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post #1 of 1 Old 15th April 2018, 01:05 AM Thread Starter
VelvetBlueFreak
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Exclamation 540i gearbox grumble?

Hi newbie here, I should probably make a thread on my project daily 540i but this is more important right now

My 97 540iA has decided to develop a grinding noise when under loading. When you put your foot on the accelerator at cruising speeds there is an awful grinding noise from the transmission. The revs also fluctuate slightly. Once your foot is either lifted off or pressed harder into the pedal the noise stops. Only happens when care is at running temp
It used to only happen at like 50mph in 5th and 30mph in 4th when the car needed to change gear but its not happening more often in a wider range of speeds and gears.
The best way to grasp what I'm saying is by listening to the video
In the video I have my foot on the pedal maintaining a constant speed which causes grinding. Im lifting my foot off and on to make the grinding more noticeable. Pressing too hard results in the car changing into a lower gear which is what I do in the end of the video.
Thanks for your time

https://youtu.be/eYIAO_gXrqA
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540i , e39 , noise , trans auto

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