BMW and M Power Owners
- Thread starter panthro
- Start date
Not on the B58TU1 it isn't.
Hi all.
Got a question for those that who have models that use efficiency dynamics. And do journeys which encounters a lot of random stops, then start few meters and stop.
Has this had any negative effect on the starter motor lifespan or issues with it not engaging properly ? And also does it do what it's supposed to do ? This is what they call a mild hybrid regen?
I know you can turn off auto start stop but I don't think you could turn it off by default (stop having the engine cutout when you stop)?
I thought mild hybrids used the breaking system to regen the battery taking load off the alternator rather than stopping the engine in heavy start stop traffic rather than lights .
Curious to know about the starter motor strain as I had an issue with starter motor not engaging in a model which didn't use this technology.
Got a question for those that who have models that use efficiency dynamics. And do journeys which encounters a lot of random stops, then start few meters and stop.
Has this had any negative effect on the starter motor lifespan or issues with it not engaging properly ? And also does it do what it's supposed to do ? This is what they call a mild hybrid regen?
I know you can turn off auto start stop but I don't think you could turn it off by default (stop having the engine cutout when you stop)?
I thought mild hybrids used the breaking system to regen the battery taking load off the alternator rather than stopping the engine in heavy start stop traffic rather than lights .
Curious to know about the starter motor strain as I had an issue with starter motor not engaging in a model which didn't use this technology.
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Soldato
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BMWs have had efficiency dynamics for years. It doesn’t, by default, mean it’s a mild hybrid.
You can code out stop start by default.
It sounds like you’re talking about the driving mode, rather than the Efficiency Dynamics model variant of some 2010+ BMWs. From memory these were just lower tuned versions of the normal car.
You can code out stop start by default.
It sounds like you’re talking about the driving mode, rather than the Efficiency Dynamics model variant of some 2010+ BMWs. From memory these were just lower tuned versions of the normal car.
Ok so two different things. I think my auto start stop may have been coded out or doesn't work as I have the button and the light on the dash on the 120d e82 but iv never used it, it's always been like that.
Looking on Google the proper mild hybrid then is the 48 volt starter generator mild hybrid system.
For example provides 11 horse power of electric boost whilst accelerating .
What about the actual numbers being advertised. E.g 420i avg 42.2mpg. / 420d 57mpg
I'd like to try petrol if it's going to be better than diesel.. as most of you may know my last 4 cars have been diesel. sometimes reliable, sometimes not. I don't want a gas guzzler through town but I also do dual carrageway and some motorway journeys but if the numbers are not trustworthy and the mpg is actually in the late 30s on the petrol then it may sway me back to diesel.
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Soldato
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I used to get 55 plus in a 320d on a run, and I think you’d have no problem getting 42-45 in a petrol 3/420i on a run, assuming a 2016 ish car onwards.
My 340i manual, which sits at >2.5k revs on motorway will do 36 on a run.
I get about 52-53 realistically at the moment.
It's just weighing up really now if I want to go petrol or diesel, the other thing is if I go for the 4 series or 3 series. a lot of reviews say even though the 4 series is bit more expensive it seems worth it over a 3 series.
Or it could be the other way around and it's not worth getting a 4 series when the 3 series is just as good and costs less.
I was looking at the 420 grand coupe
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Same as the veterinary industry, Or possibly EVERY industry that has a insurance backing.
Our dog needed an MRI. £2500. Theres no way it would have been that much if there was no insurance in the industry. The whole bill came to nearly £5k and he still passed away.
Soldato
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I don’t know what your driving circumstances are, but petrols are quite good for fuel economy these days.
The only challenge for me with a 20i is that it felt less torquey than the diesel I used to own (had a 320i loan car for a week).
I used to average 53 MPG in the 320d and averaged 37 in the 320i with no changes to my driving habits. In fact it was used for longer journeys.
3 vs 4 is a personal choice. I think the 4 M Sport comes with the pro nav as standard which is a nice bonus.
As @tamzzy said - hatchback boot is great. Worth noting that folding rear seats, at least on the 3 series, is an optional extra so if you’ve need a sizeable boot, a 4 GC may be best.
Got 50mpg on the 440i lol (granted that was during lockdown)
Usually around 38-42mpg on motorway miles between Brum and Liverpool (so about a 100 mile journey).
It's only when you're doing urban miles where the 40i starts to show it's thirstiness Vs the 20i/30i, getting about 26-28mpg with urban miles.
As someone who has owned a 20i and a 28i, would not recommend a 20i...the 20d is probably the better choice if you have to get a 20x, (if your driving circumstances allow the 20d). If not then jump to a 30i, yes it's the same engine but the extra poke is definitely worth it, or get a 20i and remap if you don't care too much about the warranty
Usually around 38-42mpg on motorway miles between Brum and Liverpool (so about a 100 mile journey).
It's only when you're doing urban miles where the 40i starts to show it's thirstiness Vs the 20i/30i, getting about 26-28mpg with urban miles.
As someone who has owned a 20i and a 28i, would not recommend a 20i...the 20d is probably the better choice if you have to get a 20x, (if your driving circumstances allow the 20d). If not then jump to a 30i, yes it's the same engine but the extra poke is definitely worth it, or get a 20i and remap if you don't care too much about the warranty
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Cheers all for info
Regarding driving circumstances, it's hybrid. Commuting wise I'll be in start stop traffic in the mornings and evenings commuting through a city with some dual.carrage way which is free flowing . Some days I'll be on a dual carrageway / motorway for family stuff.
I think my milage looking at past mot for last year is around 13500 miles
Regarding the 3vs 4 series, I'll look at both as it depends what comes up but I'll aim for 4. Just need to decide on petrol Vs diesel
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Running the engine at idle won't charge it much, if at all. Can you plug in a trickle charger?
A month should be fine anyway.
Unfortunately not.
But I guess a month will be ok, if it won't start after that I guess I'd need to get a booster pack?
It'll be fine.
As I was doing some motorway journey today and yesterday in my current 120d e82, I usually have the On board computer displaying miles range, rather than avg mpg etc.
When you flick it to live mpg motorway is obviously pretty good, dual carrage ways ok similar aslong as there isn't traffic. Inner city but quiet, odd red light ok you can start to see it using more fuel but manageable. But constant start stopping every 3-5 meters, my car just drinks the diesel like there is no tomorrow.
Reason why I flicked my mpg to live readout rather than range or AVG is to see, as I sometimes have a heavy foot .
This is what worries me about switching to petrol, will it drink lots of fuel quickly darting though start stop traffic every 5-6 meters. Although saying that it has to be better than diesel
When you flick it to live mpg motorway is obviously pretty good, dual carrage ways ok similar aslong as there isn't traffic. Inner city but quiet, odd red light ok you can start to see it using more fuel but manageable. But constant start stopping every 3-5 meters, my car just drinks the diesel like there is no tomorrow.
Reason why I flicked my mpg to live readout rather than range or AVG is to see, as I sometimes have a heavy foot .
This is what worries me about switching to petrol, will it drink lots of fuel quickly darting though start stop traffic every 5-6 meters. Although saying that it has to be better than diesel
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Sounds like the perfect use case for a hybrid
Sounds like the perfect use case for a hybrid
But the proper plug in hybrids you don't want a battery that's over 5-7 years old (so newer car) . So I'm told..
I think mild hybrid is the bridging gap for the moment although I don't want to get my hopes up then and it turns out it's not actually doing anything
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That should be in the range that a diesel makes economical sense