Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

VW Jetta TDI



  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,422
    Lucky you--I got water out of my diesel water trap all the time. You know what they say, anecdotal evidence is the worst kind. So I'd say this TDI owner should disregard both of our experiences and check the water trap.


  • ruking1ruking1 Posts: 14,710
    I think anymore this is old advice but the normal advice for a long time was to get your fuel at an active diesel station/pump.

    So in effect my anecdotal experiences has been app 425 fills, literally all over the country, but in 15 states and 1 foreign country.
  • eliaselias Posts: 1,900
    longo2, the symptom you describe is not necessarily consistent with bad fuel. my 06 jetta did the same thing once at 120k miles. It did not feel like a fuel issue whatsoever to my "SOTP" meter. But could have been fuel issue. Either way, I traded it almost immediately...
    ... Have you inspected the camshaft - are any lobes disintegrating at all? :| PCV/intake clogged?
  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,422
    Still, you and I are, and will always be, a database of one. :P


  • ruking1ruking1 Posts: 14,710
    edited May 2012
    I speak neither ex cathedra nor have I ever claimed to represent other than myself !! Now swag/swagging... that is a way different story.

    Also I know for a fact there are huge numbers and percentages of folks that can easily snatch defeat from the jaws of victory. They are also some of those folks that are DAMN fine at what they chose to do.
  • longo2longo2 Posts: 347
    Hmmm, I thought I posted my problem on the VW Jetta mistake, seems it was the Twilight Zone!
  • edmund2460edmund2460 Posts: 293
    edited May 2012
    My 82 Jetta Diesel with 278K still runs giving 48mpg. It's not much of a car in appearance or creature comforts but the engine hasn't been worked on, doesn't smoke, although it uses a little oil and still runs pretty close to what it used to do. I don't drive it much nowadays my main car being a Mazda Pro which has been 100% fault free over 102 K. Anyway, I'm thinking of going back to VW, get a little better mileage. But I hear that Mazda is coming out with a low compression diesel at the end of this year to add to their new SkyActiv line of re-engineered cars. Comments anyone on whether VW by virtue of it's long time involvement in making and selling diesels has a definite edge over new entrants. Also what about this low compression design (Mazda has the highest compression gas engine but the lowest compression Diesel).

    My 82 of course has maintenance required (valves, timing) and the mechanics with the tools needed have all long since left the scene, which is another reason I'm thinking of selling it if I can and trading my 2011 Mazda Pro for a higher mileage vehicle, but what are the chances I would get a TDI to run fault free over 100K?
    Thanks for any comments
  • ruking1ruking1 Posts: 14,710
    edited May 2012
    UPSHOT: The first reaction is stay with what you have. You do not say what mpg you get with the Mazda Pro and your mpg expectations with the newer diesels. Without those figures/parameters, it is hard to say if the switch will make any sense, or if you will be happy.It is COMPLETELY unknown how the sky active diesel has done for real world consumers on the US markets.

    I think I would only be saying the obvious, but the difference between 30+ MY diesels and the MY 2012/2013 is in some ways SOS/DD, but literally night and day differences.

    Lower compression, albeit less than >/ 25 to 1 compression ratios are to remove the "marbles in a can" sounds. Having said that, the 2003 TDI has (as I recall ) 19/1 compression ratio and does not have those "MIAC" sounds. For a decade or more, modern diesels have been designed to run ULSD. Who knows what ppm sulfur diesel fuel the 1982 was designed to run?

    The 2003 Jetta TDI is going on 177,000 miles. It has had the normal TSB's. Unscheduled maintenance has been (non diesel related) change of batteries, windshield, two burnt out brake light bulbs, early drivers side low beam burn out and a just recent 176,000 miles passenger side low beam burn out. New tires @ 112,300 miles Schedule maintenance has been TB/WP change at oem recommended interval of 100,000 miles. It has been on a steady 20,000 to 30,000 miles OCI's, aka oil changed out 6 to 8 times. Air filter has been changed out 2 times. It still gets between 48-52 mpg. (aka 50 mpg). Brake pads and rotors and suspension are oem. The 1.9T and it slightly larger 2.0 TDI's are pretty well tested. The 2.0 TDI with AdBlue right now is probably the best of the breed. EPA H of 43 mpg.
  • edmund2460edmund2460 Posts: 293
    ruking: thanks for the reply. My Mazda Pro gives me around 28 commuting to work (25 miles one way, about 8 miles of slow going when traffic is heavy). It is in excellent shape at 102K. The 82 Jetta is an occasional car but I wouldn't mind restoring it if I could only find mechanics to work on it . The problems with this car have always been hardware and electrical. Right now the brake lights don't work, it's not the bulbs or the fuse. There's a false oil pressure alarm that comes on intermittently. This has been going on for years. I wish VW had built it to last as long as the engine and transmission. But the car still rides well, it feels comfortable, better than my Pro, although of course it can't match it for handling. Slow as molasses though, I don't mind, if VW would make a simpler diesel without the turbo, just concentrating on the mpg, reliability and longevity I would go for it.
  • squatlowsquatlow Posts: 1
    I have the same problem did you ever find the cause or source.
  • cosmocosmo Posts: 203
    Diesel has been less expensive than regular gasoline for a month now. I hope this means that the rest of my world will also return to normal.
  • carteachcarteach Posts: 179
    I've tried searching this forum for answers to my specific situation, but can't find it. So...I'm hoping for some advice. I commute round trip 120 miles a day back and forth to New York City. Much of the trip is stop and go traffic but not all of it. Is TDI a smart choice?
  • zambaqzambaq Posts: 14
    It might be a smart choice -- depends on your priorities. What are you looking for in a car, and what other vehicles are you considering?

