Swirl flap failed 4/12 on 2011 335d
My dealer diagnosed a fault (service engine soon lite) as a swirl failure.
Had to order a new air intake from the motherland, fly it here and replace
Car is a 2011 335d bone stock with 3,500 miles on it.
It ran fine, the light went out a few times, kept coming back, so I took it to the dealer.
8,000 miles and a cross country high speed, high temp (west Texas ) round trip
From Phoenix to Ft. Walton Beach, FL
Had a loded pistol just in case