Login- Download PDF Manual
-
ba8_e70ag.book Seite 82 Freitag, 5. Juni 2009 11:42 11
Technology for comfort, convenience and safety
PDC Park Distance Control*
The concept In addition to the PDC Park Distance Control, the rear view camera*, refer to page 86, can also be switched on. PDC assists you during parking. A slow approach to an object in front of or behind your vehicle is announced by: > Signal tones > Optical displays
Measurement Ultrasonic sensors in the bumpers carry out the measurement. Their range is approx. 7 ft/2 m. The acoustic warning begins: > at approx. 24 in/60 cm for the front* sen-
sors and the two rear corner sensors.
> at approx. 5 ft/1.50 m for the middle sen-
sors in the rear.
System limitations
PDC cannot replace the personal assess- ment of the traffic situation. Also make a direct visual check of the traffic situation around the vehicle. Otherwise, there could be a risk of accident, for example due to other road users or objects outside the detection range of PDC. Loud sources of sound, inside and outside the vehicle, could drown out the PDC signal tone.< Avoid approaching an object too quickly. Avoid starting off quickly while PDC is not
yet activated. Otherwise, physical circumstances could cause the system to issue a warning late.<
Limitations of ultrasonic measurement The detection of objects can come up against the limitations of physical ultrasonic measure- ment, for example: > when using tow bars and towing hitches > in the presence of thin or wedge-shaped
objects
> in the presence of low objects > in the presence of objects with corners and
sharp edges
Low objects that have already been displayed, e.g. curbs, can disappear again from the detec- tion area of the sensors before or after a contin- uous tone sounds. Higher, protruding objects, e.g. ledges, cannot be detected.
False warnings Under the following conditions, PDC may dis- play a warning even though no obstacle is present in the detection range: > in heavy rain > when the sensors are heavily soiled or iced-
over
> when the sensors are covered with snow > on rough road surfaces > in large, rectangular buildings with smooth
walls, e.g. underground garages > in the presence of heavy exhaust > due to the presence of other ultrasonic
sources such as street sweepers, steam cleaners, or neon lamps.
Automatic activation With the engine running or the ignition switched on, shift the selector lever into position R.
82
ba8_e70ag.book Seite 83 Freitag, 5. Juni 2009 11:42 11
Automatic deactivation The system switches off and the LED goes out: > after approx. 165 ft/50 m when driving for-
ward
The signal tone is switched off: > when the vehicle is more than approx.
4.0 in/10 cm away from an object
> when the selector lever is in the P position
> at speeds over approx. 25 mph/35 km/h
when driving forward
Switch the system back on as needed.
Switching on/off manually
Volume You can adjust the volume of the signal tone, refer to page 81. The setting is stored for the remote control cur- rently in use.
Optical warning The approach to an object can be shown on the Control Display. Objects that are farther away are displayed on the Control Display before a signal tone sounds.
Press the button. > On: LED lights up > Off: LED goes out
Signal tones When nearing an object, the position is corre- spondingly indicated by an interval tone. Thus, an object detected to the left rear of the vehicle will be indicated by a signal tone from the left rear speaker, etc. The shorter the distance to the object becomes, the shorter the intervals become. If the distance to the nearest object falls to below roughly 1 ft/30 cm, then a continuous tone sounds. If objects are present both in front of and behind the vehicle, then an alternating, continuous tone sounds. An intermittent tone is interrupted after approx. 3 seconds: > when the vehicle remains stationary in front of an object that has only been detected by one of the corner sensors
> when driving parallel to a wall
The display appears as soon as PDC is acti- vated. If the last image selected was the rear view camera, this is displayed again. To switch to PDC: 1. Select the "Switch off rear view camera"
symbol
on the Control Display.
2. Press the controller. The setting is stored for the remote control cur- rently in use.
Image on the Control Display
Switching on the rear view camera using iDrive With PDC activated: 1. Select the "Switch on rear view camera"
symbol
2. Press the controller.
83
ba8_e70ag.book Seite 84 Freitag, 5. Juni 2009 11:42 11
The image of the rear view camera is displayed. The setting is stored for the remote control cur- rently in use.
