sensor BMW 135I 2009 E81 User Guide

Maintenance
118
Maintenance
BMW Maintenance System
The BMW Maintenance System supports the
preservation of the traffic and operating safety
of your BMW. The objective is to optimize
efforts with respect to minimal vehicle mainte-
nance costs.
If and when you come to sell your BMW, a com-
prehensive record of servicing will prove a sig-
nificant benefit.
Condition Based Service CBS
Sensors and special algorithms take the differ-
ent driving conditions of your BMW into
account. Condition Based Service uses this to
determine the current and future service
requirements. By letting you define a service
and maintenance regimen that reflects your
own individual requirements, the system builds
the basis for trouble-free driving.
In the instrument cluster, you can have the
remaining times or distances for selected main-
tenance tasks and any legally prescribed dates
displayed, refer to page61:
>Engine oil
>Brake pads: separately for front and rear
>Brake fluid
>Vehicle check
>Legally mandated inspections depending
on local regulations
Service data in the remote control
Your vehicle continuously stores service-
requirement information in the remote control
while you are driving. Your BMW Service Advi-
sor can read out this data from the remote con-
trol unit, and propose an optimized mainte-
nance approach. Whenever you take your car in
for servicing you should therefore hand your
BMW Service Advisor the remote control unit
that you last used.
Make sure that the date in the instrument
cluster is always set correctly, refer to
page62; otherwise the effectiveness of Condi-
tion Based Service CBS is not assured.<
Service and Warranty Information
Booklet for US models and Warranty
and Service Guide Booklet for
Canadian models
Please consult your Service and Warranty Infor-
mation Booklet for US models and Warranty
and Service Guide Booklet for Canadian models
for additional information on service require-
ments.
BMW recommends that you have service
and repair operations performed at your
BMW center.
Take the time to ensure that these service pro-
cedures are confirmed by entries in your vehi-
cle's Service and Warranty Information Booklet
for US models and Warranty and Service Guide
Booklet for Canadian models. These entries
verify that your vehicle has received the speci-
fied regular maintenance.<

Care
120
Care
Care products
Regular cleaning and care contributes signifi-
cantly to the value retention of your BMW.
BMW recommends cleaning and caring for your
vehicle with products that are approved by
BMW for this purpose.
Your BMW center will be happy to advise you on
the products and services available for cleaning
and caring for your BMW.
Original BMW CareProducts have been
material tested, laboratory checked and
proven in the field, and offer optimal care and
protection for your vehicle.<
Do not use cleaners that contain alcohol
or solvents as these may result in dam-
age.<
Cleaning agents can contain substances
that are dangerous or hazardous to your
health. Therefore, follow the warning and safety
instructions on the packaging. When cleaning
inside the vehicle, always open the doors or
windows of the vehicle. In enclosed areas, pro-
vide for sufficient ventilation. Only use products
designed for cleaning vehicles.<
Exterior care
Washing the vehicle
Especially during the winter months,
ensure that the vehicle is washed more
frequently. Heavy soiling and road salt can lead
to vehicle damage.<
After washing the vehicle, apply the
brakes briefly to dry them, otherwise
water can reduce braking efficiency over the
short term and brake discs can corrode.<
Automatic car washes
Preference should be given to cloth car washes.Do not use high-pressure car washes,
otherwise water may drip into the vehicle
around the windows.<
Before driving into a car wash, ensure that it is
suitable for your BMW. Check the following:
>Dimensions of your vehicle, refer to
page147.
>If necessary: fold in the exterior mirrors,
refer to page42
>Maximum permissible tire width
>In convertibles, do not treat the convertible
top with wax. Ensure that a program is avail-
able that does not apply wax or is designed
specifically for convertibles.
Preparations before driving into an automatic
car wash:
>Unscrew the rod antenna
*.
>Deactivate the rain sensor
* to prevent unin-
tentional wiping.
>Remove additional attachments, e.g.
spoiler or telephone antennas, if there is a
possibility that they could be damaged.
Automatic transmission
Before driving into an automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1.Insert the remote control, even with conve-
nient access, into the ignition lock.
2.Engage transmission position N.
3.Release the parking brake.
4.Switch off the engine.
5.Leave the remote control in the ignition lock
so that the vehicle can roll.
Steam jets / high-pressure washers
When using steam jets or high-pressure
washers, ensure that you maintain suffi-
cient clearance to the vehicle and do not exceed
a temperature of 1407/606.
Insufficient clearance or excessive pressure or

