1999 BMW 740

Electrical problem
1999 BMW 740 V8 Two Wheel Drive Automatic 99000 miles

I just replaced the alternator after it went dead on me but after installing 2 different rebuilt alternators I still have the charging warnning light on on both occasions I checked the battery is being charged and alternator is charging properly and the belt tension is tight enough what is causing the warning light to turn on and how can I get rid of this light?
May 1, 2008.

Sounds like the instrument cluster has a failure. Repost if you want to replace the cluster and get the lamp to go out.

Dr. Hagerty
May 1, 2008.