Discussion in 'In the News' started by xcel, Jun 1, 2013.
I think there's only 5w-30.
Yes, I have only seen 5w30. And most of our driving tends to be country roads and some highway. Typically we drive like a grandma in city driving.
I was informed that the turbo failure isn't related to the emission systems, but rather a flaw in the turbochargers manufacturing or design as they seem to fail on the compressor side with a broken shaft.
This is how they had some failures with under 10,000miles, long before any carbon had a chance to accumulate.
Did you experience a turbo failure?
The next time I am out in Southern Calif., I will try and run through all of the VWs - Golf, Jetta, and Passat - with the new EA288 2.0L TDI engine.
Where are you getting this from, and more important have they identified which cars got the bad turbos? Is it a bad batch, or bad engineering? And if it's bad engineering have they revised the part number or something so we can tell if we have one that bears watching?
Sort of off topic here, but turbo and shaft related:
In Formula 1, they're running V6 turbos this year. Mercedes' dominating engine uses a split turbo - the exhaust driven turbine is in the back while the compressor is in front of the engine. The drive shaft runs through the engine's V. We're talking a 100,000 rpm turbo shaft the length of the V6 engine. Thing's gotta be SUPER strong.
... or be super stiff, or have mid-length bearings, to avoid reaching the critical speed of that long shaft.
Yes, first post on page 28 I described it.
Sorry, I don't have much specifics for you. That is just what my dealer told me. Back on the previous page of this thread, it was speculated that premature turbocharger failure in the 2.0TDI in the NMS Passat may be due to interrupting the regen cycle.
I enquired if this could have contributed to my failure at 60,000miles and was told that it was a defect in the turbochargers as they had the same failures on a couple of cars that only had a few thousand miles on them.
I don't know if the part they installed is an updated part number or not, but they assured me that none they have replaced have suffered a second failure.
It is a known problem to VW as they have extended the warranty on the turbochargers to, I think 70,000miles.
Thanks and should have looked back further. I doubt it has to do with Regen as passive regeneration is so prevalent that few have ever experienced one with the Passat.
Just a little update. We had the 23N5 ECM update performed over this winter which is supposed to reduce turbo failures. Well, almost immediately noticed we could not get fuel economy up with this. Apparently it must reduce boost with cold engine and cold weather and no matter what we did, could not get any decent fuel economy this winter.
Just took a trip from Muskegon, MI to Dauphin Island, Al last week also and found that despite the dash saying we had 61 mpg on the trip down and 60mpg on the trip back, my hand actual mileage was 66.3 and 55.3 respectively. I checked the odometer accuracy against gps over the 1000 miles and it was less than 15 miles off or about 1% with nearly bald oem tires.
I was a little disappointed with my results, but not that surprised seeing how it is almost non stop rolling hills all the way through Kentucky, Tennessee, and about half of Alabama, and I never get that great of mileage in Michigan either compared to Illinois and Indiana...
Just got out of a 15 Golf SportWagen with the 2.0L EA288 three weeks ago. An almost 9 percent over report. Got out of a 15 Jetta TDI with the 2.0L EA288 two weeks ago and it was 3.6 percent optimistic. Will be doing a calibration drive of the 15 Golf TDI with the 2.0L EA288 over some mountain passes in almost a month.
So the flash changed your offset?
Was speaking with a good friend of mine who is a well known VW tech on the web. He said the turbo redesign has essentially cured the turbo failures as he was replacing them quite frequently through the 3Q of last year. Not any more.
There is some new oil coming from Pennzoil called Platinum Euro LX SAE 0W-30 Fully Synthetic Motor Oil. It is 507.00 compliant and has a cST at 100 degrees C of 11.9. I have only seen an MSDS, not the spec sheet for it so far.
I expect that to be among the best motor oils that money can buy. As thin as practical, yet durable, protective. Efficiency. Yes. I saw a Golf Sportwagen on the highway yesterday. It was gorgeous.
Wayne, I'm not sure if the ECM update has anything to do with it, or if was driving conditions or what, but I was surprised when I filled up in Alabama, after an almost 1000 mile drive, to find my hand calculated to be that much lower than reported. And then to have the exact same thing on the way back...
What I do know is that after that ECM update, the cold weather mileage is down more than 5%, especially with a cold start, but even at operating temp the mileage does not want to get above 50mpg which makes it hard to average even mid 40's on a longer drive.
Side note: do you have any recommendation on tires, tirerack has Continental truecontact for $123, even though it isn't listed as "Ecoplus" like the Purecontacts in the title, it says in the specs they are ecoplus LRR and seem to have good reviews. The originals were the Hankooks and I don't really care for them.
The one thing I avoided in the 2012 Passat TDI was cold temperatures. If the temps dropped below 65 degrees, it fell precipitously. You can read that detail in the first few pages of the story. But you said this drop for you was new after the flash, right?
Regarding tires, the Continental PureContact are pretty good. The Goodyear Assurance FuelMax, Bridgestone Ecopia's and Michelin Energy Saver A/S' although the latter is a little slick in the rain.
Hi Wayne, yes we my wife and I both noticed the drop in mileage after the flash. It took place after we were already well into the winter so it was pretty obvious when we saw the drop.
Was reading on tdiclub the car kicks into blowtorch mode almost immediately if the ambient temp is less than 50 to warm it up. One of the curious things I've noticed with my GTI is even though the water temp is hot, oil temp is still so low it doesn't register. The wisdom on the forums is wait until oil is at least 170 to start flogging the car to protect turbo. Can't vouch for the validity of this, but wonder if this has some bearing (ha ha ha) on TDI turbo failures.
Hi Brandon, Nathan and Mike:
Any of you know of the 23N5 ECM update arrives with the all-new EA288 or is it being flashed into it now?
A VW tech friend on FB says the Golf SportWagen has no updates to it yet. It was not nearly as efficient as the Jetta TDI.
Just heard back from my VW Mechanic friend, "@TheHumbleMechanic", Charles Shackelford, and he said the 15 Jetta TDI, 15 Golf TDI and 15 Golf SportWagen are all on their original flashes with no updates available. Good to hear.
What was the mileage on the Golf vs the Jetta? Wonder if the Jetta had more miles on it to break it in a little more.
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