F15 thrust bushing

[NevoBMW320i]

Greetings, everyone. I have installed a new thrust bushing to eliminate a persistent banging noise from the steering rack while traversing tiny bumps, speed humps, and uneven terrain. The vehicle performs really well on standard roads and at typical speeds; it is a delightful automobile.
Following the replacement of the bushing, the banging seems to have intensified. It may just my imagination, but it has not improved, to put it succinctly.
This occurred in a non-BMW service facility.
I brought it to an authorised BMW repair facility, since they had availability, and they informed me that BMW does not provide a repair kit for the thrust bushing, which would likely need a new rack from BMW.
Is this accurate?
Has anybody substituted the thrust bushing on the F15 steering rack, and is there a corresponding BMW part for this component?

I have heard that adjusting the tension is necessary to eliminate the banging while maintaining the smoothness and centring of the steering wheel.
Any assistance would be much appreciated. Thank you.

[MidnightMarauder]

I am uncertain if a thrust piece is available for that vehicle; it is only produced for ThyssenKrupp racks. I have only installed it on the X3 and 3 Series.
In the absence of specialised tools, it becomes a process of trial and error to eliminate play without excessively tightening, which would hinder the steering's self-centering ability.
If it is not a Thyseen rack, I guess you will either need a new rack or need to submit yours for reconditioning.

[NevoBMW320i]

Thank you for your prompt reply on this matter. I may repurchase the three-pronged bolt tool, adjust the bush, and repeatedly drive and modify it to see whether it yields any improvement.

Regrettably, I cannot afford a new rack.

I examined the position of the bushing on the rack, and although it is somewhat accessible under the vehicle, it is insufficient for applying enough torque. That is why I entrusted it to a garage for completion. Is there a manual available for obtaining enough access to the rack from under the vehicle, enabling me to attempt tightening the bolt/thrust bush prior to commencing savings for a new rack?

This presumes that the bushing is responsible for the banging noise over minor irregularities. The MOT was exemplary, and a recent inspection by a BMW expert revealed no irregularities, except from a negligible amount of play in the 'braking arms,' whatever that entails.

Thank you.

[MidnightMarauder]

Minimal torque is required for tightening if access is sufficiently convenient. Is there any banging sound when you shake the steering wheel when stationary, especially with the engine turned off?

The braking components, often referred to as torsion arms, are the suspension arms extending from the hub to the front of the subframe. Any movement in these components may result in noise.

[NevoBMW320i]

Indeed, there is a faint banging sound emanating from the centre of the bonnet when I oscillate the steering wheel while standing outside the driver's door.

I will attempt to identify the source of the banging by having someone crank the wheel while I am positioned underneath the vehicle.

There is a little knocking sound when I jolt the steering wheel when it is switched off, albeit it is not particularly loud or significant.

I will consider replacing those arms with BMW components to see whether they are the source of the banging sound.
Thank you once again for your assistance.