That says you were in the car for over an hour and only did 19 miles, averaging 17mph. Thats a heavy "nip to the shops" to be fair.

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Yup, pretty obvious there is something wrong with your car.

Time to contact the dealer and at least let them scan for errors from any one of the numerous sensors they have fitted to cars these days.

 

Do not accept the "it will improve as it runs in" BS, that is total rubbish.

 

I know a guy in the UK who hounded his dealer with the bad consumption he got with his diesel BMW until they changed the vehicle. But he does have the hide of a rhino and persistence of a bulldog

I think you would probably settle with the dealer identifying the cause of the problem and fixing it.

 

Look I know you guys in the UK are proud of your 'imperial' heritage and insist in running in mpg mode but if you change it to l/100 for a while then it will indicate consumption during stationary tickover in litres per hour. You will probably have to turn off the stop/start facility.

When warmed up I used to get 0.5 l/hour showing on my old 1.9d Octavia and I get 0.4 l/hour on my current 1.4tsi (obviously no ancillaries running).

If it is showing anything higher that is a direct indication that there is something wrong.

Edited 15 November, 201510 yr by Gerrycan

So just checked the l/h.

Oil temp is at 100c and it's flicking between 0.7 and 0.8 l/h. Settled at 0.7 now.

Oh and a/c was off

Are the tyre pressures correct? You might want to up them to the ECO settings.

Are the levels all ok Oil etc?

Why are You guys so surprised? This is not my first new car, I drove a respectable fleets od cars. vRS TDI is not fuel saver (fullstop)

Calm drive back from seaside, 250miles, average speed almost 62mph.

On 140km/h You just cant be lower than 6.2 or 6.3 l/100km (87mph at shy 38mpg).

And Yes You can make it 55mpg but only under 110km/h (70mph) on Swiss or UK highway on straight line in 6th gear beeing careful with Your foot. Tested and prooved. Beside the law, I don't call that a drive, especially for the vRS.

I would like to see Your numbers while driving on continent.

Cruise control is not the most efficient way of driving, I would imagine you could of got an extra 5mpg by regulating the accelerator with your foot. Also 87mph will use far more fuel over 250 miles than what the UK speed limit of 70mph will use. I drove from the midlands to Somerset (about 200 miles) last month sticking to UK speed limits with no cruise control. The result was 59mpg.

Just did it manually. 0.2 l/100km difference, closer to 1mpg difference. I didnt want to state that before checking, but ACC is doing his job quite well.

Eitherway, I find it on TDI's much more efficient to blast it to desired speed (almost pedal to the metal) and then keep that speed with sensitive corrections. If You have room for that of course, try it.

87mph compared to 70mph is like 38mpg vs 55mpg. I'm not surprised, as I drove close to 95mph in Germany and it was something like low 30's... The consumption is jumping exponentially with speed.

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Not a TDI but in the 300 miles i've had the TSI i've not seen it go above 36. Drove it back the 150 miles not exceeding 70 and holding a pretty steady 60-65 most of the way. I'm hoping it improves. Certainly not the way i'm driving it as i had managed to get an average of 26 out of my impreza hatch which should translate closer to 38-40 on something like this. Very little braking and acceleration involved due to the times i drive around. If i can get around 35 as an average but 40+ on a long run i would be more than happy. Right now i'm just above 30 on whatever fuel they gave me.

Edited 15 November, 201510 yr by Rahr85

Just checked the brochure and urban is 48.9.

I didn't get that sat at 70mph on a dual carriageway.

I think the dsg gearbox in the diesel must be a big factor, ive checked my long term computer on the car and over my last 2000 miles i have averaged 48mpg. This is a manual estate, not many short journeys mostly 13 mile trips to work not in rush hour traffic

So just checked the l/h.

Oil temp is at 100c and it's flicking between 0.7 and 0.8 l/h. Settled at 0.7 now.

I would take that as confirmation that something is definitely wrong. About 30% over what I would expect and in line with your poor returns.

Would be nice if another vrS diesel driver who is happy with their consumption could report what they get though.

I think the dsg gearbox in the diesel must be a big factor, ive checked my long term computer on the car and over my last 2000 miles i have averaged 48mpg. This is a manual estate, not many short journeys mostly 13 mile trips to work not in rush hour traffic

Not relevant really. The dsg box is very efficient and not like the torque converters of old.

The consumption shortfall is far greater than can be accounted by the dsg / manual argument.

Sorry for the double post.

Edited 16 November, 201510 yr by Rodge

Look I know you guys in the UK are proud of your 'imperial' heritage and insist in running in mpg mode but if you change it to l/100 for a while then it will indicate consumption during stationary tickover in litres per hour.

There's no reason why it shouldn't be able to display either hours per gallon or gallons per hour while stationary. It would be a pretty small software modification.

on my way to work today i switched the consumption from l/100km to mpg and attached photos are a couple of the readings at different speeds, these were on flat roads and no wind.

 

my average is around the 48mpg when factored in all the stop start driving and traffic holdups on my way home each night. I don't try to hyper mile or drive like "driving miss Daisy" just normal driving with the stop start function turned off, AC on when needed.

 

and yes this is a VRS TDI Wagon (Estate) MY 15.5 WITH 10K(ish) km.

 

for me to get an average in the 30's i would have to be doing the traffic light grand prix all of the time.

There's no reason why it shouldn't be able to display either hours per gallon or gallons per hour while stationary. It would be a pretty small software modification.

Wrong topic, post it in the "Things that annoy you" .

on my way to work today i switched the consumption from l/100km to mpg and attached photos are a couple of the readings at different speeds, these were on flat roads and no wind.

