F31 330d xdrive economy - not great

F31 330d xdrive economy - not great

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Discussion

apotts

254 posts

207 months

Friday 27th January 2017
quotequote all
XMT,

Of course it is. And when it comes to driving style, everyone will describe their style as "normal".

I was taking a test drive of a BMW once, and the salesman drove the car to the petrol station. He just accelerated/braked/accelerated/braked the whole time. Even on the short bit of a "cruise" he would accelerate (hard) let the speed drift back, accelerate (hard) again, and so on.

When someone comes onto a forum saying my XYZ only does n mpg, nearly every time I bet it's because the driver just drives in a certain way, over a certain usage pattern. The only exceptions seem to be a stuck thermostat.

Incidentally, my stupid summer staggered M Sport road roller wheels/tyres cause a drop of about 3-4 mpg over my skinny winter tyres on the motorway.

anonymous-user

54 months

Friday 27th January 2017
quotequote all
Welshbeef said:
gizlaroc said:
I used to get better MPG from my 335i than my 535d.
On the school run of 6 miles it was considerably better.

Diesels take an age to warm up, cold weather and winter diesel really doesn't either.

It takes around 1 mile for my current E350 petrol to get to 90ºc, even in winter, the E350cdi before it was still not up to temperature by the time I got back from the school run.

The E350cdi before used to take around 26 miles before the mpg started to slowly climb, which tells me that is how long it took for it to get fully up to temperature.
For many people I bet they never do many journeys longer than 26 miles.
26 miles is a very long way - might I suggest the thermostat wasn't working properly

It does seem a long way. My 530d is up to 100c oil in 10/12 miles when the average from start is around 40 and climbing.

This morning I went out in our 350SLK. The water was up to 90 after 3 miles or so when the average from start was 21mpg. After 1 mile it was about 55c and 16mpg.


paulwirral

3,140 posts

135 months

Friday 27th January 2017
quotequote all
XMT said:
Again its driving style and usage of a car.

I find it funny when poeple come on here saying I started a 5 hour jounrey, resent the comp and by the end it showed 35-70,0000mpg: you bloody should get good MPG - its the ideal way to be doing it!

In the real world for the majority that doesnt happen every day or even regularly.

I have a 335i (e93) and during my usual mixed driving I get 21-23mpg. However on a long run say 1 hour plus I can easily get 35mpg+ on the motoroway sitting at 75-85mph.
I only did it to find out what it would do , 5 hours was half way point of the journey and that's how bored I was ! it was the first time it had been re set since I got the car , previous to that and since it returns 30 - 33 mpg , wife driving to and from work , city traffic , back roads and motorway , so it's a pretty good indicator of real world .

anonymous-user

54 months

Friday 27th January 2017
quotequote all
paulwirral said:
XMT said:
Again its driving style and usage of a car.

I find it funny when poeple come on here saying I started a 5 hour jounrey, resent the comp and by the end it showed 35-70,0000mpg: you bloody should get good MPG - its the ideal way to be doing it!

In the real world for the majority that doesnt happen every day or even regularly.

I have a 335i (e93) and during my usual mixed driving I get 21-23mpg. However on a long run say 1 hour plus I can easily get 35mpg+ on the motoroway sitting at 75-85mph.
I only did it to find out what it would do , 5 hours was half way point of the journey and that's how bored I was ! it was the first time it had been re set since I got the car , previous to that and since it returns 30 - 33 mpg , wife driving to and from work , city traffic , back roads and motorway , so it's a pretty good indicator of real world .

To be fair it's a good indicator of your real world.

paulwirral

3,140 posts

135 months

Friday 27th January 2017
quotequote all
REALIST123 said:

To be fair it's a good indicator of your real world.
Or maybe how far the 340 moved the game on !

