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#1
12-05-2011, 05:08 AM
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2009 E70 - Diesel Fuel Consumption Issue
Hi Everyone,
BMW X5 E70 XDrive 30dSE (2009) Mileage:15,000 I hope someone can help me. I recently noticed that my fuel consumption had changed (just got car back from a garage). My car is using more fuel. Fuel Mileage Before 75 litres 280 - 290 After 75 litres 250 - 260 My driving style has remained the same, load in car is similar, routes pretty much the same, and I am using the same fuel as I have always done. I have obtained a copy of the technical data for my vehicle from BMW UK attached with file. The garage have said that everything is OK and it is my driving habit. Can some help me out as to what the probable cause/s could be? Many Thanks in advance for all your help. Sanjiv (London) 
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#2
12-05-2011, 07:00 AM
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That sounds bad; but your consumption beforehand was awful too. I used to get 400miles out of a tank; and my X5 was a petrol 3.0is.
Are you driving 100% in the City?
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StumpyPete  Current: gone over to the dark side of Ingolstadt due to BMW unreliabilty Previous: Xena III E70 3.0si, Space Gray Previous: Xena II E53 3.0i SE, Manual, Toledo Blue Previous Previous: Xena E53 3.0i SE, Manual, Topaz Blue
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#4
12-05-2011, 01:21 PM
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Could be the effects of seasonally adjusted fuel. Suppliers typically change the fuel spec during winter to handle the cold weather. Winter fuel does not have the same heating value, hence you use more. Not sure what the practice is in the UK, but it is routine in North America, as standard diesel starts to gel at -10C.
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#6
12-05-2011, 07:14 PM
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Quote:
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#7
12-06-2011, 05:59 AM
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I would take it for a blast up the motorway for about 100 miles and see what consumption you get. You should get high 20s for a steady 70-75 mph, possibly low 30s.
What is the onboard consumption reading giving you?
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StumpyPete Current: gone over to the dark side of Ingolstadt due to BMW unreliabilty Previous: Xena III E70 3.0si, Space Gray Previous: Xena II E53 3.0i SE, Manual, Toledo Blue Previous Previous: Xena E53 3.0i SE, Manual, Topaz Blue
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#8
12-06-2011, 12:41 PM
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Odometer & Trip distance - 46 mls & 235.7
On-board Computer - Computer Range. 46mls Distance to dest. -31mls Speed. 17.0 mph Consumption. 17.8mpg On-board Computer - Journey Computer Departure. 12:52 Duration. 20:31. H Distance Covered. 235 mls Speed. 12.9 mph Consumption. 14.1 mpg Both were reset aon filling up with 75 litres of fuel.
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#9
12-06-2011, 12:56 PM
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just came back form a long trip from Montreal Canada to orlando Florida
over 7000kms in 23 dys average 8liter per 100km, pretty good and thats at 120-130kph on highway and regular speed in cities very smooth, lots of passing power extremely happy that a 2011 diesel with 33000km
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j-p - montréal 2007 X5 4,8, saphire black, saddle brown, sport package SOLD 2011 X5 Diesel Last edited by jpl; 12-06-2011 at 04:55 PM.
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#10
12-09-2011, 07:41 AM
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Quote:
__________________
StumpyPete Current: gone over to the dark side of Ingolstadt due to BMW unreliabilty Previous: Xena III E70 3.0si, Space Gray Previous: Xena II E53 3.0i SE, Manual, Toledo Blue Previous Previous: Xena E53 3.0i SE, Manual, Topaz Blue
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