Mercedes-Benz SL55 AMG left front suspension drops after sitting for a day on Mercedes-Benz SL55 AMG

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

Problem overview

Some Mercedes-Benz SL55 AMG owners report experiencing issues with the left front suspension dropping after sitting for a day, which may indicate a malfunction in the Active Body Control (ABC) system. This problem is often seen in vehicles with ABC suspension, where the car may lower itself overnight or during the day, particularly on the left front corner. Owners have noted that a malfunctioning ABC system can trigger a warning light on the dashboard. Contributing factors include temperature variations, parking on inclines, and faulty suspension components. It is advised to check for visible sag on the left front suspension and ensure the vehicle is level. If the suspension continues to drop or if handling concerns arise, contacting Mercedes customer care or a knowledgeable mechanic is recommended. Promptly addressing this issue is crucial for maintaining the vehicle's performance and safety, as regular maintenance and timely repairs can help prevent further complications with the suspension system.

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