Risk Of Accident When Commissioning The Vehicle Due To A Lack Of Braking Effect When The Service Brake Is Operated For The First Time After Repair Work. - AS42.50-Z-0002-01A

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2023 Mercedes-Benz C43 AMG, 2022 Mercedes-Benz C43 AMG, 2021 Mercedes-Benz C43 AMG, 2020 Mercedes-Benz C43 AMG, and 2019 Mercedes-Benz C43 AMG. However, it is still accessible from the selected car via links, so may be relevant.

Model all (4xWD, BUS, CAR, Light transporter, smart)

Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.

Risk of accident

After performing work on the hydraulic section of the brake system, an accident may occur due to a lack of braking effect upon the first operation of the service brake.

Safety precautions/instructions

After completing work on the hydraulic section of the brake system and before starting the engine, actuate the brake pedal several times until pressure is built up in the brake system.
When pressure is built up in the brake system, the brake pedal must be held in this position for approx. 30 s to ensure that the pressure in the brake system does not drop.