What are the most common Mercedes-Benz AMG GT problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Mercedes-Benz AMG GT has 6 documented issues. The most frequently reported are: MBUX Instrument Cluster Blackout / Reboot While Driving (NHTSA Recall, May 2026), High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid), Misrouted Transmission Wiring Harness Connector Corrodes and Short-Circuits (Fire Risk, Recall Repeated After Failed First Remedy). Of these, 4 are rated critical and should be addressed promptly.
Is the Mercedes-Benz AMG GT reliable?
The 2025 Mercedes-Benz AMG GT has 6 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 4 issues are rated critical: MBUX Instrument Cluster Blackout / Reboot While Driving (NHTSA Recall, May 2026) and High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid) and Misrouted Transmission Wiring Harness Connector Corrodes and Short-Circuits (Fire Risk, Recall Repeated After Failed First Remedy) and 48-Volt EQ Boost System: Loose Ground Cable (Fire Recall) and 48V Battery / Starter-Generator Failure Causing No-Start. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Mercedes-Benz AMG GT problems?
Repair costs for known Mercedes-Benz AMG GT issues range from $0 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2024-2026 Mercedes-Benz AMG GT MBUX Instrument Cluster Blackout / Reboot While Driving (NHTSA Recall, May 2026)?
NHTSA recall 26V-281 covers certain 2024-2026 platform-192 AMG GT vehicles whose infotainment-control-unit software may trigger increased system resets. During a reset, the instrument cluster may briefly stop displaying driving-related information, increasing crash risk. The repo… Severity: high.
What is the 2023-2025 Mercedes-Benz AMG GT High-Voltage Starter-Alternator Control Unit Software Fault Causes Loss of Drive Power (GT 63 S E Performance Plug-In Hybrid)?
The AMG GT 63 S E Performance is a plug-in hybrid and is a fundamentally different electrical architecture from every other GT — it carries a high-voltage battery and a high-voltage starter-alternator on top of the M177 V8. NHTSA campaign 25V129000 covers 2023-2024 and 2025 AMG G… Severity: high.
What is the 2019-2025 Mercedes-Benz AMG GT Misrouted Transmission Wiring Harness Connector Corrodes and Short-Circuits (Fire Risk, Recall Repeated After Failed First Remedy)?
On the X290 four-door AMG GT (GT 43 / GT 53), the transmission wiring harness can be routed incorrectly so that the electrical connector sits where it is exposed to water and road spray. The connector corrodes, and the corroded contacts can short-circuit — which Mercedes-Benz its… Severity: high.
What is the 2019-2025 Mercedes-Benz AMG GT 48-Volt EQ Boost System: Loose Ground Cable (Fire Recall) and 48V Battery / Starter-Generator Failure Causing No-Start?
The GT 43 and GT 53 use the M256 inline-six with a 48-volt EQ Boost integrated starter-generator that replaces the conventional starter and alternator. Two distinct failures cluster here. First, a safety defect: NHTSA campaign 24V100000 covers 2021-2023 GT 43 and GT 53 whose 48-v… Repairs typically run $900-$3,500. Severity: high.
What is the 2024-2025 Mercedes-Benz AMG GT Rear-Axle Steering / Driver Assistance Warning Messages from Chassis Sensor Calibration Faults?
The 2024+ AMG GT uses rear-axle steering and a dense network of chassis sensors tied into stability control and driver assistance systems. Early-owner reports describe warning messages for steering assist, ESP, or driver assistance functions, sometimes after alignment work, low b… Repairs typically run $250-$2,200. Severity: medium.
What is the 2024-2025 Mercedes-Benz AMG GT 12V Battery Drain from Telematics / Sleep-Mode Module Wakes (Platform-Wide Pattern)?
Mercedes' current electronic architecture (shared across the C192 AMG GT, W206 C-Class, X254 GLC, and EQE/EQS) has documented 12V battery drain complaints from control modules not sleeping properly — typically the telematics / mbrace head unit polling cellular at idle. On the AMG… Repairs typically run $0-$700. Severity: low.