Malfunction
A Check Control message appears in the instrument panel, refer to page 77. The areas in front of and behind the vehicle appear in shaded form on the Control Display. PDC is malfunctioning. Have the system checked. In order to assure full functionality: > Keep sensors clean and free of ice. > Do not spray the sensors with high-pres-
sure cleaners for long periods and keep the spray nozzle at least 12 in/30 cm away from them.
Top View*
The concept Top View assists you when parking and maneu- vering. To accomplish this, the door region and road surface region are shown on the Control Display.
Detection Detection is carried out by two cameras inte- grated into the exterior mirror and the rear view camera. The range is: > approx. 7 ft/2 m to the side > approx. 7 ft/2 m to the rear Obstacles up to the height of the exterior mir- rors are thus detected in a timely fashion.
84
System limitations In the following situations, the function of Top View is limited: > when a door is open > when the liftgate is open > when the exterior mirrors are folded in > under poor lighting conditions The arrows next to the vehicle are displayed in a shaded form on the Control Display and a sym- bol appears at the corresponding location on the vehicle.
Also make a direct visual check of the traffic situation around the vehicle. Other- wise, there could be a risk of accident, for exam- ple due to other road users or objects outside the image range of the camera.<
Automatic activation With the engine running or the ignition switched on, shift the selector lever into position R. The images from Top View and PDC are dis- played when the system has been switched on using iDrive.
Automatic deactivation The system switches off and the LED goes out: > after approx. 165 ft/50 m when driving for-
ward
> at speeds over approx. 25 mph/35 km/h
when driving forward
Switch the system back on as needed.
Switching on/off manually
Press the button. > On: LED lights up.
ba8_e70ag.book Seite 85 Freitag, 5. Juni 2009 11:42 11
> Off: LED goes out. If Top View is displayed, switch on the rear view camera using iDrive, refer to page 87.
Optical warning The approach to an object can be shown on the Control Display. When the distance to an object is small, the PDC display correspondingly shows a red bar in front of the vehicle.
The display appears as soon as Top View is activated. If the last image selected was the rear view camera, this is displayed again. To switch to Top View: 1.
Select the "Switch off rear view camera"
on the Control Display.
2. Press the controller. The setting is stored for the remote control cur- rently in use.
Image on the Control Display
Switching on the rear view camera using iDrive With Top View activated: 1. Select the "Switch on rear view camera"
symbol
2. Press the controller. The image of the rear view camera is displayed. The setting is stored for the remote control cur- rently in use.
Brightness With Top View switched on: 1. Select the 2. Turn the controller until the desired setting
symbol.
is displayed and then press the controller.
Contrast With Top View switched on: 1. Select the 2. Turn the controller until the desired setting
symbol.
is displayed and then press the controller.
Displaying turning lines and pathway lines > The static, red turning line shows the lateral
space required when the wheel is fully turned.
> The variable, green pathway lines assist you
in estimating the amount of lateral space actually required. The pathway lines depend on the current steering angle and are continuously adapted to movements of the steering wheel.
symbol.
1. Select the 2. Press the controller. Turning lines and pathway lines are displayed.
Cameras
The lenses of the Top View cameras are on the undersides of the exterior mirror housings. The presence of dirt can impair image quality. Clean the lens with a moist, nonabrasive cloth.
85
ba8_e70ag.book Seite 86 Freitag, 5. Juni 2009 11:42 11
Rear view camera*
The concept The rear view camera assists you when parking and maneuvering in reverse. To accomplish this, the region behind your vehicle is shown on the Control Display.
System limitations
Also make a direct visual check of the traffic situation around the vehicle. Other- wise, there could be a risk of accident, for exam- ple due to other road users or objects outside the image range of the rear view camera.<
The rear view camera is not able to detect objects at greater heights or protruding
objects such as projections from walls.<
Automatic activation With the engine running or the ignition switched on, shift the selector lever into position R. The image of the rear view camera is displayed when the system has been switched on using iDrive.
