The MK6 Fuel Consumption (Most / Least per Tank) Thread

[Brendan_A]

I would say the A/C did most of the damages.

usually idle at 0.3l/Hr ...with A/C is around 1.7l/Hr...

It pretty cool that the units change when the vehile idles..from L/100km to L/hr.

Man 0.3l/Hr is very low. I've got an new TDi Jetta and it only gets about 0.7L/Hr at an idle.

[cme2c]

The same happens in my 103TDI. Probably not as much though.
My average without air conditioner is 5.3l per 100km versus with air conditioner is 6.0l per 100km.
It really decreases the further I go (obviously).

Someone mentioned recycling the air rather than having fresh (hot) air coming in. Does the "auto" not do that itself? I have never had climate control before, so I've just assumed that on "auto" it would do all that for me. I am bloody lazy!

You set the recycling to auto. It then does it all for you, including switching to fully recirculating if the outside air is too polluted. Better than a convertible in the M5 tunnel

[cme2c]

Just refilled the 118TSI. 8.3 l/100Km by calculation . Last fill was 8.4. Last 2 cars used pretty much the same way, both got 10.6-10.8. They were a 2.4l Honda Accord Euro 5 sp auto and a 2.0l Peugeot 307 4 sp auto.

[Corey_R]

You set the recycling to auto. It then does it all for you, including switching to fully recirculating if the outside air is too polluted. Better than a convertible in the M5 tunnel

Yeah - but it will use outside air as much as possible and only switch to recirculate when it's poluted. If you manually set it to recirculate then as noted, it only then need to maintain your temp, e.g. 22 degrees, rather than keep cooling 35 down to 22.

It just means you then need to ensure you switch to outside air for a few mins every hour or so on really long trips to keep getting fresh air!

[cme2c]

Yeah - but it will use outside air as much as possible and only switch to recirculate when it's poluted. If you manually set it to recirculate then as noted, it only then need to maintain your temp, e.g. 22 degrees, rather than keep cooling 35 down to 22.

Interestingly, the climatronic will set the air to recirculate if it is very hot inside the car. I misremembered and thought it was on the outside temperature

It just means you then need to ensure you switch to outside air for a few mins every hour or so on really long trips to keep getting fresh air!

Yes. I gave up microsleeps years ago. It seems to me that if the system can monitor outside air for impurity, it should be able to do the same for air inside the car and let in outside air when necessary.

[Stealthy]

Thanks guys, that really helps.
I honestly thought "auto" would do it all for me. I guess the car can do only almost everything.
I have always used the recycle air function on other cars, so I will have to stop being lazy and do it too with my Golf.

[sillygogo]

Sorry correction from previous post:

Idle without A/c 0.6l/Hr , With A/c 0.9L/Hr,

Must be getting old, me memory a not as good as few days ago.

[cktsi]

Fuel figures from Sunday in Sydney where it was 41c out west & I drove to the eastern suburbs where it was 39c…

The trip from west to the east usually uses anywhere from 6.5 L/100 – 7.4 L/100. Sunday it used 9.5 L/100km (largely suburban driving)

The return trip from East to West normally uses 5.9L/100km - 6.3L/100 L/100km but yesterday I used 7.7 L/100km. Goes to show that the A/c working full time makes an incredible difference (largely freeway)

I never drove my MkV on the exact same route during the time I owned it, but in hot weather the 2.0 FSI was using 12.5 L/100km as a comparison in heavy traffic only out west. Take it FWIW.

[gregozedobe]

I think engines are less efficient when running on hot air (maybe because they have to pump more of it to get the same amount of oxygen as contained in cooler air ? ), so that will contribute to higher fuel consumption, and then there is the extra drag of running A/C.

I pay close attention to the fuel consumption of my Transporter 2.5 TDI (because I do a lot more Kms in it than my Octy), and my TDI gets best economy at around 22-25C. If it is hotter or colder it uses more fuel (even without A/C), and wet roads also use more. It gets lousy economy with a really cold engine (ie Canberra winter), and improves dramatically once the engine is properly warm.

[Flighter]

MFD Plus and Av. Fuel Consumption

Hi all,

Apologies if this is another dumb noob question, but is it possible to adjust the average fuel consumption readout in the MFD Plus display (for MY10)? Mine seems to do it just for the journey, which resets once I shut the engine down, and I'd like to be able to do it over (say) the entire contents of a tank of fuel etc. I couldn't find reference to changing it in the manual or elsewhere.

Thanks,

Flighter

[blutopless2]

not sure if the mk6 is the same as mk5 but am assuming so...
in the mfd the average fuel consumption, ave speed etc all have 2 readouts.
One will reset after the engine has been off for about an hour and the other will not reset till you do it.
there should be a little "1" or "2" marker next to the data to tell you which one you are in.
Pressing the reset button - but not holding - will switch between each one.
hth

[Flighter]

Oh yes, that did it. Thanks!

[Maverick]

Oh yes, that did it. Thanks!

There's heaps more interesting reading and features like this in the book in your glovebox. It's well worth taking the time to read it a few times

[Flighter]

There's heaps more interesting reading and features like this in the book in your glovebox. It's well worth taking the time to read it a few times

Yeah, I eventually found it tucked away in there somewhere.

[Corey_R]

lol
Yeah +1 to reading your manual from cover to cover! Anyone that has purchased their first VW and HASN'T done that is just robbing themselves of at least a few cool features of their new VW. Bump that up to many cool features for the un-intuitive and unobservant peoples out there