On my 1983 300SD the battery dash light stays on while I am driving but goes out when the engine is turned off. The brake sensor and emergency brake lights stay on with it at first then go out while the battery light stays on while I am driving. I checked the v-belts and they are tight. Car starts ok and the battery seems to be charging.The following parts have been replaced:

New alternator/voltage regulator is 3 months old.
Starter/solenoid is 2 years old.
$100 battery is 1 year old.
All of the glow plugs are 2 years old.

Could this be a relay, wire or fuse problem? I did a search on this forum but could not find an exact match to my situation.

Thanks for the help!

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1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

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