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post #1 of 5 Old 02-03-2018 Thread Starter
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Random Puff

Fellow Treggers,

I have owned a '14 Lux for about 6 months now. Love it.

Something happened yesterday I have never seen before. I was running some errands yesterday - and after a bit of driving (up to temp) and one stop (shut off) - I lightly accelerated after making a right hand turn when I noticed a large puff of what appeared to be steam (maybe white smoke - but it acted like steam). It was enough to completely fill my view out the rear window. The truck never missed a beat - before, during, or after. No warning lights either. I have seen no oil consumption - the tail pipes are clean...weird. It was cold 30F and it has 48K miles if that makes a difference.

Any suggestions? is this a regen thing? after some quick googling I have seen references to it being water trapped in the muffler (on other VW's - nothing specific to the Treg) - could that much condensation build up in the exhaust that it would "blow" out like that in one big puff? I called my service person at the dealer - they had never heard this described before - but one of the techs best guess it was the result of a regen session.

Any of you had this experience? Your feedback is appreciated.
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post #2 of 5 Old 02-03-2018
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Regen is known for blowing out some clouds. But I think that regen always gives you a yellow light... anyway, it shouldn't happen at 48k. Unless the car was seriously under-revved for a long time.
Anyway - white smoke:no worries. You should only be concerned when it starts blowing black smoke.
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post #3 of 5 Old 02-03-2018
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Some people doing repeated short journeys have had the suitcase exhaust fill with condensate to the extent it freezes, blocks the exhaust and prevents the car from starting.

The fix is to drill a weep hole in the lowest part to let the water out.

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post #4 of 5 Old 02-04-2018
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This has happened to my 2014 TDI since the day it was new, but itís only noticeable when itís cold.

It is steam, nothing more. To be honest, Iíve wondered if itís ad blue. Doesnít matter if you do short trips, long trips, etc. Iíve seen it appear at the end of an 850 mile drive when I hit the accelerator a bit harder than normal and the temperature was well below freezing (near 0 F).

Like you describeó completely obscures your rear window for a second or two.
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post #5 of 5 Old 02-04-2018 Thread Starter
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Touareg: 2014 V6 TDI
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thanks!

Thanks guys! I really appreciate the feedback.

I haven't done a lot of long trips yet and I could be accused of driving like a grandpa (I love seeing how many MPGS I can squeeze). Perhaps I need to give it some stick every once in a while to keep the pipes clean...kinda like the ole Italian tuneup!

If my putting around is not good for it - let me know and what I can do to compensate for it.

Thanks again...
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