apropo de schimbarea codurilor. cica cod vechi 11617787318 4mm ,cod nou 11617800577 4.5mm . http://bavarian-board.com/forum_posts.asp?...=1&get=last http://bmwland.co.uk/talker/viewtopic.php?p=526505 plus http://www.bimmerforums.co.uk/forum/f3/bmw...rl-flaps-t5537/ BMW have made the spindle stronger by using 4.5mm rod instead of 4mm rod, as found on around April 2004 manifolds. a mea este 09.2004 Swirl flap failure. Swirl flap failure being reported on BMW diesel engines including later models, less than 10000 miles reported. When the swirl flaps fail they usually break through the metal shaft where the screw/rivet goes through, these then drops into the inlet port and either jam the valve open and the piston smashes against the valve or they drop into the engine, this can cause the piston bore to become badly scored and the piston top can be damaged from the parts embedding themselves in the piston, it's also known that parts can go back up through the open valve and into another cylinder. BMW have made the spindle stronger by using 4.5mm rod instead of 4mm rod, as found on around April 2004 manifolds.