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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > 2018 440ix MPPSK rattling in sport mode
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      09-12-2017, 09:45 PM   #1
RA123
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2018 440ix MPPSK rattling in sport mode

I took delivery last month of a 2018 440ix cpe with mppsk installed at the dealership. The car is flawless except for a rattle that seems to be coming from the passenger side of the car at around 2000rpm in gears 3+. It only happens in sport mode, but if I change mode or place the car in DS mode the rattle disappears. It happens at a certain loud humming of the exhaust which seems to be causing vibrations through the car body.

Does anyone else experience this with their mppsk?
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      09-12-2017, 09:49 PM   #2
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Quote:
Originally Posted by RA123 View Post
I took delivery last month of a 2018 440ix cpe with mppsk installed at the dealership. The car is flawless except for a rattle that seems to be coming from the passenger side of the car at around 2000rpm in gears 3+. It only happens in sport mode, but if I change mode or place the car in DS mode the rattle disappears. It happens at a certain loud humming of the exhaust which seems to be causing vibrations through the car body.

Does anyone else experience this with their mppsk?
I have 340i with MPPSK mine came on the car it was only 50 miles on it when mine did the same thing, dealer said it's a bolt that hits against the exhaust they fixed it quickly for me
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      09-12-2017, 10:05 PM   #3
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thanks for the reply. I took it back to them at 150 miles and they told me there were some bushings that needed to be replaced. I picked up the car after 24hrs. Whatever they said they did, changed nothing. I will email my SA and ask him about it. I am going to go there to get some wheels installed.
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      09-13-2017, 10:08 AM   #4
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This seems to be fairly common and fairly easy to fix, are dealers not sending this up the flagpole to get the PIA team to check... im sure they enjoy charging the warranty work hours but still
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