Swervin_Mervin

4,452 posts

238 months

Friday 27th January 2017
quotequote all
apotts said:
When someone comes onto a forum saying my XYZ only does n mpg, nearly every time I bet it's because the driver just drives in a certain way, over a certain usage pattern. The only exceptions seem to be a stuck thermostat.
Not necessarily so in modern dervs IME. It genuinely does seem to be more hit and miss than petrol engined variants.

julian64

14,317 posts

254 months

Friday 27th January 2017
quotequote all
XMT said:
Again its driving style and usage of a car.

I find it funny when poeple come on here saying I started a 5 hour jounrey, resent the comp and by the end it showed 35-70,0000mpg: you bloody should get good MPG - its the ideal way to be doing it!

In the real world for the majority that doesnt happen every day or even regularly.

I have a 335i (e93) and during my usual mixed driving I get 21-23mpg. However on a long run say 1 hour plus I can easily get 35mpg+ on the motoroway sitting at 75-85mph.
Okay I'm close to you. I do real world driving. I drive inside the M25 between peoples houses for a good proportion of the day, otherwise I commute about 20 miles each way to work.

I did this in an E39 M5 for about ten years, my average fuel consumption was 22-24. I swapped to an F30 335xd three years ago, and I do the same job/journeys. My current fuel consumption which hasn't be reset for ages is 40 give or take 0.1. I think its 39.8 at the moment.

If I reset it and drive round the M25 to my wifes family, doing the steady 50 we are all forced to do for a good portion of the M25 these days, I will get a smidge under 50, door to door.

335d

758 posts

118 months

Friday 27th January 2017
quotequote all
paulwirral said:
Or maybe how far the 340 moved the game on !
Fuelly is usually a reasonable guide to typical fuel economy. It shows 30mpg for the 340i http://www.fuelly.com/car/bmw/340i

gizlaroc

17,251 posts

224 months

Friday 27th January 2017
quotequote all
REALIST123 said:
Welshbeef said:
gizlaroc said:
I used to get better MPG from my 335i than my 535d.
On the school run of 6 miles it was considerably better.

Diesels take an age to warm up, cold weather and winter diesel really doesn't either.

It takes around 1 mile for my current E350 petrol to get to 90ºc, even in winter, the E350cdi before it was still not up to temperature by the time I got back from the school run.

The E350cdi before used to take around 26 miles before the mpg started to slowly climb, which tells me that is how long it took for it to get fully up to temperature.
For many people I bet they never do many journeys longer than 26 miles.
26 miles is a very long way - might I suggest the thermostat wasn't working properly

It does seem a long way. My 530d is up to 100c oil in 10/12 miles when the average from start is around 40 and climbing.

This morning I went out in our 350SLK. The water was up to 90 after 3 miles or so when the average from start was 21mpg. After 1 mile it was about 55c and 16mpg.
Sorry wasn't very clear.

Thermostat was fine, it used to say it was at 90ºc (think it is a 92ºc 'stat) by the time I had got to the second roundabout on the A11 from mine which is around 12 miles or so, however, even feathering the throttle and sat at 70mph the MPG would not climb, it used to take till the next big roundabout which is roughly 26 miles before it slowly started to creep up.

I was the same with my 535d, same with my previous E320cdi.

The 335i however, started to climb up mpg wise after about 6-8 miles, same with my current E350 petrol.


The other thing, my E350cdi started at 38mpg and dropped, before getting up to temperature and then started to climb again. My E350 petrol starts at 14mpg and sits there for 2 miles and then starts to climb and pretty quickly, by 6 miles it is saying 29mpg pretty much every morning.

I think this in itself is why my diesels were less accurate compared with calculated figures.
If you only went a mile or two the diesel would have dropped to around 32ish, but go 4 miles and it dropped to 26ish before climbing.
The reality is it would be better to start at 26mpg because 38mpg from cold was nonsense.

Welshbeef

49,633 posts

198 months

Friday 27th January 2017
quotequote all
Once I managed 26mpg out of a tank on a C5 RS6 slow all the way on the m way no rush no stop start climate on etc.
Average 16-18mpg
Worst tank 8-9mpg!

