E92 330d Economy issues
E92 330d Economy issues
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OllieBirmingham

Original Poster:

5,700 posts

221 months

Monday 5th May 2008
quotequote all
Just bought an E92 330D M-Sport Touring. Love the car, but only getting an average economy of 32.5mpg according to the OBC over the last 600 miles. Best achieved so far is 38mpg on a long run. How does this compare to other peoples experiences? Is something wrong? If I get it re-mapped by DMS or similar will the economy improve?(And what sort of gains would I be likely to see?) Sorry for the list of questions, but was led to believe I should be getting nearer to 40mpg overall. BTW the car is an auto.

Matthew_Eames

1,052 posts

233 months

Monday 5th May 2008
quotequote all
most diesels need 40k or so to come on song fully with the economy

the remap may help, it would depend on the relationship between the gearbox ECU and main ECU though more torque will perhaps stop it downshifting?

MattOz

4,020 posts

293 months

Monday 5th May 2008
quotequote all
The autos tend to be about 3-5mpg less frugal than a manual. If you're doing plenty of town or stop/start driving, then 32 is about right. My manual E90 330d averaged just over 42mpg.

Matt

Olf

11,978 posts

247 months

Monday 5th May 2008
quotequote all
I have an E46 330d Auto. Different engine I know but with regular spirited driving I struggle to get above 35 and often languish around 33.

The_Doc

6,259 posts

249 months

Monday 5th May 2008
quotequote all
Olf said:
I have an E46 330d Auto. Different engine I know but with regular spirited driving I struggle to get above 35 and often languish around 33.
me same car and I do 1,500 miles per month currently

I see 36mpg ave.

dxb335d

2,905 posts

224 months

Monday 5th May 2008
quotequote all
Good gains for performance. I rate them highly!

PJR

2,616 posts

241 months

Monday 5th May 2008
quotequote all
Yes, if its an auto, expect it to be a good 5mpg worse off. Also, put a few thousand miles on it before looking at the mpg figures too seriously.

P,

vincenz

693 posts

261 months

Monday 5th May 2008
quotequote all
If economy was an issue (which you are implying it is) did you not consider the smaller diesel unit?

It is a 6 cylinder afterall and it could be ones driving thats the issue. As mentioned above the more miles covered the more the MPG will tend towards the specified values.
But if I was concerned about economy the 2 litre unit would have been my first choice.

OllieBirmingham

Original Poster:

5,700 posts

221 months

Tuesday 6th May 2008
quotequote all
Not overly concerned, just understood that the general consensus was that it was a bit better than I am getting so just wanted to make sure there was nothing wrong with it!!

Its got 12k on it already, I reckon an oil service and a visit to DMS should improve those figures slightly.

dr matt uk

18,084 posts

229 months

Tuesday 6th May 2008
quotequote all
I've been tooling around in a new 330d auto. And getting less than 30mpg (to be fair though it is a combo of town and spirited driving).

The 330d is only economical vs a 330i petrol. Even though it is diesel it is still a heavily turbo charged 3.0ltr lump. I often hear and read so much about "my x30d is great - porsche rivalling performance but sill get 50mpg!" Don't believe a word of it myself. They are good engines and certainly have good performance but you'll pay for that in consumption. I guess you can nurse the mpg up to the top end of the manufacturers stats, but if thats the objective I'd buy the four-banger. Even when I had a 320d manual it averaged 42mpg - and that was over the course of a year with a lot of motorway work.

Olf

11,978 posts

247 months

Tuesday 6th May 2008
quotequote all
dr matt uk said:
I've been tooling around in a new 330d auto. And getting less than 30mpg (to be fair though it is a combo of town and spirited driving).

The 330d is only economical vs a 330i petrol. Even though it is diesel it is still a heavily turbo charged 3.0ltr lump. I often hear and read so much about "my x30d is great - porsche rivalling performance but sill get 50mpg!" Don't believe a word of it myself. They are good engines and certainly have good performance but you'll pay for that in consumption. I guess you can nurse the mpg up to the top end of the manufacturers stats, but if thats the objective I'd buy the four-banger. Even when I had a 320d manual it averaged 42mpg - and that was over the course of a year with a lot of motorway work.
320d I had on the same commute did 44/45 easy but made be cry with coredom when I drove it.

