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View Full Version : MPG on 143hp tdi



SIMONJO65
01-06-2009, 01:40 PM
Anyone with real world MPG figures for the 143hp?

maisbitt
01-06-2009, 01:46 PM
Just got a Scirocco with the 140CR 2.0TDI. I'm still running it in fairly gently, but getting around 50mpg around the doors, or 47 with the aircon on.

Not quite a fair comparison, but your A4 shouldn't weigh too much more than the Scirocco - you should probably aim for around 10% less than i'm getting.

rich164h
01-06-2009, 01:46 PM
Only just passed 1500 miles but I'm averaging 45mpg, and that's with 80 miles of fairly sedate motorway driving every day. I've had up to 52mpg on a good day.

I'm hoping this is just the car still being bedded in and this will increase over the next few thousand miles.

edited to add that this is with the aircon on at all times.

A1287210
01-06-2009, 01:52 PM
Only just passed 1500 miles but I'm averaging 45mpg, and that's with 80 miles of fairly sedate motorway driving every day. I've had up to 52mpg on a good day.

I'm hoping this is just the car still being bedded in and this will increase over the next few thousand miles.

edited to add that this is with the aircon on at all times.

I agree with these figures (coming up to 13,000 miles)

Niko
01-06-2009, 03:59 PM
Hi, I am now at 15K miles and the MPG has not changed that much. My commute to work is identical everyday (26 miles) with a variety of gradient. Wind direction does appear to influence the MPG. Best I have got toward the end of the journey is 58.7, worst is 52. As I have previously tried to reproduce the journey as accurately as possible I can only judge the difference is down to wind direction. I change up when indicated and apply light throttle and easy brakes when I can. Motorway is typically 55 MPG if I cruise around 70 MPH.

I get my speed kicks from my wifes AMG SLK 55 so I can leisure it in the A4 and listen to B&O!! The SLK 55 only needs 1 soundtrack, all 360 horses bellowing loudly!!:Blush:

drmartin
02-06-2009, 07:38 AM
54 on a run, thats at a stready 80mph over 150 miles or so

48 round town

170tdi Avant (none Quattro) running at 220bhp - Air con on perminantly - 17k on the clock

M

AndyH123
02-06-2009, 12:47 PM
I've done a couple of half-hearted experiements with aircon off / on - doesn't seem to make a detectable difference what with all the other variables.

It definately made one hell of a smell when I eventually turned it back on though!


Two things stuff my mpg - speed and lack of it. Sweet spot appears to be around 60ish. And temperature, three things. I'm up to 50 average much quicker now the chilly mornings have gone.


Still haven't quite squeezed 600 miles out of a tank though! 578 is my record so far. I know it's possible, just need the right conditions - including, importantly, knowing for sure I'll be somewhere near a petrol station at the right time.

A1287210
02-06-2009, 01:06 PM
Interesting to know how much someone has managed to eek out of a tank. I know I have managed over 600 but nothing exact. And I remember being nearly empty and driving like a granny, filling it up and the range said 670 miles. Of course when she was full I put my foot down :o

AndyH123
02-06-2009, 01:09 PM
Interesting, mine usually comes in at 630 or 640 predicted when I fill up. It usually still says that after I've done the first 50 or so miles.

Just thought, I tend to cruise a lot out of laziness and camera paranoia, I'm under the impression cruise costs you a bit in mpg?

maisbitt
02-06-2009, 01:13 PM
On hot and sunny days such as these, I have found that it's far better having the aircon on than the windows open at anything over 25mph.

The mpg cost of having the aircon on seems to be much less than the aerodynamic penalty of having the windows open. This is probably only true of very recent VAG cars, the newer AC systems are a lot more efficient than they used to be.

troc
02-06-2009, 01:13 PM
Yeah, perceived wisdom is that cruise is actually bad for MPG. I suspect that it'd be a moot point on a long, straight, flat, empty road but on a hilly road populated by other vehicles it has a habit of playing with the throttle rather too much (and violently) to be good for economy.

richard100
02-06-2009, 07:47 PM
I'm getting somewhat worse than what's been quoted. Over 1500 miles of mixed town and motorway driving (longish drives) I was only getting 41mpg according to the computer, but actually it was only 38mpg when I worked it out myself. The car's still pretty new, but I'm not happy with the figures - do they sound right?

martin@wolfy
05-06-2009, 12:23 PM
I am getting around 54mpg on average when i am commuting which is around 22 miles around 18 of which are on major A road and the rest town.

