Hello - I've attached a DIY tech article from our site that I hope you'll find helpful in troubleshooting and hopefully resolving your radiator fan problem. If you have any other questions, feel free to post a Comment just below the article and we'll do our best to give you some more details.
Mercedes-Benz W124 Cooling Fan and Shroud Removal | 1986-1995 E-Class | Pelican Parts DIY Maintenance Article
-Dmitry