MERCEDES DIESEL TUNINGMercedes diesel engines are very robust and capable of nice increases in torque. We tune the 2.1 & 3.0L diesels engines from 2009 to present. PE Stage 1 Tune Typical results 30-60bhp & 70-120nm Our PE custom ECU software has been calibrated to give the best performance and driveability while increasing mpg with OEM reliability. With our ECU tune the Mercedes diesel engines produce brilliant performance and great MPG improvement with 3-5mpg improvement when driven economically.From £300 BOOK