I get around 42 when just pottering around town. I have now done 6500 miles and the trip2 recorder is showing 47mpg since day 1.

wolfy!!!!

rich164h
05-06-2009, 01:19 PM
I've never even seen 54mpg on the computer for a single trip, let alone average that. :(

They best I've managed for a single trip is 52mpg I think and that was over 40 miles of motorway with only me in the car (and no luggage) and doing no more than about 60mph at any point.

I really do hope the car will loosen up a bit more and yield a bit more economy otherwise I might as well have gone for the petrol instead.

richard100
05-06-2009, 04:39 PM
I'm with you on this Rich. I'm not happy with the economy (see my post earlier). Is there anything special that the rest of you are doing?

Jop
05-06-2009, 06:37 PM
I'm getting somewhat worse than what's been quoted. Over 1500 miles of mixed town and motorway driving (longish drives) I was only getting 41mpg according to the computer, but actually it was only 38mpg when I worked it out myself. The car's still pretty new, but I'm not happy with the figures - do they sound right?
That doesnt sound very diesel like.
I get that (37-40mpg) when driving conservatively with my 2.0TFSI PETROL

A1287210
06-06-2009, 09:56 PM
Maybe it has something to to with the way people run in the cars...I know people have pointed out that the cars get thrashed for a couple of miles by the yobs moving the cars around storage depots but I know that I still drove the car like it was made of glass for about 1500 miles.

Just drove today Great Yarmouth back to Chesterfield (164 miles) in 3 hours and 5 mins it sounds along time but there are no motorways and lots of tractors. I managed 51 mpg.......a record time with a record mpg.

AndyH123
08-06-2009, 08:44 AM
I'm with you on this Rich. I'm not happy with the economy (see my post earlier). Is there anything special that the rest of you are doing?

I'll try and summarise my style if it helps compare things. I'm aggressive, but not daft and generally try to be smooth. If I'm feeling a bit racey and there's no traffic I tend to brake late and hard, otherwise I try and natrually slow down as much as possible.

I'm out of first gear before I've even gone anywhere. Then assuming nice flat roads, roughly:
2nd gear up to 17mph
3rd gear up to 20 mph
4th gear up to 28mph
5th gear up to 37mph
6th gear after that

I'm trying very hard to get out of the habit of turbo'ing through 2nd and 3rd, but its fun (this is my first diesel).

maisbitt
08-06-2009, 08:49 AM
I've tried running in new cars a few different ways with VAG TDI's.

1. From picking up at the dealership, did a 700mile round trip to see relatives down south. This put a lot of miles on early on, gently run in with a pretty much constant 75mph/2100rpm in 6th throughout. The economy from then on in the car was spot on with combined figures, although the oil consumption was high - around 0.5L/1000 miles.

2. Gentle-ish run in with varied trip lengths, trying not to do more than 3000rpm (the occasional creep up just beyond this) in any gear until the car had done 700 miles,and then not really burying the pedal until it had done well over 1000 miles. This method (on 3 cars) has got me around 90% of combined figures on average, with no oil consumption between services (not enough to need a top up).

The biggest economy factor is driving style. I'm no slouch, but I get good economy by planning ahead.

When i'm doing 75-80mph on a dual carriageway, I don't go hurtling towards roundabouts and then slam the brakes on, my foot is off the gas long enough to have drifted down to 40mph by the time I need to brake.

If I see the gap starting to close between me and the car in front, I decelerate earlier than I would have otherwise braked. Likewise if I see a situation a few cars in front of me that will cause them all to brake/decelerate.

I'm sure a lot of the people on here with good economy do this kind of proactive driving. Some people will cane their car with hard acceleration and hard braking at all times, but with that kind of driving, a TDI driver will be lucky to average 40mpg.

With good planning, you don't need to drive like an old lady to get near the combined figures on a TDI (seems much harder to achieve with a VAG TSI/TFSI engine though).

maisbitt
09-06-2009, 09:37 AM
Myself and a few others seem to get around a 10% difference between displayed and actual mpg.

I reset my trip 2 on the computer to Zero when I fill up from around 1/3 of a tank to full and then when I fill to full again, I check the recorded trip 2 reading and then reset it for the next fill.

I have only emptied my new Scirocco once, but here are my first readings.

Over 379 miles, trip 2 recorded 48.9mpg average.

