Is the front lower control arm of the 2009 imported S80 2.5T made of aluminum?

I've been having a headache with my Volvo S80 2.5T. After replacing the radiator, the upper hose has come off three times, and then the lower hose came off once. Does anyone know what could be the reason? The water temperature has been normal, no overheating, and the fan is working fine.

Is the door of a 2003 Volvo S80 made of aluminum?

Is the 2009 imported S80 priced at 50,000 expensive?

Is the front lower control arm of the 2009 imported S80 2.5T made of aluminum?

Requirements for the front lower control arm.

How many control arms are there on the right rear suspension of the 2018 Hongqi H7 if the control arm and lower arm are bent?

When reversing and turning the steering wheel, there's a clunking sound coming from the right front wheel. Sometimes it also sounds like the tire is crushing gravel. What could be the issue? There's no noise during normal driving, only when reversing or turning the wheel to a certain angle. Is it due to worn-out control arm bushings or is it an issue with the steering rack?

What should I do if the half shaft of my 2009 Jetta is worn out? The subframe and lower control arm were just replaced.

I have a 2017 Haima S5 manual 1.5T, and I'm facing some issues: the car door is rusted through, there's a noise from the chassis (note: I've replaced the lower control arm, ball joint, steering gear, and engine mount but still can't find the problem), and the USB port inside the car has poor connection. Is there anyone experiencing the same issues? Any solutions?

The steering wheel is crooked 🤦‍♂️. Even after doing a wheel alignment, it can't be fixed. The mechanic said it's caused by a deformed lower control arm?