Very poor mpg at 21.5 mpg - Page 3

iainmd · Dec 20th, 2012, 10:38

Quote:

Originally Posted by ian7675

Just as a comparison, my T5 is averaging between 30 and 35 mpg and the turbo does get worked quite regularly so I'm amazed yours is that low. 21 to 25 mpg is really bad for a diesel car. Sorry for not actually helping you with your problem.

Edit: mine is also gear tronic, it will fractionally reduce your mpg.

Absolutely. My T5 does relatively short journeys, often in traffic, and still gets ~28mpg. There's something seriously wrong with your mpg. Unless you're driving everywhere in queued traffic and hardly ever getting over 30mph something's not right.

The geartronic will always be more thirsty than manual but should be reduced by a single figure precentage not as much as you're seeing.

sprout99 · Dec 20th, 2012, 10:42

as a nation we seem to think low miles is better when buying a car.

I tend to disagree and would rather buy a car thats been looked after but has been driven.

I have a low miles Golf GTi anniversary (PD) which was only driven now and then by the guy i got it off and that further cements my thoughts.

Had loads of daft niggles since i bought it. Was 10 years old and only covered 65k !

also,

My mate has a 520d Tourer which his mrs used for a week to do a 1 miles run to work during the cold spell.

He now has DPF problems and a raised oil level (fuel in oil) as a result

Zeb246 · Dec 20th, 2012, 15:32

I usually take the D5 on long journey's as much as i can. Took it for a test drive today, 25 litres of Shell fuel, and millers additive. MPG went up by 22, that's still pretty bad, no success after all that driving on the motorway today.

I think the engine and turbo hasn't opened up yet, due to low miles. I will need to keep on driving till the turbo and engine open's up, only then the mpg will go up.

Zeb246 · Dec 20th, 2012, 15:34

Parkers have stated I should get 45mpg..
http://www.parkers.co.uk/cars/review...on-2004/43752/

rowdy · Dec 20th, 2012, 17:40

No amount of fuel additive is going to cure your problem.

Is your oil level rising?
Have you checked around the injectors for fuel leak?

Are you going by the trip computer for your mpg figures?
If so it might be an idea to fill the tank and reset your odometer and fill it back up after you have covered 50 miles. Then work out how much this 50 miles has cost you and see how many litres of fuel it has used, then convert it into miles per gallon. Just a thought, but it may even be your info centre reading wrong.

850Chris · Dec 20th, 2012, 17:52

Just a thought but have you considered low consumption could be due to binding brakes?

Do you have any signs of this - discs hot after a run (but without having done hard braking), pulling to one side etc...etc...?

halfamp · Dec 20th, 2012, 18:03

Quote:

Originally Posted by Zeb246

I usually take the D5 on long journey's as much as i can. Took it for a test drive today, 25 litres of Shell fuel, and millers additive. MPG went up by 22, that's still pretty bad, no success after all that driving on the motorway today.

I think the engine and turbo hasn't opened up yet, due to low miles. I will need to keep on driving till the turbo and engine open's up, only then the mpg will go up.

You have serious problem my other car is a petrol 3 litre 3 series and thats doing far more than that, my d5 is getting over 50 mpg on a run, no amount of miles is going to sort that you need to get it looked at, those are dreadfull figures

Zeb246 · Dec 20th, 2012, 18:36

Brake pads, and discs were changed by the previous owner last month. There's no sign of fuel leak, and the oil level is fine. The car has been serviced, oil and oil filter, inc cambelt all done last month.

Don't know if tyres are causing the problem. As the front's are illegal and off the legal limit, also the rear tyres are the wrong size as they should be 225/45/18 not 225/40/18.

Fuel wise, 25 litres which showed 265 miles, after 14.9 miles of driving the tank showed 250 miles of fuel left, mpg showing 22.0 mpg.

