I have a 2.0L 2001 Jetta, automatic. Near the throttle body, in the black plastic intake hose that comes from the air filter, there is oil. Not too much, easily wiped away with a paper towel. Say a teaspoon.
Do I need to be concerned?
Re: Oil in intake hose, near throttle body (francismartin)
Normal for some oil vapor to condense there, I just cleaned the intake on my kid's Y2K Jetta 2.0 a week or so...at 37K miles there was about the amount you mentioned. VW changed the intake system so that it won't run down onto the mass airflow sensor (MAF) like it does when it gets in there on the MKIII cars. Notice that the intake boot runs uphill to the MAF and aircleaner on MKIV cars while it runs down to the right on MKIII's. So as long as it remains just the trace amount you mention, should not be a prob. If it gets worse could be a clog in the PCV system is raisin crankcase pressure and forcing more oil into the breather...that would be something to correct. http://****************.com/smile/emthup.gif
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