BMW F97, Техническое учебное пособие

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F97/F98�Complete�Vehicle
5.�Chassis�and�Suspension
52
The�M�compound�brake�provides�even�greater�braking�power�than�the�sports�brake�offered�on�the
G01/G02�BMW�X3/X4�M40i.�In�a�direct�comparison�it�also�offers:
• Reduction�in�the�vehicle�weight,�resulting�in�improved�agility�and�dynamics,�accelerating�ability
and�fuel�consumption
• Reduction�in�the�rotating�mass,�resulting�in�improved�accelerating�ability,�response�and
handling
• Increased�fading�stability�and�greater�thermal�resistance
• Perforated�disc�ring,�sports-style�look,�optimized�response�characteristics�in�the�wet
• Usage�of�intelligent�lightweight�construction
• Technology�transfer�from�M�sport
• Unique,�authentic�M�design.
Designation Unit G01/G02�M40i F97/F98
Front�brake 4-piston�fixed�caliper 4-piston�fixed�caliper
Brake�disc,
front
[mm]
348�x�36 395�x�36
Rear�brakes 1�piston,�floating�caliper 1�piston,�floating�caliper
Brake�disc [mm] 345�x�24 370�x�24
Parking�brake electro-
mechanical
electro-
mechanical
The�front�brake�is�entirely�specific�to�the�F97/F98.�It�is�a�large,�perforated�M�compound�brake�disc
combined�with�a�four-piston�fixed�caliper.�The�brake�disc�diameter�is�47 mm�larger�than�that�of�the
G01/G02�M40i.�The�exterior�of�all�brake�calipers�is�blue�metallic�in�color�with�the�M�logo.
F97/F98,�front�brake