Reference
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Controls
Driving tips
Mobility
121
temperature can lead to component damage or
water penetration. Follow the operating instruc-
tions for the steam jet or high-pressure
washer.<
When using high-pressure washers, do
not spray against the sensors and cam-
eras, e.g. of the Park Distance Control or Rear
View Camera, for an extended period and main-
tain a distance of at least 12 in/30 cm.<
Manual car wash
When washing the vehicle by hand, use large
quantities of water and car shampoo if neces-
sary. Clean the vehicle with a sponge or wash-
ing brush, applying light pressure only.
Before cleaning the windshield, deacti-
vate the rain sensor or switch off the igni-
tion to prevent unintentional activation of the
wipers.<
Observe local regulations pertaining to
washing vehicles by hand.<
Headlamps
Do not rub them dry and do not use abrasive or
corrosive cleaning agents.
Remove contamination, such as insects, by
soaking with shampoo or insect remover and
then rinsing with plenty of water.
Thaw ice with a windshield de-icer and do not
use an ice scraper.
Windows
Clean the inside and outside surfaces of the
windows and the mirrors with window cleaner.
Do not clean the mirrors with cleaners
containing quartz.<
Wiper blades
Clean with soapy water and replace regularly to
avoid streaking.
Wax and preservative residue and con-
tamination on the window can lead to
streaking when operating the windshield wip-
ers, leading to premature wear of the wiper
blades and causing the rain sensor to malfunc-
tion.<
Convertible top care
The appearance and life of the convertible top
depend on proper care and operation.
Follow these instructions:
>Do not fold the convertible top into the con-
vertible top box when the top is wet or fro-
zen, as this may cause water spots, mold
stains or chafed areas.
>If water spots occur on the inside headliner
despite precautions, remove them using a
microfiber cloth and interior cleaner.
>If the vehicle is parked in enclosed areas for
extended periods, ensure that there is suffi-
cient ventilation.
>Remove bird droppings immediately, as
their corrosive ingredients attack the con-
vertible top and damage the rubber seals.
To remove stains from the convertible
top, do not use stain removers, paint thin-
ners, solvents, benzine or similar substances.
These substances may damage the rubber
parts. Improper care and cleaning may cause
the convertible top and convertible top seams
to become leaky.<
To remove heavy soiling, use a special convert-
ible top cleaner.
Follow the manufacturer's instructions for use.
After washing the convertible top three to five
times, treat it with an impregnating agent.
Paintwork care
Regular care contributes to value retention and
protects the paintwork against the long-term
effects of damaging substances.
Region-specific environmental influences can
damage the vehicle paintwork. Therefore, it is
important to adapt the frequency and scope of
car care accordingly.
Immediately remove very aggressive sub-
stances, e.g. spilled fuel, oil, grease, tree resin
or bird droppings, to prevent damage to the
paintwork.

