Question about 1998 Volkswagen Jetta

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Oil Leak around oil cap and Air Filter

I noticed a burnt oil smell from my 98 VW Jetta the other day, and found that oil had leaked around the oil cap. I also found oil in the air filter intake. When I opened the oil cap, there was a pale yellow liquid around the opening, and I found the same liquid in the Vent valve. I had just planned on changing out the valve, but now I'm wondering if there's something else wrong??

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I'm afraid to say you need an engine. the pale yellow liquid is oil mixed with antifreeze, which indicates the head gasket is gone and the antifreeze is in the oil. Also the oil in the air filter housing indicates you have bad rings. If you want to keep the car replace the engine.

Posted on Jun 01, 2009

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Blown head gasket. the coolant gotten into the oil.

Posted on Jun 01, 2009

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I have a oil leak on my 98 vs jetta and its like on the side of the engine about two inches from the oil cap. I was told it needs a "o" ring were do I get one and how much

Posted on Oct 10, 2011

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Posted on Jan 02, 2017

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SOURCE: Oil Leak

I would change the air filter, the valve and possibly the oil cap. Also, change your oil filter, it may be clogged. Keep an eye on it just to be sure there isn't anything more serious.

Posted on Jun 01, 2009

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Losing Coolant

You may very well have an internal leak as in a blown head gasket. If you see white smoke from the exhaust and it smells sweet that is a definate sign you do. You may also notice a white foam on the underside of the oil cap and the oil level may be over full. Remove the radiator cap, engine cold, and start the engine. If you see air bubbles escaping you have a blown head gasket or cracked head. Stop driving the car until you verify this with a compression test. Severe engine damage will occur if you continue to drive this car, if the head gasket is blown.

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VW jetta has a wierd smell that smell like melted crayons. What is this?

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I would change the air filter, the valve and possibly the oil cap. Also, change your oil filter, it may be clogged. Keep an eye on it just to be sure there isn't anything more serious.

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3 Answers

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Check carefully around the valve covers, this is the area that leaks most frequently occur, and being located next to the exhaust manifold can easily cause the burning smell. There is a very easy to replace gasket under the cover. Other possibilities, shop or you when changed or added oil spilled a bit and that has worked down to the exhaust manifold and is causing the burnt oil smell. Last possibility is that you do have a slow leak on the underside of the engine that is blowing back onto the exhaust system causing the smell.

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