2023 Mercedes-Benz G63 AMG Service and Repair Manual

This factory service and repair manual for the 2023 Mercedes-Benz G63 AMG reaches across three trims: Base, Edition 55 and Professional Edition. Each is a four-door sport utility, and the engine listing is a single gasoline V8 of 4.0L, turbocharged with double overhead camshafts. The manual gives specifications, torque values and wiring diagrams for that V8 and its fuel system, along with the power train and body, and diagnostics to trace faults.

Engines covered

• 4.0L V8 — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sport utility

Trims covered

• Base
• Edition 55
• Professional Edition

Known issues on the 2023 G63 AMG. Of the three recalls recorded for this year, two concern the fuel pump: on certain vehicles it can shut down and take drive power with it, and dealers fit a new pump. The third covered certain vehicles whose air conditioning system may hold the incorrect refrigerant, raising a fire risk if it leaks in a crash. Six complaints are logged, three of them under fuel/propulsion and two under engine, and 1 complaint reported an injury. Fuel system diagnostics and pump replacement procedures are covered.