Care
122
Repairing paintwork damage
Immediately repair scratches or similar
damage, such as that caused by stones
hitting the vehicle, where necessary to prevent
rusting.<
BMW recommends having paintwork damage
repaired by a professional paint repair work-
shop according to BMW specifications using
original BMW paint materials.
Preservation
A preservation treatment is necessary when
water no longer beads off of the clean paintwork
surface. Only use products for paintwork pres-
ervation that contain carnauba or synthetic
waxes.
Rubber seals
Treat only with water or rubber care products.
Do not use silicon-containing care prod-
ucts on rubber seals, otherwise noise and
damage could occur.<
Chrome parts
Carefully clean vehicle parts, such as the radia-
tor grill, door handles or window frames, with
copious quantities of water and a shampoo
additive. For additional treatment, use a chrome
polish.
Light-alloy wheels
For technical reasons, dust is generated during
braking that is deposited on the light-alloy
wheels. Remove the dust regularly using acid-
free rim cleaner.
Do not use aggressive, acidic, strongly
alkaline and abrasive cleaning agents or
steam jets over 1407/606, otherwise dam-
age may occur.<
Outside sensors / cameras
Keep the sensors and cameras on the
outside of the vehicle, e.g. those of Park
Distance Control, clean and free of ice to ensure
that they remain fully functional.<
Interior care
Upholstery / cloth trim
Vacuum regularly with a vacuum cleaner to
remove superficial dirt.
To treat severe stains, e.g. from beverages, use
a soft sponge or lint-free microfiber cloth in
combination with suitable interior cleaners. Fol-
low the instructions on the packaging.
Clean the upholstery down to the seams
using a sweeping motion. Avoid strong
rubbing.<
Opened Velcro fasteners on pants or
other articles of clothing can damage the
seat covers. Ensure that Velcro fasteners are
closed.<
Leather / leather trim
The leather used by BMW is a high quality
natural product. Slight irregularities in the
leather are a typical characteristic of natural
leather.<
Dust and road grit in the pores and folds of the
leather have an abrasive effect, leading to
increased wear and causing the leather surface
to become brittle prematurely. Therefore, fre-
quently clean the leather of dust using a cloth or
vacuum cleaner.
In particular, ensure that light-colored leather is
cleaned regularly as it has a tendency to soil
more easily.
Treat the leather twice a year using a leather
lotion as dirt and grease will gradually attack the
leather's protective layer.
Carpets / cargo bay
You can vacuum the carpets and floor mats or
clean them with interior cleaner if heavily soiled.
The floor mats can be removed for cleaning.
When replacing the mats, ensure that the seat
rails do not extend over the floor mats, as this
may damage the mats.
Lint on the floor mats occurs for technical rea-
sons and can be removed by vacuuming
repeatedly.

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123
Interior plastic parts
>Imitation leather surfaces
>Lamp glasses
>Display pane of instrument cluster
>Matt parts
Clean with water and solvent-free plastic
cleaner if necessary.
Fine wood parts
Clean fine wood trim and fine wood parts with a
damp cloth. Wipe dry with a soft cloth.
Safety belts
Do not clean with cleaning agents as
these may destroy the fabric.<
Interior sensors / cameras
To clean interior sensors and cameras, e.g. of
the High-Beam Assistant, use a lint-free cloth
moistened with glass cleaner.
Displays
To clean the displays, e.g. of the radio or instru-
ment cluster, use a display cleaning cloth or a
soft, non-abrasive, lint-free cloth.
Avoid applying excessive pressure when
cleaning the displays, otherwise damage
may occur.<
Do not use chemical or abrasive house-
hold cleaning agents. Keep all types of
fluid away from the device. Otherwise, surfaces
or electrical components may be corroded or
damaged.<
CD/DVD drives
Do not use a cleaning CD, as it may dam-
age parts of the drive.<
Vehicle storage
If your vehicle is to be decommissioned for
longer than three months, your BMW center or
a workshop that operates according to BMW
specifications will be glad to advise you.

Everything from A to Z
152
Everything from A to Z
Index
A
ABS Antilock Brake
System64
Accessories, refer to The
individual vehicle5
Accident, reporting, refer to
Emergency Request130
Activated-charcoal filter84
Active steering70
Adaptive Head Light76
Additives
– coolant117
– engine oil116
Airbags71
– sitting safely35
– warning lamp72
Air conditioner79
Air distribution
– automatic83
– individual80
Air flow rate80,83
Airing, refer to
Ventilation81,84
Air outlets, refer to Air
vents79
Air pressure, checking, refer
to Tire inflation
pressure106
Air recirculation, refer to
Recirculated-air
mode80,83
Air vents79
AKI, refer to Fuel
specifications104
Alarm system24
– avoiding unintentional
alarms25
– interior motion sensor25
– switching off an alarm25
– tilt alarm sensor25
All-season tires, refer to
Winter tires113Ambient air, refer to
Recirculated-air
mode80,83
Antifreeze
– coolant117
– washer fluid53
Antilock Brake System
ABS64
Anti-theft alarm system, refer
to Alarm system24
Anti-theft system19
Approved axle loads, refer to
Weights149
Approved gross vehicle
weight, refer to Weights149
Armrest, refer to Center
armrest
88
Ashtray90
Assistance systems, refer to
Dynamic Stability Control
DSC65
AUC Automatic recirculated-
air control83
Automatic
– air distribution83
– air flow rate83
– cruise control54
– headlamp control74
Automatic car wash, refer to
Car wash98
Automatic car washes120
Automatic climate control79
– automatic air distribution83
Automatic curb monitor42
Automatic lamps
– refer to Welcome lamps74
Automatic recirculated-air
control AUC83Automatic transmission with
Steptronic49
– interlock50
– selector lever lock50
– shiftlock50
– towing132
– tow-starting132
AUTO program for automatic
climate control83
Average fuel consumption58
– setting the units60
Average speed58
Avoiding unintentional
alarms25
Axle loads, refer to
Weights149
B
Backrests, refer to Seats36
Backrest width adjustment37
Back seats, refer to Rear seats
– adjusting head restraints38
Backup lamp, replacing
bulb127
Bag for skis, refer to Ski
bag92
Band-aids, refer to First-aid
pouch130
Bar, refer to Tow-starting,
towing away133
Battery128
– charging128
– disposal27,128
– jump starting131
– temporary power failure128
Battery renewal
– remote control for vehicle27
Being towed132
Belts, refer to Safety belts41
Belt tensioner, refer to Safety
belts41