CrgT16

1,967 posts

108 months

Friday 27th January 2017
quotequote all
I drive my 340i with no regard to mph. It just happens for the driving I do average is 30mpg. This includes motorway, A roads and spirited driving when in the mood. I didn't buy the 340i to be worried about mph or to put in eco mode all the time. A lot of the time due to road, traffic and because I like to keep my licence I drive sensibly as anyone else. When I feel like a good blast on private roads I do so as well... fuel light comes up go to petrol station fill up and carry on. Works for me I don't drive like the world is going to end all the time.

anonymous-user

54 months

Friday 27th January 2017
quotequote all
gizlaroc said:
REALIST123 said:
Welshbeef said:
gizlaroc said:
I used to get better MPG from my 335i than my 535d.
On the school run of 6 miles it was considerably better.

Diesels take an age to warm up, cold weather and winter diesel really doesn't either.

It takes around 1 mile for my current E350 petrol to get to 90ºc, even in winter, the E350cdi before it was still not up to temperature by the time I got back from the school run.

The E350cdi before used to take around 26 miles before the mpg started to slowly climb, which tells me that is how long it took for it to get fully up to temperature.
For many people I bet they never do many journeys longer than 26 miles.
26 miles is a very long way - might I suggest the thermostat wasn't working properly

It does seem a long way. My 530d is up to 100c oil in 10/12 miles when the average from start is around 40 and climbing.

This morning I went out in our 350SLK. The water was up to 90 after 3 miles or so when the average from start was 21mpg. After 1 mile it was about 55c and 16mpg.
Sorry wasn't very clear.

Thermostat was fine, it used to say it was at 90ºc (think it is a 92ºc 'stat) by the time I had got to the second roundabout on the A11 from mine which is around 12 miles or so, however, even feathering the throttle and sat at 70mph the MPG would not climb, it used to take till the next big roundabout which is roughly 26 miles before it slowly started to creep up.

I was the same with my 535d, same with my previous E320cdi.

The 335i however, started to climb up mpg wise after about 6-8 miles, same with my current E350 petrol.


The other thing, my E350cdi started at 38mpg and dropped, before getting up to temperature and then started to climb again. My E350 petrol starts at 14mpg and sits there for 2 miles and then starts to climb and pretty quickly, by 6 miles it is saying 29mpg pretty much every morning.

I think this in itself is why my diesels were less accurate compared with calculated figures.
If you only went a mile or two the diesel would have dropped to around 32ish, but go 4 miles and it dropped to 26ish before climbing.
The reality is it would be better to start at 26mpg because 38mpg from cold was nonsense.

I know where you mean. I'm a couple of miles NW of Hingham. Leaving home the 530d, reset, will start very low and gradually climb. By the time I'm on the A11 at Attleborough it's high 30s, mid 40s by Thetford.

Anyway. I'm sure it's all to do with use and style!

My plan is to change the BMW at the end of this year for another 5. My mileage is lower than it was and I'm thinking of petrol. As you've often said, the extra fuel cost all thing considered is worth it, especially as diesel is no longer favourite with our leaders!

Only problem then is that I seem to be pushed towards the 530 because the last thing I need or want is Xdrive. I tried a 528i F10 when I bought the 530d and wasn't impressed. Maybe it's better now albeit lacking in torque.

The 530i is the 4 pot isn't it? Autocar reported it as a six.

Slippydiff

14,834 posts

223 months

Friday 27th January 2017
quotequote all
julian64 said:
Okay I'm close to you. I do real world driving. I drive inside the M25 between peoples houses for a good proportion of the day, otherwise I commute about 20 miles each way to work.

I did this in an E39 M5 for about ten years, my average fuel consumption was 22-24. I swapped to an F30 335xd three years ago, and I do the same job/journeys.