Automatic deactivation The system switches off and the LED goes out: > after approx. 33 ft/10 m when driving for-
ward
> at speeds over approx. 9 mph/15 km/h
when driving forward
Switch the system back on as needed.
Switching on/off manually
> Off: LED goes out. If PDC is displayed, switch on the rear view camera using iDrive, refer to page 83.
Assistance functions
Function requirements > Rear view camera is switched on. > Liftgate is completely closed.
Pathway lines
> Can be displayed in the image of the rear view camera when the transmission is in reverse.
> Help estimate the required amount of space
when parking and maneuvering on a flat road surface.
> Depend on the current steering angle and are continuously adapted to movements of the steering wheel.
To display parking aid lines using iDrive, refer to page 87.
Turning lines
Press the button. > On: LED lights up.
86
> Can be displayed in the image of the rear
view camera.
ba8_e70ag.book Seite 87 Freitag, 5. Juni 2009 11:42 11
> Show the path of the smallest turning circle
on a flat road surface.
> When the steering wheel is turned, only one
turning line is displayed.
To display parking aid lines using iDrive, refer to page 87.
Parking using pathway and turning lines 1. Position the vehicle so that the turning lines lead into the margins of the parking space.
2. Turn the steering wheel so that the pathway lines coincide with the corresponding turn- ing line.
Obstacle marking
Their color gradation corresponds to the mark- ings in PDC. This helps estimate the distance to the object pictured. To display obstacle marking using iDrive, refer to page 87.
Activating assistance functions Several assistance functions can be active at the same time.
Select the "Parking aid lines" symbol.
Displaying parking aid lines 1. 2. Press the controller. Pathway and turning lines are displayed.
Displaying obstacle marking 1.
Select the "Display obstacle marking"
symbol.
2. Press the controller. Three-dimensionally-shaped markings are dis- played.
Image on the Control Display
Switching on the rear view camera using iDrive With PDC activated: 1.
Select the "Switch on rear view camera"
symbol.
2. Press the controller. The image of the rear view camera is displayed. The setting is stored for the remote control cur- rently in use.
Brightness With the rear view camera switched on: 1. Select the 2. Turn the controller until the desired setting
symbol.
is displayed and then press the controller.
> Three-dimensionally shaped markings can be displayed in the image of the rear view camera.
87
ba8_e70ag.book Seite 88 Freitag, 5. Juni 2009 11:42 11
Contrast With the rear view camera switched on: 1. Select the 2. Turn the controller until the desired setting
symbol.
is displayed and then press the controller.
Camera
The lens of the rear view camera is under the grasping lip of the liftgate. The presence of dirt can impair image quality. Clean the lens with a moist, nonabrasive cloth.
Driving stability control systems Your BMW is equipped with an extended array of systems designed to enhance and maintain vehicle stability under extreme conditions.
ABS Antilock Brake System ABS prevents locking of the wheels during braking. Safe steering response is maintained even during full braking. Active safety is thus increased. ABS is operational every time you start the engine. Braking safely, refer to page 132.
CBC Cornering Brake Control When braking during curves or when braking during a lane change, driving stability and steer- ing response are improved further.
Electronic brake-force distribution The system controls the brake pressure in the rear wheels to ensure stable braking behavior.
88
Brake assistant When you apply the brakes rapidly, this system automatically produces the maximum braking force boost and thus helps to achieve the short- est possible braking distance during full brak- ing. This system exploits all of the benefits pro- vided by ABS. Do not reduce the pressure on the brake pedal for the duration of the full braking.
DSC Dynamic Stability Control DSC prevents traction loss in the driving wheels when starting off and accelerating. The system also identifies unstable driving conditions, such as a loss of traction at the rear of the vehicle or sliding of the vehicle in its front wheels. In these cases, DSC helps the vehicle maintain a safe course within physical limits by reducing engine output and through braking actions in the indi- vidual wheels.