 

my average is around the 48mpg when factored in all the stop start driving and traffic holdups on my way home each night. I don't try to hyper mile or drive like "driving miss Daisy" just normal driving with the stop start function turned off, AC on when needed.

 

and yes this is a VRS TDI Wagon (Estate) MY 15.5 WITH 10K(ish) km.

 

for me to get an average in the 30's i would have to be doing the traffic light grand prix all of the time.

Actually at this point it would be more useful if you switched it back to l/100, turned off the aircon and told us what the l/hour stationary tickover consumption is so the OP has a confirmed point of comparison.

 

Personally I am quite happy with running in l/100 mode because you get more detail, especially when being really economical. The MPG display stops at 99mpg whereas the l/kph version will go well below 2.8 l/100 (the equivalent of 100 mpg) eg 1.4 l/100 is 200 mpg. Anyway Australia is pretty well fully converted to the metric system so l/100 is more suited here.

Edited 16 November, 201510 yr by Gerrycan

Stationary tick over without anything on is 0.5 - 0.6 l/hr (engine fully warmed up and battery fully charged)

@90kph consumption sits between 4.3 - 4.6 l/100

@110kph consumption sits between 4.6 - 5.0 l/100

 

When the DPF regen occurs the consumption goes to around 6 l/100 and I can hear a change in the engine note

 

 

Actually at this point it would be more useful if you switched it back to l/100, turned off the aircon and told us what the l/hour stationary tickover consumption is so the OP has a confirmed point of comparison.

 

Personally I am quite happy with running in l/100 mode because you get more detail, especially when being really economical. The MPG display stops at 99mpg whereas the l/kph version will go well below 2.8 l/100 (the equivalent of 100 mpg) eg 1.4 l/100 is 200 mpg. Anyway Australia is pretty well fully converted to the metric system so l/100 is more suited here.

On mine the readout stops at 300mpg  ( I normally run in l/100km but thought i would as a comparison to all the UK posts using MPG)

 

All the above was with the AC off, no lights or other accessories on, windows closed and tyres at 38psi.

 

All Aussie spec'd VRS TDI come with the DSG (no manual option)

 

 

Stationary tick over without anything on is 0.5 - 0.6 l/hr (engine fully warmed up and battery fully charged)

@90kph consumption sits between 4.3 - 4.6 l/100

@110kph consumption sits between 4.6 - 5.0 l/100

 

When the DPF regen occurs the consumption goes to around 6 l/100 and I can hear a change in the engine note

 

 

On mine the readout stops at 300mpg  ( I normally run in l/100km but thought i would as a comparison to all the UK posts using MPG)

 

All the above was with the AC off, no lights or other accessories on, windows closed and tyres at 38psi.

 

All Aussie spec'd VRS TDI come with the DSG (no manual option)

 

That is the information we were after many thanks.

Hah I have never run either of my Octavia in mpg mode so did not realise it went to 300 mpg. I drove a borrowed 1.0litre 3 cylinder turbo Focus estate in the UK earlier in the year and that stopped at 99mpg so assumed they all did. My mistake!

Edited 16 November, 201510 yr by Gerrycan

Okay, I tested what this car can do for Greenpeace, and I got like 61mpg (4.6l/100km) on local roadtrip. But c'mon Guys, it's more like driving a lorry, really. It hurts both me and the car following the green score sh#t and driving in very low rpm... [emoji22]

What I noticed in switching to mpg on head unit is that I was expressing myself here in US instead of UK mpg so there is unreasonable difference in calculation.

So in average I have 41.5mpg (6.8l/100km). Therefore, hitting 40's is no problem with ocassional abuse.

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Edited 21 November, 201510 yr by te@lc

Just coming to the end of the tank and the average is 38mpg.

What's made it seem far worse is i have a mate with a 235 and he gets that with almost twice the power.

I think something is wrong with your car. I have a tuned 2015 TSI and my long term average is 34mpg with mixed city/highway and plenty of fun bursts.

My MPG on my Mk7 GTD has falled through its ass recently....colder weather....constant use of heating and heated seat, mirrors etc and switch to winter grade diesel.

Still getting low 40's without any babying so I cant grumble too hard....before the cold snap it was returning late 40's earlh 50's on a similar run.

Do also bear in mind that the TDI's do need a fair amount of mileage under their belt before they start giving their best....not fans of v short runs from cold either.

I reckon its not until they have 15k miles or so on the clock before they are really broken in. Just the way they are.

I had a GTD with 19k miles which I ran to nearly 25k miles before I got my new one and it was more frugal.....went quite a bit better too in that it was looser and considerably more flexible due to being thoroughly bedded in.

Posted before about my mpg driving around Cambridge roads to and from work (30 miles each way, 50-60mpg average).

This week I've been to Manchester and back (2 x 175 mile trips). Sticking to the speed limits (not 55mph though, 70 most of the way) and with heavy, stop start traffic on both runs in places I averaged 54mpg and 58mpg.

Vrs diesel, 1500 miles on the clock.

What I did notice on this trip; the roads around Cambridge are generally pretty smooth. The A50 around Stoke was a horrible road and the car suspension didn't deal with it that well.

Hard acceleration / late braking seriously impacts mpg. Coast and use engine braking wherever possible if you want good mpg.

The diesel engine really does pull well one those pesky lorries move aside and you get to open the taps.

So then, it turns out it's got a faulty oil pressure sensor. Earlier this week the glow plug light came on.

I wonder if this could be contributing to the poor mpg, the technician who came out agreed the 37.5mpg was poor for my 1200 miles from new.