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Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications 2020 330 xdrive - weird ticking from transmission? Help?

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      07-07-2023, 03:58 PM   #1
Cisco_engineer
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Drives: 2020 330i xdrive
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2020 330 xdrive - weird ticking from transmission? Help?

Hey guys,

Having this new thing happen on my G20. When the car warms up to operating temp and gets on the hotter side (outside temps) I find that when I stop, shift into reverse and start rolling I get a weird rotational ticking sound coming from seemingly the front of the transmission. This sound only occurs when I press the brake pedal and only for a moment. Same happens when I shift back into drive, start rolling forward …press brake pedal and bingo…short ticking. Sounds like a possible failing torque converter ? I’m assuming there is some disengaging happening when I press the brake pedal and come to stop on a very slow roll?

Any ideas ?
Thanks.

Link to video.

https://share.icloud.com/photos/0e9f...3p7bJAs8W4Xa6g
Appreciate 0
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