Car is a 2014 C250 AMG line 2.1 Litre Bluetec Auto. 54000 miles. The car consistently hesitates on acceleration at moderate speeds, it's as if the engine doesn't respond to the accelerator being pressed. If I kick-down the car usually accelerates rapidly as expected. It never happens at low speed around town, and nearly always happens when driving up hills. Sometimes the car will seem to jolt before acceleration picks up. A MB specialist garage (not dealer) could find no codes. I'm hoping there's a reasonably-priced fix for this. My PCP expires in October and I don't want to spend so much that it commits me to keeping the car rather than renewing. Grateful for any ideas.