Mercedes Diesel software update.

[js190d]

Then scrap your German car and buy a Japanese car in protest.

My moral standpoint is irrelevant.

Simply put these car manufactureers are allowed to pollute for profit. The current trendy environmental shtick for placing the blame on indivduals is laughable.

The 1 billion euro fine the EU gave Mercedes was for services rendered.

 

[Botus]

But people ARE seeing ~10mpg reductions on longer trips. The very fact that you don't think it's feasible reveals your lack of experience in this particular matter. It seems to me, that it is simply your arrogance that leads you to think that your opinion and insight is more valuable than it really is.

I haven't seen anyone confirm the real MPG drops. What I believe I've read is references to MPG from the trip computer. These are often quite inaccurate and we don't have any knowledge of whether or not Mercedes put a new set of calculations in to the update to "improve" the accuracy of the readings for the user.

It also seems early days to make concrete judgement. As I have mentioned:
1) its winter (cold starts, lots of consumer toys in use)
2) adaption reset (and the need for at least 500 miles to settle down)
3) potential changes to trip computer readout
4) potential changes to the start stop
5) potential changes to the power curves (which might mean although you need to burn more fuel to get the same performance at least its emission are less deadly whilst doing so)
6) potential changes to gearbox change points to better look after the engine / keep the emissions on track)
7) potential need for the driver to attune to the way the engine / car now performs
8) and we don't know the state of each specific car's DPF, so we can't really judge how much re gen might be required to get it to perform to the levels the legal emission standards need it to operate at.

when we have cars post update with a 1000 miles up. like for like conditions and its just had a service, it would be very interesting to hear from drivers who have frequently measured their real MPG, and can share the results pre and post update (based over a few months of similar driving conditions).

At the weekend I just got 32.3 mpg out of my car (over a 60 mile trip). I've had it 5 years and have been getting worried somethings wrong as of late I've struggled to get over 24 mpg on similar trips. For the first 4 years the best I'd ever seen was 27mpg. Traffic, atmospheric's and a strange world impact what we see every journey.

 

[js190d]

At the weekend I just got 32.3 mpg out of my car (over a 60 mile trip). I've had it 5 years and have been getting worried somethings wrong as of late I've struggled to get over 24 mpg on similar trips. For the first 4 years the best I'd ever seen was 27mpg. Traffic, atmospheric's and a strange world impact what we see every journey.

Those long term mpg figures really are terrible Botus. Is'nt it about time you take a bit of social responsibility and get yourself a car that does not burn through so much fossil fuel. It is not a renewable energy source.

 

[V6Matty]

Those long term mpg figures really are terrible Botus. Is'nt it about time you take a bit of social responsibility and get yourself a car that does not burn through so much fossil fuel. It is not a renewable energy source.

I’ve had those sort of figures from my Diesel at times,

 

[js190d]

I’ve had those sort of figures from my Diesel at times,

What was causing that? Fuel leak or a mercedes software update?

Recently got my best ever mpg with a Skoda diesel hire car. Trip computer said i got 74mpg average over 750 miles, all on motorways. Astonishing.

 

[LostKiwi]

Those long term mpg figures really are terrible Botus. Is'nt it about time you take a bit of social responsibility and get yourself a car that does not burn through so much fossil fuel. It is not a renewable energy source.

Raises an interesting question:
Is it better to burn through resources quicker or fill the atmosphere with toxins for longer?

 

[LostKiwi]

What was causing that? Fuel leak or a mercedes software update?

Recently got my best ever mpg with a Skoda diesel hire car. Trip computer said i got 74mpg average over 750 miles, all on motorways. Astonishing.

It's a VAG product. It will have lied.

 

[V6Matty]

What was causing that? Fuel leak or a mercedes software update?

Recently got my best ever mpg with a Skoda diesel hire car. Trip computer said i got 74mpg average over 750 miles, all on motorways. Astonishing.

Nothing other than driving it in cold weather and traffic being very poor

 

[Botus]

I’ve had those sort of figures from my Diesel at times,

my 335d did 26mpg ave and 31 on a run driving gently (post software update - it was 3mpg less beforehand)
my father's e280cdi does 27mpg ave and 38 on a run if lucky

we should remember its the content of the emissions that matters...

