Is the BMW M140i More Economical Than a BMW 116d?
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- Опубликовано: 13 май 2022
- Petrol vs Diesel? Which is more economical? Well to find out, I will be testing the economy between the high performance M140i, with the brilliant B58 engine. That will be up against the frugal diesel BMW 116d with the N47 engine.
#M140i #116d #fueleconomy 
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Great video mate! Keep it up 👍🏿
Appreciate that, thank you! : )
Used to have a Mercedes A220d remapped to 205bhp as a daily. Used to easily do 55-65mpg over my 35 mile commute which was 50/50 dual carriageway and country roads to get to the dual carriageway, was really good!👍
That’s brilliant! I think it’s clear that having a low powered output of the engine definitely makes the fuel economy worse, that’s an oversight on my part! 😉
Great video, 140i will be a near purchase for myself.
I currently have an 04 Bora Pd130,
200k miles on the clock, stage 2 230bhp. On my run to the coast it averages 65-75mpg on the motorway.
50 ish around town as I like to keep it revved up to stop it clogging the manifold. I still have good results even when I have my foot down in places.
Thank you Chris! That’s excellent fuel economy, I feel shortchanged getting a 116d, I’m mildly disappointed with my mpg! :( I don’t thing you can go wrong with an M140i though, does most things brilliantly and still returns exceptional fuel economy.
Great video but a bit of MPG analysis, 15mpg better is a % increase of 40% roughly from the 140i Quite a big difference on big fuel spending over a year. a 15mpg increase from 60mpg to 75 would be fat less a % increase for instance at 25%, and these % directly link to % increases and decreases in fuel cost.
Thank you for taking the time for the in depth analysis!
I have a 2011 116d and I have to say the mpg is amazing
Not the most refined engine it's noisy and can chuff a little smoke
But still love it
I have a m135i f20 and I get 38mpg mixed on eco mode… in sport I get around 35 on auto and 39 on manual mode
I have a 116d and these are the questions I ask myself, I don’t find issues with hills honestly, the torque does its job pretty well
I suppose with mine being a manual and if you’re caught in the wrong gear then it can be a small issue, I imagine if it was a 120d or automatic in the same situation then the hill wouldn’t be much of a problem.
Awesome comparison. The LCI 116D with the B37 engine has a much higher mpg.
Thank you Peter! What sort of MPG does the B37 get?
@@NathanMannin Combined with mine, it gets 59.8mpg. On the motorway at 70mph, it is mostly between 70 -80mpg. Also how fresh the engine oil is can make quite a difference too.
@@xAvatisx that’s pretty exceptional economy compared to its N47 counterpart. The B37 is a 1.5 3 cylinder engine isn’t it?
@@NathanMannin Yeah, that's it.
@@xAvatisx I think I had one a few years ago and it was in fact my first BMW! I don’t remember the economy though, as I was quite young and all I wanted to do was show off, so I don’t think I got 60mpg that 116d 😆
Im debating a m140i on a 18/19 plate. I have been in 2 minds over the running costs and insurance. Due to the fact i dont do much driving as i have a work van do you think a full tank would last quite a while?
Really depends on how you drive it and what sort of commutes you take it on I suppose! Driving it normally around town or on commutes I could imagine low 30’s with the occasional bootful here and there. They can achieve 45mpg on a long steady run too, just town driving and lots of hard acceleration I’d imagine low 20’s.
I’m using mine as a daily around my city and I get 27mpg at best. Not very efficient in my opinion. But you buy the car for its performance not efficiency
I would liketo see the real world figures of the m140i on long road trip tank range and average mpg
They were real world figures, it was a 50 mile round trip using predominantly dual carriageways. Unless you mean like a 200 mile long road trip?
Yes I mean like 200 mile long trip it would be more interesting to see
It’d be interesting to see the difference between a 116/120/123d and see if the the extra torque and power makes the car more/less efficient…
That’s precisely what I want to know too! I’m definitely in favour of it improving the efficiency fair amount!
It’s the same engine n47 116d , 118d and 120d - 116d and 118d are just detuned version of the 120d
123d has different turbo and larger intercooler
It is indeed the same engine, that’s why it’d be interesting to see the efficiency difference between them given the power output.
123d is bi turbo rather than single and also runs higher fuel pressure… gearing is also different compared to the 120d which could affect efficiency too.
