A6 Fuel consumption

[CPFC]

First time poster here.

purchased a new A6 2.0 TDI SE last month through drive the deal and now covered over 1500 miles - trouble is my MPG is averaging 38 - this is in economy mode and taking it very steady. A lot of my journeys are less than 10 miles through country lanes to work where I appreciate that the engine does not get a chance to get up to normal temp however since having the car the stop start system has only kicked in twice.

this is the first Audi i have owned and would welcome any thoughts on this and hopefully some reassurance that the MPG will improve as the engine covers some more miles.

many thanks

[ali00]

My 2.0 TDI BE has covered just over 1200 miles. I get around 26-28 mpg around town and 35 on the motorway. Although I have it in comfort and don't drive in a fuel efficient manner.

Tried it in efficiency for a couple of days, no real improvement in mpg and the drive was unbearable - the car felt so under powered and laggy.

As for stop start, I picked up my car in October from the dealers. It worked for the first week fine while it was still warm-ish, but these days it hardly ever kicks in on a journey around town but I have noticed on a warmer days it does kick in more, so its most likely down to the weather.

[micheal balbrig]

It would be nice to reassure you that MPG will improve,but the old1.9 tdi would give approx 45 mpg on mixed driving.
This would be reduced by the very cold weather and in your case even further by the short journeys.
I dont expect you will achieve a lot more with type of car and conditions,but changing air filter and checking that brakes are not binding and correct tyre pressure may help
Hopefully someone will bring better information
The a3 1.9 would give about 50mpg

[Whippy53]

There are one or two extensive threads on this subject. Have a look and see whether your question are covered, of not I am sure there will be sufficient response. Let's have some pics of the new baby please. Congrats and welcome.

[CPFC]

There are one or two extensive threads on this subject. Have a look and see whether your question are covered, of not I am sure there will be sufficient response. Let's have some pics of the new baby please. Congrats and welcome.

Thank you Whippy 53 - I did take a quick look through the other threads but did not see one on this subject - I will scroll back a bit further.

cheers
CPFC

[Whippy53]

Real world MPG 2.0TDI (http://www.vwaudiforum.co.uk/forum/showthread.php?128081-Real-world-MPG-2-0TDI)

Try this.

[Gmonster]

Hi. My two-litre-turbo has reached 3000 miles now and my circa average is 45-47 mpg. To achieve this you really need some extended journeys with a tendency to drive economically around 60 mph territory. No getting away from fact that the A6 is big (heavy) old bus that needs driving within very set parameters to achieve the specified consumption figures (I would say that you would need to drive mid 50's for an extended period to deliver anywhere near 55-60 mpg) My loose target is to try and achieve as close to 600 miles between fill ups (use the in car computer to monitor this). If your doing fairly short journeys/commutes then I could see you struggling to get mid/upper 40's consumption. Enjoy the car.


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[Wuffles]

And to the OP, never try and compare figures of a Multitronic with a Manual. They don't compare. Anyone commenting on MPG and quoting figures ought to be specifying gearbox too.

[wja96]

I switched from a 170PS A4 allroad to a 204PS A6 allroad and the difference in fuel economy is quite striking. In the A4, in normal driving, I could never get more than 40-45MPG (genuine, fill to fill) even after the engine loosened up with 50,000 miles on the clock. With the A6 I'm getting 42-47MPG (genuine, fill to fill) and it's getting better by the day. The A6 has done less than 3000 miles at this point and I'm confident I'll be getting 50MPG out of it at some point.

i always held the A4 was underpowered and therefore the car was having to be worked hard to get it to go. With the A6 it feels like a big, lazy, engine just ticking over most of the time. It feels relaxed.

i notice that the ultra-economical A6 that's coming soon has a 190PS engine. I'm absolutely convinced that 2.0l isn't enough to drag the A6 around efficiently. I know the 204PS might not be on the same planet performance-wise as the 245PS, but it's possibly the most economical A6 in the real world, rather than in Audi's artificial test environment.

