93 300sd stereo problems - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 02-01-2012, 12:01 PM Thread Starter
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Vehicle: 1985 500SEC, 1993 300SD
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93 300sd stereo problems

Hey guys back again with some stereo problems. I have a Becker stereo with the iPod hookup from the manufacturer and im getting some back cracking on the right side speakers. I was told that the amps in these cars had a problem and sometimes went and was looking to see if it's true or not. Also front to back fader seems to work but when I go to the front speakers all I get is the center one behind the mirror but when in middle seem to hear front door speakers but also no sound from four deck speakers. Baffled .please help. Thanks
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post #2 of 7 (permalink) Old 02-03-2012, 01:47 AM
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prolly the amp, it's the weakest part of the system.

97 VW Jetta TDI
90 Passat wagon TDI conversion
92 W140 300SD
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post #3 of 7 (permalink) Old 02-12-2012, 01:36 PM Thread Starter
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thanks Glen,
Now for the million dollar question, I see that some amps say from 92-99 and others say 92-93 any input the plug looks a little different.
Leo
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post #4 of 7 (permalink) Old 02-12-2012, 03:30 PM
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For $500 you can send your amp off to Radioman in San Diego for repair if you want to retain the originality of the audio system.

You also can swap the amp out, but I believe the tuner is in there as well, so you'd also have to swap out the head unit.

The FM tuner is shot in my 1993 and I am probably going to chuck the whole lot in the bin and upgrade to a full-featured and better sounding modern setup and less than $500 will get me there.
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post #5 of 7 (permalink) Old 02-12-2012, 03:55 PM
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Knock your self out with tonnes of info regarding the problem you have in the link below (pictures,links adresse's etc ), your AMP is 7 channel so to fix that at the radioman you be wasting a good 300 bucks to much of the 500,way to expensive ,Leo will look after you like he has with many of us .
The AMP is not interchangable between models 91-93 to 94-98/9 as the plugs change and the AMP itself ,you also have a Tuner in there like "Aboynton" mentions above ,it is always good to send them together to be fixed or check't up,a mini service sort off for the tuner.
Crackiling indicates AMP capacitors leaking .

http://www.benzworld.org/forums/w140...pter-w140.html

1st Picture (dusty amp) is your AMP in your car (91&93 ) / 2nd Picture is the later model 94 & up .
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post #6 of 7 (permalink) Old 02-15-2012, 12:27 PM
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Originally Posted by leo500sec View Post
thanks Glen,
Now for the million dollar question, I see that some amps say from 92-99 and others say 92-93 any input the plug looks a little different.
Leo
They used that system for two years then went to a different setup. There are some reputable shops that will repair your amp for somewhere between $200-$300 which would be worth it. The problem is with the capacitors inside the amp, they all need to be replaced. It's time consuming work.

I'd repair the existing system but that's just my preference.

97 VW Jetta TDI
90 Passat wagon TDI conversion
92 W140 300SD
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post #7 of 7 (permalink) Old 03-04-2012, 07:01 PM Thread Starter
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Thank you all, now I have to find a reputable repair shop, and seeing that I want to keep the car original.
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