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Discussion Starter #1
2016 3.6L V6 w/ 34k mi. The bottom of my air filter is wet/disintegrating w/ oil. Bought car used certified at 15k mi. Dealership changed oil (and supposedly air filter) at 24k. Now my check engine light is on steady and I get a low coolant level warning. Coolant level does not appear to be low. Notice no change in car performance. I've read that a bad PVC can cause "blowback". Would a bad pvc produce any other symptoms?


I'm concerned that the issue is more serious as I have had ridiculously bad luck w/ cars. The last time I owned a VW the dealership didn't change my oil (although I paid for it). When it was time for the next oil change the car ran like crap, the dip stick was dry and every check engine light would come on. This on a car w/ 60k mi. The dealership changed every sensor imaginable (and charged me for it) but the car never had horsepower after that.


I'm taking the car to the dealership now but would like some opinions before they give me their diagnosis.
Thanks in advance.
 

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First, you need to know exactly what you want looked at and/or what you believe is wrong.

Second, you need to explain, specifically, to the service writer what you want looked at, or what you want changed, and that you want an estimate on any parts/repairs/labor on the the items that need fixed/replaced.

Third, you need to tell them that you do not know anything done (replaced/fixed), until you are contacted with the COMPLETE rundown of what is wrong.

Yes, you will have to pay for a diagnostic fee, mechanics labor/time isn't free.

Once you get a list of the "bad news", you then have to make a decision, have the work completed there, at the dealer, or find a comparable idie shop that specializes in VW/Audi/German cars. The indie shop might have reduced labor prices, but from the sounds of it, you don't have the best luck with dealers.

The other option, is order the parts yourself, from a place that specializes in VW/Audi parts, e.g. ECS Tuning, and do the remove/replace yourself.

Good luck.
 

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JCM414
Eek ! This sounds like the beginning of a horror story.
There have been issues with water in the filter housing and ingested by the engine!
I would get it to the dealer sharpish. Is there is a problem and you only have 34km’s on it , they can buy it back!
There are a lot of threads on this forum and other Touareg forums talking about water in the intake filter.
Are you sure that it is soaked in oil and not water?
 

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Also... JCM414,

Please fill in details at the left side. It is a huge help to fellow forum members if they know some details about which engine you have, where in the world you are (different areas have different coding)
 

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As above there is a known issue about rainwater getting into the air filter so go back to the dealer, talk to them about it and stay polite but don't take any bullshite.

If your engine really isn't using coolant then you may have a duff level sensor.

Click on User CP to update your profile with your model, year and location.
 

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Discussion Starter #6
Thanks for the replies. The dealership confirmed that the intake filter was wet w/ H2O, not oil as I was originally told. The low coolant level warning was the result of a bad thermostat. You'd think a thermostat would last longer that 34k mi but my last VW also had a bad thermostat (at 60k mi). This was 20 yrs ago.


I'm going to read the threads re wet intake filters and will likely be taking the vehicle back to the shop. Thanks all for your help.
 
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