[johnsimcox]

I switched from a 170PS A4 allroad to a 204PS A6 allroad and the difference in fuel economy is quite striking. In the A4, in normal driving, I could never get more than 40-45MPG (genuine, fill to fill) even after the engine loosened up with 50,000 miles on the clock. With the A6 I'm getting 42-47MPG (genuine, fill to fill) and it's getting better by the day. The A6 has done less than 3000 miles at this point and I'm confident I'll be getting 50MPG out of it at some point.

i always held the A4 was underpowered and therefore the car was having to be worked hard to get it to go. With the A6 it feels like a big, lazy, engine just ticking over most of the time. It feels relaxed.

i notice that the ultra-economical A6 that's coming soon has a 190PS engine. I'm absolutely convinced that 2.0l isn't enough to drag the A6 around efficiently. I know the 204PS might not be on the same planet performance-wise as the 245PS, but it's possibly the most economical A6 in the real world, rather than in Audi's artificial test environment.
Going to be interesting to see how the Ultra pans out. If (as I believe to be the case) the engine in the Ultra is the same as in the new A3 then it provides 184PS and 380Nm Torque compared to the 204PS 3.0 engine which delivers 400Nm of Torque. The 2.0 engine delivers its max power in a slightly narrower rev band and its max torque is only available from 1750 revs not 1250 with the 3.0. However these two engines are fairly close, although there still seems to be no plans for Quattro 2.0 car at the moment

[wja96]

Going to be interesting to see how the Ultra pans out. If (as I believe to be the case) the engine in the Ultra is the same as in the new A3 then it provides 184PS and 380Nm Torque compared to the 204PS 3.0 engine which delivers 400Nm of Torque. The 2.0 engine delivers its max power in a slightly narrower rev band and its max torque is only available from 1750 revs not 1250 with the 3.0. However these two engines are fairly close, although there still seems to be no plans for Quattro 2.0 car at the moment

I believe the 204PS engine is 450Nm torque with the S-tronic gearbox. I think the basic engine in the Ultra will be the same as the 'faster' Seat/Skoda/VW/Audi hatches but it's definitely a different tune (190PS) which will probably drive quite lethargically if the blue line/greenline/Ecomotive ranges are anything to go by.

[Daniel44]

I have a 2.0 TDI 2014 model A6 with Manuel transmission. I easily return upwards of 600 miles per tank. I do have it in Eco mode and I am very light on the throttle. I travel 12 miles per day to work and because of traffic I sit at 55mph most of the way. By the time I am at work the trip reads 50mpg. If I crawl the last mile or so, it can read as high as 57 mpg. I always use she'll when filling it up. I am sure the mpg will get better when the Spring comes.

[Gmonster]

Daniel: To be honest I am finding it a bit of a challenge to get 600 out of a fill-up. I defo get circa 550; but need to drive quite carefully in Eco mode to get to the 600 mark. In saying that; I do drive longer distances than you; but my average speed will generally lower due to traffic volume/holdups etc; mixed with a couple of longer trips per week (100-140 miles long etc) I have the 2.0 tdi; Manual.


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[Whippy53]

To be honest, I found tree hugger mode a bit of a waste of time. It's just plain annoying sometimes. I usually stick it in auto and let it go with that, I mean, lifes too short!

[EssexGonzo]

I don't have any C7 experience but my grisly old PD auto does an indicated 40+ on a Motorway and 30-ish everywhere else.

There are two things that my instinct tells me not to believe: the MPG readout on DIS and every single MPG claim made on an internet forum. ;)

Oh, and, you bought a £30k+ car so if it's only the odd MPG you're missing I wouldn't worry about it. The thing you REALLY should have on your mind is depreciation. :o

[Wuffles]

I don't have any C7 experience but my grisly old PD auto does an indicated 40+ on a Motorway and 30-ish everywhere else.

There are two things that my instinct tells me not to believe: the MPG readout on DIS and every single MPG claim made on an internet forum. ;)

Oh, and, you bought a £30k+ car so if it's only the odd MPG you're missing I wouldn't worry about it. The thing you REALLY should have on your mind is depreciation. :o

Quite, but one thing you can actually do a little something about is MPG. The depreciation is enough to make you want to cry, so this is some light relief.

