Online Edition for Part no. 01 41 2 604 027 - © 03/10 BMW AG
Online Edition for Part no. 01 41 2 604 027 - © 03/10 BMW AG
Online Edition for Part no. 01 41 2 604 027 - © 03/10 BMW AG
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Tech<strong>no</strong>logy <strong>for</strong> com<strong>for</strong>t, convenience and safety<br />
Function requirements<br />
The system must have been initialized while the<br />
tire inflation pressure was correct; otherwise,<br />
reliable signaling of a flat tire is <strong>no</strong>t ensured.<br />
Initialize the system after every correction of the<br />
tire inflation pressure and after every tire or<br />
wheel change.<br />
System limits<br />
Sudden serious tire damage caused by<br />
external influences can<strong>no</strong>t be indicated in<br />
advance.<<br />
A natural, even pressure loss in all four tires<br />
can<strong>no</strong>t be detected. There<strong>for</strong>e, check the tire<br />
inflation pressure regularly.<br />
In the following situations, the system could be<br />
delayed or malfunction:<br />
> System has <strong>no</strong>t been initialized<br />
> Driving on s<strong>no</strong>wy or slippery road surface<br />
> Sporty driving style: slip in the drive wheels,<br />
high lateral acceleration<br />
> Driving with s<strong>no</strong>w chains*<br />
When you are driving with the compact wheel*<br />
the Flat Tire Monitor is unable to function.<br />
Status display<br />
The current status of the Flat Tire Monitor can<br />
be displayed on the Control Display, e.g.<br />
whether or <strong>no</strong>t the FTM is active.<br />
1. "Vehicle Info"<br />
2. "Vehicle status"<br />
3. "Flat Tire Monitor"<br />
Initialization<br />
The initialization process adopts the set inflation<br />
tire pressures as reference values <strong>for</strong> the<br />
detection of a flat tire. Initialization is started by<br />
confirming the inflation pressures.<br />
Do <strong>no</strong>t initialize the system when driving with<br />
s<strong>no</strong>w chains* or with the compact wheel*.<br />
1. "Vehicle Info"<br />
2. "Vehicle status"<br />
3. "Reset"<br />
4. Start the engine – do <strong>no</strong>t drive away.<br />
5. Start the initialization using "Reset".<br />
6. Start to drive.<br />
The initialization finishes during driving,<br />
which can be interrupted at any time.<br />
When driving resumes, the initialization is continued<br />
automatically.<<br />
Indication of a flat tire<br />
The warning lamp lights up red. A<br />
message appears on the Control Display.<br />
In addition, an acoustic signal<br />
sounds. There is a flat tire or a major loss in tire<br />
inflation pressure.<br />
Actions in the event of a flat tire<br />
The status is displayed.<br />
Run-flat tires<br />
You can continue driving with a damaged tire at<br />
speeds up to 50 mph/80 km/h.<br />
If the vehicle is <strong>no</strong>t equipped with run-flat<br />
tires as provided at the factory, refer to<br />
page 249, do <strong>no</strong>t continue driving. Continuing<br />
to drive with a flat tire could cause severe accidents.<<br />
<strong>10</strong>0
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