Hesitation on acceleration

Doubt it's a sensor since you didn't get a code. Check for vacuum leaks, dirty air and fuel filters, bad fuel pump where the fuel pressure is just enough to let the run but not increase the fuel volume when you need to accelerate. You need to see the datastream for fuel trim levels as well.

No Mercedes that I've ever owned (7 of them) would smoke the tires they start slow and then pick up, don't worry. Starborder