X3 - 2.0d vs 3.0d MPG?
Discussion
woodsyguyAlan said:
Just bought a '66 reg X3 35D with12500 miles on the clock. After resetting all values the MPG is showing 18.3 after about 60 miles of use (local) driving sensibly using EcoPro mode.
That's not good I guess. Goes like stink tho' !
Was that 60 miles in one journey? If it was 2 miles at a time then I could imagine that the mpg would plummet like that. That's not good I guess. Goes like stink tho' !
woodsyguyAlan said:
Just bought a '66 reg X3 35D with12500 miles on the clock. After resetting all values the MPG is showing 18.3 after about 60 miles of use (local) driving sensibly using EcoPro mode.
That's not good I guess. Goes like stink tho' !
Doesn't like stink in eco pro mode though I'd get 18mpg in my old m5 and that did shift. That's not good I guess. Goes like stink tho' !
Somethings not right.
woodsyguyAlan said:
I agree 18 mpg is not good. I am off on a 200 mile round trip this week motorway and country roads so I will keep a manual check on fuel consumption. If it does not improve a visit to my local BMW dealer will follow. It's still under warranty.
Look up how to get the coolant temp display up on the dash and monitor that on your long run. It just hit 85-90deg c and stay around that level.If there's no CEL on the dealer will probably just fob you off.
well after 18 months i can give some real world feedback on my own question 
basically knocking round short journeys it does about 25MPG, as an average over a longer period of mixed used its got 33 on the dial, i've seen it do high 40s on a really sedate long motorway run, put generally longer runs mean mid to high 30s... so overall its not bad at all i don't think
basically knocking round short journeys it does about 25MPG, as an average over a longer period of mixed used its got 33 on the dial, i've seen it do high 40s on a really sedate long motorway run, put generally longer runs mean mid to high 30s... so overall its not bad at all i don't think
woodsyguyAlan said:
Just bought a '66 reg X3 35D with12500 miles on the clock. After resetting all values the MPG is showing 18.3 after about 60 miles of use (local) driving sensibly using EcoPro mode.
That's not good I guess. Goes like stink tho' !
Once you've done a brim to brim check you can work it out on a more realistic basis - I'd take the OBC with a pinch of salt to be honest. I've never reset mine over 70k miles and it's showing 30.8mpg as an average ('12 X3 35d).That's not good I guess. Goes like stink tho' !
Update on mpg issue.
Ok - engine management light(amber) stayed on. Codes indicated MAF Sensor and/or Temperature sensor etc.
Booked in with BMW (2.5 weeks !). Anyway thought I would have a look under the bonnet and lo and behold the connector to the MAF Sensor was hanging loose ! I reconnected, cleared the codes and light hasn't come back on. Away for a long weekend tomorrow so can check mpg and report back.
Hopefully this was the problem.
Ok - engine management light(amber) stayed on. Codes indicated MAF Sensor and/or Temperature sensor etc.
Booked in with BMW (2.5 weeks !). Anyway thought I would have a look under the bonnet and lo and behold the connector to the MAF Sensor was hanging loose ! I reconnected, cleared the codes and light hasn't come back on. Away for a long weekend tomorrow so can check mpg and report back.
Hopefully this was the problem.
So we've just completed a week's holiday in the Lake District from London (F25 X3 30d). Zero traffic there and back, on the way there cruise control was about 73 and on the way back about 78 with some manual driving as well. At the lakes some pretty sedate driving on the rolling hills but not much. Mpg went from 31.2 before the trip to a nosebleed-inducing 31.5 at the end. I swear 95% of the time the fuel economy guage was at 40+ but there you go. Might as well floor it the whole way next time..
That's pretty shocking to be fair!
I don't commute any more, so travel outside of rush-hours, and 95% of my trips are 30+ miles each way on dual-carriageways/Motorways but my petrol E91 325i is showing 34.4 mpg average on the OBC after 7,000 miles!