I think my commute is pretty crap though - mix of regular round-a-bouts and junctions so lots of stop, up to high speed, stop again etc. On a recent long run the car did 41 with me at the helm.

eowen

16,699 posts

294 months

Tuesday 6th May 2008
quotequote all
My 335d is averaging 38.7mpg in the 5k I have run it. I can achieve 42mpg on a gentle run, and mid 30's if pushing it a bit more.

MattOz

4,020 posts

293 months

Tuesday 6th May 2008
quotequote all
My current E46 330d (manual) has 47.1 for consumption1 and 45.2 for consumption2. The first figure relates to a 3 weeks of M40 usage at "outside lane of M40" speeds and the lower figure is an overall average. The car has done 74k miles.

Guess my motorway mileage is skewing the average figure a little, but anyone getting low to mid 30's from a 330d must be clogging it like a nutter or doing many short stop/start town trips. smile


Matt

steve-p

1,448 posts

311 months

Tuesday 6th May 2008
quotequote all
With a manual E92 M Sport 330d I've managed managed 55 mpg on a 50 mile run with only 200 miles on the clock from new, and it's averaged 44 mpg over the first 750 miles. 550 miles on the first tank of fuel which is acceptable. Maybe the manual box is a lot more efficient than the auto but I'd say it's pretty economical.

Welshbeef

49,633 posts

227 months

Tuesday 6th May 2008
quotequote all
steve-p said:
With a manual E92 M Sport 330d I've managed managed 55 mpg on a 50 mile run with only 200 miles on the clock from new, and it's averaged 44 mpg over the first 750 miles. 550 miles on the first tank of fuel which is acceptable. Maybe the manual box is a lot more efficient than the auto but I'd say it's pretty economical.
Ive said it before - thats fantastic economy from an amazing engine.

You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.


sniff petrol

13,125 posts

241 months

Tuesday 6th May 2008
quotequote all
Welshbeef said:
You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.
I'd be amazed if it could pull that gearing. Don't the 3.0l diesel BMWs pull something like 33mph/1k revs?

steve-p

1,448 posts

311 months

Tuesday 6th May 2008
quotequote all
sniff petrol said:
Welshbeef said:
You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.
I'd be amazed if it could pull that gearing. Don't the 3.0l diesel BMWs pull something like 33mph/1k revs?
330d is 40 mph per 1000 rpm for manual gearbox.

Welshbeef

49,633 posts

227 months

Wednesday 7th May 2008
quotequote all
sniff petrol said:
Welshbeef said:
You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.
I'd be amazed if it could pull that gearing. Don't the 3.0l diesel BMWs pull something like 33mph/1k revs?
Well thats what it is geared to Id guess top speed is achieved in 4th and not 5th - 5th trely is an overdrive which Id say all cars should have with 50-60mph/1000rpm gearing that way we'd all see economy fly through the roof + that would lead to less demand for Fuel and therefore a downward pressure on price.

Welshbeef

49,633 posts

227 months

Wednesday 7th May 2008
quotequote all
sniff petrol said:
Welshbeef said:
You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.
I'd be amazed if it could pull that gearing. Don't the 3.0l diesel BMWs pull something like 33mph/1k revs?
The Golf GT TDI 115, 1st gen Fabia vRS and early Golf GT TDI 130's were all geared to 38mph/1000rpm in 6th and i can assure you once into 45mph range it was fine to drive it great on dual carridgeways and M ways but also possible to use on a pleasant country drive.

Im guessing your much more used to petrol mph/rpm hence the confusion.

Olf

11,978 posts

247 months

Wednesday 7th May 2008
quotequote all
Welshbeef said:
sniff petrol said:
Welshbeef said:
You might be interested to know that Seat have just released the Ibiza with the 1.4 tdi 3 cylinder unit. The gearing on this 5 speeder is crazy 5th = 52mph/1000rpm.... top speed has it just over 2000rpm in 5th. Mind you the upside is 90mpg extra urban and clearly near on idle cruising.

No performance car clearly but this is showing the other end of the scale for these speeds.
I'd be amazed if it could pull that gearing. Don't the 3.0l diesel BMWs pull something like 33mph/1k revs?
The Golf GT TDI 115, 1st gen Fabia vRS and early Golf GT TDI 130's were all geared to 38mph/1000rpm in 6th and i can assure you once into 45mph range it was fine to drive it great on dual carridgeways and M ways but also possible to use on a pleasant country drive.

Im guessing your much more used to petrol mph/rpm hence the confusion.
Thats interesting because they were crap at in second trying to pull away from low MPH at round-a-bouts