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Sedans Volkswagen Jetta VW Jetta TDI
3713 messages, Last post on Dec 04, 2009 at 3:49 AM
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Replying to: andyvmn (Mar 10, 2009 8:29 am) |
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Replying to: andyvmn (Mar 10, 2009 8:29 am) --The increased Cetaine quiets down the engine and gives you 2-4 more MPG. --The lubricant protects your very expensive injection-pump I always ALWAYS add about 6 oz of PowerService at every fillup (WHITE bottle in winter / GREY bottle in summer) All WallyMarts carry PowerService. I have been driving in Vermont winters for 6 years with absolutely no jelling at all. You will have more issues with getting heat from the engin than from jellin. Even if you chose to never add fuel-conditioner, your local fuel supplier adds kerosene to the diesel as the temps get colder. Also, the TDI is designed to heat the fuel as you drive so the fuel-filter is kept warm. Any paraffan in the fuel will melt and pass thru the filter. If you are the nervous-type of person, just keep a spare fuel-filter in the trunk. Any jelling problems will be resolved by replacing filter. You can also carry a bottle of DIESEL-911 in the trunk... guaranteed to instantly resolve any jellin. Dont forget that jelling ONLY is a problem if enough paraffan particals build up on the fuel-filter to stop the flow of fuel... this is very VERY unlikely to happen. Contray to what some folks may think... jelling DOES NOT affect starting the engine at all. Instead, a jelling problem will manifest itstelf by causing engine to stall out after driving for several miles. |
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Replying to: andyvmn (Mar 10, 2009 8:29 am)
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I am wondering if the new 09' Jetta TDI's will have the same problem with carbon/gunk build up in the intake manifold and EGR system? The 1.9 ltr TDI's could carbon up enough to eventually stop the engine, and the clean up process is expensive, dirty and doesn't really solve the problem. I have heard that the new 2 ltr TDI engine is a complete re-design, so am curious if anyone has heard that the clogging up problems of the older engines has been resolved.
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Replying to: longo2 (Mar 12, 2009 2:44 pm) There is/was of course a wide range of variance. On a 03 TDI, run the majority of its(114,000 ) miles life on LSD had ZERO intake carbon/gunk buildup. I suspect I will need little to no cleaning at 200,000 miles or  the second 100,000 miles, when the TB/WP changing is due.
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Replying to: siberia (Mar 10, 2009 6:51 pm)
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Replying to: littlerhody (Mar 12, 2009 6:08 pm) |
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Replying to: longo2 (Mar 12, 2009 2:44 pm) The 1.9 ltr TDI's could carbon up enough to eventually stop the engine, and the clean up process is expensive, dirty and doesn't really solve the problem. I have heard that the new 2 ltr TDI engine is a complete re-design, so am curious if anyone has heard that the clogging up problems of the older engines has been resolved. All common rails are not created equal. Many Liberty CRDs experienced EGR valve failure early (22k miles on mine) due to LSD fuel. Failures dropped dramatically after ULSD fuel was widely available (40k miles on 2nd EGR valve and still going). Punch a CRD and lots of black smoke goes out the exhaust. The Dodge Sprinter with the Mercedes engine is a very clean diesel engine. I see them a lot where I work. They are driven hard and I have never seen even a wisp of smoke go out the exhaust on one. I just inspected the intake on my 2005 PD Jetta TDI last week and there is very little carbon build up at 87k miles. If it happens to need cleaning it’s not technically difficult and I can live with it. |
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| For those who are interested, I live in NH and was watching TV and noticed a commercial for some TDi 09 Jettas still in stock at Lakes Region VW. I mention this because when I first purchased mine I was told I could expect to wait for about 6 months or more (this was in June of 08) for a car as they were high in demand. I ended up purchasing the dealership test model when VW made them available for sale to the public. I got the $28k plus version of the Jetta with Sirius and all of the other bells and whistles for the same price as the base model TDi. So far, I love my new Jetta. Its great on gas, and has saved me tremendously in costs as I traded in my old Subaru for the new Jetta. WAY better fuel efficiency! I have near 13,000 miles on my Jetta, and have had no problems. I love it. | |
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Replying to: siberia (Mar 13, 2009 3:50 am) It' been suggested that a lot of urban driving contributes to the build up, but longer drives where the system gets hot, will help keep the crap moving through the engine, like it's designed. Any thoughts? The local VW shop recommends that the TDI intake manifold and head should be completly removed, soaked in a strong solvent and blown out, not any kind of chemical flush used on the engine. At over a hundred dollars and hour for shop rate now, that would be a nasty bill. I am seriously considering a new 09 Jetta TDI. So call me a Nervous Nellie if you must, but no solid information on the re-designed engine does bother me.
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