I had a 123d for over 6 years and 80K miles and did commute in it, but the OBC showed 48.7 mpg.
It looks like there is a price to pay if you want the aerodynamics of a barn door.
I don't commute any more, so travel outside of rush-hours, and 95% of my trips are 30+ miles each way on dual-carriageways/Motorways but my petrol E91 325i is showing 34.4 mpg average on the OBC after 7,000 miles!
I had a 123d for over 6 years and 80K miles and did commute in it, but the OBC showed 48.7 mpg.
It looks like there is a price to pay if you want the aerodynamics of a barn door.
woodsyguyAlan said:
Just completed 265 miles mixed driving. Fuel computer showing 39.3, brim to brim check 36.
Looks good to me. Just wondering how the MAF connector became disconnected ?
The car was serviced just before I collected it.
I'm going to suggest to the dealer my car is broken. Terrible mpg+stutter on light acceleration, something's wrong.. it's going in for the EGR recall next month so hopefully all done togetherLooks good to me. Just wondering how the MAF connector became disconnected ?
The car was serviced just before I collected it.
I think it's weight, as much as aerodynamics, that kill the economy. Those figures are within a few percent of what I got out of my (much slippier) 2016 640d GC.
Lovely car, but I found it a really disappointing engine - no drama, guttural under light load, poor economy much of the time and it never felt 'that' fast unless it was in high gears from low speed.
In fact I preferred the single turbo engine in the 530d I had last year. It was a much better blend of performance and economy.
Lovely car, but I found it a really disappointing engine - no drama, guttural under light load, poor economy much of the time and it never felt 'that' fast unless it was in high gears from low speed.
In fact I preferred the single turbo engine in the 530d I had last year. It was a much better blend of performance and economy.
We got rid of the 2013 X25 20d xdrive SE auto before xmas, took it from 12k miles to 80k miles, and over that period the OBC was showing 44mpg.
Calculated was more like 41mpg.
I had a 30d for a week when mine was in having a new idrive screen and drivers seat fitted, it was roughly 30% behind MPG wise.
My 530d Touring used to average 33mpg, OBC said 36.
My E350d estate used to average 33mpg also, the E350 petrol that replaced it, 3.5 litre V6 with 306hp averaged 31mpg.
My F11 520d that I bought recently is averaging about 38mpg, it is the B47 engine, incredibly refined for a 4 pot diesel, but MPG is crap!
I bought it after saying that diesel doesn't really save you much, if you want xxHP and a certain model then may as well go petrol, especially now most are forced induced, the main negative for many with petrol is no low down grunt (I call it smooth) but with all these turbo petrols that is no longer the case, they are like diesels with more refinement, nicer sound and more revs to play with when having fun.
Everyone said "The 520d will be amazing economy wise." I fell for it.
Annoyingly I was lent a G30 530i the other day, I did Norwich to Windsor, and then 100 miles nipping around the following day and ended up at.......38mpg. Same as my 520d.
I said I would keep the 520d for a year to see how much I could save, but it is just annoying me, the only reason I bought a diesel again was to save money, 47mpg urban, I would have expected it to get that as an average, but can't get that on a run in the real world.
I fancy a G21 Touring, seen a few saloons out there now and think they look great on the road, that in a touring 330i would do me a treat.
Calculated was more like 41mpg.
I had a 30d for a week when mine was in having a new idrive screen and drivers seat fitted, it was roughly 30% behind MPG wise.
My 530d Touring used to average 33mpg, OBC said 36.
My E350d estate used to average 33mpg also, the E350 petrol that replaced it, 3.5 litre V6 with 306hp averaged 31mpg.
My F11 520d that I bought recently is averaging about 38mpg, it is the B47 engine, incredibly refined for a 4 pot diesel, but MPG is crap!
I bought it after saying that diesel doesn't really save you much, if you want xxHP and a certain model then may as well go petrol, especially now most are forced induced, the main negative for many with petrol is no low down grunt (I call it smooth) but with all these turbo petrols that is no longer the case, they are like diesels with more refinement, nicer sound and more revs to play with when having fun.
