03-02-2023, 02:29 PM | #1 |
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Fan whistling noise - 3 days out of warranty :-(
Anyone else had issues with the fans? 330i (2020), 3 days out of the official warranty...heating is set on AUTO and as soon as the fan kicked in, after about 0.5 miles, I notice a whirring/whistling sound. Everything works, it's just the sound. I had it serviced, MOT'd, end of warranty checked 2 weeks back.
It only happens at mid-speed, and isn't there at high speed (so if you put it on manual it happens mid way up the scale). Weird. Checked underneath the bonnet, can't see anything stuck so am stumped. I have a 2 month extended warranty from the non-BMW dealership I got the car from so hopefully it's covered, but still need to pay my local BMW dealer £130/hour for diagnostics |
03-02-2023, 04:37 PM | #2 | |
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03-03-2023, 01:35 AM | #3 |
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Yep sounds like they didn't set the ventilation to recirc before they hanged the cabin filter, same thing happened to me. Take it back to them and tell them to fix it as they broke it. The outside air intake flap needs turning back the position it should be in, there is a tsb telling dealers about this but they appear to ignore it.
If not, you can fix it yourself if you search for my past posts but ultimately the problem wasn't there before they touched it so they should fix it. |
03-03-2023, 07:09 AM | #4 |
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Possibly unrelated but same problem with my F30 which was a resonance in the air conditioning which is cured by a re-gas. G20 has some weights added to the pipes now to prevent this, but I am suspicious. Took me ages to work this out
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03-03-2023, 09:48 AM | #6 |
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That's what happens when they install the cabin filter without setting the flap to closed first by putting it in recirc.
Honestly you need to just go back to them and tell them to fix it as they broke it. Same thing happened to me but I fixed it myself |
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03-03-2023, 12:58 PM | #7 |
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I'm taking it back, will see what they say. I'll make it clear again (politely obvs) when I get there that it only happened since they serviced it and replaced the filter.
Can't get to them though for over a week, so I might try and sort it myself If I get some time over the weekend. Cheers for the advice + guide on that other thread |
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03-09-2023, 03:49 AM | #8 | |
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M240i - Thundernight Metallic - Cognac Interior - M Technology Pack - Technology Plus Pack - Comfort Pack - HK - Driving Assistant - M Adaptive Suspension - 19" 893 M Double-spoke Bicolour Alloy Wheels - Aluminium Rhombicle Interior Trim
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