 

[V6Matty]

I can get over 50 when I drive sensibly, all relative in my mind,

 

[Gazwould]

Nice to see 50 this milder morning .

 

[John Laidlaw]

104 today.....Don’t start!

 

[davidsl500]

104 today.....Don’t start!

Is that your age?

 

[John Laidlaw]

Is that your age?

Feels like it some days.....

 

[Steve Taxi]

2014 S350, a 400 mile mainly motorway run yesterday, it managed 40mpg after 70 miles and 41mpg average at the end of the day,
as for the gear changes these are different to pre update, 7g box, it holds 6 when on an incline at 70mph but changes to 7 when it levels out, when I first got the car back it was running in lower gears all the time and assumed the gearbox adaptations had been reset as the dash readouts had all been reset, the gear changes have now improved after 3k miles of my use, looks like i've got to live with the increase in fuel consumption for now as customer services have been no help at all, bit like the police investigating the police

 

[Botus]

2014 S350, a 400 mile mainly motorway run yesterday, it managed 40mpg after 70 miles and 41mpg average at the end of the day,
as for the gear changes these are different to pre update, 7g box, it holds 6 when on an incline at 70mph but changes to 7 when it levels out, when I first got the car back it was running in lower gears all the time and assumed the gearbox adaptations had been reset as the dash readouts had all been reset, the gear changes have now improved after 3k miles of my use

from the trip computer?
how much has your range dropped for the same quantity of fuel put in the tank?

 

[Steve Taxi]

Before the update i think it used to be 660 miles on the trip, now it's 560 when I fill the tank, I assume this number is calculated from the average mpg

 

[Rozgi]

Following this one with interest too.

Have recently purchased a V 220d.
I tried some things on our last journey, once all warmed up and it will sit in 9th gear with cc on at and above 65 mph.

The revs are at 1100 and a bit at 70 and over a distance of 3300 miles it averages 34 mpg.

Not been back to MB, no recall and not due a service for 16 months / 18k and possibly never likely to depending on circumstances.

Should have bought a 250 and had it remapped but..... good ole hindsight.


Sent from my iPad using Tapatalk

The difference between gear 8 and 9 is exactly 19% in rev. So the rev is going to be 1300 instead of 1100. So the gearbox remap itself does not explain any significant change in consumption. On the other hand, proper handling of NOx indeed may require more fuel.
Taking a look at the original spec of any car: real world MPG is a good 30-40 per cent higher. NOx emission is higher by a crazy 200-500%. As NOx is a million times more harmful than CO2 it may not be a bad idea to increase the CO2 by 2-4% in order to get a 30-60% cut of the NOx.
AdBlue is the cheapest additive you can imagine. (Urine + water. A litre may cost 10-20 p.) Does it make any difference if it is to be refilled every 4 or 8 months?

 

[js190d]

The difference between gear 8 and 9 is exactly 19% in rev. So the rev is going to be 1300 instead of 1100. So the gearbox remap itself does not explain any significant change in consumption. On the other hand, proper handling of NOx indeed may require more fuel.
Taking a look at the original spec of any car: real world MPG is a good 30-40 per cent higher. NOx emission is higher by a crazy 200-500%. As NOx is a million times more harmful than CO2 it may not be a bad idea to increase the CO2 by 2-4% in order to get a 30-60% cut of the NOx.
AdBlue is the cheapest additive you can imagine. (Urine + water. A litre may cost 10-20 p.) Does it make any difference if it is to be refilled every 4 or 8 months?

This is a good summary of the huge changes this update does to an effected car.

Makes it a very different car to the one someone paid a lot of money for while being told of all the benefits of it by Swiss Tony in a stylish mercedes dealer showroom.

Trade descriptions act ? or in USA Lemon law.

 

[Botus]

no makes it the very same car, now doing what it was supposed to do and thus was only capable of - when not running an illegal map

if everyone believed the marketing team's and the rubbish from the media and our governments just think what a disaster we'd all be in - opps !!! forgot nearly everyone except Greta are on that page