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2001 Volkswagen Passat Question: hey autotechpat

 

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bill05, 1.8L 4 Cylinder, Seguin, TX, February 03, 2009, 16:51
 Rookie

there is no condensation on the oil filler cap. it looks to be a "TEE" coming off of the waterpump. it goes to the block right above where the oil filter screws on, it looks to be like some type of heat exchange or a oil coolant system and goes to the expansion bottle which intern goes to the radiator. could there be a gasket that is bad? or a small hole in one of the lines? could it be the head gasket, because i hope not....

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, February 03, 2009, 19:17
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     Master

    Good thought. VW have been using that for years, I had a 1987 GTI and an 1984 Scirrocco that had that oil cooler. They developed a problem in the 80's and 90's where the "O" ring between the cooler and engine block would crack and develop a huge oil leak. Good thought, clean out the bottle and keep an eye for oil. Could some one have put some form of stop leak or cooling system additive in the cooling system that could give the appearance of oil?

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  • Answer #2

    spyder February 04, 2009, 12:59
     Journeyman

    Your describing the oil cooler. A common failure within the oil cooler structure allows oil and coolant to mix. The oil cooler itself should be replaced and the cooling system drained and refilled after being thoroughly flushed before going any further.

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  • Answer #3

    spyder February 04, 2009, 12:59
     Journeyman

    Your describing the oil cooler. A common failure within the oil cooler structure allows oil and coolant to mix. The oil cooler itself should be replaced and the cooling system drained and refilled after being thoroughly flushed before going any further.

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