I have had my new M3 RWD 2023 for 3 months, and this knocking sound from the front left wheel is also driving me crazy. I have taken it into 2 different service centers, they have performed a front end "retorque" of all suspension components, they messed up my alignment, fixed my alignment, but my noise is stilll there. It reminds me of sway bar links being worn in my old SAAB, but I doubt it is that simple. The odd thing is, when I go for a ride in the passenger seat with the technician, it is very hard to hear this noise from the passenger seat. Almost makes me wonder if having weight in the right side of the car balances out the suspension and lessens the noise, or if it is just extremely localized. It makes me hate driving the car, and I am already considering selling it and getting something with good suspension, such as my old Mazda. Never heard a single bad sound from that car's suspension no matter the road. I feel like the car is going to fall apart every time I am going over even minor bumps.