Hi I have a problem with my E 220 estate. It’s a 2019 car. I have noticed that my brakes are not engaging properly for the last few days, particularly at low speed/low gear. When I am approaching a roundabout for instance if I engage the break it doesn’t stop the car immediately. It can roll forward for a couple of seconds. I occasionally feel with a stuttering sensation in the pedal. Has anyone come across this before? My mechanic had a look but could not replicate my problem. He mentioned something about a possible software issue. It’s going in for a service as it’s due. Any thoughts on this issue brakes seem ok on higher speeds ?