The laws of physics cannot be repealed, even with DSC. An appropriate driving style remains the responsibility of the driver. Therefore, do not restrict the additional safety margin with a risky driving style, as otherwise there is a risk of an accident.<
Deactivating DSC
Press and hold the button until the indicator lamp for DSC lights up and DSC OFF appears in the instrument panel, but do not press the but- ton for longer than approx. 10 seconds. DTC Dynamic Traction Control and DSC are deacti- vated together. Stabilizing interventions are now not carried out.
ba8_e70ag.book Seite 89 Freitag, 5. Juni 2009 11:42 11
A message appears on the Control Display. Please note any supplementary information that appears there. To increase vehicle stability, activate DSC again as soon as possible.
Activating DSC Press the button: the indicator lamp in the instrument panel goes out.
For better control
The indicator lamp flashes: DSC is controlling the drive forces and brake forces. The indicator lamp lights up: DSC and DTC are malfunctioning.
DSC deactivated:
The indicator lamp lights up and DSC OFF appears in the instrument panel.
DSC and DTC deactivated.
DTC Dynamic Traction Control DTC is a version of DSC in which the drive out- put is optimized for particular road conditions, e.g. unplowed snow-covered roads. The sys- tem assures the maximal drive output, but with reduced driving stability. It is therefore neces- sary to drive with appropriate caution. You may find it useful to briefly activate DTC under the following special circumstances: > When driving in sand, on snowy inclines, in slush or on unplowed, snow-covered road surfaces
> When rocking a stuck vehicle free or start-
ing off in deep snow, sand or on loose ground
> When driving with snow chains*
Activating DTC
Press the button: the indicator lamp for DSC lights up and TRACTION appears in the instru- ment panel.
For better control
The indicator lamp flashes: DTC is controlling the drive forces and brake forces. The indicator lamp lights up: DSC and DTC are malfunctioning.
DTC activated:
The indicator lamp lights up and TRAC- TION appears in the instrument panel.
DTC is activated.
Deactivating DTC Press the button again: the indicator lamp in the instrument panel goes out.
89
ba8_e70ag.book Seite 90 Freitag, 5. Juni 2009 11:42 11
xDrive xDrive is the 4-wheel drive system of your BMW. The combined effects of xDrive and DSC further optimize the traction and dynamic driv- ing characteristics. The 4-wheel drive system xDrive variably distributes the drive forces to the front and rear axle depending on the driving situation and prevailing road conditions.
Dynamic Performance Control*
The concept Dynamic Performance Control optimizes the handling characteristics of your BMW when starting off, cornering, and during evasive maneuvers. To achieve this, the system variably distributes the drive torque of the rear axle to the two rear wheels. This further increases the steering precision and tracking stability of your vehicle.
Display The Control Display shows how xDrive and Dynamic Performance Control are distributing the drive forces.
Press the BC button in the turn signal lever, refer to page 73, until the display appears. The current distribution of drive forces is indi- cated by arrows pointing to all four wheels. The highlighted arrows show the drive forces currently present. The longer an arrow is, the greater the drive forces in the associated wheel. The transparent arrows indicate the maximum value the drive forces over the last 10 seconds.
90
Malfunction Malfunctions are displayed via Check Control, refer to page 77.
HDC Hill Descent Control
The concept HDC is a system for driving downhill in steep terrain. This system reduces vehicle speed on steep downhill gradients, thus allowing you to maintain even better control of your BMW under these conditions. The vehicle moves at approximately walking speed without active intervention from the driver. HDC is available for activation at vehicle speeds below approx. 22 mph/35 km/h. When driving down steep hills with a speed below approx. 22 mph/35 km/h, the vehicle reduces speed automatically down to approximately walking speed, approx. 5 mph/8 km/h, and then main- tains this speed at a constant. Only use HDC in transmission positions D or R.
Increasing or reducing speed You can use the accelerator or brakes to vary this automatically controlled speed within a range extending from approx. 4 mph/6 km/h to 15 mph/25 km/h. You can specify a target speed within the same range by using the lever of the cruise control. With downhill grade over 10Ξ you can reduce the speed to approx. 3 mph/4 km/h. Pull the lever of the cruise control beyond the resis- tance point, arrow 3.
