Air vent does not shut off

[jj]

Air vent question.Can anyone out there who owns an 850 tell me if its normal for outside air to circulate in the car while travelling.It seems no matter what i do to stop the flow e.g air mixer off . recirculate on and still air moves in.An air filter has been fitted (past owner) I don,t know if the problem was there b4.Is it normal for these cars to do and if not, Does anyone have any ideas as to what,s going on?

[guest]

It is normal for the left (next to driver's window) air vent in an 850 to always circulate fresh outside air into the car. I've read tha this is a normal thing and it happens in both my '97 850 and '98 V70.