BMW "eco pro mode scam"

BMW "eco pro mode scam"

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Discussion

Mirinjawbro

Original Poster:

719 posts

67 months

Thursday 13th June
quotequote all
Hello gang

just hit 25k miles on a 640d.

per fill up i have always seen 500/550 miles using 90% eco pro and probably 70% motorway.

for whatever reason the last fill up i have decided to test never using eco pro and comfort only

600 miles on the first try. same driving. nothing new.

why and how ?

Glenn63

2,940 posts

87 months

Thursday 13th June
quotequote all
Eco pro just alters the throttle peddle mapping. Doesn’t effect amounts of fuel injected or cylinder deactivation etc. So once at motorway speed it’s using same fuel in any mode. Unless say sport mode is using a lower gear for instance.

Krikkit

26,753 posts

184 months

Thursday 13th June
quotequote all
In Eco Pro it backs the regen down to focus on more coasting - you have to drive to this style and leave massive gaps to allow for as much coasting as you can, followed by gentle regen.

In Comfort the regen is engaged much more quickly, so in normal traffic it's more aggressively using regen, hence a possibly slight uptick in economy.

IanJ9375

1,495 posts

219 months

Thursday 13th June
quotequote all
Also doesn't EcoPro run the AC with less vigour etc?

Maxus

970 posts

184 months

Thursday 13th June
quotequote all
More than just throttle calibration. It also reduces power of the A/C (which can allow stop/start to be operative for longer) and allows the car to coast when off throttle or brakes.

Switch between comfort and Eco Pro whilst rolling down a hill - it's like a brake has been released. This is only when it isn't charging the battery. You can see this on the dash graphic. A tap of the accelerator will often switch it from charge to coast when in Eco Pro.

Over 60k miles i've averaged 45 MPG in my 640d. I stay in comfort 99% of the time but there are a couple of long hills followed by flat near me where I switch into Eco Pro to try and roll to a roundabout about 2 miles away. Just about possible with no traffic. Good game smile

ETA - I get about 650 miles a tank.

Mirinjawbro

Original Poster:

719 posts

67 months

Thursday 13th June
quotequote all
Maxus said:
More than just throttle calibration. It also reduces power of the A/C (which can allow stop/start to be operative for longer) and allows the car to coast when off throttle or brakes.

Switch between comfort and Eco Pro whilst rolling down a hill - it's like a brake has been released. This is only when it isn't charging the battery. You can see this on the dash graphic. A tap of the accelerator will often switch it from charge to coast when in Eco Pro.

Over 60k miles i've averaged 45 MPG in my 640d. I stay in comfort 99% of the time but there are a couple of long hills followed by flat near me where I switch into Eco Pro to try and roll to a roundabout about 2 miles away. Just about possible with no traffic. Good game smile

ETA - I get about 650 miles a tank.
what percent is motorway?

is it mapped?

Maxus

970 posts

184 months

Thursday 13th June
quotequote all
Mirinjawbro said:
Maxus said:
More than just throttle calibration. It also reduces power of the A/C (which can allow stop/start to be operative for longer) and allows the car to coast when off throttle or brakes.

Switch between comfort and Eco Pro whilst rolling down a hill - it's like a brake has been released. This is only when it isn't charging the battery. You can see this on the dash graphic. A tap of the accelerator will often switch it from charge to coast when in Eco Pro.

Over 60k miles i've averaged 45 MPG in my 640d. I stay in comfort 99% of the time but there are a couple of long hills followed by flat near me where I switch into Eco Pro to try and roll to a roundabout about 2 miles away. Just about possible with no traffic. Good game smile

ETA - I get about 650 miles a tank.
what percent is motorway?

is it mapped?
Maybe 60% motorway, the remainder mostly A roads. I don't spend much time in urban areas which is what kills the economy of these cars.

Car is standard.

Collectingbrass

2,280 posts

198 months

Thursday 13th June
quotequote all
IanJ9375 said:
Also doesn't EcoPro run the AC with less vigour etc?
In my F32 it shuts off the AC altogether. There's several reasons the upward side of the button is worn out but not the downward side and that's one of them...

