YUK!! What on earth is this leaking from a pipe ?

boxtaboy · 02-14-2009, 04:04 PM

I was cleaning the MAF on my wife's E91 320i earlier today and while the intake housing was removed, I noticed this pipe in the attached pic. YUK.

It seems to be going into a junction with three other pipes. The fattest pipe bottom left of the pic goes straight to the radiator. I tried to trace the pipe with the gunk around it and it seems to pass down to the right hand side of the engine and towards the bulkhead. Anyone got any ideas what the pipe is for and what the green gunk is ? As it's so close to the radiator pipe, I can only assume it's related to the cooling system. I checked coolant level and it's fine.

PeteJ · 02-14-2009, 04:06 PM

no pic mate

boxtaboy · 02-14-2009, 04:07 PM

Too quick for me

should be up now

battlehawk1025 · 02-14-2009, 04:09 PM

coolant

is my guess

PeteJ · 02-14-2009, 04:10 PM

wow! thats weird! The only thing i can think of is the A/C. Have you had an air conditioning service recently? Might be time for one!!

itsbrokeagain · 02-14-2009, 04:11 PM

thats coolant.

Has it been extremely cold latley? If it has the antifreeze expanded and froze (too much water content in the radiator), and pushed out around the clamp.

Either that or your system needs a good flush.

Id recommend you get that hose changed ASAP. Its been compromised.

boxtaboy · 02-14-2009, 04:25 PM

Thanks guys, yes it has been cold here but no more so than last year. I think the lowest temp we had is -4 C which shouldn't really cause that much expansion to the point of leaking like that. The green stuff is rather soft and gunky so I think it's quite fresh.

PeteJ · 02-14-2009, 04:28 PM

might be a daft question, but did it smell of anything?

Raja Ventureshield · 02-14-2009, 04:29 PM

it's bad ju-ju

boxtaboy · 02-14-2009, 05:30 PM

Quote:

Originally Posted by PeteJ

might be a daft question, but did it smell of anything?

Wasn't the first thing that came to mind when I saw it so sorry, no, I didn't get a whiff

CrimsonRedE93 · 02-15-2009, 01:43 PM

Perhaps you should taste it as well

It does look like coolant, normally you have to loose a lot to make it look like that and over a fairly long time.

Get it checked out as soon as you can.

beemerbird · 02-15-2009, 02:02 PM

Quote:

Originally Posted by boxtaboy

Wasn't the first thing that came to mind when I saw it so sorry, no, I didn't get a whiff

Have to say that I would have taken a sniff tbh.

Looks like a chemical reaction of some sort. Hope you get it sorted.

squeezebm · 02-15-2009, 02:12 PM

Quote:

Originally Posted by itsbrokeagain

thats coolant.

Has it been extremely cold latley? If it has the antifreeze expanded and froze (too much water content in the radiator), and pushed out around the clamp.

Either that or your system needs a good flush.

Id recommend you get that hose changed ASAP. Its been compromised.

+1 (and nothing to do with the A/C)

boxtaboy · 02-19-2009, 10:21 AM

Finally got into a stealers today. They identified the pipe as an auxiliary heating system pipe. They've ordered one in for replacement and they have to drain the system to complete the job. Funny thing, they looked up the part and there's only one in the UK.

02-14-2009, 04:04 PM	#1
boxtaboy New Member 0 Rep 18 Posts Drives: Porsche Boxster Join Date: Jun 2008 Location: Worcestershire iTrader: (0)	YUK!! What on earth is this leaking from a pipe ? I was cleaning the MAF on my wife's E91 320i earlier today and while the intake housing was removed, I noticed this pipe in the attached pic. YUK. It seems to be going into a junction with three other pipes. The fattest pipe bottom left of the pic goes straight to the radiator. I tried to trace the pipe with the gunk around it and it seems to pass down to the right hand side of the engine and towards the bulkhead. Anyone got any ideas what the pipe is for and what the green gunk is ? As it's so close to the radiator pipe, I can only assume it's related to the cooling system. I checked coolant level and it's fine. Attached Images
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02-14-2009, 04:06 PM	#2
PeteJ Diesel Head 12 Rep 550 Posts Drives: 320d M Sport Convertible E93 Join Date: Dec 2008 Location: Edinburgh iTrader: (0)	no pic mate
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02-14-2009, 04:07 PM	#3
boxtaboy New Member 0 Rep 18 Posts Drives: Porsche Boxster Join Date: Jun 2008 Location: Worcestershire iTrader: (0)	Too quick for me should be up now
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02-14-2009, 04:09 PM	#4
battlehawk1025 battlehawk1025 45 Rep 883 Posts Drives: 2007 335XI 6mt, SL 65 , M6 Join Date: Aug 2007 Location: wilmette/chicago,IL iTrader: (4)	coolant is my guess
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02-14-2009, 04:10 PM	#5
PeteJ Diesel Head 12 Rep 550 Posts Drives: 320d M Sport Convertible E93 Join Date: Dec 2008 Location: Edinburgh iTrader: (0)	wow! thats weird! The only thing i can think of is the A/C. Have you had an air conditioning service recently? Might be time for one!!
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02-14-2009, 04:11 PM	#6
itsbrokeagain 311 Rep 15,745 Posts Drives: 1999 528iT, E53 X5, E46 325xi Join Date: Mar 2007 Location: Strong Island iTrader: (7)	thats coolant. Has it been extremely cold latley? If it has the antifreeze expanded and froze (too much water content in the radiator), and pushed out around the clamp. Either that or your system needs a good flush. Id recommend you get that hose changed ASAP. Its been compromised.
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02-14-2009, 04:25 PM	#7
boxtaboy New Member 0 Rep 18 Posts Drives: Porsche Boxster Join Date: Jun 2008 Location: Worcestershire iTrader: (0)	Thanks guys, yes it has been cold here but no more so than last year. I think the lowest temp we had is -4 C which shouldn't really cause that much expansion to the point of leaking like that. The green stuff is rather soft and gunky so I think it's quite fresh.
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02-14-2009, 04:28 PM	#8
PeteJ Diesel Head 12 Rep 550 Posts Drives: 320d M Sport Convertible E93 Join Date: Dec 2008 Location: Edinburgh iTrader: (0)	might be a daft question, but did it smell of anything?
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02-14-2009, 04:29 PM	#9
Raja Ventureshield Major General 298 Rep 5,686 Posts Drives: BMW M3 coupe Join Date: May 2007 Location: Northern VA iTrader: (6)	it's bad ju-ju __________________ ************************************* Un4gettable 435i Extended Test drive thread: http://www.f30post.com/forums/showthread.php?t=881491
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02-15-2009, 01:43 PM	#11
CrimsonRedE93 Major 108 Rep 1,085 Posts Drives: Le Mans Blue E93 330d+ Join Date: Nov 2007 Location: West Sussex iTrader: (0) Garage List 2007 E93 320I SE [0.00]	Perhaps you should taste it as well It does look like coolant, normally you have to loose a lot to make it look like that and over a fairly long time. Get it checked out as soon as you can.
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02-19-2009, 10:21 AM	#14
boxtaboy New Member 0 Rep 18 Posts Drives: Porsche Boxster Join Date: Jun 2008 Location: Worcestershire iTrader: (0)	Finally got into a stealers today. They identified the pipe as an auxiliary heating system pipe. They've ordered one in for replacement and they have to drain the system to complete the job. Funny thing, they looked up the part and there's only one in the UK.
	Appreciate 0 Quote

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