英国论坛
小弟请教，如题。
回帖
common failure而已，如果你的还没坏其实没必要搞掉。
回帖
话是如此，一旦挂了，turbo, engine 就都挂了。。。。。
回帖
回帖
楼上的我们是在说同一个东西么？不只是影响mpg那么简单吧。。。。。。
Back in 2000, BMW/Pierburg made a decision to manufacture diesel engine with swirl flaps made from steel. BMW swirl flaps commonly fail in such a way that they either: drop an affixing screw and or the upper section of the spindle. If this does not stop the engine, the remaining swirl flap will be falling completely into the engine. The outcome of such failure is not pretty in the slightest. Diesel engine’s piston cycles at at least 60 revs per minute, so an ingested metal piece fallen off the butterfly flap will be slammed by the moving internal components. Most often one or more piston ends up being severely damaged along with several valves, an injector and the cylinder head, with possible collateral damage spreading to the turbo as well.
回帖
楼主，最好还是做了吧，这样安心一点，因为你不知道，什么时候那12个小螺丝（铆钉）就掉了，然后发动机就挂了。我是自己做的，弄了一下午，顺便把进气歧管的积炭给清了。效果很明显，原来有的怠速和1750rpm转速不稳的情况一并消失。
回帖