Wills2

23,524 posts

178 months

Thursday 13th June
quotequote all

I hate the throttle response in Eco pro mode, so I use comfort+ on long runs and I find the difference negligible between them, in fact it'll do 65mpg in just normal comfort mode whilst cruising.


AmyRichardson

1,262 posts

45 months

Thursday 13th June
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Apparently it runs a variety of ancillaries on a low wick, things like rear-view demist.

But like most others I almost never use it, throttle response is dangerously poor (would love the sport throttle with comfort gears, but that's not available on an oldy like mine.)

Uncle boshy

304 posts

72 months

Saturday 15th June
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Coasting in eco pro makes a big difference , but doesn’t work if you use cruise and does require you to adjust your driving style a bit.

Eg there is a nsl road near me that goes to 50 for half a mile and then 40. Drop the cruise off just before the nsl ends and it will coast easily to the 40

rottenegg

605 posts

66 months

Saturday 15th June
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I've had my 330d for 2 years and never used Eco Slow. It returns decent enough mpg in comfort mode that I've never felt the need to use it. Start/Stop has been disabled for 2 years as well as that is just completely annoying in heavy traffic.

I use XHP for the gearbox which detects slow moving traffic and doesn't drop to 1st, which makes crawling along smoother and more efficient.

Pica-Pica

14,158 posts

87 months

Saturday 15th June
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Eco-pro just mimics how you should be driving if attempting to conserve fuel. On my 335d, Eco pro gave me no significant saving over comfort mode.

VeeTenM

651 posts

117 months

Saturday 15th June
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so what does the blue +xx number mean? what I have "saved" over a tank full of fuel?

PlywoodPascal

4,734 posts

24 months

Saturday 15th June
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It also changes the temperature the engine runs at to minimise frictional losses rather than maximise power.

Pizzaeatingking

514 posts

74 months

Saturday 15th June
quotequote all
Eco pro makes a few tweaks to the car to help boost MPG but if you drive it in the exact same way as you do in comfort then don't expect much in the way of savings. It will help you save fuel but you have to work with it too and adjust your driving style. For example, my old commute I would get low 40s MPG out of my 340i, if I used eco pro and adjusted my driving style to suit I could get over 50mpg. If I just pressed the switch and drove the same it would do bugger all, it's not magic.

leef44

4,623 posts

156 months

Sunday 16th June
quotequote all
Pizzaeatingking said:
Eco pro makes a few tweaks to the car to help boost MPG but if you drive it in the exact same way as you do in comfort then don't expect much in the way of savings. It will help you save fuel but you have to work with it too and adjust your driving style. For example, my old commute I would get low 40s MPG out of my 340i, if I used eco pro and adjusted my driving style to suit I could get over 50mpg. If I just pressed the switch and drove the same it would do bugger all, it's not magic.
Would you save the same fuel if you changed your driving style without pressing eco pro?

LuckyThirteen

533 posts

22 months

Sunday 16th June
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I drive a M140 for work purposes. A lot of urban, dual carriageway etc

Eco pro offer the most benefit when you take time to learn how to have it coast. This though means paying an awful lot of attention to the gradient of the road, leaving large gaps and layering 'im in eco-pro' on top of how diligent you are naturally.

I can eek 29mpg out of the M140 using eco-pro. Circa 25 in comfort.

Forget all the other stuff eco-pro does. It's main benefit is coast.

Yes it saves fuel, BUT like the poster above, I agree the throttle response can be dangerous.

Uncle boshy

304 posts

72 months

Sunday 16th June
quotequote all
leef44 said:
Would you save the same fuel if you changed your driving style without pressing eco pro?
The big benefit is coasting with the auto. You can only do that in eco pro. I reckon it’s worth 5mpg to me.

If you don’t use coasting in eco pro, then very little difference.

Magnum 475

3,588 posts

135 months

Sunday 16th June
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On my F30, it’s almost unusable:

1. The throttle map becomes awful, no response at all

2. It changes up way to early and lugs the engine - it will be in 8th by 50mph, doing about 1,100 rpm. On a petrol engine, this is not good. Then it really doesn’t want to change down for acceleration or getting up hill. You can feel vibration from the engine being under-revved.

And it makes very little difference to fuel burn in most driving.