Everyone said "The 520d will be amazing economy wise." I fell for it.
Annoyingly I was lent a G30 530i the other day, I did Norwich to Windsor, and then 100 miles nipping around the following day and ended up at.......38mpg. Same as my 520d.
I said I would keep the 520d for a year to see how much I could save, but it is just annoying me, the only reason I bought a diesel again was to save money, 47mpg urban, I would have expected it to get that as an average, but can't get that on a run in the real world.
I fancy a G21 Touring, seen a few saloons out there now and think they look great on the road, that in a touring 330i would do me a treat.
,,,dont understand those MPG figures ,Im doing crazy miles in my F30 30d at the moment trips of 250 miles and back ...always around 50/52mpg.
My trips to cornwall all up and down which hits mpg over a few days about 700 miles,I did that twice in my 120d and both times averaged 44mpg. In the 3 times with my F30 30d its been 45 and 46 mpg.
My trips to cornwall all up and down which hits mpg over a few days about 700 miles,I did that twice in my 120d and both times averaged 44mpg. In the 3 times with my F30 30d its been 45 and 46 mpg.
smashy said:
,,,dont understand those MPG figures ,Im doing crazy miles in my F30 30d at the moment trips of 250 miles and back ...always around 50/52mpg.
My trips to cornwall all up and down which hits mpg over a few days about 700 miles,I did that twice in my 120d and both times averaged 44mpg. In the 3 times with my F30 30d its been 45 and 46 mpg.
Yeah the F30 is much better economy wise. My trips to cornwall all up and down which hits mpg over a few days about 700 miles,I did that twice in my 120d and both times averaged 44mpg. In the 3 times with my F30 30d its been 45 and 46 mpg.
I should have got an F31 330d or 330i, however, in fact I started this by saying I would get a 320d Touring Efficient Dynamics, but that was a step too far. I really wanted another 5 series so thought, 520d on 225 section tyres would be the best compromise. I was wrong.
The problem is the F10/11 is a heavy car.
Heavier than the E61 by some 200kg, makes a big difference.
@Gizlaroc how fast do you drive on a run typically? Any roof box or other similar drag installed? I had an F11 525d for a while and my long term average over 16500 miles (approx 13 months) was 48.6mpg calculated. Best I saw was 52.6mpg calculated. Motorway journeys I'd usually do at about 65mph though.
chrisgeary said:
@Gizlaroc how fast do you drive on a run typically? Any roof box or other similar drag installed? I had an F11 525d for a while and my long term average over 16500 miles (approx 13 months) was 48.6mpg calculated. Best I saw was 52.6mpg calculated. Motorway journeys I'd usually do at about 65mph though.
If I sit at 70 it will just about do late 40s. I tend to sit at 80 and it is 40mpg.
Sit at 60mpg and it will see mid 50's.
This is the later B47 engine, it seems it is really struggling compared with the N47 reading reports.
I have scanned it and rran data logs to see if anything is not right, the only thing that is coming back as faulty is the o2 sesor, but the one post cat, which shouldn't effect anything mpg wise, if it was pre cat I would think that was the issue.
I have one coming so will see if it makes any difference.
It seems from other owners that what I am getting seems pretty normal.
I have fitted a DTUK tri channel tuning box today, no difference to MPG, but makes it far more palletable. Haha
I have a 2016 X3 f25 3.0d with a uprfade turbo with remapped to match put out a shade under 320bhp on rolling road. Usually keep it in eco mode and is returning 30 + mpg round town with 40+ on long runs. My driving style is what could be called generally soft anticipating traffic using throttle control to set my speed rather than brakes. Don’t get me wrong I do give the car a good push at times and it has started a few boy racers as it launched of the line very rapidly when needed. I loved this car as it’s been ultra reliable milage now at 70k uses no oil. Oil change every year service every 2 as only do 6k per year..reluctant to change as what would I replace it with.
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