BMW F97 Technical Training Manual page 59

F97/F98￿Complete￿Vehicle
5.￿Chassis￿and￿Suspension
Optional￿equipment
Designation
LM￿EH2+￿wheel￿rims￿(forged)￿styling￿765M
LM￿EH2+￿wheel￿rims,￿rear￿(forged)￿styling￿765M
Color
Front￿tires
Rear￿tires
RSC￿tires￿with
emergency￿running￿properties
Factory￿equipment
The￿components￿of￿the￿above-listed￿wheel/tire￿combinations￿have￿been￿developed￿specially￿for￿the
F97/F98.￿This￿can￿be￿recognized￿by￿the￿star￿on￿the￿outer￿side￿of￿the￿tire,￿among￿other￿things.
Other￿combinations￿may￿have￿a￿negative￿effect￿on￿the￿performance￿and￿the￿driveability￿of￿the￿F97/F98
and￿lead￿to￿forfeiture￿of￿the￿operating￿licence￿with￿forfeiture￿of￿the￿insurance￿cover.
5.4.￿Driving￿dynamics￿systems
The￿M-specific￿coordination￿of￿the￿driving￿dynamics￿(longitudinal,￿transverse￿and￿vertical)￿was
effected￿on￿the￿Nürburgring￿Nordschleife.￿The￿main￿criteria￿were￿handling￿and￿the￿lap￿times.
5.4.1.￿Vertical￿Dynamics￿Management
The￿EDC￿function￿integrated￿in￿the￿M￿vertical￿dynamic￿platform￿(M￿VDP)￿controls￿the￿adjustable
dampers.
The￿drivability￿can￿be￿shifted￿toward￿the￿individual￿driving￿dynamics￿direction￿via￿the￿EDC￿button
in￿the￿M￿drive￿dynamic￿control￿switch￿on￿the￿center￿console.￿The￿program￿selection￿can￿also￿be
preconfigured￿in￿the￿head￿unit￿HU￿and￿selected￿using￿the￿corresponding￿M1/M2￿buttons￿on￿the
steering￿wheel.
Adaptive￿M￿suspension￿on￿Competition￿model￿(Dynamic￿Damper￿Control)
There￿are￿no￿EDC￿control￿valves￿as￿familiar￿from￿the￿G01/G02￿fitted￿on￿the￿outside￿of￿the￿shock
absorbers￿but￿instead￿typical￿M-only￿internal￿control￿valves.￿The￿shock￿absorbers￿have￿been
developed￿with￿the￿supplier￿ZF￿Sachs￿and￿the￿system￿adapted￿to￿the￿F97/F98.
The￿EDC￿works￿with￿infinitely￿variable￿valves￿in￿the￿absorbers.￿The￿hydraulic￿oil￿flow￿is￿controlled
via￿electromagnetic￿control￿valves.￿It￿is￿thus￿possible￿to￿make￿available￿the￿damping￿force￿actually
required￿at￿all￿times.￿The￿infinitely￿variable￿control￿principle￿was￿introduced￿for￿the￿first￿time￿in￿the￿E65
and￿has￿consistently￿been￿further￿developed.
F97/F98
9.5J￿x￿21
10J￿x￿21
Bi-color
Orbit￿grey
255/40￿R21
265/40￿R21
No
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