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Mobility
153
Beverage holders, refer to
Cup holders89
Blower, refer to Air flow
rate80,83
BMW
– car shampoo123
BMW Maintenance
System118
Bottle holders, refer to Cup
holders89
Brake assist, refer to Dynamic
Brake Control65
Brake fluid
– service requirements61
Brake Force Display70
Brake lamps
– Brake Force Display70
– replacing bulb127
Brake pads, breaking in96
Brake rotors98
– brakes96
– breaking in96
Brakes
– ABS65
– BMW Maintenance
System118
– braking safely98
– breaking in96
– parking brake49
– service requirements61
Brake system96
– BMW Maintenance
System118
– breaking in96
– disc brakes98
Breakdown services, refer to
Roadside Assistance130
Breaking in the clutch96
Break-in period96
Bulb changing, refer to Lamps
and bulbs124
Bulbs, changing124
Button for starting the
engine47
Buttons on the steering
wheel11C
California Proposition 65
warning6
Can holders, refer to Cup
holders89
Capacities150
Capacity of the cargo bay149
Car battery, refer to Vehicle
battery128
Car care, refer to Care120
Care120
– automatic car washes120
– care products120
– carpets122
– CD/DVD drives123
– chrome parts122
– convertible top121
– displays123
– exterior120
– fine wood parts123
– headlamps121
– high-pressure washer120
– interior122
– leather122
– light-alloy wheels122
– paintwork121
– plastic parts123
– rubber seals122
– safety belts123
– sensors and cameras123
– upholstery and cloth
trim122
– washing the car
manually121
– windows121
– wiper blades121
Cargo, securing100
Cargo bay
– capacity149
– convenient access27
– enlarging, refer to Through-
loading system91
– lamp, refer to Interior
lamps77
– lid, refer to Luggage
compartment lid23
– opening from outside23Cargo bay lid, refer to
Luggage compartment
lid23
Cargo bay net, refer to
Securing cargo100
Cargo loading99
– securing cargo100
– stowing cargo99
– vehicle99
Car jack
– jacking points128
Car key, refer to Integrated
key/remote control
18
Car phone
– installation location, refer to
Center armrest88
– refer to separate Owner's
Manual
Car shampoo123
Car wash98
Catalytic converter, refer to
Hot exhaust system97
Center armrest88
Center brake lamp, replacing
bulb127
Center console, refer to
Around the center
console14
Central key, refer to Integrated
key/remote control18
Central locking
– from inside22
– from outside19
Central locking system19
– convenient access26
Changes, technical, refer to
For your own safety5
Changing wheels127
Chassis number, refer to
Engine compartment115
Check Control62
Checking oil level115
Child-restraint fixing system
LATCH45
Child-restraint systems44
Child seats44
Chrome parts123
Chrome polish123
Cigarette lighter90

