I own a 1997 320i E36 saloon automatic and I m facing similar probs with gearbox. It used to getting "stuck" somewhere between shifting 1st gear to 2nd, I 've spent some 2500euros to fix it but now, after almost 3yrs, its happening again. Additionally, only E is working. S and snowflake dont work at all. Changed the oil but nothing changed. I m thinking to replace the gearbox!!!
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Many thanks