I bet the 120D would be more economical than the 116D and 123D.
Best Buy a 120d next then Nathan and do the test again ;) we need answers
Get Michelin Pilot Sport 5's at ~38psi on your M140i if you want more economy. You'll get 50+mpg cruising at 70
I wasn’t aware M140i’s could be capable of 50mpg that easily? Are the PS5’s very efficient?
Aren’t the ps5s worse then the ps4s? Or am I being stupid.
@@UltraM140i nope, only very high pressures will.
What would the 140i get driving locally around town
Maybe mid to low 20’s I would imagine!
that cannot be right. i sold my 2016 116d 1 year ago and averaged 4.4L/100km which is about 65mpg UK and i drove it like any youngster does....
I believe your 2016 116d is the facelift and has the 3 cylinder 1.5 diesel engine compared to my 4 cylinder 2.0 diesel engine, so there could be a difference for that reason. Also this wasn’t just one stretch of road. If I drove this 116d on the motorway for a long distance without stopping, I probably would’ve achieved a much higher figure like yours.
I got a bmw 220d stage 1 with around 230bhp, when I drive VERY carefully I get around 66-70mpg on a long run :)
I envy you! 😉🤣 It really does seem like the lower powered variants suffer with worse fuel economy, because it has to work so much harder to get up to speed with the little power it has.
Great video, very interesting.
If you factor in the extra cost of diesel, I bet the M140i would at least break even.
Have you still got the C63?
Thank you very much! I can’t remember exactly unless I replay the footage, but at the moment diesel is the same price as the Momentum 99 that I put in the M140i. So the prices are very similar for now, but to only lose 15mpg by driving the M140i, it’s such a small price to pay for such a superb car!
Yes I still have the C63, every drive is such an event and experience!
@@NathanMannin
Good work Nathan 👍
BMW rectified this issue by completely changing the engine from the N47 to the B37 engine. You should have done this test with a 1 series that had this engine. Not the N47.
I don’t own the 1 series with the B37, I own the one with the N47 in this video. Got to make do with what I have : )
Even more so now the 140i is more efficient as diesel is 20p a litre more than petrol
Absolutely! They wouldn’t be too far apart in running costs with todays fuel prices!
you compare manual vs 8 speed auto its not same diesel cost more then petrol price
Fuel price is irrelevant as you can see at the end of the video with litres used, not how much money I used. 8 speed auto would be more efficient but not by much, especially with how careful I was in the manual.
Drive a 340i gt as a daily
I think I would go for a 340i Touring as a daily if I need the size
@@NathanMannin The GT is unique, I know it isn’t everyone’s cup of tea but I love it.
@@ManiacXIIl Yes they definitely are, I don’t see many on the road and the rear leg room is amazing! It’s just the looks which don’t personally do it for me.
I also didn’t know they did a 340i variant of the GT, would definitely fly under the radar!
@@NathanMannin Yeah rare to come across, when I purchased mine it was a one of one in the uk
M140i - average 31.2mpg
Very good economy all things considered! 🔥
I blew up my n47 engine lol
Oh dear! Was there any cause to the engine blowing up? 😆
@@NathanMannin timing chain decided to give way at 80mph.. and then it went kaput
I would recommend changing the timing chain tension and to keep it around 60mph for motorway driving and to avoid hard pulls
@@srs_lol That’s rough! It seems to be pot luck whether you get a good one or not, touch wood mine will hold out!
@@srs_lol avoid hard pulls? Comon my mapped 118d pulls straight to 150 no problem and if there’s a longer road will do 160 easily. N47s are very very strong expect the chain but chain mainly goes when people service the car every 15k and do very short journeys mainly with the stop start enabled. N47s are brilliant £30 tax for year cheap insurance and easily 50-60mpg. Also performance is best in its league really.
@@piovo5222 I had a 116d sport. I changed my oil every 8k.
Anyways driving >80mph on the motorway and the chain went then complete engine failure - spun a rod bearing with a hole in the block.
No signs of the chain about to give way ..e.g rattle on start up or chain rattle etc..
Did about 40k miles when I owned it at 50kmiles . - one lady owner from new- full bmw dealer history.
I would have fitted a new engine if the chain was in the front like the M47.
when you spend over 30k on a performance car and then moan its not economical
22K* I never moaned about it being uneconomical, if anything I praise the M140i for being economical rather a lot.