FL 740d und 750d Verbrauch

[HatTrick]

Hello everyone!

My first post here. Excuse me for writing in english but my german is not quite good enough to discuss cars on a forum.

I'm currently driving an E65-740d 2004 when commuting to work which is a 200km round trip and about 50tkm/year. So far I've done about 190tkm in this car over the 4 years that I've owned it.
My average consumtion is 8.5L/100km (specified combined is 9.7) and I get about 1050km on one full tank. Speed varies between 50-130km/h with an average of around 70km/h.

I have begun doing research for my next car that will be replacing this 740d in about 3 years time. I don't really like the interior styling of MB or Audi so most likely I'll be staying with BMW.
There's three models I'm looking at since I want to spend my commute in comfort and with power but also low consumption, 640d (just love that body), 740d and 750d.

I have driven the FL F01-730d but I just find it too tired and weak compared to my E65 so that's not an option.
Last week I got the chance to spend an hour with a 750Ld,  BMW 750Ld Test drive , and pretty much fell in love with it.
The comfort seats eventhough they look the same as the E65 was a tad more comfortable. The ride on highways was quiet and very comfortable just as it should. When stepping on the gas pedal it does give off that typical 6-cyl roar quite different from the V8 diesel but not annoying and the power was really brutal. Didn't really notice much of the turbo lag.

I have not had the chance to try the 640d or FL 740d yet as the dealers around here are very stingy when it comes to testdriving these models but I'm working on it.

The one thing I could not estimate from my time with the 750Ld was what kind of average consumption I can expect on the roads that I commute.
I've read the comments here in several threads that people find the 750d thirsty for a diesel but also that the same people seems to drive quite fast 130-220km/h or a high degree of city driving which of course would lead to a higher consumption.
In my own driving I have max 5% city and the rest is mostly cruising along smaller countryside roads with very few stops.

So I'm asking if anyone here is driving a 640d, FL 740d or 750d over longer distances with modest speeds and what kind of consumption you're getting?

Another reason I would find the 750d more attractive over a 740d is when looking at cars on mobile.de there are much more 750d's with a very high number of options compared to 740d's.

After living with a very well equipped E65,  BMW vin decoder online, I don't want to step down in this regard plus now there are even more fun options to be had.

[The Stig]

Do not expect being the 750d as reliable as your E65. BMW has some serious issues with this engine.

[pommy13]

I Choosed the 750 Lix because of the big Consumption of the "new" 50dlx.....
Make no sense to say more than that ....

[HatTrick]

Zitat von pommy13

I Choosed the 750 Lix because of the big Consumption of the "new" 50dlx.....
Make no sense to say more than that ....

I did read your comments about that but also that you spend a lot of time above 160km/h which is quite hazardous to my driver's license here in Sweden. Not to mention the impact on consumption...

As stated before my average speed is around 70km/h with short hops up to 130km/h. That's why I was wondering if anyone here drives these models at more "modest" speeds.

[pommy13]

Zitat von HatTrick

I did read your comments about that but also that you spend a lot of time above 160km/h which is quite hazardous to my driver's license here in Sweden. Not to mention the impact on consumption...

As stated before my average speed is around 70km/h with short hops up to 130km/h. That's why I was wondering if anyone here drives these models at more "modest" speeds.

I live in Austria, here ist 140 max... (130 official) and i drive also most time very calm.... there were not 2 Liter full max between the D and the i.... So i prefered the 8 zylinder instead of 3 turbos... Also i like the 40D very much.

[KaiMüller]

Speak of the devil......

[haasep]

If you drive 50K Km a year at a moderate speed the 730d is more than enough. If you are asking for fuel consumption the 730d is also the best choice.

You must decide if you want to pay around 100€ more a month driving a 740d instead a 730d.

[HatTrick]

Zitat von haasep

If you drive 50K Km a year at a moderate speed the 730d is more than enough. If you are asking for fuel consumption the 730d is also the best choice.

You must decide if you want to pay around 100€ more a month driving a 740d instead a 730d.

That's the million dollar question, isn't it... Would it be that much more?
Looking at the specified combined consumption, 730d 5,6L/100km, 740d 5,7L, 740d xD 6.0L.
Now of course specified numbers has to be taken with a grain of salt but with a lot of different cars I've tried out on my commute I've been able to get within 10% with most of them. An Audi A4 Avant 3.0 TDi was the glaring exception with 19% above.
And my E65 740d that has a specified combined at 9.7L I drive at 8.5L.

But just as an example let's add 10% to the 730d and 20% to the 740d.
I drive about 4200km/month
5.6L + 10% = 6,16L/100km gives 258.72L/month
5.7L + 20% = 6.84L/100km gives 287,28L/month
Average price of diesel in Sweden is 1.5EUR/L which would give a monthly cost of:
730d: 388,08EUR/month
740d: 430,92EUR/month
That's 42.84EUR difference per month that I'm quite willing to pay for the extra power and torque.

The reason I also want power in the engine is because there are only a few places along the way where I can overtake slower cars, buses or trucks and those stretches are not that long so I'll want to get past them as quickly as possible.

But really, as long as I can get it below what my E65 drinks I'll be happy!

[The Stig]

Look, all the blocks of these diesels are the same with nearly 3 litres cylinder capacity. The 750d is a tri-turbo with enourmous power volume ratio. And it is a new development. According to my information it is not very steady, nearly no offered used car around here still has the first engine.
In my opinion the risk of non calculable costs is too high.