The clunk had been reported as being normal. I think you can hear the same thud/clunk when you are in C mode going above 50mph+ and you stab the accelerator and remove it quickly under heavy engine load. I think the transmission gets confusedTried race start today on the GLA45.. can't believe it has taken me so long. Worked alright, but I paddle shifted out of 1st gear around 5000-5500 rpm and got a really loud thud/knock from under the car on the shift into 2nd gear. It drove okay after that but that can't be good. I think torque was still being managed b/w front and rear trying to minimize slip and I threw in a shift under full throttle as torque was being tweaked to minimize spin. I think I'll go to redline next time... I just didn't want to hit fuel cut.
yeah, i know theres rim protecter there on the tyre, because of that my rim got scratches now.I gotta ask - why?
Especially since you have goodyears now - if you look right at the area where you placed the C clamp (right next to the bead) Goodyear adds extra rubber there to form a lip that's the first thing the curb hits. I think other manufacturers have started doing this, but Goodyear was advertising it when I was a tire monkey. If you take the first picture, look down by the ground to see exactly why that rubber ring is unnecessary. Now, if you like the look, that's on you, but I don't see a functional purpose for it.
Then again, on the second picture, I notice just a slight scuffing on the top of the rim, so maybe it's a vehicle-awareness problem? I would recommend abusing the German over-engineering trait - the passenger side mirror has WAY more vertical adjustment range than the driver. Shift into reverse, drop the passenger mirror to look at the back tire, park along curb. Bonus points are you'll only have to do it once - the car will reset it in drive, and set it again in reverse from thence on.