After a long nine-hour drive from the north to Poland, Alexander thought it would be great to power up the W211 and get some coffee at the ETK Performance workshop. 

After a long trip, the  Alexandr from Ukraine had a DTC (engine code) related to EGR and no power, so we fixed the EGR problem, added a 4 BAR map sensor and increased the power to 270hp. The satisfied customer immediately made his way to the highway and continued his journey. 

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