Hi everyone,

I have an economy "issue", which isn't a problem, more just got me a bit confused!

 

We recently traded our 2013 SE 2.0 TDI 2WD, for a brand new 2017 SE-L 2.0 TDI 2WD. Now, apart from the trim level and cosmetic changes I was under the impression that the engine / gearbox etc were the same?

 

My previous Yeti would average 43 - 45 mpg on my daily commute, and on a steady motorway run it would return around  50 mpg.

Our new Yeti, easily returns 53 - 55 mpg on the commute, and and 60-65 mpg on a motorway - It is out of its first 1000 mile run-in and I'm not driving it any differently to the old car... My commute is 20 minute busy dual carrigeway with 5 minutes town traffic, and not enough for the stop / start to account for the difference (On the morning drive the economy is well over the old car before I hit any traffic anyway)

 

When I received the car I set the tyre pressures to the "Economy" pressures advised inside the fuel flap, but even those aren't massively different to what we had the old car set at.... Has anyone else seen such a difference between similar cars? I'm racking my brain wondering if the old car had 16" tyres with the new one being 17" but for the life of me I can't remember now!

Edited 9 January, 20179 yr by SteveH0773

Are you calculating the mpg manually over a few fill-ups or believing the mpg read-out? The mpg read-out on VAG cars is known to be over-optimistic and to vary from car to car. My car is 5% optimistic and a friend's Eos is 8%.

Are you calculating the mpg manually over a few fill-ups or believing the mpg read-out? The mpg read-out on VAG cars is known to be over-optimistic and to vary from car to car. My car is 5% optimistic and a friend's Eos is 8%.

 

Well mainly from the maxidot display to be honest - Although when I fill up the "Range" display is 75-100 miles more than the old car, and the distance travelled does reflect this before the low fuel light comes on - I always reset the trip meter on refill, and the old car used to get around 525 miles before the low fuel light came on, the new car is 620+.

Does anyone know how the car calculates the range when you fill up, is it recent average, or "All-time average"?

Your new one has an engine that is able to run less compromised by the old crude EGR system of emissions maintenance.

A 2017 version will have SCR (AdBlue) instead which enables it to run at maximum efficiency and then deal with the raised NOx level by the injection of AdBlue.

A system that VW should have employed years ago instead of the EGR plus 'cheat' ; not just cheap n nasty but now the subject of courts in numerous countries (mainly the U.S.).

You now have what Mercedes, BMW and others have had for years

Your new one has an engine that is able to run less compromised by the old crude EGR system of emissions maintenance.

A 2017 version will have SCR (AdBlue) instead which enables it to run at maximum efficiency and then deal with the raised NOx level by the injection of AdBlue.

A system that VW should have employed years ago instead of the EGR plus 'cheat' ; not just cheap n nasty but now the subject of courts in numerous countries (mainly the U.S.).

You now have what Mercedes, BMW and others have had for years

Your new one has an engine that is able to run less compromised by the old crude EGR system of emissions maintenance.

A 2017 version will have SCR (AdBlue) instead which enables it to run at maximum efficiency and then deal with the raised NOx level by the injection of AdBlue.

A system that VW should have employed years ago instead of the EGR plus 'cheat' ; not just cheap n nasty but now the subject of courts in numerous countries (mainly the U.S.).

You now have what Mercedes, BMW and others have had for years

Thanks for the info Ryeman!

It does indeed have AdBlue - I hadn't thought of that, but it makes sense!

Its a good "problem" to have as we're a high mileage family so this extra economy will save me in the region of a tank a month, or £50 - £60! Our previous Yeti served us faithfully and without a single fault for 74000 miles in it's 3 years.

Thanks for the info Ryeman!

It does indeed have AdBlue - I hadn't thought of that, but it makes sense!

Its a good "problem" to have as we're a high mileage family so this extra economy will save me in the region of a tank a month, or £50 - £60! Our previous Yeti served us faithfully and without a single fault for 74000 miles in it's 3 years.

You now have two tanks to keep from running out, which is a minor compromise though and there is plenty of reading on where you can get the fluid at the cheapest price, at least when it's outside the fixed price servicing regime

Are you calculating the mpg manually over a few fill-ups or believing the mpg read-out? The mpg read-out on VAG cars is known to be over-optimistic and to vary from car to car. My car is 5% optimistic and a friend's Eos is 8%.

Many years ago when I was After-sales Manager for a large VAG company we had a customer (American - who taught English - you couldn't make it up)  who had bought a Golf GTI with the then new MFI as it was called then.

 

He complained that the fuel economy read-out was inaccurate. I explained that due to the information gathered and the way that it was it was making an assumption of the notional MPG it was achieving. Not pleased with this the conversation began to deteriorate and in exasperation I likened this new piece of technology to a toy to be played with now and again - but not to be taken seriously.

 

Well, he questioned my qualifications for the job (M.I.M.I., T.Eng. CEI) and I in turn questioned his suitability to teach English as it was obviously not his 1st language (well as an American it wouldn't be would it!). 

 

It is disappointing to find that not a lot has changed despite the phenomenal improvement in computing.

 

Bill  :sun:

With my Peugeot the range, is based on the last 10 minutes of driving history and the fuel it has measured as remaining.

When we arrive home it involves around 10 minutes of gradually slowing down via reduced speed limits with no lights or significant traffic

Reality sets in the next cold start

Thanks for the replies everyone. The car came with 4500 miles of adblue in it so at my kind of mileage that's a refill every 2.5 months but the savings at the diesel pump will more than cover that.

My Range calculations always seem spookily accurate, thas why I wondered if it worked based on all-time average... I reset the trip meter at fill up, and taking into account the 60-70 miles you have remaining when the light comes on, I'm generally within +/- 30 miles of the expected range when I filled up. 

Hi everyone,

I have an economy "issue", which isn't a problem, more just got me a bit confused!

 

We recently traded our 2013 SE 2.0 TDI 2WD, for a brand new 2017 SE-L 2.0 TDI 2WD. Now, apart from the trim level and cosmetic changes I was under the impression that the engine / gearbox etc were the same?

 

My previous Yeti would average 43 - 45 mpg on my daily commute, and on a steady motorway run it would return around  50 mpg.

Our new Yeti, easily returns 53 - 55 mpg on the commute, and and 60-65 mpg on a motorway - It is out of its first 1000 mile run-in and I'm not driving it any differently to the old car... My commute is 20 minute busy dual carrigeway with 5 minutes town traffic, and not enough for the stop / start to account for the difference (On the morning drive the economy is well over the old car before I hit any traffic anyway)

 

When I received the car I set the tyre pressures to the "Economy" pressures advised inside the fuel flap, but even those aren't massively different to what we had the old car set at.... Has anyone else seen such a difference between similar cars? I'm racking my brain wondering if the old car had 16" tyres with the new one being 17" but for the life of me I can't remember now!

 

Can't answer on your 110 engine, but I have found that changing from the 140 4x4 to the new 150 4x4 my fuel consumption has greatly improved. The old one returned the mid to top 40's whereas the new one is regularly showing figures in the low to mid 50's. 

 

Didn't like the "economy" setting, but I do leave mine at the "loaded" setting. It seems to be "twitchy" at the higher setting and a bit "nervy". Not nice.

Does anyone know how the car calculates the range when you fill up, is it recent average, or "All-time average"?

I believe it does it on the last 50 miles average.

I believe it does it on the last 50 miles average.

That certainly makes more sense than doing it on lifetime average.

Our Pugs include 2 trip/economy averages up to 9999kms

Edited 10 January, 20179 yr by Ryeman