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This week, we're testing the 2014 A6 TDI quattro.. any questions, please ask!

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Old 01-30-2014, 08:29 AM   #1
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Default This week, we're testing the 2014 A6 TDI quattro.. any questions, please ask!

We'd love the chance to answer any questions that people have about the car. Please, by all means, let us know!

So far we're loving it. Monstrous torque, smooth and quiet effortless power. Awesome!
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This week, we're testing the 2014 A6 TDI quattro.. any questions, please ask!-kjh_9975-01.jpg  
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Old 02-02-2014, 07:39 PM   #2
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Hey Kris- do you have real world mpg data based on your own usage that you can compare to the 3.0T? Any other straight up comparisons?

Hope you are well.
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Old 02-02-2014, 08:53 PM   #3
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I'd like to see a dyno curve to determine the best shift points
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Old 02-03-2014, 07:33 AM   #4
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Do you feel a noise/harshness difference between the TDI and 3.0 TFSI after spending a long time in the car? On the test drive I mostly noticed the extra noise of the TDI clattering, but it didn't really bother me.

A comparison to the 2.0T/3.0T (both in terms of real world fuel economy and perceived performance) would be great.
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Old 02-03-2014, 07:33 AM   #5
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I think the bottom line question for me is how long would I need to keep it before the fuel savings make it worth the additional $2-3k over the 3.0t based on real world mpg realized. Hope you guys drive it normally, and not like some of the journalists I've read about recently who basically tried to extract every last bit of juice from the tank in an experiment to see how high they could get the mpg numbers.
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Old 02-03-2014, 07:40 AM   #6
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So far in our "normal" driving we're getting around 30mpg on average, including a fair bit of stationary idling due to cold etc. Also we're most certainly enjoying the thrust from the TDI engine, so not hypermiling by any stretch of the imagination.

by comparison, we'd probably see mid to low 20s with a 333hp trim 3.0T engine in the same driving.

In all fairness, we'd need to conduct back to back tests in the same weather and conditions. The last 333hp A6 we tested was in much warmer weather, and temperature has a huge impact on fuel mileage.
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Old 02-03-2014, 07:42 AM   #7
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We've been averaging 30mpg and up in very local driving which involves low speeds and hilly terrain, stop and go, and lots of idling.

We've also had very cold weather which hurts fuel economy a lot.

I happen to love the power delivery from the TDI engine, and the sound too. But it may not be for everyone.
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Old 02-03-2014, 07:44 AM   #8
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Hopping out of my old A6 with the 2.8 V6 into the TDI I certainly noticed that the TDI engine is a but "busier" sounding, as well as a little bit of vibration at idle. Keep in mind that it was -5F at the time, and the TDI was cold, and the 2.8 not.

It's tricky to compare it directly to the 2.0T and 3.0T since I don't have them handy, but I CAN say that I find the TDI to be very relaxing to drive, thanks to the very sedate nature of the engine, and the ultra low revs it turns at.
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Old 02-03-2014, 08:46 AM   #9
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Thank you! This sounds like everything that one would want a diesel to be. Diesels might not be for everyone, but I think the characteristics of this diesel, as well as the compelling range and fuel economy improvement, might tempt more Americans to take a look at diesel.

I only test drove the TDI for a short loop when doing my shopping. Ultimately, the 3.0T's power and responsiveness across the whole rev range won me over, but I liked the TDI a lot more than I had expected myself to!
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Old 02-03-2014, 10:11 AM   #10
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What is the diesel exhaust fluid tank all about? I saw mention of this in another review, had to be refilled at every oil change and didn't appear to be cheap.

I haven't had a diesel for quite a few years, but this is something new.
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Old 02-03-2014, 10:17 AM   #11
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I would appreciate any insights on cold weather starting. I've heard a few instances of people not being able to get their TDIs going when it got really cold.
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Old 02-03-2014, 03:52 PM   #12
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Diesel Exhaust Fluid (DEF) is <$10/gallon. I'm not sure what is the capacity of the DEF tank in the Audi, but it should not cost more than $60 for every 8-10k of driving.
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Old 02-03-2014, 03:58 PM   #13
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Quote:
Originally Posted by PJRed2008 View Post
What is the diesel exhaust fluid tank all about? I saw mention of this in another review, had to be refilled at every oil change and didn't appear to be cheap.

I haven't had a diesel for quite a few years, but this is something new.
The AdBlue tank is filled at your service intervals and is supposed to last up to 10,000 miles.

It is generic, so if you need to top off, go to your auto part store and the price should be reasonable.

This is what I understand at this point.
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Old 02-03-2014, 04:01 PM   #14
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Quote:
Originally Posted by PJRed2008 View Post
What is the diesel exhaust fluid tank all about? I saw mention of this in another review, had to be refilled at every oil change and didn't appear to be cheap.

