Symptom Diagnostics

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For symptom diagnosis chart reference, refer to the following list.

Engine starts and accelerates poorly when cold. See Fig 1.
Engine does not start. See Fig 1.
Engine has uneven idle. See Fig 1.
Engine has insufficient output. See Fig 2.
Engine runs unevenly (shakes). See Fig 2
Engine runs unevenly (misfiring). See Fig 2
Engine surges after cold start. See Fig 2
Transmission failure during warm-up. See Fig 3.
Transmission failure when warm or increased fuel consumption. See Fig 3
Engine vibrates. See Fig 3
EA is in "limp home" mode. See Fig 3

Fig 1: Symptom Diagnostics (1 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Symptom Diagnostics (2 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Symptom Diagnostics (3 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.