Flat Tire Monitor FTM*
1.
2.
3.
"Vehicle Info"
"Vehicle status"
"Reset"
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.
4.
5.
6.
Start the engine - do not drive away.
Start the initialization using "Reset".
Start to drive.
The system must be reinitialized each
time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed.<
The initialization is completed during the trip.
The initialization is completed during driving,
which can be interrupted at any time.
System limitations
When driving resumes, the initialization is con-
tinued automatically.
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.<
Indication of a flat tire
The warning lamps come on in yellow
and red. A message appears on the
Control Display. In addition, an
In the following situations, the system could be
delayed or malfunction:
acoustic signal sounds. There is a flat
tire or substantial loss of tire pressure.
>
>
>
System has not been initialized
1.
Cautiously reduce speed to below 50 mph
or 80 km/h. Avoid sudden braking and
steering maneuvers. Do not exceed a speed
of 50 mph or 80 km/h.
Driving on snowy or slippery road surface
Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration
If the car is not equipped with Run-
Flat Tires, refer to page 195, the stan-
dard equipment by design, do not continue
driving. Otherwise a severe accident could
result if you continue driving.<
>
Snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically.
2.
At the next opportunity, check the air pres-
sure in all four tires.
Do not initialize the system while snow chains
are attached.<
If all four tires are inflated to the cor-
rect pressures, the Flat Tire Monitor
might not have been initialized. The system
must then be initialized.<
iDrive, for operating principle refer to page 16.
81
Online Edition for Part no. 01 41 2 602 116 - © 01/09 BMW AG
| Categories | BMW Manuals, BMW Z-Series Manuals |
|---|---|
| Tags | BMW E89, BMW Z4 30i, BMW Z4 35i, BMW Z4 sDrive 30i |
| Model Year | 2009 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 5 out of 5)
Automotive readers have rated 2009 BMW Z4 SDrive 30i 35i E89 Owners Manual 5.0 out of 5.0 based on 1 product reviews. I am looking for service manual for BMW 2009 e89 s drive 23i and would greatly appreciate your help. Thanks