[EssexGonzo]

Fair point. :D

[Gmonster]

The main analysis that I do on MPG would be linked to the 'between fill-ups' method: Yes can look at trip computer numbers as a guide; but it would be frequency of fill-up and related calculated average MPG that would be my key area of interest: and yeah it is bit of light relief. As far as depreciation goes; yeah could have bought a 20k saloon but would have missed out on the whole ownership/driving experience/benefits.


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[pitch3110]

I am on my third new Audi and they have all improved 10k on 10k and this is no time of year to even consider mpg.

My A5 177 BE Coupe is by far the most economical I have had. 150 mile round trip last week on A roads I had the DIS reading 61.7 and I can drive it all day long over 50mpg.

Trust me me gents get 20k on the clock and things will look a lot different.

Ta
pitch

[Wuffles]

Trust me me gents get 20k on the clock and things will look a lot different.

We have 30k, they didn't look different. Sorry. But then, you didn't mention whether yours is a multitronic (or auto variant) or a manual. I'd hazard a guess though :D

[pitch3110]

Manual it is.

My previous was a 143 multi A4 and current is smooth, quicker and a lot lot more easy on the devils fuel.

I beginning to think I ought to change and it will be either an A5 SB or A6 but the final choice is going to be really tough with all the impending updates and of course the Ultra 190.

I think though Mrs P will have the coupe and we will move the A3 on.

Pitch

[Whippy53]

The new A4 looks really good!

[Timothy Nathan]

It was noted on the previous thread, and should probably be noted here, that the 3.0 litre Multitronic appears to deliver considerably better mileage than the 2.0 litre.

[Plgaler]

I've done nearly 50k in my 2.0tdi Multi over 2 years, and although I don't use the between fill ups calculations, there are definitely quite a few things that affect the mpg:

- Warmer weather definitely, if nothing else than the fact the engine gets warmer quicker
- Those first 10-15 mins while it warms up - there's a lot of sensitivity here (even when you turn off the supplementary heater), so don't hoof it, warm it gently (which is never a bad thing if you look after your car)
- Don't use the ECO mode, and then accelerate, it almost seems worse than the "Auto" mode and driving in a balanced manner letting the car work out when to play the ECO rules
- AC, putting that in ECO mode seems to take longer to heat/cool the cabin, and it's almost always on trying to keep it at a temp. My car seems happier on the Medium setting
- Turning AC off (which I know has it's downsides - i.e. brittle tubes after time) does make a reasonable difference (sure we all guessed that though)
- More of a "lift off" approach to driving, if you're on the motorway. Could the regeneration work better in that way rather than when you're on the brakes?
- Any unnecessary electrical items that show up on the DIS as fuel consumers i.e. heated wing mirrors (which probably doesn't account for much, but as part of a series of actions adds up)
- Running with a half tank over a full tank seems to make a fair difference. I guess that's obvious due to the weight change

If I keep a fair eye on all these things, and I still drive in a "spirited" manner using sport from time to time, I can still get a reading of anywhere from 45-52mpg on the DIS.

I also noticed that if you reset the trip after the car has warmed up - 60mpg is much easier to attain - so the engine temp may well be one of the the biggest factors.

I wonder, does anyone keep theirs well tucked up in a warm(ish) garage overnight (assuming it'll fit!!) and get good economy from the start as a result?

[ti rich]

44k miles here and mpg has not improved from new. Has averaged 42mpg from new despite driving like Miss Daisy.

Very, very disappointed..........

And yes that is garaged over night! Agree with all the above points.

[john2107]

3.0 biTdi, 14k miles in last 6 months, long term mpg reset when I bought it...now showing 43.3 mpg over the 14k miles. Rather pleasing. No urban driving, mainly motorway and fast A roads. And no, I don't drive like a vicar. Merely (relatively) sensibly.