Dear Opel specialists have (unfortunately) abolished my reliable MERIVA A (2009) 5 weeks ago and exchanged a more modern MERIVA B (2013) from an ex-colleague – and apparently caught a Monday car. First for 3 weeks everything was fine, then what squeaked in the engine room – which meanwhile turned out not to be a broken LiMa or WaPu, but as a defect on the membrane in the valve cover, which apparently creates vacuum and a squeaking noise. n traffic light now suddenly: a kind of slight blow at the rear and 2 warning lights on: ESP and tyre symbol. After that the car did not pull right anymore, feels like a grinding hand brake. CODE 94 lit up when the engine was switched off at short notice.After restarting and a short drive, everything was fine again for 10min., but then it came back the same way. Because this obviously wasn’t enough, the engine control suddenly also lights yellow Are there connections?? ate by chance on the same afternoon 2 damages occur…?(CODE 94 is obviously an error in the so-called “Hallgeber”, which however has hardly anything to do with the brakes or the tires???? I’m pretty finished at the moment – what should/can/must be checked/repaired??? Thank you for relevant information. Photo of the current situation