Found coolant leak, need opinions

fravel · 10-07-2013, 08:19 AM

Hey Gentlemen,

During a routine oil change this weekend I noticed some specks of coolant floating around my engine bay. A little bit of looking around and I found this:

The leaking hose comes down off the fat tube running between the oil filter housing and the radiator, then runs under the airbox and along the drivers side of the engine bay, and appears to be attached to the rear wall. I found this diagram on realoem.com that shows the tube I need but doesn't list the description:

I dug further and found this diagram that appears to show the same hose and has it listed as "HOSE F ENGINE INLET AND HEATER RADIATOR" PN: 64219178427, however, the diagram really isn't very clear.

This is where you come in; can anyone here that has a bit more experience with these cooling systems confirm that I'm looking at the correct part? I don't want to tear it apart only to find that the replacement I bought isn't the right thing. Bonus points to anyone that has already dealt with this sort of leak and can give me some guidance on the best way to do the repair.

Car is an '06 330i. Thanks ahead of time for the help.

fravel · 10-07-2013, 10:58 AM

Here's a little clarification for anyone that is confused:

I've circled the location of the leak. What I need to do is confirm that the circled hose in this diagram is the same hose listed as #1 on the last diagram of my 1st post.

GoRomeo · 10-07-2013, 12:10 PM

Why dont you call dealerhip parts store? I am sure they can help you better than us. Keep us posted.

fravel · 10-07-2013, 01:24 PM

Quote:

Originally Posted by GoRomeo

Why dont you call dealerhip parts store? I am sure they can help you better than us. Keep us posted.

Discovered the leak yesterday morning, parts store was closed. I'm at work today and haven't had a chance to swing by. I'm also worried that they're going to want to charge me the $160 diagnostic fee just to provide the information.

Cesarek94 · 04-18-2016, 08:53 AM

This thread is old but did you ever get to fix it? This hose ripped on me was it the one on the link? And how was the repair thanks

Efthreeoh · 04-19-2016, 08:31 PM

Quote:

Originally Posted by Cesarek94

This thread is old but did you ever get to fix it? This hose ripped on me was it the one on the link? And how was the repair thanks

I posted a DIY for replacing all the N52 coolant hoses. The DIY has P/N, diagrams and specific detailed instructions on replacing each hose.

10-07-2013, 08:19 AM	#1
fravel Colonel 1645 Rep 2,494 Posts Drives: Monaco Blue '06 330i Join Date: Aug 2012 Location: The Nasti 'Nati iTrader: (1)	Found coolant leak, need opinions Hey Gentlemen, During a routine oil change this weekend I noticed some specks of coolant floating around my engine bay. A little bit of looking around and I found this: The leaking hose comes down off the fat tube running between the oil filter housing and the radiator, then runs under the airbox and along the drivers side of the engine bay, and appears to be attached to the rear wall. I found this diagram on realoem.com that shows the tube I need but doesn't list the description: I dug further and found this diagram that appears to show the same hose and has it listed as "HOSE F ENGINE INLET AND HEATER RADIATOR" PN: 64219178427, however, the diagram really isn't very clear. This is where you come in; can anyone here that has a bit more experience with these cooling systems confirm that I'm looking at the correct part? I don't want to tear it apart only to find that the replacement I bought isn't the right thing. Bonus points to anyone that has already dealt with this sort of leak and can give me some guidance on the best way to do the repair. Car is an '06 330i. Thanks ahead of time for the help.
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10-07-2013, 10:58 AM	#2
fravel Colonel 1645 Rep 2,494 Posts Drives: Monaco Blue '06 330i Join Date: Aug 2012 Location: The Nasti 'Nati iTrader: (1)	Here's a little clarification for anyone that is confused: I've circled the location of the leak. What I need to do is confirm that the circled hose in this diagram is the same hose listed as #1 on the last diagram of my 1st post.
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10-07-2013, 12:10 PM	#3
GoRomeo Brigadier General 964 Rep 3,856 Posts Drives: 330i, 135i Join Date: Feb 2006 Location: San Diego CA iTrader: (0) Garage List 2008 BMW 135i [9.50] 2006 330i [6.75]	Why dont you call dealerhip parts store? I am sure they can help you better than us. Keep us posted.
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04-18-2016, 08:53 AM	#5
Cesarek94 New Member 0 Rep 11 Posts Drives: 06 325i Join Date: Apr 2016 Location: Chicago iTrader: (0)	This thread is old but did you ever get to fix it? This hose ripped on me was it the one on the link? And how was the repair thanks Last edited by Cesarek94; 04-18-2016 at 09:04 AM..
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