BMW X5 Fan Failure Leads to Engine Overheating Crisis

I had a similar issue with my 2019 BMW X3 last year. The symptoms were exactly the same, overheating engine and radiator fan not working. Turned out the speed sensor was defective, which meant the fan wasn't getting the signal to turn on when needed. The repair wasn't super complicated, but it's definitely not a DIY job. The sensor needed replacement, and they had to bleed the cooling system properly afterward. I'd say it was a medium-serious issue, not something you want to ignore as it could lead to engine damage if left unchecked. My advice would be to get it checked soon. These cooling system issues on BMWs are pretty common and need to be handled by someone who knows the brand well. Make sure they use genuine BMW parts for the repair. I've found that dealership techs or BMW specialists are your best bet for these specific issues. Hope this helps with your decision.

Hey, thanks for sharing your experience! My X5 ended up having a similar problem with the fan sensor. Really helpful to know I wasn't the only one dealing with this. Just curious, do you remember roughly how much you ended up paying for the whole repair? And has everything been running smoothly since, or have you noticed any other cooling-related issues? Just want to know what to expect down the road.

Hey there! Glad I could help with sharing my experience. Since you asked, yes, everything's been running perfectly fine since I got it fixed. The total bill came to 250 € for the speed sensor replacement, which honestly wasn't as bad as I initially feared. The mechanic did a thorough job, fixed the radiator fan issue completely, and I haven't had a single cooling problem since then. I've put quite a few miles on my X3 since the repair, and the engine temperature has stayed exactly where it should be. The fan kicks in right when it needs to now, it's actually kind of satisfying to hear it working properly! Just make sure you're getting those regular maintenance checks done, and you shouldn't have any more surprises with the cooling system. Trust me, once it's fixed properly, you can put this worry behind you. My X3's been running like a dream since that repair. Money well spent, if you ask me!

Thanks so much for the detailed follow-up! I actually just got back from getting my X5 fixed yesterday. The mechanic I found did a great job, turns out you were spot on about the sensor. Mine cost a bit more, around 300, but they also did a full cooling system check while they were at it. Honestly, such a relief to have it sorted. The fan's working perfectly now, and the engine temperature's staying right where it should be. No more stressing about potential overheating! The mechanic showed me everything they did, which I really appreciated after my last bad experience. You were right about getting it checked quickly, glad I didn't wait around on this one. Thanks again for helping me figure this out. Makes me feel better knowing your X3's been running smoothly since the fix. Here's hoping my X5 follows suit!