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3.0i engine - normally loud or problem ?
Hi everyone, I own '04 X5 3.0i and '02 E39 525i. Both engines are M54 but they sound totally different. While my 525i is super quiet on acceleration
X5 engine is much louder, it sounds like a groan and I can almost feel the resonance through the steering wheel, cabin and pedals especially on higher RPMs.
I'm just wondering if anyone else had a chance to compare E39 and E53 and
notice this difference. If this is not normal, what could be the cause ?
Thank you all in advance !
Vlad
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