1 Increasing speed 2 Pull to the resistance point:
Reduce speed to approx. 4 mph/6 km/h
ba8_e70ag.book Seite 91 Freitag, 5. Juni 2009 11:42 11
3 Pull beyond the resistance point:
With downhill grade over 10Ξ, reduce speed to approx. 3 mph/4 km/h.
Activating HDC
Press the button; the LED lights up. The HDC display is shown in the instrument panel. The LED flashes when the brakes are applied automatically.
Deactivating HDC Press the button again. The LED and the HDC display go out. HDC is automatically deactivated at speeds over approx. 37 mph/60 km/h.
Displays* in instrument panel
1 Display for target speed 2 HDC display
Malfunction HDC is temporarily unavailable in the following situations due to a high brake temperature: > The LED in the button and the display HDC
go out during HDC operation.
> The LED in the button and the HDC display do not light up when the button is pressed.
Malfunction of driving stability control systems
When driving on poor roads, avoid using full throttle or pressing the accelerator beyond the kick-down point and also avoid heavy braking. Otherwise, the drive train may be damaged or accidents can occur.<
Adaptive Drive*
The concept Adaptive Drive reduces the body roll which occurs when cornering quickly or during fast evasive maneuvers. In addition, Adaptive Drive reduces the steering angle requirement, improves the running comfort and increases the dynamic driving characteristics of your BMW.
Chassis and suspension tuning You can choose between two types of chassis and suspension tuning. > Normal:
The comfortable basic setting offers opti- mum comfort when traveling.
> Sport:
The sporty basic setting offers increased driving agility.
91
ba8_e70ag.book Seite 92 Freitag, 5. Juni 2009 11:42 11
Selecting chassis and suspension tuning
Press the button. The system switches between the two chassis and suspension tuning settings. > Sport:
The LED in the button lights up and SPORT is displayed in the instrument panel.
> Normal:
The LED in the button goes out.
The selection of the chassis and suspension tuning setting is stored for the remote control currently in use.
Starting assistant The starting assistant enables you to start off conveniently on slopes. The parking brake is not required for this purpose. 1. Hold the vehicle with the footbrake. 2. Release the footbrake and immediately
drive off quickly.
The starting assistant holds the vehicle for approx. 2 seconds after releasing the footbrake. Depending on the load, the vehicle may also roll back slightly during this time. After releasing the footbrake, immediately start quickly, otherwise the starting assistant no longer holds the vehicle after approx. 2 seconds and it begins to roll back.<
92
Self-leveling suspension*
The concept The self-leveling suspension on the rear axle assures a continuous ground clearance. To do so, the height of the vehicle is measured by sensors at both rear wheels. If the actual height deviates from the defined height, e.g. due to loading of the vehicle, then this difference is compensated for very quickly. In addition, spring motions resulting from cor- nering or irregularities in the road surface are reduced to a minimum. The system functions automatically.
Malfunctions Malfunctions are displayed via Check Control, refer to page 77.
FTM Flat Tire Monitor*
The concept The Flat Tire Monitor detects a pressure loss in one tire by comparing the speeds of the individ- ual wheels during driving. In the event of a pressure loss, there is a change in the rolling circumference and therefore the rotation speed of the corresponding wheel. The system detects this change and reports it as a flat tire.
Function requirements In order to assure the reliable reporting of a flat tire, the system must be initialized for the cor- rect tire inflation pressure.
The initialization must be repeated after each time the tire inflation pressure is cor-
rected and after every tire or wheel change.<
System limits
The Flat Tire Monitor cannot indicate sudden severe tire damage caused by outside factors and does not detect a natural, even pressure drop in all four tires.<
ba8_e70ag.book Seite 93 Freitag, 5. Juni 2009 11:42 11
In the following situations, the system could be delayed or malfunction: > System has not been initialized > Driving on snowy or slippery road surface > Sporty driving style: slip in the drive wheels,
high lateral acceleration
> Driving with snow chains* When you are driving with the compact wheel* the Flat Tire Monitor is unable to function.
Initializing system
The initialization finishes during driving, which can be interrupted at any time.
