2010 Golf TDI blog and observations

Discussion in 'Diesel powered automobiles' started by seftonm, May 5, 2010.

  1. seftonm

    seftonm Veteran Staff Member

    Lol let me know when you invent that deflector shield. I'll certainly buy one ;) Not sure if you noticed my front license plate that day. It's covered in some bad bug stains from my old car when I took less care to wash it. Looks a little out of place on the new car. Speaking of that, it reminds me of this last picture I got of my old car with a bad stain under where the front plate used to be. It's a good illustration of how much sleeker the new car looks compared to the older one.

  2. seftonm

    seftonm Veteran Staff Member

    Managed to find some Mobil ESP 5w-30 meeting the VW 507.00 spec at Pep Boys in the USA. So I'm pretty much all set for doing my own oil now.

    Spent a couple hours under my car last weekend installing an aluminum skidplate. I had one on my old car and came to the conclusion that it's a nice item to have on low cars driving through rural Manitoban winters. That extra layer of protection gives nice peace of mind for me and is totally worth it. While under there, I noticed they're finally starting to pay attention to underbody aerodynamics. Things were much better covered up than with my old car. The oil pan seems to have a bit of extra insulation on it as well, which was somewhat surprising.

    OEM plastic belly pan

    Belly pan removed

    Skidplate installed
  3. Right Lane Cruiser

    Right Lane Cruiser Penguin of Notagascar

    Looks good, Mike! :thumbs_up:

    Where did you get the oil? Was it here (MN)?
  4. seftonm

    seftonm Veteran Staff Member

    Yes, it was somewhere on the south side of Minneapolis. I think that's pretty much the closest one to here (other than one in Coon Rapids ;)). I was short on time that weekend, otherwise I would have tried to stop by and see you.
  5. Right Lane Cruiser

    Right Lane Cruiser Penguin of Notagascar

    Well, if you ever need more I could try to ship you some. (WARNING!! I have no idea what shipping oil would entail!!)
  6. seftonm

    seftonm Veteran Staff Member

    Thanks! Luckily the 10k mile interval and my below average yearly mileage should mean I'll usually be able to find a friend or family going down there in time to pick some up for me.

    This car seems pickier about low quality fuel than my last one. I don't know how bad this stuff was, but I put in a couple gallons at a local supermarket to get me through the week until I could get to my preferred station. It idled noticeably rougher when cold and actually stalled once after a cold start one morning. Guess I won't be filling there again.
  7. billmc

    billmc Member

    Hi Mike,

    I was trying to track down some previous advice re: a "hesitation"/"hiccup" problem w/ my 2010 Jetta TDI Sportswagen. I mistakenly thought it came from Brick/Tim, and he suggested I ask you. The "sensation" is as if there is a momentary skip in the fuel delivery to the engine, then it goes away for a while. The advice suggested two three-letter codes/acronyms, one relating to low-gear, low-rpm acceleration, and the other to highway speed deceleration, including while in cruise mode. It also advised that the problem is well-known among Audi-version owners and that some dealers are aware of a software fix, while others are clueless. My dealer is in the latter group, and they say that nothing shows up when they check for codes, and, of course, it didn't happen during the 5-minute test drive with the mechanic. Ironically, it's happening more frequently since my 20K service during which they made some "recall" fix to, I think, an oxygen sensor.

    I love the car in every other respect (can't quite match your mpg but happy nonetheless), but having shelled out for a brand new car, I don't think I (or anyone else) should have to put up with it.

    Any thoughts would be appreciated.
    Happy and safe driving to all,
    Bill M
  8. seftonm

    seftonm Veteran Staff Member

    Hi Bill, I am going to guess that those acronyms were EGR and DSG. The DSG is the automatic transmission that the TDI engined vehicles use. It's an automated manual transmission with computer controlled clutches. It seems that in some situations, the computer still isn't as good as a human at modulating the clutch and there can be some hesitation / jerkiness at low speeds. The DSG and Ford's PowerShift may be some of the best automated manuals available but there are still a few things that need fine tuning.

    EGR stands for exhaust gas recirculation and is an emissions control mechanism to keep nitrogen oxides down. The TDI has a relatively complex system with two different EGR paths for different load / emissions control situations, and I believe different turbo boost levels are required as well for the different EGR paths. When switching between the two, there can be a momentary hesitation.

