Brakes 163 G WARNING If you leave children unattended in the vehi- cle, they could set the vehicle in motion by, for example: power when testing the brakes, stop the vehi- cle as soon as possible in accordance with traffic conditions. Have the brake system checked and repaired in a qualified specialist workshop. If you ignore warning lamps and messages on the instrument cluster, you will not be able to recognise failures and malfunctions affecting the brake system components and systems. Braking characteristics may change. The pedal travel and pedal force required to brake the vehicle may increase. Have the brake sys- tem checked and repaired at a qualified spe- cialist workshop.
Always pay attention to the warning lamps and messages in the instru- ment cluster. If the brake system is malfunctioning, pay attention to the instructions in the yellow ( Y page 135) or red ( Y page 142) event win- dow. In addition to the event window, an indi- cator lamp may light up in the instrument cluster or the status area of the on-board computer and the warning buzzer may sound. The brake system is equipped at the factory with the following systems: R releasing the parking brake R shifting the transmission into neutral R starting the engine They could also operate the vehicle's equip- ment and become trapped. There is a risk of an accident and injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave children unattended in the vehicle. Driving mode Ensure that you observe the safety notes in the section "Children in the vehicle" ( Y page 51). X Apply the parking brake. X Stop the vehicle. X Shift to neutral. X Let the engine idle for approximately two minutes before switching it off if: R the coolant temperature is above approximately 100 † R full engine power has been used, e.g. while driving in mountainous terrain or during combined operation. This is par- ticularly important when the vehicle is stopped at elevations more than 1,000 m above sea level.
R ABS (Anti-lock Braking System) R ALB (automatic load-dependent brake) Checking the compressed-air system for leaks G WARNING It is not possible to brake the vehicle if the compressed-air brake system has a leak or if there insufficient reservoir pressure. There is a risk of an accident. Do not pull away until the required reservoir pressures have been reached. In the event of loss of pressure while driving, immediately bring the vehicle to a halt in accordance with the traffic conditions. Secure the vehicle using the parking brake. Have the compressed-air system repaired at a qualified specialist workshop. X Vehicle with trailer: check the parking brake ( Y page 166).
X To switch off the engine: turn the key to position 0 in the ignition lock and remove it. X Safeguard the vehicle and trailer against rolling away; use chocks if necessary. Brakes Brake system If the brake system is faulty, the braking char- acteristics can change or the brake system can fail. If you notice a reduction in braking Z