Mercedes-Benz G-Klasse W463a
Weaknesses, engine ratings and buying advice
476–612 PS
4.0L V8 BiTurbo AMG Benzin
585 hp fortress — the V8 as an acoustic earthquake on wheels
Legendary!Generations
Engine Overview
The Mercedes-Benz G-Klasse W463a is available with 5 engine variants — from 272 to 612 hp.
The Mercedes-Benz G 350d (Diesel, 286 PS) has the OM656 (2.9L R6 Diesel) — rated: "Be Careful", 6 known weaknesses.
The Mercedes-Benz G 400 d (Diesel, 340 PS) has the OM656 (2.9L R6 Diesel) — rated: "Be Careful", 6 known weaknesses.
The Mercedes-Benz G 400d (Diesel, 330 PS) has the OM656 (2.9L R6 Diesel) — rated: "Be Careful", 6 known weaknesses.
The Mercedes-Benz AMG G 63 (Benziner, 585 PS) has the M177 (4.0L V8 BiTurbo AMG) — rated: "Be Careful", 8 known weaknesses.
The Mercedes-Benz G 500 (Benziner, 422 PS) has the M176 (4.0L V8 BiTurbo) — rated: "Be Careful", 9 known weaknesses.
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Rust on window frames and window channel rubbers The window channel rubbers are not painted inside from the factory and often begin to rust within a few years. Window frames, roof rails and tailgate hinges are all at risk. Symptoms: Rust bubbles under the paint on window channel rubbers, corrosion at tailgate hinges from 40,000 km | High |
Alternatives
Volvo EX90 I
Großer SUV (2023–2026)
BMW XM G09
Großer SUV (2022–2026)
Land Rover Range Rover Sport L461
Großer SUV (2022–2026)
BMW iX I20
Großer SUV (2021–2026)
Land Rover Range Rover L460
Großer SUV (2021–2026)
Toyota Highlander XU70
Großer SUV (2021–2025)
Known Problems and Issues
A total of 30 weaknesses have been documented for the Mercedes-Benz G-Klasse W463a (2018–2025) — 23 engine-related and 7 vehicle-related. Typical issues affect Rust, Electronics, Interior, Brakes.
G-Klasse (OM656, 2018–2025) — Be Careful: Recall Coolant Pump — Fire Hazard (Action Code 2090008), Bosch CP4 Pump Sensitive to Fuel Quality, Coolant Pump Leaking — Fire Risk (Recall). Power: 286 PS.
G-Klasse (OM656, 2019–2025) — Be Careful: Recall Coolant Pump — Fire Hazard (Action Code 2090008), Bosch CP4 Pump Sensitive to Fuel Quality, Coolant Pump Leaking — Fire Risk (Recall). Power: 330 PS.
G-Klasse (OM656, 2020–2026) — Be Careful: Recall Coolant Pump — Fire Hazard (Action Code 2090008), Bosch CP4 Pump Sensitive to Fuel Quality, Coolant Pump Leaking — Fire Risk (Recall). Power: 340 PS.
G-Klasse (M176, 2018–2025) — Be Careful: Timing Chain Stretch — M176 4.0L V8, Camshaft Adjuster Solenoid Draws Oil into Wiring Harness, Coolant Pump Leaking. Power: 421 PS.
G-Klasse (M177, 2018–2025) — Be Careful: MCT Gearbox — Clutch Wears in City Traffic, Camshaft Adjuster Solenoid Draws Oil into Wiring Harness, Camshaft Cover Gasket Leaking — Hot-V Area. Power: 584–585 PS.
What to watch out for with the Mercedes-Benz G-Klasse? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Mercedes-Benz G-Klasse W463a have? +
What should I look for when buying a used Mercedes-Benz G-Klasse W463a? +
Which engine is recommended? +
Which Mercedes-Benz G-Klasse W463a engine is the most fun? +
Is the Mercedes-Benz G-Klasse W463a worth buying used? +
What horsepower variants are available for the Mercedes-Benz G-Klasse W463a? +
Last updated: February 2026 · All information without guarantee