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Thread: Air pump M119

  1. #1
    Dag
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    Air pump M119

    If the air pump was running all the time - what would be the effects of that? Would the engine run lean? Would the pump die?

    M119.974 / 500E

  2. #2
    .036 Hoonigan™
    E500E Boffin
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    Dec 2008
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    Boise, ID, USA
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    Re: Air pump M119

    Quote Originally Posted by little_e View Post
    If the air pump was running all the time - what would be the effects of that? Would the engine run lean? Would the pump die?

    M119.974 / 500E
    The pump will wear out prematurely, and the lambda control would go nuts due to the unexpected air.

    You can disconnect the pump for now, if the car is USA-spec you'll get a Check Engine light after a few restarts but that's about it.


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