My current fuel consumption which hasn't be reset for ages is 40 give or take 0.1. I think its 39.8 at the moment
30k miles '63 plate F30 330 D MSport auto (non X-Drive) driven spiritedly everyday in urban, rural and M/way conditions. It mirrors your average fuel consumption readings precisely. So much for 56mpg, BMW, you're a bunch of w*nkers rolleyes
My trusty old E90 335D M Sport auto was a better drivers car and returned 36.5 mpg over 120k miles.
I'm not overly impressed with the new steed (refinement issues) I think I'm done with oil burners now (130k miles in an E46 330D M sport, 120k miles in an E90 335D M Sport (and the best daily I've owned) An M235i/240i looks to be next, or I may go back to an E90 (but with a petrol lump).

CrgT16

1,967 posts

108 months

Friday 27th January 2017
quotequote all
Will they launch a 540i SDrive. Silly not to, I don't find I need 4wd here in the south, never had a problem in 12 years even with mild snow. Just adapt driving style to road conditions. I am not a fan of 4wd but can have its uses I suppose.

gizlaroc

17,251 posts

224 months

Friday 27th January 2017
quotequote all
REALIST123 said:

I know where you mean. I'm a couple of miles NW of Hingham.

The 530i is the 4 pot isn't it? Autocar reported it as a six.
You'll have to pop in and say "Hi" at some point, I have a shop in Wymondham.


It was a 6cyl, but the 528i became the 530i recently, so now a turbo 4 pot.


The nice thing about the 530i is the tuning. It will remap to 300hp no problem.

smashy

3,040 posts

158 months

Friday 27th January 2017
quotequote all
gizlaroc said:
You'll have to pop in and say "Hi" at some point, I have a shop in Wymondham.


It was a 6cyl, but the 528i became the 530i recently, so now a turbo 4 pot.


The nice thing about the 530i is the tuning. It will remap to 300hp no problem.
Hope you dont sell Ultraseal, Realist will brick your window smilesmilesmile

Joke JOKE I come in peace smile

Edited by smashy on Friday 27th January 19:06

anonymous-user

54 months

Friday 27th January 2017
quotequote all
smashy said:
gizlaroc said:
You'll have to pop in and say "Hi" at some point, I have a shop in Wymondham.


It was a 6cyl, but the 528i became the 530i recently, so now a turbo 4 pot.


The nice thing about the 530i is the tuning. It will remap to 300hp no problem.
Hope you dont sell Ultraseal, Realist will brick your window smilesmilesmile


Can you still get that snake oil?! wink

anonymous-user

54 months

Friday 27th January 2017
quotequote all
gizlaroc said:
REALIST123 said:

I know where you mean. I'm a couple of miles NW of Hingham.

The 530i is the 4 pot isn't it? Autocar reported it as a six.
You'll have to pop in and say "Hi" at some point, I have a shop in Wymondham.


It was a 6cyl, but the 528i became the 530i recently, so now a turbo 4 pot.


The nice thing about the 530i is the tuning. It will remap to 300hp no problem.

Maybe I will drop in. Mind you, I still pronounce it Wym-ond-ham so they might not let me into town..... wink

I'm in no hurry, I'll keep my fingers crossed they produce a 3L six with 2wd. I do like 6 cylinders.

matt21

4,288 posts

204 months

Saturday 28th January 2017
quotequote all
First long motorway drive today. Reset at home, 5 miles to motorway then 100 miles up an empty motorway sat an indicated 80mph. 39mpg. 16 plate 330d Touring X Drive. Bit disappointed in that

335d

758 posts

118 months

Saturday 28th January 2017
quotequote all
matt21 said:
First long motorway drive today. Reset at home, 5 miles to motorway then 100 miles up an empty motorway sat an indicated 80mph. 39mpg. 16 plate 330d Touring X Drive. Bit disappointed in that
That does sound very poor. I would expect 45mpg from my 335d saloon xDrive at that speed. Perhaps you should measure the fuel economy brim to brim and see if the OBC is right before you consider doing anything else.

Worth noting that the 330d sDrive and 330d xDrive do not have identical engines - the xDrive is set up to produce more torque. Anecdotal evidence suggests that the 330d xDrive may be less efficient than the 335d xDrive.