This beautiful 2018 Mercedes-Benz C180 Estate came to us because the car did not drive properly and had several gearshift problems. After an extensive diagnosis, we found out that the car had been tuned by another company. However, this had not been done professionally and in the wrong way. The car had been tuned via so-called server software without a CPC module. A CPC module is required in the new generation of Mercedes cars to give them more power in the correct way. Not only did the car become slower than original after this tuning, it also stalled in the gears. This, of course, we completely fixed.