1.8 CGI tuning problem...need help!
The technician said that it is not possible to increase the performance in this model as he has tried a remap a few without success.
My model is a 2011 E200 AMG W207 convertible 1.8 CGI, the ECU is Siemens brand.
Has anyone here had the same experience and if so have you been able to remove the restrictions on the ECU?