When driving resumes, the initialization is con- tinued automatically. Do not initialize the sys- tem when driving with snow chains* or with the compact wheel*.< 1. "Vehicle Info" 2. "Vehicle status" 3. "Reset"
4. Start the engine – do not drive away. 5. Start the initialization using "Reset". 6. Start to drive. The initialization finishes during driving. "Sta- tus: Flat Tire Monitor active " is displayed again on the Control Display.
Indication of a flat tire
The warning lamp lights up red. A message appears on the Control Dis- play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation pressure loss. If you have deactivated DSC, it will be activated automatically.
1. Cautiously reduce speed to below 50 mph/ 80 km/h. Avoid sudden braking and steer- ing maneuvers. Do not exceed a speed of 50 mph/80 km/h. In case of further air loss of the defective wheel, its position will be indicated to you on the Control Display.
If the vehicle is not equipped with run- flat tires as provided at the factory,
refer to page 237, do not continue driving. Continuing to drive with a flat tire could cause severe accidents.<
2. At the next opportunity, check the air pres-
sure in all four tires.
3.
If the tire inflation pressure in all four tires is correct, the Flat Tire Monitor may not have been initialized. The system must then be initialized.< In the event of complete tire pressure loss, 0 psi/0 kPa, you can estimate the possible distance for continued driving on the basis of the following guide values: > With a light load:
1 to 2 persons without luggage: approx. 155 miles/250 km
> With a medium load:
2 persons, cargo bay full, or 4 persons without luggage: approx. 95 miles/150 km
> With a full load:
4 or more persons, cargo bay full: approx. 30 miles/50 km Drive cautiously and do not exceed speeds of 50 mph/80 km/h or else you
run the risk of causing an accident. In the event of pressure loss, vehicle handling changes. This includes reduced tracking stability in braking, extended braking distance and altered natural steering characteristics. If unusual vibrations or loud noises occur while the vehicle is being driven, this can indicate final failure of the damaged tire. Reduce speed and stop at a suitable location as soon as possible, otherwise pieces of the tire could become detached and cause an accident. Do not con- tinue driving, but instead contact the BMW Sports Activity Vehicle Center.<
93
ba8_e70ag.book Seite 94 Freitag, 5. Juni 2009 11:42 11
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. 1. "Vehicle Info" 2. "Vehicle status" 3. "Flat Tire Monitor"
The status is displayed.
TPM Tire Pressure Monitor*
The concept TPM checks the tire inflation pressure in the four mounted tires. The system reports when the tire inflation pressure has dropped consid- erably in one or several tires.
Function requirements In order to assure the reliable reporting of a flat tire, the system must have been reset with the correct tire inflation pressure. Always use wheels with TPM electronics, oth- erwise fault-free operation of the system is not ensured.
Reset the system again after each correc- tion of the tire inflation pressure and after
every tire or wheel change.<
System limits
TPM cannot announce sudden serious tire damage caused by external influ-
ences.< The system does not function properly if it has not been reset, e.g. a flat tire is reported despite correct tire inflation pressures.
94
The system is inactive and cannot display a flat tire if a wheel has been mounted without TPM electronics, e.g. a compact wheel*, or if TPM is temporarily interfered with by other systems or devices which use the same radio frequency.
Status display on Control Display The tire and system status is indicated by the color of the tires. TPM takes the fact that the tire pressure changes during driving into account. A correc- tion is only required if requested by TPM with the color.
Green The tire pressure matches the learned set state. "TPM active" is displayed on the Control Dis- play.
One wheel is yellow Flat tire or a major drop in inflation pressure in the indicated tire. A message appears on the Control Display.
All wheels are yellow Flat tire or a major drop in inflation pressure in several tires. A message appears on the Control Display.
