I have not hit over 20mpg in my new (2003) E320 CDi yet..

[talltimtam]

Are you going up hill or pulling a caravan to get these fuel results ?

Joking aside I find my mpg goes down from normal when I have the family in the car and the boot full of bags and the like.

 

[IanA2]

OT..
Do you find the powered bike of real benefit. I tried one and found it far too heavy so required more additional input than a regular lightweight bike.

I don't think I was ever serious about buying one though, just like to know whats around, although I did seriously consider an electric scooter, they have terrific torque.

Agreed many are very heavy which is why I went for the Giant Lafree, the lightest of the lot. You can actually use it without the power. Still heavier than my trusty old Claud Butler though.

 

[IanA2]

Yes, well, if I had a fleet of 5/6 litre V8s I might leave them at home more readily, too

.

One is a 4 litre

However, I guess that I get the same sort of consumption when my car is at its least economical as you probably get most of the time.

Not when I'm on my bike you don't

 

[Donza]

Getting back on topic.

I'm taking the car in to Merc Care in Leeds tomorrow to be looked at.

Really nice guys there. They said i could drop in tomorrow and they will run a diagnostic on the car.

Could be one of two things i was told. The Air flow sensor or the air filter.

 

[Dieselman]

or sticky EGR valve, or been remapped, possibly badly.

MAF would be first hit.

 

[Donza]

or sticky EGR valve, or been remapped, possibly badly.

MAF would be first hit.

Remap? I have thought of this...

The car had been at winchestercars in Leeds.

They deal with very high performance cars etc. So i dont know...

Maybe its nothing.

Once again i was told by a fully qualified Mercedes technician that a remap can not be tracked yesterday. So how can they found out whether its been remapped?

 

[Dieselman]

If you think it may have been mapped get the version read and flashed to the correct one. It may well fix your issue.
Another member had a similar issue and it was the map being written wrong and causing over-fuelling at low revs.

 

[Benzowner]

I do 6 mile per day to work and 6 home. On a good run I get 27mpg on a bad run 16mpg and that is a 3.2 petrol. I also get 32+ per gallon on motorways. It sound as if there is something wrong there somewhere.

 

[Donza]

Update..

Took the car for a proper drive after work.

Got up to around 28MPG in city driving. On wellying it, it never went below 23MPG.

What i did was reset the after start interface and just drove from there.

 

[timskemp]

Took the car for a proper drive after work.

Got up to around 28MPG in city driving. On wellying it, it never went below 23MPG.

What i did was reset the after start interface and just drove from there.

Are you idling a lot after startup?

 

[Donza]

Are you idling a lot after startup?

Nope. Just turn key and off i go.

Although there are a LOT of traffic lights in Leeds/Bradford!

PS: Can anyone advise on a tyre pressure for running the 19"s on? I am currently on 34PSi..

I just dont think this may be enough.

 

[whitenemesis]

A contentious issue...

I would advise sticking within the manufacturer's range as shown on the door shut / fuel flap / handbook.

Try adjusting within that recommended range for the best compromise between ride / handling / wear. or bias it toward your preference

 

[Dieselman]

Try drawing a chalk or wax crayon cross across the tyre tread and see where it wears off first.
If it's the edges then they are under-inflated, if it's the centres then they are over-inflated.

 

[whitenemesis]

Try drawing a chalk or wax crayon cross across the tyre tread and see where it wears off first.
If it's the edges then they are under-inflated, if it's the centres then they are over-inflated.

Does that really work? I mean, yes for wear but what about ride and handling?

The tyre is very dynamic when being driven, surely its got to be judged over a reasonable time and distance?

 

[Dieselman]

Does that really work? I mean, yes for wear but what about ride and handling?

I don't think the line makes any difference to the handling....

The line just indicates whether the pressures are correct for wear, ride and handling may be a trade off.

 

[tali]

My MPG figures on 8 cars over the last 16 years since i started driving MUST be the most horrific in the UK , if not the world - i kid you not - never found a solution

 

[splang]

you buy a nearly new merc... and it doesnt have the handbook?

Now I know you are a timewaster

In defence of the OP it is a 5 yr old merc. Please, if you have nothing constructive to add then say nothing. Unusual for me to be negative in a thread but really getting fed up with the little digs on what was a legitimate question by the OP - checked your posts Sweeney and you seem to be getting a habit going....hope I'm wrong.

 

[hawk20]

I had an E270cdi. Great car. I found 30-32 psi all round suited most conditions with just one or two of us on board. Fully loaded with people and gear it needs more.

 

[hawk20]

My mother used to say 'if you can't think of anything pleasant to say; say nothing'.

Surprising how often that is good advice.

 

[ckember]

Donza, congrates on finally getting a car you are happy with.

my 57 plate 320CDI is giving around 27mpg average over the 10K since new. I get from 20-25 int own driving(London) and up to 41mpg on the motorway at a steady 80mph. this has improved recently as the engine starts to loosen up.

which 19inch wheels do you have, are they OEM I cant tell from your pic?