Oil in Water

simonV40 · Nov 6th, 2008, 13:47

Right problem!!
Just serviced my 1998 V40 1.9TDI today....,new air filter,oil filter and new oil etc.,
Checked water reservoir....OIL thin film of oil in water!!!! immediate thoughts **** head gasket...but no loss of power, no over heating no anything runs fine..so flushed out water system no oil in radiator or on water in bucket??? washed out reservoir refilled all good just got home thin film of black oil in reservoir...NO WATER IN OIL.., no visible leaks from head gasket?? thought maybe some one filled wrong bit with oil?

Anybody got any ideas or had similar problem???

simonV40 · Nov 6th, 2008, 15:34

Anyone????

Madhouse · Nov 6th, 2008, 16:21

Doesn't sound too good huh?

Is it using any water at all? I'm no expert but oil in the header tank usually points to headgasket issues.

I'd nip to a local garage and ask them to bung a gas analyser in the header tank to check for combustion fumes - this will (help) identify any gasket issues.

Breather pipes? Intercooler?

Tricky one. Sorry.

simonV40 · Nov 6th, 2008, 16:56

cleaned out all pipe work!
and yes it is intercooler??
OH arse what the hell is it?????

jonny57 · Nov 6th, 2008, 17:43

If you do alot of short journeys you can get condensation building up in the crankcase and you may get mayonaise on the dipstick and filler cap-take it for a good welly

Madhouse · Nov 6th, 2008, 22:01

Quote:

Originally Posted by jonny57

If you do alot of short journeys you can get condensation building up in the crankcase and you may get mayonaise on the dipstick and filler cap-take it for a good welly

Its not a mayo issue, this sounds like actual oil within the header tank floating as a film.

simonV40 · Nov 6th, 2008, 22:18

NO! no mayo, do 35mile round trip to work
Its odd when flushed rad water was clean??
No probs with oil....changed today...gonna keep an eye on it for the next couple of days and see!

Madhouse · Nov 7th, 2008, 09:23

Are 100% sure it's oil?

Could it be just manky coolant thats got rust taint, hence the brown film?

It maybe just needed a good flushing out if it ain't been done for a while, there could well be rust in the system (rad etc)

Hopefully you've sorted it now.

Thinking about it if oil was present in the water in enough volume it would emulsify anyway and give you the creamy slop, equally you'd expect to see traces on the dip stick and breathers too.

manoman48 · Nov 7th, 2008, 10:04

And remember it only takes a tiiiiny amount of oil to create a film.

Madhouse · Nov 7th, 2008, 11:18

Quote:

Originally Posted by manoman48

And remember it only takes a tiiiiny amount of oil to create a film.

Are we off topic here?...Home movies?....I'll get me coat.....>>

Nov 6th, 2008, 13:47	#1
simonV40 Member Last Online: Dec 23rd, 2010 05:17 Join Date: Aug 2008 Location: Newquay.,Cornwall	Oil in Water Right problem!! Just serviced my 1998 V40 1.9TDI today....,new air filter,oil filter and new oil etc., Checked water reservoir....OIL thin film of oil in water!!!! immediate thoughts **** head gasket...but no loss of power, no over heating no anything runs fine..so flushed out water system no oil in radiator or on water in bucket??? washed out reservoir refilled all good just got home thin film of black oil in reservoir...NO WATER IN OIL.., no visible leaks from head gasket?? thought maybe some one filled wrong bit with oil? Anybody got any ideas or had similar problem???

Nov 6th, 2008, 16:21	#3
Madhouse Member Last Online: May 5th, 2011 21:30 Join Date: Feb 2008 Location: East Sussex	Doesn't sound too good huh? Is it using any water at all? I'm no expert but oil in the header tank usually points to headgasket issues. I'd nip to a local garage and ask them to bung a gas analyser in the header tank to check for combustion fumes - this will (help) identify any gasket issues. Breather pipes? Intercooler? Tricky one. Sorry. __________________ 2001 Panama Yellow T4 - 1 of 324 in the UK Oh and a BMW 525 Tds Touring.

Nov 7th, 2008, 09:23	#8
Madhouse Member Last Online: May 5th, 2011 21:30 Join Date: Feb 2008 Location: East Sussex	Are 100% sure it's oil? Could it be just manky coolant thats got rust taint, hence the brown film? It maybe just needed a good flushing out if it ain't been done for a while, there could well be rust in the system (rad etc) Hopefully you've sorted it now. Thinking about it if oil was present in the water in enough volume it would emulsify anyway and give you the creamy slop, equally you'd expect to see traces on the dip stick and breathers too. __________________ 2001 Panama Yellow T4 - 1 of 324 in the UK Oh and a BMW 525 Tds Touring.

Nov 6th, 2008, 15:34	#2
simonV40 Member Last Online: Dec 23rd, 2010 05:17 Join Date: Aug 2008 Location: Newquay.,Cornwall	Anyone????

Nov 6th, 2008, 16:56	#4
simonV40 Member Last Online: Dec 23rd, 2010 05:17 Join Date: Aug 2008 Location: Newquay.,Cornwall	cleaned out all pipe work! and yes it is intercooler?? OH arse what the hell is it?????

Nov 6th, 2008, 17:43	#5
jonny57 Member Last Online: Dec 10th, 2011 13:25 Join Date: Oct 2007 Location: Dundee	If you do alot of short journeys you can get condensation building up in the crankcase and you may get mayonaise on the dipstick and filler cap-take it for a good welly

Nov 6th, 2008, 22:18	#7
simonV40 Member Last Online: Dec 23rd, 2010 05:17 Join Date: Aug 2008 Location: Newquay.,Cornwall	NO! no mayo, do 35mile round trip to work Its odd when flushed rad water was clean?? No probs with oil....changed today...gonna keep an eye on it for the next couple of days and see!

Nov 7th, 2008, 10:04	#9
manoman48 Master Member Last Online: Apr 28th, 2023 11:20 Join Date: Mar 2007 Location: Sc.unthorpe	And remember it only takes a tiiiiny amount of oil to create a film.

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