Hello, I have the following problem with my 850 R: When I switch from the suction cup to the turbo operation, i.e. the turbo indicator in the middle, the car squats once when the air conditioning is switched on before it goes into the turbo operation. However, it does not do this when the climate is switched off. Last year, the climate compressor was replaced by Volvo because the old one was always stuck. This summer, the turbocharger was replaced. Has the jerking, coughing, something with the climate or the climate tax is the air conditioning controller 9166549 W630K. Is this behavior known to be a disease and how can I fix the problem? Thanks for the info. VG