Earlier in the week my 87 300SDL began buzzing at me intermittently.
The circumstances are that the buzzer sounds when brakes are applied,
but not all the time. I have no warning lights that come on (assuming
that all of them do work). So my question is what alert uses a buzzer
other than the seat belt or SRS? Any ideas will be appreciated.
Fuses are bad. Replace them.
If you spin them in their holders they will likely work for a while,
but invariably corrosion will cause resistance and when a large
current draw such as the brake lights occurs electrical malfunctions
such as the buzzer will manifest.
I ended up putting a *very light* coat of di-electric grease on the
ends of copper (not aluminum) fuses and problems such as these went
away for the rest of the time I owned the car.
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