BMW iX3 Wiper Malfunction: Fix & Cost Guide Needed

Hey there! I had a similar issue with my 2019 BMW iX. The unusual wiper activation and complete failure sounds exactly like what I experienced. In my case, it turned out to be a faulty connection in the wiring harness near the wiper motor, plus some corrosion on the plug connector. It wasn't just a simple switch problem. The mechanic had to replace the entire wiring harness assembly and clean up the connector points. It was actually quite serious since bad wiring can potentially affect other electrical systems too. The repair took about 4 hours at the shop, and they had to run complete diagnostics to make sure no other systems were affected. My suggestion would be to get it checked at a certified dealer. With these electrical issues, it's better to have someone who really knows the system do a proper diagnostic. The error code usually points to the general area, but finding the exact problem needs proper testing.

Hey, thanks for sharing your experience! I had something similar with my iX3 just last year. Your wiring harness issue sounds exactly like what happened to me, really makes me curious about how much you ended up paying for the whole repair? Did you have any other electrical problems pop up after getting it fixed? By the way, I started noticing weird stuff with my door locks right after the wiper problem got fixed, but that might've been unrelated. Just wondering if you experienced anything like that?

Hey again! Glad to give you an update on my repair experience. After getting it checked out by the mechanic, it turned out to be simpler than my initial wiring harness issue, just a faulty cable connection that needed fixing. The total came to 95 € and honestly, it was money well spent. The wipers have been working perfectly since then, no unusual activations or failures. To answer your question about other electrical problems, nope, everything's been running smoothly since the repair. Haven't had any issues with door locks or other electrical components. My previous wiring harness concern turned out to be unnecessary worry, sometimes the simplest explanation is the right one! If you're having door lock issues, I'd definitely get those checked out separately. From my experience, it's better to deal with these things early before they become bigger problems. But unlike the widespread wiper issues we've seen with these models, door lock problems aren't something I've heard much about in the iX community.

Thanks for all the help! Just got back from the mechanic and thought I'd share what happened. The repair went much better than expected. Turned out my problem wasn't as complicated as yours, just a loose connection and some dirt buildup that was messing with the wiper system. The mechanic cleaned everything up, secured the connections, and ran a full diagnostic check just to be safe. The whole thing took about two hours and cost way less than I feared. He even showed me exactly what was wrong, which was refreshing after my previous bad experiences with mechanics. The wipers are working perfectly now, no more unusual movements or complete shutdowns. I'm really glad I asked for advice here before assuming the worst. It saved me from unnecessary stress and probably some money too. And you're right about the door locks, I'll get them checked out next week just to be on the safe side. Thanks again for helping me out with this!