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Old 12-26-2013, 02:09 AM
Jub Jub is offline
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Whining noise from radio...blaupunkt...w114

Hi everyone,

I installed an iPod through the 6 point adapter to my 1971 mercedes 250 (blaupunkt).

Everytime I start the engine, a whining noise cuts in. I suspect it's from my distributor (whines when the car moves; doesn't make a peep when the engines off).

Someone told me that it may be a bad ground, so I replaced the negative battery cable. I also installed an noise silencer to my radio.

...still whines.

I replaced my original points in my distributor with pertronix (so I removed the condenser that suppressed this noise from the diz; but still kept it as parts).

Question: how can I make this whining noise stop (can I still connect my diz condensor to the electric pertonix upgrade; any other thoughts?)


1971 Mercedes Benz 250 (Euro Spec)
1972 Mercedes Benz 250 (US Spec)
1972 Mercedes Benz 280
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Old 12-26-2013, 02:44 AM
Stretch's Avatar a shield of steel
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Have you still got the little contact points in your caps next to the wheel bearings fitted?
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior

Don't leave that there - I'll take it to bits!
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Old 12-26-2013, 04:23 AM
Dubyagee's Avatar
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Location: SE
Posts: 4,855
Whining noise from radio...blaupunkt...w114

Sounds like the alternator. They make suppression capacitors kits to eliminate the whine.

All over google.
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