled upon your thread).
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