    I live in the city, so I prefer to commute via public transportation, but I think my '09 Jetta TDI would make a great commuter car for someone who had to drive to work. The driver's seat is both comfortable and supportive, the interior is well-appointed and nicely finished, the car handles well with minimal road noise, and it's got lots of low-end torque (and of course, a turbo) for passing when needed. All of these attributes should make it a relatively pleasant means of dealing with a typically dreary commute. (Though from what I've read, my enthusiasm might be considerably curbed if I were stuck behind the wheel of a new, "Americanized" Jetta, unless I had to carry extra passengers in the back seat....)

    If your first priority is fuel-efficiency, however, and if a good portion of your commute is, as you suggest, truly "stop'n'go", a Prius would likely be a better choice, albeit only if you could adapt to its idiosyncrasies and its decidedly "un-carlike" driving experience. The TDI is an mpg champ on the open road, but it drops back into the pack in city driving. In my area of Queens, where there's a stop sign or traffic light at nearly every intersection, I average only 20 to 25 mpg. The real joy of TDI ownership for me comes during my escapes from NYC, when the car usually gets 40 to 45 mpg, whether on the interstate or on back roads, where it's also quite fun to drive. So even though it wasn't the ideally frugal choice for someone living (and driving) as I do at the moment, I'm glad (so far, at least) that I bought it.

    You just have to weigh all the factors relevant to you, and if a TDI (Jetta, Golf, Sportwagen or, soon, Beetle) is still on your short list, then by all means take one out for a good, long test drive!
  • rremer1rremer1 Posts: 7
    I, too, do a lot of stop and go driving, punctuated by longer stretches of highway. I have adopted a style of driving of for the stop and go driving that maximizes my diesel use during. (I guess it's called hyper-miling.) Anyway, since you drive the route every day, you know when you're coming to a light and stops signs (especially stop signs you know others will be waiting at ahead of you). And you coast there. No point in depressing the peddle when you know you have to stop. The TDI coasts beautifully (some regular cars don't; they just practically stop). This has made a huge difference in my mpg. When I do this conscientiously, I can run 500 or more miles on a tank. If I get lazy and drive more aggressively, I'm filling up at 460 miles. The only hybrid I'd be tempted to buy is a diesel/TDI, which, of course, would do even better! PS: I drive a 2010 Sportwagen.
  • eliaselias Posts: 1,900
    first consider replace thermostat and take careful measurements of coolant level when engine cold to see if there is measurable coolant loss and look for drips on floor under car after its run hot (put big white paper under there if you can to see exactly what it is leaking if anything). big coolant loss would probably indicate some kind head gasket leaking if not thermostat gasket . or water pump. has water pump been swapped as required at 100k? they can drip a bit when they are about to fail.)
    another possibility is heater-core. (maybe does the smell lessen a bit if you turn the HVAC system *off*? not sure if it would in that case)

    but also: there is a spherical coolant resevoir (white plastic i think). inspect it carefully, and all tubes, wires leading into/under it - unplug nearby wiring harnesses - and look for signs of corrosion inside the wiring plugs/harness/conduit. the reason is that resevoir or attachments it can crack and leak coolant *inside electrical wire bundle*, causing major damage.
  • carteachcarteach Posts: 179
    I definitely plan to get the Jetta wagon. Thie big question I need help with is....given my commute, will it pay to get the TDI or should I stick with the gas version?

  • cosmocosmo Posts: 203
    edited June 2012
    As zambag covered in a previous post, there is more to the driving experience than fuel economy. Consumer Reports found the owners of the 2.5 Jetta Sportwagen among the least satisfied and owners of the TDI Sportwagen among the most satisfied. We've owned 3 TDI's since 2004, and have found the fuel mileage to be an "Oh, by the way" advantage. The only significant disadvantage we have found in the TDI's is the slow warm up in extremely cold weather. Thus, VW equips all TDI's with heated seats and electric heaters.
  • gagricegagrice San DiegoPosts: 28,853
    The premium on the TDI is well worth it. The 2.5L gas engine is really not that great. And somewhat of a gas hog. What ever extra you pay will be returned when you trade or sell the car. I am surprised they even bother bringing in the gas version Sportswagen. They sell 85% as diesel. It is the one to get. Though you may not get a killer deal on one like you would the gas version.
  • fho2008fho2008 Posts: 393
    Anyone have the epa figures for the 2.5 vs the TDI?

    I wanted TDI, but it wasnt available in'08, I'm very happy with my Jetta though, turbo 4.

    However when I took car in for a recall--they found nothing was wrong--I got to drive an '09 TDI (a demo), trip computer read 50 mpg at 70 mph, this car only had 1400 miles on it!

    So I think the mileage of the TDI is worth getting vs the 2.5, and it did not seem slow at all with that torque!

    Drive a TDI and 2.5 and make your decision.
  • Mr_ShiftrightMr_Shiftright CaliforniaPosts: 44,422
    I don't think you'll get 50 mpg averaged out though. Just about all the longterm tests I read indicate that around 42 mpg would be real-world for most people in mixed city/hwy driving.

    This would be it about equal to the latest and greatest high MPG gassers, like the Mazda 3 or the Chevy Cruse Eco, but it would have an advantage in driving qualities that's for sure, and probably better resale value. On the minus side, it's going to cost more to buy.


Sign In or Register to comment.