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Thread: Bmw 118i Engine N46B20 Strange knock sounds from the Engine bay in RPM range 2k-3k

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    Aug 2017
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    BMW E87

    Bmw 118i Engine N46B20 Strange knock sounds from the Engine bay in RPM range 2k-3k

    Hi, Guys !
    I'm owner of BMW 118i N46B20 Enginge. Before two months I've heard a strange noise from the Engine bay and I decided to check with ISTA diagnostic.
    ISTA shows me error code for bad knock sensor (DME 002E68 Knock-sensor signal 1). I've replaced the sensor and delete the error code, but this doesn't resolve the problem.
    The knocking sounds are between 2k and 3k RPM only.
    I've created a video here is the link - https://youtu.be/cnrOBSTH4Sc
    I will be very appreciated if someone can help me to investigate and resolve the issue.
    Last edited by Aleksand; 02-21-2021 at 03:28 AM. Reason: Additional wrong text
    BMW E87 118i
    Engine: N46B20
    Year:2005
    Gearbox:Auto

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