    I am not aware of any software fixes for this, but you may want to read around on tdiclub just to make sure. It is unlikely that you will see any codes, because for the most part, this is normal operation. Something that we have to put up with for meeting emissions regulations.
  9. billmc

    billmc Member

    Hi Mike,
    Thanks ever so much for your considerate reply. I will bring your thoughts to the attention of the dealer and see what they have to say. I will gladly post any feedback I get so that others will have it. Perhaps, as you say, it may just be the price to pay for being "clean".
    Best Regards,
  10. seftonm

    seftonm Veteran Staff Member

    Did my first oil change last week. Despite the less accessible filter location, it was much cleaner than with my old car. The filter comes out without dripping any oil. Surprisingly, it's a much smaller filter too. Maybe more modern materials or the cleaner burning of the engine allows them to do that.

    This engine may not reach the T2B2 / T2B3 levels of some of the hybrids, but I was impressed with how clean the exhaust pipes were looking. Pretty much the same as the day I picked up the car, and no traces of soot at all after 10k miles. My old car probably had a denser coat after 10 miles.

  11. msirach

    msirach Well-Known Member

    Wow, that is clean. It looks like freshly extruded pipe.
  12. seftonm

    seftonm Veteran Staff Member

    Got to try out its cold weather starting performance yesterday. Friend needed a boost and car wasn't plugged in. -22C (-8F) and car hadn't been used in about a week. Result: Those glow plugs are fast! So much faster than what I was expecting, I was too busy shutting off the radio to notice the light had gone off already. Engine wasn't that loud after starting either, but it sure vibrated a lot for the first 30 seconds or so. A high idle function would probably help that, at the expense of more fuel though. Think it was burning 2.2L/h after it fired up :eek: Used to more like 1.2L/h when using the block heater in the same conditions.

  13. Right Lane Cruiser

    Right Lane Cruiser Penguin of Notagascar

    Where is the light in the dash shot shown in the video?
  14. seftonm

    seftonm Veteran Staff Member

    The glow plug light is the light closest to the "1" in the tach, it stays on for 3-4 seconds. I'm used to more like 10-15 seconds from older diesels. I'm not sure how to make the embedded video bigger, but if you go to the Youtube video and watch the HD version, you can kind of make out its shape. It looks like this:

  15. Right Lane Cruiser

    Right Lane Cruiser Penguin of Notagascar

    Ah -- thanks, Mike! I figured it was one of the two red lights on the tach but couldn't make them out.

    You are right -- that light went out mighty quickly! :eek:
  16. seftonm

    seftonm Veteran Staff Member

    Had my first in-city DPF regen in recent memory so I checked out the FCD to see how much fuel it was using. 0.9-1L/hr when doing the regen at idle, dropped to 0.6L/hr once it was done. Temperature was about 34F.

    Maybe it's just me, but I feel like I can be a little more aggressive with the clutch now. We noticed that during the Jetta TDI Sportwagen review, the clutch was a bit sensitive and numerous 2.0 TDI owners have said the same thing. Somewhere around 700 rpm (idle is ~820), the ECU decides it's had enough and simply cuts fuel to the engine. I'm guessing this is for longevity of some component or maybe for emissions reasons. Anyway, I've seen the tach down in the region where it would usually stall and now it keeps running. Don't know if it's just me getting trained to keep it from stalling, or if the engine / ECU is breaking in and becoming a little more lenient. Some people have also mentioned that there is a dealer reflash that allow for a lower minimum engine speed, I'll inquire about that next time I'm at the dealer.
  17. PaleMelanesian

    PaleMelanesian Beat the System Staff Member

    That regen is near my normal idle gph level. It's too bad your regular idle is so high for a diesel.
  18. seftonm

    seftonm Veteran Staff Member

    Suspect it's in the name of meeting emissions. Curious if the new Passat with SCR will do better.
  19. seftonm

    seftonm Veteran Staff Member

    Just realized it's been almost a year since I visited the dealer. Going to probably make an appointment soon, an annoying dash rattle has come up that I want to take care of before any more road trips.

    Ordered a sub to put in the hatch. The base stereo is kind of lacking in the bass department and I am missing some of the basslines that I enjoy on my home stereo. Hoping this will help fill in that void.
  20. seftonm

    seftonm Veteran Staff Member

    Not quite as good as a certain F-150 :p But 130 passenger mpg with AC on, keeping up with traffic, and a full load in the car and the roof bin isn't too bad. The one tent may also look familiar :D


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