BMW 2010 M3 Coupe Manual Do Proprietário

Página de 274
T
e
chnology for
 driving comfort
 and 
safe
ty
84
Activating HDC
Press the button; the LED lights up.
When the vehicle is being braked automatically, 
the LED flashes.
Deactivating HDC
Press the button again; the LED goes out.
HDC is automatically deactivated at speeds 
greater than approx. 35 mph/60 km/h.
Using HDC
In cars with manual transmission:
Use HDC in lower gears and in reverse gear.
With automatic transmission:
You can use HDC in any drive position.
Displays in the instrument cluster*
Display for target speed
HDC display
Malfunction
The HDC display disappears during HDC oper-
ation, or does not appear:
HDC is temporarily unavailable due to exces-
sive brake temperature, or DSC has failed.
Drive-off assistant
The drive-off assistant enables you to drive off 
smoothly on uphill gradients. It is not necessary 
to use the parking brake for this.
1.
Hold the car in place by depressing the 
brake.
2.
Release the brake and drive off without 
delay.
The drive-off assistant holds the car in 
place for approx. 2 seconds after the 
brake is released. Drive off without delay after 
releasing the brake. Otherwise, the drive-off 
assistant will no longer hold the car in place 
after approx. 2 seconds and the car will start to 
roll backwards.
<
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor detects pressure loss in a 
tire by comparing the rotating speeds of the 
individual tires while moving.
In the event of pressure loss, the rolling circum-
ference changes and, thus, the rotating speed 
of the affected wheel. This change is detected 
and is reported as a flat tire.
Functional requirement
In order to assure the reliable reporting of a flat 
tire, the system must be initialized for the cor-
rect tire inflation pressure.
The system must be reinitialized each 
time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed.
<
System limitations
The Flat Tire Monitor is unable to warn 
the driver of sudden, severe tire damage 
caused by external factors, nor can it identify 
the gradual loss of pressure that will inevitably 
occur in all four tires over a lengthy period of 
time.
<
In the following situations, the system could be 
delayed or malfunction:
Online Edition for Part no. 01 41 2 603 066 - © 08/09 BMW AG
Online Edition for Part no. 01 41 2 603 066 - © 08/09 BMW AG