MK5 Golf GTI
All Things Mk5 => Mk5 General Area => Topic started by: nik nak on December 18, 2014, 10:26:19 pm
-
Hi i have had my Gti Dsg for few months and has 101k on the clock but im struggling to get good mpg from it it struggles to get to 25mpg and thats taking it easy!,
I have removed the pre Cat
I have changed the Dv for a G version as my original one was torn
Changed the pcv for N version
Changed Fuel filter
Cleaned the Maf sensor , Intake temp and Map sensor.
Checked spark plugs and Air filter.
Swaped N80 valve for a Known working one.
Swaped before Cat lambda sensor for a Known working one.
There are no codes in Vcds
Im a bit stumped any help apreciated Thanks :happy2:
-
few diesels for sale mate.
always find these MPG threads funny. :ashamed:
-
lol Looking at other 2.0 tfsi owners they are getting 30-40 mpg out of the 2.0 tfsi which makes me think mine is no where near?
-
What grade petrol are you using?
Check tyre pressures too?
-
I have been using tesco 99 and i did check the tyre pressures were ok.
-
25 mpg seem's about right at this time of the year when it's quite cold,I get around 20mpg but I am in a DSG MK6 R!Only seen 30mpg+ in the summer.
-
It does not really reach 25mpg unless i drive really carefully , i am getting about 280miles to a full tank.
-
25 mpg seem's about right at this time of the year when it's quite cold,I get around 20mpg but I am in a DSG MK6 R!Only seen 30mpg+ in the summer.
Best I got on my R is 30mpg during this time of year...
-
To be fair mate 280 miles from a tank isn't that far off really! Best im seeing is 310-320 miles to a tank on a 51 litre fill up which is working out at about 28.5mpg average and yours works out at 24.5mpg
I do alot of short journeys so all my fuel gets burned away on the warm up process for a 6 mile journey to work etc although if i do a bit of a run and set cruise to 65mph can achieve 42mpg (standard 2007 Gti 69k miles)
Do also remember that Dsg is apparently a little worse on fuel compared to my manual according to factory figures!
Im lucky enough to have best of both worlds as the wife gas a 2008 Gt tdi 140 which returns around 550 miles on a tank :laugh:
Mine is for pleasure hers is the mile eater
As good as the Gt is she still much prefers the Gti to drive, so smooth in comparison and heaters dont take an age to get warm like they do in the diesel
What made you change the maf as they very rarely go wrong on the Gti and not a cheap item to replace for a genuine Vw item?
-
My average ATM is about 22mpg and in the summer its about 25mpg. Fuel prices are plummeting now so it's not something to worry about tbh. I thought mine maybe had an issue because of the mpg but then I remembered its a performance car and you've got to feed the ponies :laugh:
-
Are we talking 280miles of motorway bashing or city "stop start""
On a run up the m'way you should be able to get 30 easy enough sat at 70-80.
-
^^^ Exactly. 30-35mpg on the motorway is what I get.
I'd say yours has a problem. Do you keep the boot full of stuff?
-
Brakes sticking slightly ON can make a big difference to mpg - including the hand brake.
A clue can be the wheel with most brake dust on it.
Also will the car easily roll down even the slightest slope ?
-
Sounds normal for a city run.
On the motorway around 30 is what I get.
-
Sorry folks, I hate it when people do this, but I get 35mpg every day on my commute (A road country lanes, not motorway) and on a sensible 20 mile run this week, got the right side of 40mpg. Best EVER way nearly 50 on a very long run at 60mph.... If you're not seeing at least 30mpg, something is wrong....
-
I'd be happy with 25mpg if it is round town.
My long term average over the last 25,000 is 29.3mpg, if i look at the figures for a period of town driving then its only just 24mpg.
-
Traffic and stop start journeys / short journeys make a huge difference to consumption.
I travel the same 12 mile route several times a week. A / B roads but with a town with lots of junctions and traffic lights.
Last week, at rush hour, with a cold start I got 22.7mpg.
Late at night, no traffic and the lights were with me, barely slowed down, but normal road speeds, I got 34.9mpg.
This is not a scientific test but more or less repeatable most days for me.
Cold starts, heated rear windows, heated seats, headlights, blowers etc etc all add to the load on the engine and fuel consumption suffers.
An easy 100 mile motorway drive a couple of weeks ago , in the day, saw 39mpg.....
-
Its a Gti just enjoy it and accept that its not a eco machine
If its economy on the top of your list then im affraid you have bought the wrong car :laugh:
Unless it drops drastically which could indicate a problem I wouldn't worry about it although saying all this my fuel light came on today at just short of 330 miles from a tank which I honestly dont think is bad at all for short journey stop start (occasional enthusiastic) driving!
Never tried it but I rekon 400 miles could be achieved from a tank on decent motorway run
Think the Gti is bad I only used to get about 300 miles to a tank on a motorway run in my previous mk1 focus Rs :surprised:
-
The mpg really depends on the type of driving you're doing. I used to comfortably get into the 30s on longer journeys and could even touch 40mpg on the motorway. However around town I rarely got higher than 25mpg. Will be worse this time of year.
-
Thanks for replys , the Mpg is around town i just got back after doing town driving and it showed about 19.6mpg and that was not blasting it just driving smooth. there was a traffic so lot of stopping etc.
-
Never tried it but I rekon 400 miles could be achieved from a tank on decent motorway run
Think the Gti is bad I only used to get about 300 miles to a tank on a motorway run in my previous mk1 focus Rs :surprised:
400 is very achievable on just my regular commute. Cruise certainly helps, as does just sticking to the speed limit, but where's the fun in that :driver:
-
Have you tried anything like BG44K treatment in a full tank of fuel. Seems to be marmite reponse but this and the diesel version in my old TDIs worked very well.
My 2007 plate DSG GTI with 56k on the clock is getting max 32mpg and average 25mpg . Also run 17 inch alloys, i presume those on 18s will be getting worse. Also could your DSG be loosing you MPG through some sort of tramission loss maybe get a calibration reset done.
-
I have looked into getting this treatment into my car will give it a go , im alco looking at taking off the inlet manifold and giving the ports a clean.
-
Have you tried anything like BG44K treatment in a full tank of fuel. Seems to be marmite reponse but this and the diesel version in my old TDIs worked very well.
My 2007 plate DSG GTI with 56k on the clock is getting max 32mpg and average 25mpg . Also run 17 inch alloys, i presume those on 18s will be getting worse. Also could your DSG be loosing you MPG through some sort of tramission loss maybe get a calibration reset done.
BG44k is pretty good stuff.
I've given mine 2 treatments (before an oil change) and it's sorted my cold start roughness.