Mercedes-Benz SLK320 brake light and ABS light on with speedometer failure and convertible top not working on Mercedes-Benz SLK320

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

Problem overview

Some Mercedes-Benz SLK320 owners report experiencing issues such as the brake light and ABS light being illuminated, which may indicate problems with the service brakes, hydraulic system, or electronic stability control, necessitating inspection by a qualified mechanic for safe driving. Additionally, some owners report speedometer failure, often linked to malfunctions in the speed sensor or instrument cluster, which can compromise driving accuracy and requires prompt attention to avoid safety hazards. Furthermore, issues with the convertible top operation, such as hydraulic cylinder leaks, seal cracks, or hinge stiffness, are commonly reported, and it is advisable to seek professional diagnosis and repair to restore full functionality. Overall, it is recommended that owners consult a certified mechanic or dealership experienced with Mercedes-Benz vehicles to effectively address these concerns for optimal performance and safety.

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