2002 Mercedes Benz G500FACTORY OEM SERVICE PROCEDURE

Current Consumption

Disconnect fuel pump relay (k1). Fuel pump relay (k1) is located in fuse and relay module (K40). Fuse and relay module (K40) is located in right rear corner of engine compartment. Connect DVOM to fuel pump relay socket terminals No. 3 and 5. Turn ignition on. DVOM should indicate 4-9 amps. If amperage is within specification, test is complete. If amperage is not within specification, possible cause is faulty fuel pump. Repair as necessary.

Factory Service Tools

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When to See a Mechanic

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

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