Bmw 128i Convertible 2011 Bedienungsanleitung PDF herunterladen (Seite 84)

Technology for driving comfort and safety

82

> When driving uphill on snow-covered roads,

in slush or on unplowed, snow-covered

roads

> When rocking a stuck vehicle free or start-

ing off in deep snow or on loose ground

> When driving with snow chains

Activating DTC

Press the button; the indicator lamps for DTC in

the instrument cluster come on.

For better control

If the indicator lamp flashes:

DTC is regulating the drive and braking

forces.

If the indicator lamps are on:

DTC has been activated.

Deactivating DTC

Press the button again; the DTC indicator

lamps in the instrument cluster go out.

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 system does not measure the actual infla-

tion pressure in the tires.

The system detects a tire pressure loss due to

speed comparisons among the individual

wheels as you drive.

In the event of pressure loss, the rolling circum-

ference changes and, thus, the rotating speed

of the affected wheel. The system detects this

and reports it as a flat tire.

Functional requirement

The system has to have been initialized at the

correct inflation pressure; otherwise, a reliable

reporting of a flat tire is not assured.

Each time a tire inflation pressure has been cor-

rected or a wheel or tire has been changed,

reinitialize the system.

System limitations

It is impossible to provide advance warn-

ing of sudden, severe tire damage caused

by outside influences.<

The system will not detect a natural, uniform

pressure loss in all four tires. Therefore you

should check the inflation pressure regularly.

In the following situations, the system could be

delayed or malfunction:

> System has not been initialized

> Driving on snowy or slippery road surface

> Performance-oriented style of driving: slip

in the drive wheels, high lateral acceleration

> Driving with snow chains

*

Status display

The current status of the Flat Tire Monitor can

be displayed on the Control Display, e.g.

whether or not the FTM is active.

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