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Hi, I have a 2008 VW new beetle 2.5L. Recently i have a check engine light on with no reason, the car is driving normally, no noticeable extra fuel consumption. I noticed that the light goes off when i fill the tank and after driving for two or three days, when the fuel tank is around two thirds, it starts to pop up again. anybody can help, any suggestions !
 

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Off hand; I would think, possibly a EVAP issue but..... Please, get the car scanned for trouble codes; this can be done for free, at any auto parts store. If you don't have a scanner; I recommend you pick up a Volkswagen compatible code scanner/reader (like the vgate vs450 from amazon.com, $50) or go full factory level scan tool VCDS from Ross Tech ($250-$350).

Post up any and all trouble codes; we will do our best to help you out! :)
 

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Hi, sorry for being late. Once i leave in Oman, the Vgate DBDII took a long time to arrive. i have attached image of the code i found 00369.
 

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Looks like a 16555/P0171/000369 - Fuel Trim; Bank 1: System Too Lean: leaks or Maf failure? If you can get access to a scanner; that does LIVE data, you could read the fuel trims and figure out where to go from there. Meanwhile, you have your troubleshooting process, out lines for you in the link, below.

16555/P0171/000369 - Ross-Tech Wiki

Fuel Trim Info - Ross-Tech Wiki

For testing the MAF: here are some diy links:

https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=Jetta maf testing

Another possibility; is the 2.5L has a specific issue with the PCV valve leaking/failing in the valve cover; read about this issue here (Dorman sells a cheap repair kit):

http://newbeetle.org/forums/2-5-liter-gas/65633-re-2-5l-pcv-valve-failure-solutions-dorman.html
 

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Re: Engine Light

Billymade---how did u come to conclusion on the scans from z man?...It said the front right shock absorber is soft?...R there really sensors in my shocks or am I misreading something..How do u read those codes he sent?...thnx ur a great help here....
 

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The generic code readers are terrible at interpreting codes for VWs for some reason. There are no sensors on the shocks. Its a junk description. You just need the 5 digit number at the beginning of the scan (00369) and then plug it in online. The Ross-Tech wiki is the best resource for VW code interpreting.
 

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Discussion Starter #11
Thanks billymade a lot, although we are in a emote area that its hard to find a qualified VW specialist, but what you sent will help a lot.
 
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