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VW Jetta TDI

3719 messages,  Last post on Dec 04, 2009 at 9:09 PM

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What is this discussion about? Volkswagen Jetta, Biodiesel, Diesel, Sedan


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#2722 of 3719
Re: TDI plugged intake issues [longo2] by siberia
Mar 14, 2009 (6:51 am)
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Replying to: longo2 (Mar 13, 2009 8:25 am)

No, engine oil is not part of the answer - unless the oil is so bad the engine never breaks in. Properly maintained TDIs use a tiny amount of oil. An engine would have to use a huge amount of oil to plug up an intake manifold. The carbon build up comes from the fuel by way of the EGR valve and some small amount of blow-by fed back into the intake ahead of the turbo. And, the blow-by is mostly unburned fuel containing soot, not engine oil.
 
To the extent that there is a design defect in TDIs, that defect is that the engines have EGR valves. The 2009 TDI has the advantage of burning ULSD fuel from the start.
#2723 of 3719
Re: TDI plugged intake issues [sebring95] by siberia
Mar 14, 2009 (8:11 am)
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Replying to: sebring95 (Mar 13, 2009 6:13 pm)

I drove mine pretty hard, usually at least one WOT per day, and never had an intake problem. Mine was over 150k miles when it got totaled and it was still quite clean. Had about 1/8" of "soot" inside.
 
My '05 TDI looks like it might have around 1/8 inch of soot by the time it hits 150k miles. The previous owner must have abused it just about right.
#2724 of 3719
Re: TDI plugged intake issues [siberia] by longo2
Mar 14, 2009 (10:00 am)
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Replying to: siberia (Mar 14, 2009 8:11 am)

I have heard that using ULSD in earlier Jettas will be good for them, but using regular diesel would be an instant disaster for the exhaust systems in the new ones.
 
There's lots of chatter on the internet about how great 'clean diesels' are now, so hopefully the ULSD will become avaliable at more stations.
 
  Honda has a new 4 cyl, clean diesel on the way in the Accord later this year..so that might finally break the ice and get the oil companies into the 21 century.
 
Postings like this road test of a nice 06' have got to be helping wake up the public....(the car has ben sold)
 
http://www.youtube.com/watch?v=h5aDihD1AqI&feature=related
#2725 of 3719
Too Good to be True by longo2
Mar 16, 2009 (4:43 pm)
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Well, I found a 'shadow blue with grey leather' pckage 2 Jetta in the Utah Auto trader for $14885. It had about 70,000 miles and looked to be in minty condition.
 When I was able to contact the dealer about it today, they told me it had a "blown turbo" and was going to the dealership wholesale auction...tomorrow.
 
Then they said what would you offer us for it?
  
Keep in mind I live 1000 miles away and have no idea of what the repairs could come to, and if they did they weren't saying.
 Sorry to say I choked and told them I could not imagine what a dollar figure for the Jetta might be under these circumstances and said, take it out back and put it out of it's misery.
 
Other than that it was just what I am looking for..........
#2726 of 3719
Re: Too Good to be True [longo2] by shrifty
Mar 16, 2009 (5:28 pm)
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Replying to: longo2 (Mar 16, 2009 4:43 pm)

From what little I know, I'd say about a grand for the turbo or so. Also, to the rest of the board, how would one blow a turbo? Would it be from abusing the car? Or just happen to be a faulty part?
#2727 of 3719
Re: Too Good to be True [shrifty] by sebring95
Mar 16, 2009 (6:21 pm)
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Replying to: shrifty (Mar 16, 2009 5:28 pm)

It's usually just a sensor that's bad and the dealers mis-diagnose it as being the turbo.
#2728 of 3719
Re: Too Good to be True [sebring95] by shrifty
Mar 16, 2009 (6:33 pm)
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Replying to: sebring95 (Mar 16, 2009 6:21 pm)

If that's the case, then this car could end up being a fairly decent deal.
#2729 of 3719
Re: Too Good to be True [shrifty] by gagrice
Mar 16, 2009 (6:55 pm)
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Replying to: shrifty (Mar 16, 2009 6:33 pm)

I would think someone buying at auction would bid figuring a new engine and transmission. No way to know on either one. Could be other problems also. I don't see it bringing much at auction. Though someone could make a lot of cash if it is something simple.
#2731 of 3719
subtract 10 mph, add 10 mpg by elias
Mar 19, 2009 (12:50 pm)
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on highways i've been driving in the right lane real slow due to no more hurry - driving the actual speed limit or within 5 mph.
mpg is up from 45 mpg to 55 mpg, but the tailgators in the right lane may be worse than those in the left!

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