Originally Posted by ihbase
Second: The places in Canada with average low December temperatures anything like you suggest are places like Yellowknife (-27C), Inukjuak (-21C) and Winnipeg (-11C).
So, unless one has a 335d in one of these places (and why would you chose a 2-wheel drive diesel in one of these places anyhow?) it seems highly unlikely that the scenario you suggest would arise. Not that is was not cold where you were, but that is not a common environment and, your low voltage issue is not related to radiator core temp. Accordingly, while batteries will experience a cold-related voltage drop- the system should carry the proper voltage once recovered from starting / glow plug load. Perhaps your car has a battery / charging system issue.
Would this thing even start at -30C unassisted?
Mike, you would be surprised how many 2wd gas or diesel vehicles are where I live and we see -30 and it's nothing special. When it's -40 then we complain about it.
The mean temperature last month was -18 with lows down to -32.
The 335d does start easily without problems with overnight temps of -31 and this was sitting for 4 days. currently the only issue I plan on addressing is the battery blanket and maybe an oil pan heater.
The covers seems to be a non issue.