Going to change tyres asap!

sprout99 · Dec 20th, 2012, 18:48

You say timing belt just changed?? Your timing may be out

halfamp · Dec 20th, 2012, 18:53

Quote:

Originally Posted by sprout99

You say timing belt just changed?? Your timing may be out

Good point sounds like its previous owner skimped a bit judging by the tyres being illegal and incorrect size could well have had a cheapskate timing belt change

Dec 20th, 2012, 10:42	#22
sprout99 Master Member Last Online: Sep 28th, 2015 03:33 Join Date: Dec 2011 Location: Durham	as a nation we seem to think low miles is better when buying a car. I tend to disagree and would rather buy a car thats been looked after but has been driven. I have a low miles Golf GTi anniversary (PD) which was only driven now and then by the guy i got it off and that further cements my thoughts. Had loads of daft niggles since i bought it. Was 10 years old and only covered 65k ! also, My mate has a 520d Tourer which his mrs used for a week to do a 1 miles run to work during the cold spell. He now has DPF problems and a raised oil level (fuel in oil) as a result __________________ Peugeot 208 GTi Prestige BMW 330d M Sport + Mk2 Golf Gti G60....

Dec 20th, 2012, 15:34	#24
Zeb246 Senior Member Last Online: Jun 9th, 2013 13:19 Join Date: Jul 2012 Location: Bristol	Parkers have stated I should get 45mpg.. http://www.parkers.co.uk/cars/review...on-2004/43752/ Last edited by Zeb246; Dec 20th, 2012 at 15:43.

Dec 20th, 2012, 17:52	#26
850Chris Premier Member Last Online: Aug 16th, 2017 20:12 Join Date: Aug 2006 Location: Fife (Scotland)	Just a thought but have you considered low consumption could be due to binding brakes? Do you have any signs of this - discs hot after a run (but without having done hard braking), pulling to one side etc...etc...? __________________ 2004 V50 T5 SE Manual Now sold, off to BMW land for a while. Last edited by 850Chris; Dec 20th, 2012 at 17:54.

Dec 20th, 2012, 18:48	#29
sprout99 Master Member Last Online: Sep 28th, 2015 03:33 Join Date: Dec 2011 Location: Durham	You say timing belt just changed?? Your timing may be out __________________ Peugeot 208 GTi Prestige BMW 330d M Sport + Mk2 Golf Gti G60....

Dec 20th, 2012, 15:32	#23
Zeb246 Senior Member Last Online: Jun 9th, 2013 13:19 Join Date: Jul 2012 Location: Bristol	I usually take the D5 on long journey's as much as i can. Took it for a test drive today, 25 litres of Shell fuel, and millers additive. MPG went up by 22, that's still pretty bad, no success after all that driving on the motorway today. I think the engine and turbo hasn't opened up yet, due to low miles. I will need to keep on driving till the turbo and engine open's up, only then the mpg will go up.

Dec 20th, 2012, 17:40	#25
rowdy Senior Member Last Online: Jan 10th, 2024 06:10 Join Date: Jan 2010 Location: West Sussex	No amount of fuel additive is going to cure your problem. Is your oil level rising? Have you checked around the injectors for fuel leak? Are you going by the trip computer for your mpg figures? If so it might be an idea to fill the tank and reset your odometer and fill it back up after you have covered 50 miles. Then work out how much this 50 miles has cost you and see how many litres of fuel it has used, then convert it into miles per gallon. Just a thought, but it may even be your info centre reading wrong.

Dec 20th, 2012, 18:36	#28
Zeb246 Senior Member Last Online: Jun 9th, 2013 13:19 Join Date: Jul 2012 Location: Bristol	Brake pads, and discs were changed by the previous owner last month. There's no sign of fuel leak, and the oil level is fine. The car has been serviced, oil and oil filter, inc cambelt all done last month. Don't know if tyres are causing the problem. As the front's are illegal and off the legal limit, also the rear tyres are the wrong size as they should be 225/45/18 not 225/40/18. Fuel wise, 25 litres which showed 265 miles, after 14.9 miles of driving the tank showed 250 miles of fuel left, mpg showing 22.0 mpg. Going to change tyres asap!

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