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      10-07-2014, 11:07 AM   #1
c3uo
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Arrg 35i or 35d - cold weather and long term reliability?

I'm in Canada and buying a new x5 (hopefully).


It goes to -20 f / -29 c regularly. I have a x3 35i and it had no problems at low temperature. Will the diesel be the same?

What about reliability up to 160,000 km out of warranty. Is dpf, scr, etc a problem ? I figure these wrinkles should be worked out from euro experience.

Fuel mileage and cost are not the major issue. I just have no local dealer so reliability is important to me. Thanks!
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      10-07-2014, 11:55 AM   #2
MattBianco
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Quote:
Originally Posted by c3uo View Post
I'm in Canada and buying a new x5 (hopefully).


It goes to -20 f / -29 c regularly. I have a x3 35i and it had no problems at low temperature. Will the diesel be the same?

What about reliability up to 160,000 km out of warranty. Is dpf, scr, etc a problem ? I figure these wrinkles should be worked out from euro experience.

Fuel mileage and cost are not the major issue. I just have no local dealer so reliability is important to me. Thanks!
For all it's worth, diesel engines today are not the same as those of yesteryears, aided by better engine, emission, refining and battery technology. In Europe 55% of all new cars are diesel (and yes, I know it includes warm countries like Malta). But more specifically, based on 2012 data (source: European Market Stats Pocketbook 2013 (EU_vehiclemarket_pocketbook_2013_Web.pdf) diesel is well proven in cold countries, specifically BMW. Bits and pieces from the PDF:

• Diesels sell well in colder Euro countries: Finland (39%), Sweden (67%), ..(pg 88), though tax policy affects behavior.

BMW has been proven in the market, with the largest share of diesels sold in Europe (page 45)

• Emission detail: 96% less than '92 EU standards (pg 8)

Parts of Canada are much colder, and you may need plug-in engine warmers, even for gasoline engines as you well know. My own experience is that diesels are louder when cold until they warm up; and, I had a singular experience seeing a friend's VW diesel started instantly at -25C/-15F for several days in a row, two winters ago.

p.s. you can see pre 2012 data in the same PDF, starting page 90.

Hope this helps.
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Last edited by MattBianco; 10-07-2014 at 12:27 PM..
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      10-07-2014, 01:57 PM   #3
Wobbles
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At the Battle of Stalingrad in 1942, Soviet T-34 diesel engined tanks had no problems starting up and running circles around Paulus' gasoline powered panzers... Diesels apparently tolerated the winter better
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      10-07-2014, 02:54 PM   #4
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At the Battle of Stalingrad in 1942, Soviet T-34 diesel engined tanks had no problems starting up and running circles around Paulus' gasoline powered panzers... Diesels apparently tolerated the winter better
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      10-07-2014, 03:25 PM   #5
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Quote:
Originally Posted by MattBianco View Post
Finland (39%)
As you surmised, this is related to taxation. There is a surcharge on the initial car purchase and then another yearly charge (IIRC) associated with owning a diesel. Otherwise I am sure the Finnish diesel sales would be higher.
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