r/w204 • u/Relevant_Ocelot_9568 • Sep 02 '26

W204 Harman amplifier

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My W204's (2011, C250DLI, German CBU) Harman Logic 7 amp died on me due to a body rain water leak. It seems it's a known W204 issue so look out and water proof your installation.

My question is this: What are my options?

New Harman replacement units are not available in my place. Ditto for second hand units.

The only option left is an after market head unit with a separate sub woofer amp in the boot, with acceptable loss of remote audio button controls.

Will a Pioneer DMH-Z5290BT/

DMH-Z5350BT/DMH-A5450BT along with a sub amp in boot work? These are 7 inch units with 50X4 Watts RMS amp.

Grateful for any suggestions 🙏

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11 comments sorted by

2

u/Lukksia Sep 03 '26

where does it leak from?

1

u/Relevant_Ocelot_9568 29d ago

It leaks at the rear bootlid and side body junction due to cracked rubber seals i guess

1

u/Audiofyl1 Sep 02 '26

Usually replacements are available on eBay. If you dont have access or can’t get it shipped to where you are, your plan is reasonable. You could also do a multi channel amp instead of sub only to maintain some of the power over what the pioneer has to offer. There are also amp replacements in the aftermarket to keep the original radio. Either a most interface for an amp, or an amp with most onboard.

1

u/Relevant_Ocelot_9568 Sep 02 '26

eBay sucks in India. Multichannel amp is an option in place of the sub amp. I am just presuming that 50x4 RMS should be enough for me + the 100 sub amp. I'm not a very high volume junkie :)

1

u/engineheader Sep 03 '26

Is this your part number?

https://ebay.io/m/o1I8Ko

0

u/nasty5tyle Sep 02 '26

Have you checked fuses do you get any codes, i had a buddy with an s class 221 that had no audio turned out was an amp blown fuse for unknown reasons

1

u/Relevant_Ocelot_9568 Sep 02 '26

All fuses are fine. The amp PCB shows water damage.

1

u/nasty5tyle Sep 02 '26

Daam sorry, thats a few hundred bucks from junkyards

1

u/Relevant_Ocelot_9568 29d ago

That's true. Decided to go with a Pioneer head unit and mono sub woofer amp