1. Engine running hot. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
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.
Because the radiator fan often draws so much current, there is a relay that powers the radiator fan. Of course, this relay can get damaged, causing the radiator fan not to start. The fan relay is often located in the engine compartment fuse box, but the best way is to check your repair manual to find out where it is located.