BenzWorld Senior Member
Date registered: Jan 2006
Vehicle: 07 E63 AMG Black on Black
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RE: Knocking Noise When i Accelerate 2003 E500
Sounds more like pre-detonation rather than a bearing. The fuel additive will help clear the engine of combustion chamber deposts, but would really have nothing to do with an oil change interval miss.
You may want to have the dealer check the function of your timing and knock sensors. If the knocking noise is present at start up, you may have a lower bearing going bad (major problem).
In any event, have the dealer certify your computers management of the knock sensors. If you blow a hole through one of your pistons in the future, the dealer will be on the hook for the new engine.