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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > N43 rattling noise



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      11-28-2019, 02:40 PM   #1
dstihl
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Drives: E90 LCI 318i
Join Date: Nov 2019
Location: Hungary

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N43 rattling noise

Hey guys, I really need your help.

I have bought an E90 LCI 318i recently. (2009/09, N43B20A)
When the engine gets warm, a rattling noise occurs, which is louder on higher revs and with warmer engine.

Here is a video on it:


If I speed up, and put it in neutral, it slows down and goes away, but comes back right when I put it back in gear.

The following have been replaced recently: plugs, coils, injector #2, nox sensor, chain tensioner

My current error codes:
0029F4 Catalytic-converter conversion
002A26 Catalytic converter, conversion in startified charge mode
002EF7 Map thermostat, activation
0030C1 Engine-oil pressure control, static

Any idea?
Appreciate 0
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