NHTSA (USA)Critical
At a glance
What can fail
Manufacturing debris may be trapped between the fuel rail and injectors, potentially causing fuel to leak.
What the fix does
The 2019 Mercedes-Benz AMG GT63 has 8 recalls, the most serious involving three separate fire risks: chafing wires near the starter motor that can short-circuit, a leaking fuel injector, and an oil line to the turbocharger that can drip onto hot engine or exhaust components.
On the safety equipment side, the seatbelt pretensioners and the pre-crash tensioning system may fail to activate in a crash, reducing occupant protection. There are also two wiring concerns specific to this model: a transmission wiring harness can rub against the driveshaft and cause an engine stall, and the starter motor cable issue mentioned above carries the same stall risk alongside the fire hazard. The electronic stability control system may run incorrect software and respond inaccurately to certain driving situations, reducing the car's ability to correct a skid or loss of traction. The automatic emergency call system can send responders to the wrong location after a crash. Finally, the wheel hub caps can detach at speed and become a hazard for other road users.
At a glance
What can fail
Manufacturing debris may be trapped between the fuel rail and injectors, potentially causing fuel to leak.
What the fix does
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Dealers will replace the fuel rail and fuel injectors at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The starter motor positive cable may not be properly installed, allowing power supply harness wires to chafe and potentially fail.
What the fix does
Dealers will inspect the cable connections and reposition the positive cable as needed to prevent wire damage.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The communication module software may fail to send your vehicle's correct location to emergency services when the eCall system activates during a crash.
What the fix does
A dealer will update the communication module software, or the update will be sent over-the-air, at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The wheel-hub caps may detach while driving.
What the fix does
Dealers will replace the wheel-hub caps at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The Electronic Stability Program (ESP) software may be incorrect, causing the ESP system to respond inaccurately.
What the fix does
Dealers will update the ESP software at no charge to restore proper system function.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The automatic transmission wiring harness may not be properly secured, allowing it to rub against the drive shaft and potentially cause the engine to stall.
What the fix does
Dealers will inspect the mounting clips and wiring harness, then repair or replace them as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The oil feed line to the turbocharger may leak on certain 2018-2019 Mercedes-Benz models with 4.0L turbocharged engines.
What the fix does
Dealers will replace the oil feed line to the turbocharger at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front seat belt buckles may be incorrectly detected as unfastened even when properly fastened, which can disable the PRE-SAFE® function and pretensioner.
What the fix does
Dealers will inspect and replace front seat belt buckles as needed at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.