Bad Cooling Fan Relay Symptoms - In The Garage with CarParts.com. The cooling fan relay controls the fans that help cool an engine's radiator. Learn the symptoms of a bad relay in this article. Step 1 - Check the fan switch relay. The radiator fan switch relay may not be supplying power to the fan. If necessary, a replacement relay costs around $20. There are three ways to check for a bad terminal. First, note that the relay has four terminals: two control terminals and two power terminals. AudiWorld Member. Thread Starter. Join Date: Mar 2002. Posts: 146. Likes: 0. Received 0 Likes on 0 Posts. Main Radiator Fan Relay. I am stumped. While doing the timing belt, I discovered that at some point prior to my ownership, the main electric radiator fan had been unplugged at its connector near the power steering reservoir. jscrick Discussion starter. 8 posts · Joined 2022. #1 · Sep 15, 2022. Does anyone know where radiator fan motor relay is located on 2011 328i. It should be near the power steering reservoir but I don't see it. Thanks. Reply Quote. 1 - 12 of 12 Posts. Markst. 1119 posts · Joined 2018. #2 · Sep 15, 2022. 1. Reply Quote. J. jscrick Discussion starter. Vay Tiền Nhanh Chỉ Cần Cmnd Nợ Xấu.

radiator fan relay location