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

MODEL 164, 251 with ENGINE 156.980 with CODE (494) USA version up to Model Year 8

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

Fig 1: Identifying Check Engine Indicator Lamp

Courtesy of MERCEDES-BENZ USA

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

Location on models 209, 211, 219

Fig 2: Identifying Check Engine Indicator Lamp

Courtesy of MERCEDES-BENZ USA

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

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.