Mercedes-Benz SL63 AMG transmission slips out of drive during acceleration, check engine light on on Mercedes-Benz SL63 AMG

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz SL63 AMG owners report experiencing transmission slipping out of drive during acceleration, accompanied by a check engine light. This issue may stem from low transmission fluid levels, which can affect the vehicle's performance. Additionally, faulty solenoids that control fluid flow within the transmission can lead to improper gear shifting. Some owners also face problems related to the torque converter, which, if malfunctioning, can cause slipping during acceleration. The presence of the check engine light suggests that the vehicle's diagnostics system has detected a problem, necessitating a scan for error codes to identify the specific issue. Furthermore, coolant contamination due to cracks in the radiator can result in transmission failure, particularly in models with Valeo radiators. It is crucial for owners experiencing these symptoms to have their vehicles inspected by a qualified mechanic to prevent further damage and avoid costly repairs.

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