Gray The system cannot detect a flat tire. Reasons for this can be: > TPM is being reset > Temporary interference due to systems or
devices which use the same radio fre- quency
> Malfunction
Resetting system
Reset the system again after each correc- tion of the tire inflation pressure and after
every tire or wheel change.< Resetting finishes during driving, which can be interrupted at any time. When driving resumes, resetting is continued automatically.
ba8_e70ag.book Seite 95 Freitag, 5. Juni 2009 11:42 11
Do not reset the system when driving with a compact wheel*. 1. "Vehicle Info" 2. "Vehicle status" 3. "Reset TPM"
4. Start the engine – do not drive away. 5. Start the initialization using "Reset TPM". 6. Start to drive.
The tires are shown in gray and "Resetting TPM..." is displayed.
After a few minutes of driving, the set tire infla- tion pressures in the tires are applied as the set values to be monitored. Resetting finishes dur- ing driving. On the Control Display, the tires are shown in green and "Status: TPM active " is displayed again.
If a flat tire is detected during resetting and applying the tire inflation pressures, all tires are shown in yellow on the Control Dis- play. The message "Low tire!" is shown.<
Message with low tire inflation pressure
The warning lamp lights up yellow. A message appears on the Control Dis- play. In addition, an acoustic signal
sounds. There is a flat tire or extensive inflation pressure loss. 1. Cautiously reduce speed to below 50 mph/ 80 km/h. Avoid sudden braking and steer- ing maneuvers. Do not exceed a speed of 50 mph/80 km/h.
If the vehicle is not equipped with run- flat tires as provided at the factory,
refer to page 237, do not continue driving.
2.
Continuing to drive with a flat tire could cause severe accidents.< In the event of complete tire pressure loss, 0 psi/0 kPa, you can estimate the possible distance for continued driving on the basis of the following guide values: > With a light load:
1 to 2 persons without luggage: approx. 155 miles/250 km
> With a medium load:
2 persons, cargo bay full, or 4 persons without luggage: approx. 95 miles/150 km
> With a full load:
4 or more persons, cargo bay full: approx. 30 miles/50 km Drive cautiously and do not exceed speeds of 50 mph/80 km/h or else you
run the risk of causing an accident. In the event of pressure loss, vehicle handling changes. This includes reduced tracking stability in braking, extended braking distance and altered natural steering characteristics. If unusual vibrations or loud noises occur while the vehicle is being driven, this can indicate final failure of the damaged tire. Reduce speed and stop at a suitable location as soon as possible, otherwise pieces of the tire could become detached and cause an accident. Do not con- tinue driving, but instead contact the BMW Sports Activity Vehicle Center.<
Status display The current status of the TPM Tire Pressure Monitor can be displayed on the Control Dis- play, e.g. whether or not the TPM is active. 1. "Vehicle Info" 2. "Vehicle status"
95
ba8_e70ag.book Seite 96 Freitag, 5. Juni 2009 11:42 11
3. "Tire Pressure Monitor - TPM"
The status is displayed.
Malfunction
The yellow warning lamp flashes and then lights up continuously. The tires are shown in gray on the Control Dis- play and a message is displayed. No flat tire can be detected. A message like this is displayed in the following situations: > In case of a malfunction:
Have the system checked
> If a wheel without TPM electronics is
mounted, e.g. a compact wheel*
> If TPM is temporarily interfered with by other systems or devices which use the same radio frequency
Explanation according to the NHTSA/ FMVSS 138 Tire Pressure Monitoring Systems Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommended by the vehicle manufacturer on the vehicle plac- ard or tire inflation pressure label. (If your vehi- cle has tires of a different size than the size indi- cated on the vehicle placard or tire inflation pressure label, you should determine the proper tire inflation pressure for those tires.) As an added safety feature, your vehicle has been equipped with a tire pressure monitoring system (TPMS) that illuminates a low tire pres- sure telltale when one or more of your tires is significantly underinflated. Accordingly, when the low tire pressure telltale illuminates, you
96
should stop and check your tires as soon as possible, and inflate them to the proper pres- sure. Driving on a significantly underinflated tire causes the tire to overheat and can lead to tire failure. Underinflation also reduces fuel effi- ciency and tire tread life, and may affect the vehicle's handling and stopping ability. Please note that the TPMS is not a substitute for proper tire maintenance, and it is the driver's responsibility to maintain correct tire pressure, even if underinflation has not reached the level
