Mercedes Benz C-Class (W204) 2007 - 2014 Training Manual: M271 Features

Technical features:

• 4-cylinder in-line engine
• Aluminum crankcase with cast iron cylinder barrels
• 4-valve technology with 2 camshafts
• Lanchester balancer (to compensate for free inertial forces)
• Continuously variable camshaft adjustment of the intake/exhaust camshafts
• Internal exhaust gas recirculation (via the camshaft adjustment)
• 2 crankcase ventilation systems (partial & full load)
• Engine control unit mounted on the engine
• Engine control unit with CAN gateway function
• SIM 4 LKE gasoline injection and ignition system (Siemens)
• Fuel system with fuel pump control unit (N118)
• Compressor charging via an EATON charger
• Charge air cooling
• Dedicated ignition coils
• Catalytic converters mounted close to the engine
• Linear lambda control (wide-band sensor)
• Exhaust certification in accordance with EURO 4
• Vacuum pump