2010 BMW 3 Series Owners Manual Sports Wagon

Activating HDC
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
Press the button; the LED lights up.
When the vehicle is being braked automatically,
the LED flashes.
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.<
Deactivating HDC
Press the button again; the LED goes out.
HDC is automatically deactivated at speeds
greater than approx. 35 mph/60 km/h.
Flat Tire Monitor FTM*
Using HDC
The concept
In cars with manual transmission:
Use HDC in lower gears and in reverse gear.
The Flat Tire Monitor detects pressure loss in a
tire by comparing the rotating speeds of the
individual tires while moving.
With automatic transmission:
You can use HDC in any drive position.
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.
Displays in the instrument cluster*
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.<
1
2
Display for target speed
HDC display
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.<
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.
In the following situations, the system could be
delayed or malfunction:
84
Online Edition for Part no. 01 41 2 603 048 - © 08/09 BMW AG
Product Specification
CategoriesBMW 3-Series Manuals, BMW Manuals
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2010 BMW 3 Series Owners Manual Sports Wagon SKU UPC Model
Karl on Jan 17, 2014.