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Old 08-01-2020, 01:40 PM
StealthCar StealthCar is offline
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Logic 7 DIY Amp Repair - White Goop?

I have a 2007 335i e92. My stock amplifier has water damage and I received the SOS error that has deprived me of my radio sound. I am in the process of cleaning the circuit board of the amp with Isopropyl Alcohol.

However, I found this white goop on some of the parts and I am not sure if it is a type of glue or something else. It remains wet and does not seem to dry. I have attached the pictures for everyone to see.

Does anyone know what this is? And can I just wipe it off?
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Old 08-01-2020, 01:53 PM
ctuna ctuna is offline
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That is called Heat Sink Compound and is used regularly to improve
heat dissipation on electronic devices that get Hot.
It is often between the device and metal finned blocks
of metal.
You can find it at any decent Electronics Store or Online.
Clean it off with alcohol and put a new coat on before reassembly.
The metal cover in your last picture is what conducts the heat away.

https://www.techspray.com/transistor...-sink-grease-2

Good Luck

Last edited by ctuna; 08-01-2020 at 02:07 PM.
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Old 08-01-2020, 02:33 PM
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Doug Huffman Doug Huffman is offline
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Old 08-01-2020, 06:50 PM
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CALWATERBOY TRE CALWATERBOY TRE is offline
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Thermal paste. Note the big metal part sinks heat really well....paste assists in moving heat from hot parts to heat sink, often a paste filled with metal like silver nanoparticles + other thermally conductive material.

Overheated electronics will fail, often quickly!

Arctic's popular....



Last edited by CALWATERBOY TRE; 08-01-2020 at 06:57 PM.
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Old 08-02-2020, 09:17 AM
StealthCar StealthCar is offline
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Thank you! That was very informative and I greatly appreciate it!

@ctuna and @CALWATERBOY TRE
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335i, 335i 2007, circuit board, diy, e92, goop, logic 7 amp, logic7, sos error, white goop


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