Question about 2004 Volkswagen Touareg

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OIL AND WATER MIXING IN MY 07 TOUAREG

WATER IS GOING IN THE OIL, OIL COOLER IS GOOD AND, CYLINDER HEAD GASKET WAS CHANGED, LOST WHAT TO DO????

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  • 537 Answers

You seem to have a hailpin crack in the cylinder head. Pressure test it.

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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Selvol
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SOURCE: oil in water resovour vw 2002 passat

Could be just the OIL COOLER. VW IS CORRECT.
If the oil cooloer fails internely you will have a mix of coolant and oil. In the engine and in the Radiator,

But not to say the other guys were wrong...

Posted on Jun 18, 2009

  • 23 Answers

SOURCE: overheating

You could have several issues here. A blockage in the radiator, bad coolant temp sensor, (not turning the cooling fan on) a bad cooling fan motor. sounds as if maybe one of these may be your primary issue, and the cause of the overheating that originally caused your head gasket problem. Hope this helps

Posted on Aug 22, 2009

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SOURCE: Combo diesel engine blows blue smoke from only one

Blue smoke means that the cylinder is burning oil with gas/diesel. White smoke means that the engine is cold and excess fuel is being burnt. It means that the cylinder is having worn out rings.They need a change. Also check the engine oil level as well. It may be going low gradually.

Posted on Jan 01, 2010

Testimonial: "hello shiela65 You are right the oil is going down gradually. What is the number of hours required to change the rings, Thank you."

  • 271 Answers

SOURCE: oil in water, mk4 golf gt tdi 115

The most cheapest way is as follow: Disconect the hoses from the oil cooler and connect them together.Clean coolant system from the oil and drive about 20 miles.Check again coolant system.If there is oil-change cylinder head gasket.If not-change oil cooler.If you are in London go to see Hall service centre N17 Ferry lane next to Hall subway station-Tottenham.Tell Duane -Sabo send me here.

Posted on May 06, 2010

alicantecoli
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SOURCE: Oil in expansion (coolant) reservoir Golf 1.4 98

replace the oil cooler first before you change the head gasket ,but normally a 10 year old vehicle often has gasket fatigue ,not made like a good old fashioned copper head gasket ,they rarely went wrong

Posted on May 11, 2010

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The only place, oil and water share a gasket is the cylinder head gasket, oil and water galleries run through the engine block and head via the head gasket. The cylinder pressure will be OK, it's the oil pressure that's putting the oil in the coolant, the gasket has gone between the water and oil galleries or there is an internal crack (unlikely). A coolant pressure test should show it up.

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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.
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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.

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I had the same problem with my T5 130. My mechanic replaced the head gasket to no avail,then we checked the oil filter,that was ok.then we went on to a web forum and found out that the AXD engine suffers from water pump failure.We took it off and it was corroded,the seal had failed and was pumping water into the block.My advice,CHECK WATER PUMP FIRST! Good luck Marc,Somerset.

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