we have a **** Subaru outback..weather got warm we open the windows and sunroof.The sme...

we have a **** Subaru outback..weather got warm we open the windows and sunroof.The smell of sulfur or rotten eggs come into the car sometimes when i pass at **mph or at **mph on the hghwy merging to get up to highway.I brought it to my dealer and they kept the car * three days and checked codes,fnp.they drove it and smelled nothing.we r getting headaches and do not no what to do.we drove *** miles round trip to our dealer WAKEFIELD SUBARU.THEY SAID THERE IS NOTHING THEY CAN DO IF THEY GET NO CODES AND FOUND NO PROBLEM.We have a lemon law in ma.I will bring it again to another dealer.This is my *rd Subaru and have had no problems,We do not want to get exfixated when we smell the egg smell we close the windows, do not no what is worse because the smell is in the car.I have had other people in my car and they smell it in the back seat.I sent an email to service a girl named tamara on June ** no response.i sent another email today at *:** am.we get head aches and tylnol is our best friend.Bought a sunroof and can not open it.We bought a new car because we did not want to have problems and all we r going to get FOUND NO PROBLEM.NOT EXCEPTABLE.