Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

1995 Mercedes Benz C36FACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Memory (Section 11)

Diagnostic module (OBDII, N59/1) uses 2 different plug connectors for DTC readout:

16-pole diagnostic module (OBD II) generic scan tool connector (X11/22) using a generic scan tool, see Fig 1.
38-pole data link connector (X11/4) using the HHT (see section 0). See Fig 2 and Fig 3 .

Fig 1: Identifying Diagnostic Module Generic Scan Tool Connector (OBD II, X11/22)
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.