Sedge 0 Report post Posted May 5, 2012 Hi, E39 525i 2001 model. Can't get the recycling switch to shut off outside air. Is there a seperate servo or something. I only get outside air so can't stop truck fumes etc etc from entering cabin. Has anybody had this problem and if so is there a solution? Thanks, Sedge Quote Share this post Link to post Share on other sites
hybrid 1043 Report post Posted May 5, 2012 I have this issue too. I think its something to do with the seal on the recirc flap getting old. Its so annoying and one of my pet hates in any car. He'll even my e30 works better than the 5 series. Im yet to do something about it sorry so can't help. The flap is controlled by the climate control module over MBUS and it has its own stepped motor. Quote Share this post Link to post Share on other sites
hybrid 1043 Report post Posted May 6, 2012 Actually, here is how the whole system works I'm gonna give mine a good going over as well now that I know how it works properly. hope this helps (attached) 60087943_BMW_E39_Integrated_automatic_heating_and_air_conditioning.pdf Quote Share this post Link to post Share on other sites
