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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > Help! WTF is this buzzing noise? (Solved! Valvetronic failing)
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      11-18-2018, 12:05 PM   #1
badbread
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Help! WTF is this buzzing noise? (Solved! Valvetronic failing)

Engine off, just went to get something out of the car and heard this coming from under the engine cover. Haven't tried to start it yet, anyone have any clue?

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Last edited by badbread; 11-19-2018 at 09:56 AM..
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      11-19-2018, 04:56 AM   #2
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Replying just because I really want to know as well. Has it continued to happen??
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      11-19-2018, 05:12 AM   #3
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OK, I have heard a lot of weird noises from my N55 also but that one beat the all LOL... Coming from the middle of the engine?
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      11-19-2018, 09:56 AM   #4
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Yeah, unfortunately i'm pretty sure it's the valvetronic system... If I unplug the valvetronic system the noise stops. Swapped my stock DP in last night, service appointment on Wednesday, here's to hoping my CPO covers it.
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      11-19-2018, 10:42 AM   #5
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How many miles on your car now.?
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      11-19-2018, 11:00 AM   #6
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Quote:
Originally Posted by Pray for Mojo View Post
How many miles on your car now.?
~67,000

Another (PWG like myself) MHD member in the WhatsApp chat also had his valvetronic system start failing last week... Wondering if any more are going to start popping up..
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      11-19-2018, 11:06 AM   #7
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Hope not, looks like the system is common on PWG and EWG cars. All PN on real OEM are the same between my EWG and a PWG car from 2013.
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