The highs on the left front speaker of my 91 300e go out and come back when I increase the volume. Could his be possibly due to the faulty capacitor strapped to the speaker? Does anyone know what the replacement capacitor is. The speaker sounds fine except for this intermittent loss of high end.

Thanks, Dave

More than likely it is not the cap...It is more likely the voice coil in the speaker or in other words the speaker itself...

__________________
83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html

I've never seen a non polarized eletrolytic capacitor go bad. Plus even if somehow the electrolyte did manage to leak out, there is no way for it to have an intermittent connection.

One of two things is happening here. Either if this a dual cone, or coaxial speaker, the solder joint connecting the tweeter could have gone bad. Take a soldering iron and reflow the joint, dont add solder unless you have too, it makes a mess.

Now are you sure the speaker loses just the high end, and not the entire thing?

Take care,

George

__________________
George Androulakis

Former Mb's:

1990 500sl R129 - 76k Original Miles - New project - Follow the saga http://90r129.blogspot.com/
1990 190E 2.6 148k mi (sold)
1989 420 SEL 246k mi (sold)
1995 C220 175k mi (sold)
1992 190e 2.6 74k original miles (sold)
2000 c230 Kompressor 122k miles (RIP)
1996 C220 149k mi (sold)
2000 C230 Kompressor Sport 127k (sold)

Current Cars:

2009 Mercedes c300 4matic
2006 Mercedes s430
2005 Jaguar XJR
2003 Cadillac Escalade

Many thanks. It could actually be the entire speaker whichcomes back on with an increase in volume. Possibly a weak connection somewhere?

Dave

is this a stock speaker? Open the cover possibly take it out and put it back in...could be connection.

__________________
99 C43
98 S420
99 C230K
01 C240

Wait.... the speaker comes and goes with the turn of the volume.... Is this with a becker radio, with the stock fader switch.

Does it crackle at all, or can you get it to come and go based on pushing on or jiggling the volume knob....

I'm thinking the potentiometer on the volume control is going bad.... Also are you SURE its just the front speaker, and not that side of the car front and rear?

Take care,

George

__________________
George Androulakis

Former Mb's:

1990 500sl R129 - 76k Original Miles - New project - Follow the saga http://90r129.blogspot.com/
1990 190E 2.6 148k mi (sold)
1989 420 SEL 246k mi (sold)
1995 C220 175k mi (sold)
1992 190e 2.6 74k original miles (sold)
2000 c230 Kompressor 122k miles (RIP)
1996 C220 149k mi (sold)
2000 C230 Kompressor Sport 127k (sold)

Current Cars:

2009 Mercedes c300 4matic
2006 Mercedes s430
2005 Jaguar XJR
2003 Cadillac Escalade

Many thanks. It is definitely the front right speaker only. Sometimes stays on , sometimes I need to jack volume up to get it to turn on. Could be the radio or a speaker connection. I removed the speaker and all looked good.

Thanks again

Dave

Something, most likely inside the radio is loose electrically. Does jacking up the volume cause it to come on barely, or at the same volume of the other speakers? I'm thinking maybe a connection is corroded somewhere and exibiting properties of higher electrical resistance?

Take care,

George

__________________
George Androulakis

Former Mb's:

1990 500sl R129 - 76k Original Miles - New project - Follow the saga http://90r129.blogspot.com/
1990 190E 2.6 148k mi (sold)
1989 420 SEL 246k mi (sold)
1995 C220 175k mi (sold)
1992 190e 2.6 74k original miles (sold)
2000 c230 Kompressor 122k miles (RIP)
1996 C220 149k mi (sold)
2000 C230 Kompressor Sport 127k (sold)

Current Cars:

2009 Mercedes c300 4matic
2006 Mercedes s430
2005 Jaguar XJR
2003 Cadillac Escalade

If you really want to diagnose the problem swop the speaker with the other one and notice the problem will follow the speaker....

__________________
83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/showthread.php?t=125099