Component description for the "CHECK ENGINE" indicator lamp - GF54.30-P-5011AMG

MODEL 164, 251 with ENGINE 156.980 with CODE (494) USA version

MODEL 209 with ENGINE 156.982 with CODE (494) USA version

MODEL 211, 219 with ENGINE 156.983 with CODE (494) USA version

Location for model 164, 251

The indicator lamp (labeled CHECK ENGINE in yellow) is located on the right in the instrument cluster (A1).

Fig 1: Identifying CHECK ENGINE MIL Indicator Lamp - Location For Model 164, 251

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Location on models 209, 211, 219

The indicator lamp (labeled CHECK ENGINE in yellow) is located on the right in the instrument cluster (A1).

Fig 2: Identifying CHECK ENGINE MIL Indicator Lamp - Location For Model 209, 211, 219

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Task

The indicator lamp alerts the driver to the reoccurrence of faults relevant to exhaust emissions.

Function

The ME-SFI control unit (N3/10) actuates the indicator lamp by transmitting an appropriate signal via the CAN data bus to the instrument cluster.

As a function check the indicator lamp is actuated at "Ignition ON". It goes out after engine start if there are no faults relevant to exhaust emissions.