Severe strain on the brake system
The brakes will be subject to severe strain when driving in mountains or hilly areas, or when towing a trailer. Vehicle speed is usually slower, which means that the cooling of the brakes is less efficient than when driving on level roads. To reduce the strain on the brakes, shift into a lower gear and let the engine help with the braking. Do not forget that if you are towing a trailer, the brakes will be subjected to a greater than normal load.
See also:
Power brakes function only when the engine is running
The power brakes utilize vacuum pressure
which is only created when the engine is running.
Never let the vehicle roll to a stop with the
engine switched off.
If the power brakes are not working, ...
Auto-brake
If a collision is imminent and the driver has not
applied the brakes or begun to steer around the
vehicle or pedestrian, the auto-brake function
is activated without the driver pressing the
br ...
Activation
PAC is activated when the gear selector is moved to R if the system is selected
in the MY CAR menu system or by pressing the CAM button in the center console. See
page 133 for a description of t ...