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Thread: BMW e46 318i M43B19 limp mode on high speed.

  1. #1
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    BMW e46 318i M43B19 limp mode on high speed.

    Hello guys,
    I’ve been having a weird problem with my manual 280k km e46.
    It’s a 318i with the m43b19 (120hp 1.9l ) that’s in a pretty good condition excluding the cooling system.
    The problem I’ve been having is that the car goes into some sort of limb mode when I’m get to~ 140km/h (80m/h). It just suddenly loses all power and the rpm start dropping slowly no matter how much gas I give it. Also the exhaust gets way louder and when I get into a complete stop and neutral the rpm’s drop to 500 and the engine shakes a lot. When I turn the engine off and on it just goes away at once.

    I haven’t really tried anything yet since my mechanic in on vacation so I was wondering if anyone here has any idea what that could be.

  2. #2
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    Is the motor light one when this happens?
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