A/c drain tube had not been able to drain since owning the vehicle since november 2009, due to a flawed design, henceforth i was ill every time i drove the vehicle with the a/c on. this last ill driven 1 hour and 30 minute day, 7 july 2017, i was terribly nausea, extreme headaches and exhaustion lasting through to 9 july 2017. had it been a longer drive, i am sure i would have had an accident as i struggled to drive home and put myself into bed. this flawed design was repaired, as all vehicles should be inspected for the safe and welfare of the drivers and passengers.