Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi my name is ***** ***** I will be happy to assist with this today.In some cases I may need more info to assist better.I apologize for any delay.
When you say it pulls slightly is this when your taking off from a stop the brake pulls to one side?
Let me know so we can continue,thanks Pete.
O.k.,so just to be sure it feels like the vehicle is moving when the brake is held and is slowly moving when the brake is applied?
Let me know,thanks Pete.
O.k.,with the hill assist not wanting to release this may be an issue with a brake position switch not sending a signal that the brake is applied and released properly.This can cause the wanting to move forward fell or move when brake is applied as well as keep the vehicle from taking off properly on a steep hill when the brake is released.
I would have the vehicle re checked for any codes set to see if anything new has set in any of the computers.There may be a new fault code set for one of the brake sensors at fault needing replaced other then the one that was already replaced.
The sensor signals will also need checked using a scan tool or dealers sds machine to see if one or more of the sensors are sending an incorrect signal needing replaced.
Usually this is a brake pedal sensor at fault or brake pressure sensor in the brake booster needing replaced but I have seen issues with the anti lock brake hydraulic unit as well needing replaced.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.
YOur welcome.Let me know if you need anything else and feel free to rate my help as this is how I receive credit for my time.