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vanbcguy - Thanks for the detailed summation. It helps to paint a clearer picture of what is in play with this technology. Classic thermodynamics teaches that mechanical efficiency goes up with compression ratio. It will be interesting to see if VW can utilize this technology to allow a return...

For those who want to understand more about the technology quotient of the Jetta Hybrid plant, please see the article linked below: https://www.dropbox.com/s/p5hw3y6kghtqto7/hybrid%207%20speed%20dsg.pdf Forget about doing any mod's to these hybrid plants. Very carefully managed engine...

Found this on-line today. It appears that Passat SCR back end does retain many of the components of the Mk6. From the limited description it looks like the SCR back end continues to rely heavily on both LP and HP EGR. I think IndigoBlueWagon comments ^^^^ are spot on. PLEASE IGNORE MY...

I stand guilty as charged. There is definitely a fair amount of speculation in my post. Hence my handle - specsalot :) The comments from sales was something I heard from multiple salesman at multiple dealers, so I think that was reflective of VW's "company line" at the time. I believe it was...

I fully agree that there are many great stories and satisfied owners. I never had issues with mine. The long term proposition with Mk6 back end treatment issues was why I traded. The only other viable option (in my view) is to have these systems removed. This option ($) inhibits resale of the...

Love'd my 11 GOLF TDI, ran it ~ 34K miles no issues. I still believe (WAG - no hard data) emission problems begin with sensor drift. Traded for a 13 Jetta Hybrid in part because household driving patterns were changing. I know the hybrid drive train has it's own complexity concerns. Just crossed...

If I understand correctly, the Urea (SCR) system allows for leaner engine operation (more air / less EGR). By implication this may mean that the DPF takes more time to accumulate soot, so regen's may be space further apart ? The 64 cent question - What intervals do the DPF's on Passat's regenerate?

There are multiple processes that take place within your exhaust treatment system. Regeneration of the DPF is only one of them. Beyond that, the ECU must execute DeNOx and DeSOx programs to clear the catalyst units downstream of the DPF. If you want to read up on the details, locate a copy of...

Just had the "climate control head" on my Jetta Hybrid go bad at ~ 8.2K miles. Symptom - controls just stopped working the way they used to. There were several fault codes (sorry can't quote them as I type this) but one of the was that the control module wasn't programmed. Of course definitely...

Jetta Hybrid - last spring - just broke 8000 miles - no issues with engine or DSG tranny. Climate control head just dumped, but is bring replaced under warranty on Monday. The hybrid has a slick / smooth drive train. If you hate DSG, this car isn't for you. If you like DSG, the hybrid is an even...

The Jetta Hybrid is a great trade alternative for folks fed up with VW still betting the farm on Mk7 [Bosch CP 4.1 HPFP + SCR/urea]. Yeah, I know I just bet the farm on another bunch of potentially unknown latent defects on the new hybrid power plant. But hey it's spark ignition / gasoline...

Decent article. All comments posted are in the range of user potential experiences. I made a decision to trade away my TDI based on postings in these forums. Also based on some appreciation of the challenge of Mk6 technology. Reading between the lines my conclusion is that Mk6 TCO won't...

Breaking 7K miles on my Jetta Hybrid SEC. Routinely run close to 40 MPG around town in traffic. This drops in summer with AC on. Highway (doing speed limit) posts in the range of 40-42. No complaints. Per tomo366 equipment description - the Jetta Hybrids are WELL equipped for their premium price.

I don't do much cold weather commuting in FL. This has been a warm winter, but even on the cold days I've never run at 3 more than 4 or 5 minutes. I think its good to have a setting that can warm things up quickly. I agree that their isn't much difference between 2 and 1. This seat heating is...

Wife and I logged ~ 32K highway of ~34k total on an 11 Golf TDI DSG. Great vehicle, no issues. It you look at the technicals of the MK6 fuel system and read through the postings you will probably conclude that the MK6 will be expensive to maintain as it passes the 100k mile marker. The Mk6 fuel...

The 1.4 will definitely move. I believe that VW controls bleed down some boost to enforce a torque limit on the engine so as not to over stress the clutches / transmission. It's a carefully managed performance envelope. I like the crispness of the ride and the throttle response. It's not a TDI...

Off idle accelerating the EGR (exhaust gas recirculation) system on the Mk6 goes through a transition between the utilization of higher pressure EGR and lower pressure EGR (from the exhaust system. People have reported issues with sticky exhaust system throttles. I don't have personal...

An impressive looking kit and some really nice install work. If I still owned TDI - this would be on it. I assume getting one of these kits is going to be on almost every TDI enthusiasts Christmas List :)

Those numbers seem reasonable. Have you seen any major changes in overall vehicle fuel economy since the mis-firing's began?