Starting problem after filling tank - Club Touareg Forums
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post #1 of 14 Old 07-02-2012 Thread Starter
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Starting problem after filling tank

After I fill my gas tank in small, medium or large amounts I have starting problems. It is necessary for me to hold the accelerator pedal to the floor and crank for 5-10 seconds before the vehicle starts. Once started, it runs rough at idle and hesitates upon first driving away. After a medium to strong acceleration even is ok.

Can anyone share their experience and how to resolve?
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post #2 of 14 Old 07-02-2012
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would be nice if you told people the model year and engine in your touareg. If its a diesel, change your fuel filters and get the water drained.

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2013 Touareg TDI Black Pearl / Titan Black
--PREVIOUS TOUAREGS:
'09 TDI, '07 V8 FSI, '04 V10 TDI, '04 VR6
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post #3 of 14 Old 07-02-2012 Thread Starter
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Apologies - it is a 2005 V8, now about 80,000. Except for the starting issue; no performance issues and runs strong
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post #4 of 14 Old 07-03-2012
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Do you have access to Vag-Com? Any codes?
I am having the same issue on my 2006 v8 @135k miles. The only code I am seeing is for the Secondary Air Injection, but it was present before the hard start issue started. I did see a "Large Vacuum Leak" code once, but it cleared itself.
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post #5 of 14 Old 07-03-2012
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Try to remove and replace gas tank cup without fueling. If you’ll see the same problem than it’s the cup not sealed properly.
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post #6 of 14 Old 07-03-2012
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ConservativeConsumer: Hoping for an easy fix I tried that and that wasn't the issue.
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post #7 of 14 Old 07-31-2012
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Found my issue - it was the N80 valve/ EVAP Canister Purge Solenoid Valve VW part number 1C0906517A. Replaced it, cleared codes and set readiness and life is all good again.

I was getting the infamous P0441 and thanks to the info in this thread VWVortex.com - Stubborn P0441 code I got a better understanding of the EVAP system and was able to fix the issue.
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post #8 of 14 Old 07-31-2012
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Thanks for sharing! Sorry to hear that the fix was not an easy one – it’s the Murphy's Law at works…
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post #9 of 14 Old 10-31-2018
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hello touareg lovers
an old thread but its still helpful for me have exactly the same problem, last 3 times i have refueled the engine cranks for about 5-10 seconds and then starts, i have tried to prime the fuel system by switching the ignition on and off 2 times but it did not help. so i guess it same part needs changing, no fault codes so far.
so my question is where is this part 1C0906517A located cause i can not find the diagram or any documentations about it thank you in advance
kind regards, Nikoloz
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post #10 of 14 Old 10-31-2018
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Originally Posted by nikoloz View Post
so my question is where is this part 1C0906517A located cause i can not find the diagram or any documentations about it thank you in advance
kind regards, Nikoloz
It's over there.
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Gute Fahrt!
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