Question about 2001 Audi S8

1 Answer

2000 audi s8 4.2 oil in water . no water in sump and runs on all cylinders smooth . could it be the oil cooler.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 771 Answers

Oil in water could be a leak at the cylinder head gasket. Oil pressure is much higher than coolant pressure so oil will more readily push into water passageways than vice versa. The other alternative you have hit on is that it could be a leak from the transmission oil cooler pipes. Check that the pipes enter the bottom of the radiator> It may be that the oil is cooled by an entirely independent cooler rad in which case there is no opportunity for transmission oil to ever come in contact with the coolant. The check the first possibility, from cold start the car with the coolant filler cap removed. Is the coolant agitated, ignition gases are just as likely as oil to blow past the gasket. Next have the coolant system pressure tested at a garage. They will be able to monitor coolant pressure throughout the duty cycle of the engine: no pressure at cold rising to about 7lbs per sqinch when hot. If the coolant pressure spikes to 15lb or more when cold this is sign of oil or combustion gas pressure ingress. If this detected, at best a new gasket is required and maybe a new cylinder head (if cracked).

Posted on Oct 07, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Water detected in sump would it come from the oil cooler


Would need more information on the year, manufacturer, model and engine size. That said, most engine oil coolers do not use engine coolant as a cooling medium. They are mounted in front of the radiator and use air cooling. If that is the case, water in the sump would most likely be due to a blown head gasket, cracked head, or cracked engine block.
Oil coolers for automatic transmissions are often installed internal to the vehicle radiator, and if one of these breaks, then coolant will infiltrate the transmission sump and transmission oil will infiltrate the cooling system.

Oct 22, 2015 | Cars & Trucks

1 Answer

Oil in the cooling system


oil in the cooling system comes from a transmission oil cooler in the radiator leaking. I take it that you have an automatic transmission Normally if you have a gasket problem the water would be in the sump oil. You will need to replace the radiator to effectively fix the problem and as a side suggestion consider an air cooled transmission oil cooler for the transmission oil as it helps the car to run cooler and keeps the transmission oil cooler and extends the life of the transmission.

Sep 11, 2013 | Cars & Trucks

1 Answer

Oil mixing in resevoiur


the most common fault for this is the oil cooler, where the oil filter screws on ,these fail inside and allow oil and water to mix, usually in the coolant system, not a big job or cost to fix, unusual for head gaket to blow on these engines.I worked with Audi for 15 years and cannot remember any A4's that had a head gasket issue.

Jun 20, 2012 | 2000 Audi A4

2 Answers

2004 vw touareg 2.5 tdi the oil sump was full of water and oil mix,also inlet manifold had oil and water mix.number 5 cylinder had locked up and engine would not turn,so i removed glow plugs and cranked...


Can not be water pump, because that has a vent hole to the outside, and does not at all allow access to crankcase or cylinders. Oil cooler is also unlikely because oil is under more pressure than the water, and it would not get into the cylinder.
Water in the cylinder means up high.
That means head gasket or cracked head.
You can tell with a leak down test.
You borrow the gauge from a place like Autozone, and replace the water reservoir cap with it. Over pump it, about 30 psi. And watch for leaks. If same cylinder keeps filling, then you know where the bad gasket or head crack is. Diesels often crack heads. Not hard to do, but new head is not cheap. Probably $500 for part, $400 labor.

Feb 22, 2011 | 2005 Volkswagen Touareg

1 Answer

Hi i have a audi 80 1.6 petrol 1994, oil and water mixing is it frost plug or head gasket.


Is it overheating? Is the oil in the top of the radiator? It is not a freeze plug, it would be leaking water/ coolant. Check to see if steam comes out the exhaust after it has been running a minute. To be sure, take it to a radiator shop, they will do a compression check and tell you which cylinder it is, it is most likely a head gasket, but if you don't have any of those symptoms, it might be the transmission cooler in the radiator leaking,(rare). If you have water in the oil, then we got something more serious. Check it out.

Jun 22, 2010 | 1997 Audi A4

2 Answers

Audi a4 oil in the radiator system


sorry dont run it. The cooling system is a sealed unit with no way for oil to get it. Problem the system is allowing oil from acrack in the block- head or metal area to the cooling system. Maybe a gasket that is alowing the transfer in the head area.

Jun 07, 2010 | 1998 Audi A4

1 Answer

Milky oil in water but car runs fine


This is classic case failed head gasket. You changed your oil 4 years ago?

There is more to this story I think. Maybe you changed the transmission oil 4 years ago and and now you have water in the trans? Not good. You have trans oil in the radiator? Not good. You have engine oil in the radiator? Not good. You have water in the engine? Not good. You have engine and trans oil in the radiator? Doubble not good.

You should have a reputable shop take a look at your 22 year old car to see if it is salvagable.

Mar 09, 2010 | 1998 Audi A4

1 Answer

Oil in the water audi a3 tdi


The most probable cylinder head gasket is damaged !!!
But first check the oil / water cooler placed at the bottom side of oil filter. It could also be cracked. Maybe due an engine overheated.

Feb 14, 2010 | Audi A3 Cars & Trucks

6 Answers

Audi a4 mixing water and oil together hissing,grey/brown foam


That is not true oil and water being mixed can come from many different places. Such as a bad radiator which would cause transmission oil to mix with the water also alot of audi's have a water cooled oil cooler which are a very common cause of oil being mixed with with water. These type of oil coolers are located under you oil filter. They have water lines hooked to them which cools the oil and when they go bad the water and oil will mix. So dont be convinced that its your head gaskets it could be but not as likely. You can pressure test your oil cooler to see if this is the problem just romove it an plug one off the inlet or with rubber plug which can be purchased at you local hardware store (I found mine at ace hardware in there specialty drawers where they have all there bolts) then attach a air hose to the other outlet pressureize the system and place it in a bucket of water. this should tell you if the oil cooler is bad but be careful not to ove3r pressureize the cooler this could damage it and caust it to leak. 15 to 30 psi should be plenty.

Mar 30, 2009 | 1999 Audi A4

Not finding what you are looking for?
Cars & Trucks Logo

334 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audi Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

yadayada
yadayada

Level 3 Expert

76848 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

14384 Answers

Are you an Audi Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...