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Old 06-26-2020, 07:20 PM
Bmenegay1019 Bmenegay1019 is offline
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Mein Auto:
2012 535i knocking

I bought a 2012 535i in March. It has 50k miles. It started making a knocking noise that was very occasional. I assumed lifters since it was cold. I added top end oil additive for lifter tick and noise was less. Now itís June and the noise has gotten progressively more common. I can hear it inside the cab and outside. Sounds like itís coming from down below where the air intake goes into the motor. Itís most noticeable when idling at a stopped position. I hear it between 500-1200 rpm. Knocking becomes more rapid as RPm Increases. Oil change is not due for another 3000 miles. Level is good. Pressure is lower end of normal. Please help!
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Old 06-27-2020, 06:15 AM
wcr3d wcr3d is offline
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Mein Auto: 2013 535iX M Sport
Big difference between a tick and a knock.
The latter is not good news.
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Old 06-27-2020, 07:12 AM
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Doug Huffman Doug Huffman is offline
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Mein Auto: CPO2012 X5 35d M57(E70)
Knocking that follows RPM is not good, especially with oil observations.
Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
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