Hello C4 GRAND PICASSO 1,6 HDI 109PS BJ2010 My C4 stopped on the highway, there was the error message stop OIL pressure too high or too low (no more evidence was too fast), no more vehicles rolled out and stopped, then got out and under the car was a lot of coolant, oil is available enough so no oil loss, car was towed Diganose from the Öamtc was just engine damage, I did a video many t someone can say what it could be exactly, engine starts quite normal. Thanks a lot in advance See video in appendix