Author Topic: 2006 tdi smoke on startup  (Read 7635 times)

August 18, 2011, 09:10:00 am

Ozca

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2006 tdi smoke on startup
« on: August 18, 2011, 09:10:00 am »
Yesterday I was looking at a 2006 Jetta TDI at a VW dealers lot, we started it up and there was quite a lot of bluish smoke from the tailpipe.
Even the salesman was surprised. This Jetta only had 104000kms on it. My 03 Jetta TDI has 245000kms and it also smokes on cold startup,
same amount of bluish smoke. 
Others on this forum have said they have similar experiences and it could be bad glow plugs.
Need a VW tech's advise on this issue before I go any further.
2006 Jetta TDI DSG auto
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1999 Thomas c/w Kubota Diesel 40 hp.

Reply #1August 18, 2011, 10:53:39 am

nathan_b

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Re: 2006 tdi smoke on startup
« Reply #1 on: August 18, 2011, 10:53:39 am »
Sounds like they are both run hard, valve stems/piston rings worn, if it is severe, then possible turbo - oil consumption issue. If a PD is doing that, I would steer clear, they are $$$ to fix right.
81 caddy frankentd 02a, 99.9 tdi jetta, 00 golf

Reply #2August 18, 2011, 10:59:44 am

CRSMP5

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Re: 2006 tdi smoke on startup
« Reply #2 on: August 18, 2011, 10:59:44 am »
color of smoke??? white to grey tends to be unburnt fuel like bad glowplug.. but also smells like unburnt diesel too...

Reply #3August 18, 2011, 11:44:10 am

R.O.R-2.0

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Re: 2006 tdi smoke on startup
« Reply #3 on: August 18, 2011, 11:44:10 am »
blue is usually oil smoke, not diesel, and usually smells of burning engine oil.

like was already stated tho,

valve seals and guides could be at fault.

so could the turbo seals..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #4August 22, 2011, 08:23:20 am

Ozca

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Re: 2006 tdi smoke on startup
« Reply #4 on: August 22, 2011, 08:23:20 am »
Appreciate the input, I will stay away from that one and keep looking.
Thanks.
2006 Jetta TDI DSG auto
=============
1999 Thomas c/w Kubota Diesel 40 hp.