Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Have you had the ECM(engine control module) scanned for fault codes yet, and if so, what are the code numbers?
110 - IAT sensor performance
130 - Right side upstream O2 sensor reading slow
135 - Right side upstream O2 sensor heater element performance
136 - Right side downstream O2 sensor performance
132, 134, 146 and 147 are not showing as legitimate codes for your vehicle