Yesterday, the M5 entered "Engine Failsafe" mode throwing several Peake codes (6B and E6) leading me to believe that one or both of the TPS sensors are shot. Obviously, I will be replacing both as I've heard it can be a difficult job. I've read that the tight fit with the philips screws which secure the TPS assemblies can be troublesome. Does anyone have the definitive solution for removing the screws? Thanks.