This seems to come up a bit on the VW TDI forums when discussing winter radiator blocking.
One group says to cover everything but leave the opening that feeds the intercooler open and the other group says they cover all openings in the winter and haven't had any issues.
Obviously, there's a point where the intake air is cold enough that an intercooler isn't really needed but where is that point?
Living in an area where -40C is not uncommon and -15C to -30C is the regular temperature range over the winter I wonder if blocking off the intercooler opening isn't a good idea, at least for the coldest few months.
One group says to cover everything but leave the opening that feeds the intercooler open and the other group says they cover all openings in the winter and haven't had any issues.
Obviously, there's a point where the intake air is cold enough that an intercooler isn't really needed but where is that point?
Living in an area where -40C is not uncommon and -15C to -30C is the regular temperature range over the winter I wonder if blocking off the intercooler opening isn't a good idea, at least for the coldest few months.