As you would expect from an AMG high-performance car, the new E 63 AMG also comes with an ultra-powerful braking system. Internally ventilated and perforated brake discs with their generous 360-millimetre dimensions are fitted front and rear.
The highly stressed front discs featuring composite technology that has been tried and tested in motor racing help offset temperature peaks more effectively. Grey-painted brake callipers with white AMG lettering and six-piston (front) and four-piston (rear) technology provide spontaneous, fade-resistant deceleration and extremely short stopping distances.
All-new AMG ceramic composite brakes are available as an option – instantly recognisable with their gold-painted brake callipers with the “AMG Carbon Ceramic” logo. Thanks to the special materials and production technology used to manufacture the discs from carbon-fibre-reinforced ceramic in a vacuum at 1700 degrees Celsius, the ceramic discs are much harder. This not only increases the service life many times over compared with a grey cast iron disc, but also their resistance to extreme loads and heat. The result is extremely short stopping distances, exact pressure point and much higher fade resistance even under extreme operating conditions. The larger ceramic discs – front: 402 x 39 millimetres; rear: 360 x 32 millimetres – also feature a composite design and are connected with a floating radial mount to an aluminium bowl.
Compared with the conventional composite brake discs, the ceramic brake discs are around 40 percent lighter. The further reduction in unsprung masses not only boosts driving dynamics and agility but also improves steering response as well as ride comfort and contact characteristics. Six-piston fixed callipers are fitted at the front with a brake lining surface of 2 x 154 cm2; four-piston fixed callipers with a brake lining surface of 2 x 73 cm2 are used at the rear.
Overview of brake data:
Numerous functions of the AMG high-performance braking system enhance comfort and safety. Take the practical HOLD function: if the E 63 AMG has come to a stop, the driver simply needs to press the brake pedal a little bit firmer. The vehicle is now held by the brake – even if the driver takes their foot off the brake pedal. This prevents the vehicle from unintentionally rolling forward in stop-and-go traffic or inadvertently rolling back on an uphill slope. The HOLD function is automatically disengaged once the vehicle is driven forward. Another useful feature comes in the shape of the hill-start assist. If the sensor technology detects that the driver has stopped on an incline, the brake pressure is automatically maintained constant for a short period. This means the E 63 AMG will not roll back and the driver has sufficient time to switch their right foot from the brake to the accelerator pedal without having to use the parking brake.
If the driver of the AMG saloon suddenly switches from the accelerator to the brake pedal prior to emergency braking, the braking system increases the pressure in the brake lines and applies the pads to the brake discs, so that they can grip instantly with full force when the brake pedal is pressed. The system supports the standard-fit Brake Assist by means of this ‘priming’. Further standard features include the brake-drying function, which uses brief braking impulses to ensure the film of water on the brake discs is removed in the wet, thus considerably improving the responsiveness of the brakes.
Source: Daimler AG