S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

92 300SD W140 Radio/cluster/ F/E

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Old Jul 10, 2010 | 09:44 PM
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1984 300SD W126 & 1992 300SD W140
92 300SD W140 Radio/cluster/ F/E

As an owner of an 84 300SD I may have made a mistake to think the W126 longevity and hardiness could pass on to other .
I bought a 92 300SD on a W140 chassis. It has 181k mi on it and was traded by the original owner in June 2010 for a new car. It has extensive dealer maintenance records with original dealer invoice for new block at 45kmi. Many other things along the way were repaired/replaced or maintained.

Question: Does the following sound familiar to anyone? I have scratchy speakers, when I engage the indicator I see a momentary flash and flick of the gauges on the cluster, the battery will die out after about 3 days and requires constant charging. All other electrical items work

Also a little vibration on the front end - maybe out of balance tires.

Does anyone have any ideas on the electrical.
Thx
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