How many mm difference in tread depth is allowed on MB 4 Matic?

Hello, let's assume that the tires on the front axle of the Mercedes 4 Matic are completely worn out, while the tires on the rear axle still have enough tread (50-60%). Is that problematic for the all-wheel drive system? Or rather, if new tires are put on the front, there will be different tread depths.

Is the difference between 177 hp and 330 hp noticeable in the vehicle?

I currently drive a 2012 Audi Q5 TDI with 177 hp. Now, last week I bought a brand new Mercedes GLC400d 4matic with 330 hp. The car won't arrive for another two weeks. My question: Will I notice a dramatic difference in performance between 177 hp and 330 hp? Is 330 hp very fast?

GLC 2017 model year Nox defective, where is the cable route?

Hello everyone, The check engine light is on on my 2017 GLC. I read the error codes and found the NOx sensor was defective. Now my question. My vehicle was at Carglass in January. They replaced the windshield. Unfortunately, the window on the passenger side wasn't sealed. Whenever it rained, the floor (on the passenger…