S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Which Amp came from factory?

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Old Apr 5, 2022 | 01:32 PM
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2005 S550
Which Amp came from factory?

Hello everyone,

Can someone tell me which Harman Kardon Amp was installed in my S Class from the factory?

I recently bought this car and assumed a defective amplifier, but there was no one installed.
Unfortunately I don't have access to the ETK.

My chassis number: WDD2210711A031259

Would be nice if someone can tell me which part number I can use or if they are all interchangeable.

Thanks very much
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Old Apr 5, 2022 | 01:54 PM
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'71 Pinto

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Old Apr 5, 2022 | 01:58 PM
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2005 S550
Are there other part numbers I can use or just this part number will work?
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Old Apr 5, 2022 | 02:04 PM
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In comparison only other # that may be compatible is 2219008103.



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Old Apr 5, 2022 | 02:55 PM
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2005 S550
If I look on a parts site I see that this partnumber was a replacement.
Are the other partnumbers useless or wrong?

Ersetzt means replaced by

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Old Apr 5, 2022 | 03:13 PM
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'71 Pinto
I posted what MBUSA EPC shows pulling your model. 7789 & 8103 are compatible, 8004 (-810) is not. Any previous #s that 7789 actually replaced should be compatible.

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Old Apr 6, 2022 | 01:12 PM
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S500
the older the number the older the part and thus more likely broken (second-hand)
the later ones would have a later version of the software inside (mid 2010 they had a flash of a later iteration) - on some other merc models it was to try and help reception - not sure how that would work - it would still operate but what ever fun they were fixing obviously wouldn't be there
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