2021 Mercedes-Benz G63 AMG

Introduction

The 2021 Mercedes-Benz G63 AMG is a high-performance SUV powered by a twin-turbocharged 4.0L V8 engine producing 577 horsepower and 627 lb-ft of torque. It features a 9-speed automatic transmission and all-wheel drive. Despite its impressive capabilities, the G63 AMG has also had its share of reported issues.

Engine

4.0L V8 Bi-Turbo

• Turbocharger Failure: Symptoms include loss of power, increased oil consumption, and loud noises from the engine. Solution: Replacement of the faulty turbocharger units. Estimated Cost to Fix: $2,000 - $4,000+
• Intake Valve Leak: Symptoms include rough idling, loss of power, and increased emissions. Solution: Replacement of the intake valves and gaskets. Estimated Cost to Fix: $1,500 - $2,500+

Transmission

9-Speed Automatic

• Transmission Slipping: Symptoms include hesitation or jerking during gear changes. Solution: Reprogramming the transmission control unit (TCU) or replacement of the transmission. Estimated Cost to Fix: $500 - $2,500+
• Shift Solenoid Failure: Symptoms include difficulty shifting gears and transmission error messages. Solution: Replacement of the faulty shift solenoids. Estimated Cost to Fix: $500 - $1,500+

Suspension

• Front Suspension Ball Joint Wear: Symptoms include clunking noises, unstable handling, and uneven tire wear. Solution: Replacement of the worn ball joints. Estimated Cost to Fix: $500 - $1,000+
• Rear Differential Failure: Symptoms include loud noises from the rear, loss of power, and inability to engage gears. Solution: Replacement of the rear differential assembly. Estimated Cost to Fix: $2,000 - $3,500+

Electrical

• Battery Drain: Symptoms include difficulty starting the vehicle or a dead battery after a period of inactivity. Solution: Diagnosis and repair or replacement of the faulty electrical component causing the drain. Estimated Cost to Fix: Varies depending on the cause

Interior

• Infotainment System Malfunction: Symptoms include freezing, glitches, or unresponsive touchscreens. Solution: Software updates or replacement of the infotainment system. Estimated Cost to Fix: $500 - $2,000+
• Climate Control Issues: Symptoms include inability to adjust temperature, noisy fan, or lack of air flow. Solution: Repair or replacement of the climate control actuators, fan, or sensors. Estimated Cost to Fix: $500 - $1,500+

Exterior

• Roof Rails Rusting: Symptoms include the development of rust spots on the roof rails. Solution: Replacement of the affected roof rails. Estimated Cost to Fix: $1,000 - $2,000+
• Headlight Condensation: Symptoms include fogging or moisture inside the headlight assemblies. Solution: Replacement of the faulty headlights or resealing. Estimated Cost to Fix: $500 - $1,500+

Recalls

• NHTSA Campaign Number 21V-617: Loss of Engine Power (4.0L V8 Bi-Turbo)
• NHTSA Campaign Number 22V-454: Brake Lines Damaged by Fuel Leaks (All Engine Options)

Summary

The 2021 Mercedes-Benz G63 AMG has been praised for its impressive performance, rugged capabilities, and luxurious amenities. However, it has also had its share of issues ranging from engine and transmission problems to electrical and suspension concerns. Some of these issues can be costly to repair, so it’s important to consider the potential maintenance expenses when considering this vehicle.