Mercedes-Benz ML63 AMG won't start with brake pedal unresponsive and previous hard drive issues on Mercedes-Benz ML63 AMG

Submitted by bigbucks25 · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz ML63 AMG owners report experiencing starting issues, particularly when the brake pedal is unresponsive, which may be caused by a faulty brake light switch. This malfunction can prevent the vehicle from recognizing that the brake pedal is depressed, ultimately hindering the engine from starting. It is recommended that owners have the brake light switch inspected and replaced by a qualified mechanic to resolve this issue. Additionally, some owners have reported confusion regarding hard drive issues, although the ML63 AMG typically does not come equipped with a hard drive for data storage. Addressing these concerns promptly is essential for maintaining the safety and functionality of the vehicle, and seeking assistance from a certified mechanic or dealership is advisable if troubleshooting proves challenging.

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