I haven't had a diesel for quite a few years, but this is something new.
AdBlue or DEF (diesel exhaust fluid) is basically part of the system required to meet emissions standards:

Diesel exhaust fluid - Wikipedia, the free encyclopedia Diesel exhaust fluid - Wikipedia, the free encyclopedia

It is scheduled to be refilled @ every oil change and you can find the fluid on-line for < $50 total for the 5 gallons required to fill the tank, so not that expensive compared to the cost of an oil change itself (the AdBlue refills are included in the price of AudiCare and cost is the same for the TDI vs 3.0T).
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Old 02-03-2014, 04:03 PM   #15
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I would appreciate any insights on cold weather starting. I've heard a few instances of people not being able to get their TDIs going when it got really cold.
No problems here and it was down to 5'F last week.

To date the stories seems to same as gas vehicles. You can run into bad fuel and the freezing issues that might appear. We are all monitoring but the Q7 TDI and European experience do not suggest problems.
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Old 02-03-2014, 04:11 PM   #16
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Quote:
Originally Posted by Brooklyn View Post
I think the bottom line question for me is how long would I need to keep it before the fuel savings make it worth the additional $2-3k over the 3.0t based on real world mpg realized. Hope you guys drive it normally, and not like some of the journalists I've read about recently who basically tried to extract every last bit of juice from the tank in an experiment to see how high they could get the mpg numbers.
As Kris mentions, I believe low 20 mpg's is about avg for the 3.0T in mixed driving (I averaged about 21 mpg in my 2010 3.0T over 45k miles). With 6,500 miles now on my TDI, I'm getting about 31 mpg (almost 50% better than my 3.0T). In my area, diesel is about $.20/gal more than premium so based on driving 15,000 miles per year, it will take me about 4 years to recoup the added cost of the TDI; however, this wasn't a motivating factor for me as I simply liked the longer range (less fuel stops) and torque of the TDI.
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Old 02-04-2014, 04:13 AM   #17
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Good point on the increased range, and 31mpg is nothing to sneeze at. I'm averaging 20.6 in my 3.0t here in DC area traffic.
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Old 02-04-2014, 05:34 AM   #18
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Kris:
I'm a huge fan of the TDI, but I'd like to know if you think Audi Care is worth it for the TDI. I don't think it is. Do you agree?

To supplement other user's AdBlue questions:
You can get AdBlue, strangely, at Sherwin-Williams stores as well as VW, Audi, BMW, and Mercedes dealers. AdBlue is the same as diesel exhaust fluid (DEF), but apparently it's a brand-name of DEF. It's developed by Mercedes and available under collaboration among other auto makers. The significant reason for using AdBlue is the packaging of the fluid allows for easy fill-ups with the proprietary filler neck design within the AdBlue bottle. You can get DEF from truck stops also, since most diesel engines need DEF. You might have seen signs that say "Bulk DEF available" at many gas stations and truck stops. Bulk DEF is cheap but I think the dispensers are mainly for the big rigs - so there's no easy or spill-free way to refill the ~7 gallon AdBlue tanks in the MB, Audi, VW, and BMW cars and SUVs.

You do not want to get DEF on the paint and all diesel cars have a different location for the DEF filler. The VW Passat, for instance, has a tank in the trunk and the filler is in the trunk under all the panels. It's a messy job to refill the tank in the Passat. If there's a spill, it crystalizes like road salt and that's not good for the paint - you'll want to clean that up. However, the Audi A6's DEF filler is right next to the fuel filler, making it easier to fill and clean if not refilling with the AdBlue bottle.

With the A6, you'll get warnings when you approach 600 miles left on the AdBlue DEF tank. When you deplete the tank, you'll have no way to restart the car until you put at least 1 gallon of DEF into the tank. This is to comply with US emissions regulations.

There are two DEF tanks, in sequence (small and large tanks), and one of the tanks has a meter to measure the fluid level. The level can only be adapted with VAGCOM. Even if you grab a .5 gallon bottle of AdBlue and fill the tank every 2k miles, for instance, the car will not recognize the fluid because it's measuring the contents of the larger tank and comparing that to the metered sprays from the exhaust. Even if the tanks are full and you didn't readapt, the car will still be counting down. So DIY for DEF is going to require VAGCOM or a visit to the dealer for a fluid level reset.

I spoke to my service guy and he said that if I wanted to DIY my oil changes and DEF/AdBlue, he doesn't have a problem resetting the DEF reading for free. A full and adapted DEF tank should last about 10k miles, depending on many factors such as engine speed, load, and temperatures.
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Old 02-04-2014, 05:38 AM   #19
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http://microsites.audiusa.com/ngw/13...e-Brochure.pdf

To supplement other user's AdBlue questions:
You can get AdBlue, strangely, at Sherwin-Williams stores as well as VW, Audi, BMW, and Mercedes dealers. AdBlue is the same as diesel exhaust fluid (DEF), but apparently it's a brand-name of DEF. It's developed by Mercedes and available under collaboration among other auto makers. The significant reason for using AdBlue is the packaging of the fluid allows for easy fill-ups with the proprietary filler neck design within the AdBlue bottle.[/QUOTE]
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Old 02-04-2014, 10:29 AM   #20
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Thanks Kris. After reading numerous articles concerning the acceleration I was wondering if Audi put out optimistic figures to enhance sales of the car. However from reading your previous articles I know that you will give us the straight goods without input from either Audi or Car and Driver. Regards,

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Old 02-04-2014, 10:29 AM
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