Electrical problem
1992 BMW 525 6 cyl Two Wheel Drive Automatic 130000 miles
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Car ran fine, I stopped to pick up my son, car sat for about 10 minutes, get back in wont start. All other electrical componets work, stereo, lights etc. I jumped started the battery with no luck, checked all fuses that I could find, all good. Wondering if its the starter? The car makes no cranking noise what so ever, just turn the key and nothing. It was working fine until I got back in from picking up son, and all of the sudden, nothing, please help!

Have the battery and alternator checked out when this is done we'll go into the starting system.

There is a fusible link (like fuses) it is in the area under the rear seat where the battery lives. Look for the smaller gauge wire coming off the battery positive cable, follow it to the black shrink tube (several centimeters from the battery) and inside that is the link, inspect it. replace with part# 07-11-9-978-840 if it is cracked.