Rattling sound

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Dear All,

Off late, I notice that my 318i (04) N42 giving out some rattling sound from the engine. After several attempts trying to locate where the sound comes from with 2 mechanic, at last Albert (Pandan Indah) manage to narrow down the source of the sound.

It came from the gear box. This rattling sound can be heard when we accelerate and on consistent mode of drive. It is obvious when we unwind the window and cannot be heard when window is up. Sometime sound can be heard during start up engine.

Has anyone encounter this and please share.

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[tweiboon]

Time to overhaul gearbox.

 

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Estimated cost if were to do that?

 

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BTW according to Albert, need to open up and see what actually caused.....hmmm

 

[Advanced]

Bro,

I have the same issue with my car.

Engine rattling noise during morning / cold start up but lasted for few seconds **It's quite loud** Trakkkkk....

use 10/40 with oil additive doesn;t help at all.

Worst part, my car sounds like a diesel engine now.

Other prob that might be associated with the prob:

Lost of power from **Sometimes**

Misfiring **Sometimes**

Higher Fuel consumption


Recent diagnostic shows that my O2 sensor needs to be replaced.

However, the engine is already consuming oil and there's still some leakage after some repair.

Not sure if that's the same sounds you mentioned or not but i kinda lack of confidence to start the car early in the morning now

 

[SBB]

Bro Advanced, your sound diagnose does not really sync to mine. Yes most of our E46 sound like diesel.
I do not face those Misfiring, high fuel consumption as all in good shape now even the sound still plays around.
My minor leakage done and no consuming oil......