The fill was 39.18 Litres = 8.63 Gallons.

379miles/8.63 Gallons = 43.9mpg actual

(48.9mpg/43.9mpg x 100) = trip 2 indicated mpg is +11% over actual.

So do VW deliberately calibrate their equipment to indicate mpg to be far better than it actually is?

If there was 1 or 2 % in it then I could assume that the computer works everything out in metric units, and then converts to mpg. The 1 or 2 % difference could be attributed to rounding errors in the conversion process, but not 11%.

I have double checked my highline computer settings, and I am definitely set to imperial mpg and not US mpg for the displayed readings.

So that is my first set of fill info - my mpg may improve as the car wears in but I still think the gap between indicated and actual mpg will remain.

Foaming in the tank could play a part if you chop and change your fuel provider, giving false full tank fills. Time will tell if any foaming in this instance has had an effect, I generally go to one of 2 different Sell garages, so I should be able to treat them as the same.

richard100
09-06-2009, 06:15 PM
I agree with maisbitt. Over 1500 miles, so a few tank fills, my MPG was over-reading by about 8%. Seems like a con to me!

maisbitt
10-06-2009, 08:49 AM
I will monitor the situation for my first 10 fills, keep all the receipts and then challenge VW if there is a consistent 8-12% between indicated mpg and actual.

It does seem to be a con. If this is happening to everyone then it would indicate that my issue isn't isolated.

Similar things have happened with other makes - anyone remember Peugeot being on watchdog a few years ago because the digital mileometers were about 40% out? People were doing trips that they knew were say 10 miles, but the mileometer was reading 14.

If the 10% indicated/actual is happening across a few generations of cars then it will appear that VAG have been doing this for a very long time.

drmartin
12-06-2009, 07:58 AM
I'll try and summarise my style if it helps compare things. I'm aggressive, but not daft and generally try to be smooth. If I'm feeling a bit racey and there's no traffic I tend to brake late and hard, otherwise I try and natrually slow down as much as possible.

I'm out of first gear before I've even gone anywhere. Then assuming nice flat roads, roughly:
2nd gear up to 17mph
3rd gear up to 20 mph
4th gear up to 28mph
5th gear up to 37mph
6th gear after that

I'm trying very hard to get out of the habit of turbo'ing through 2nd and 3rd, but its fun (this is my first diesel).

This style of driving maybe your problem! your killing the exhaust partial filter.

I try to keep the engine above 1800 rpm all the time and let it rev freely, been doing that since day one and I now get 53-55 mpg without trying. (measured at the tank) Also, now and again, caine it and hard!

TDI 170(tuned to 220) 18k on the clock

M

rich164h
12-06-2009, 08:22 AM
Does the 143ps version have a DPF? For some reason I thought only the 170 and above had them.

maisbitt
12-06-2009, 09:51 AM
In 2,0TDI only the 170 had DPF in the PD (Pumpe Duse) versions, but in CR (Common Rail) versions, both the 143 and the 170 have a DPF

rich164h
12-06-2009, 10:22 AM
In 2,0TDI only the 170 had DPF in the PD (Pumpe Duse) versions, but in CR (Common Rail) versions, both the 143 and the 170 have a DPF:biggthump

drmartin
12-06-2009, 01:32 PM
In 2,0TDI only the 170 had DPF in the PD (Pumpe Duse) versions, but in CR (Common Rail) versions, both the 143 and the 170 have a DPF

That will be the 120 version also...

jonathon555
12-06-2009, 04:44 PM
first 500 miles completed in last 36 hours 47 mpg

143 tdi

Cocteau
20-06-2009, 09:21 PM
I'm with you on this Rich. I'm not happy with the economy (see my post earlier). Is there anything special that the rest of you are doing?
52 mpg is not so bad, but is very boring :beerchug:
I believe that you can achieve 54 mpg by new tires 205 if you are currently on 225 or more.

richard100
21-06-2009, 09:21 AM
52 mpg is not so bad, but is very boring :beerchug:
I believe that you can achieve 54 mpg by new tires 205 if you are currently on 225 or more.

Maybe Cocteau, but I'm not getting close to 52 on mixed driving. More like 38-40! That includes a mix of town and motorway driving at a good but not exciting pace.

sunil1234
22-06-2009, 04:05 PM
im with you rich, nearly 8k on the clock but max i get on my 20 mile daily commute is is 42-43 mpg!