Transmission problem
1998 BMW 528 6 cyl Two Wheel Drive Automatic 126,00 miles
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a few months ago ,my son inadvertently drained the transmission fluid out of my car,hasn't run since,reliably,we added oil,but it doesn't want to shift to higher gears......3rd and 4th,when it tries,the warning light goes on,and you can't shift at all,until the light goes out....please help,i'm going nuts,thanks,smokey

Did you use the correct oil and is it at the correct level? The fill plug is on the main body of the transmission and the oil level when correct should be at that fill plug with the engine running and the temperature of the oil between 30 and 50c. The EGS (electronic gear selection) is readable for faults from the 20 pin diagnostic connector under the hood, please read them out or have them read out and respond back and we can go from there. This may require a trip to the dealer or an independent BMW repair facility.