Reference
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Controls
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Initializing
– compass, refer to
Calibrating88
Initializing, Flat Tire Monitor
FTM66
Instrument cluster12
Instrument lighting77
Integrated key18
Integrated universal remote
control85
Interior lamps77
– remote control20
Interior motion sensor25
Interior rearview mirror42
– automatic dimming
feature43
– compass87
Interlock50
Intermittent mode of the
wipers52
J
Jacking points128
Jumpering, refer to Jump
starting131
Jump starting131
K
Key, refer to Integrated key/
remote control18
Keyless go, refer to
Convenient access26
Keyless opening and closing,
refer to Convenient
access26
Key Memory, refer to Personal
Profile18
Kick-down50
Knock control104
L
Lamps
– Adaptive Head Light76
– instrument lighting77
– interior lighting77Lamps, refer to Parking lamps/
low beams74
Lamps and bulbs, replacing
bulbs124
Lashing eyes, refer to
Securing cargo100
LATCH child-restraint fixing
system45
Leather care122
LED Light-emitting
diodes124
Length, refer to
Dimensions147
License plate lamp, replacing
bulb127
Light-alloy wheels122
Light-emitting diodes
LED124
Lighter90
– socket90
Lighting
– lamps and bulbs124
– of instruments77
– of vehicle, refer to Lamps74
Light switch74
Limit, refer to Speed limit
– indicator lamp142
Load99
Load securing equipment,
refer to Securing cargo100
Lock buttons of doors, refer to
Locking23
Locking
– adjusting confirmation
signal21
– from inside23
– from outside20
– without remote control, refer
to Convenient access26
Locking and unlocking doors
– from inside22
– from outside19
Low-beam headlamps74
– automatic74
– replacing bulbs125
Lower back support, refer to
Lumbar support37
Luggage compartment, refer
to Cargo bayLuggage compartment lid23
– convenient access27
– emergency release24
– opening from outside23
– unlocking with remote
control20
Luggage rack, refer to Roof-
mounted luggage rack100
Lumbar support37
M
M+S tires, refer to Winter
tires113
Maintenance, refer to
– BMW Maintenance
System118
– Service booklet
Maintenance system118
Malfunction warnings, refer to
Check Control62
Manual car wash121
Manual operation
– door lock22
– fuel filler door104
– glass roof30
– transmission lock, automatic
transmission51
Manual operation with
automatic transmission50
Manual transmission49
Maximum cooling82
Maximum speed
– for winter tires113
Microfilter/activated-charcoal
filter for automatic climate
control84
Microfilter for heating or air
conditioner81
Microphone for telephone14
Mirror dimming feature43
Mirrors41
– automatic curb monitor42
– exterior mirrors41
– heating42
– interior rearview mirror42
Mobile phone, installation
location, refer to Center
armrest88

Everything from A to Z
158 Mobile phone, refer to the
separate Owner's Manual
Modifications, technical, refer
to For your own safety5
Monitoring system for tire
pressures, refer to Flat Tire
Monitor66
Multifunctional steering
wheel, refer to Buttons on
the steering wheel11
Multifunction switch
– refer to Turn signals/
headlamp flasher51
– refer to Wiper system52
N
Neck support, refer to Head
restraints37
Nets, refer to Storage
compartments89
New tires112
Number of cylinders, refer to
Engine data146
O
OBD socket, refer to Socket
for On-Board Diagnosis119
Octane ratings, refer to Fuel
specifications104
Odometer56
Oil, refer to Engine oil115
Oil consumption115
Oil level115
Old batteries, refer to
Disposal128
Onboard tool kit124
Opening and closing
– convenient access26
– from inside22
– from outside19
– using the door lock22
– via the remote control19
Outlets, refer to
Ventilation81,84
Output, refer to Engine
data146Outside temperature
display56
– changing unit of measure60
– on computer60
Outside temperature
warning56
Overriding selector lever
lock51
P
Paintwork care121
Park assistant, refer to Park
Distance Control64
Park Distance Control PDC64
Parking
– vehicle48
Parking aid, refer to Park
Distance Control PDC64
Parking brake49
– indicator lamp49
– manual activation49
Parking lamps/low beams74
– replacing bulbs125
Parts and accessories, refer to
The individual vehicle5
Passenger-side mirror tilt
function42
Pathway lighting74
Personal Profile18
Pinch protection system
– glass roof, electric29
– windows28
Placing a call, refer to
telephone owner's manual
Polish123
Pollen, refer to Microfilter81
Pollen, refer to Microfilter/
activated-charcoal filter84
Power windows27
Power windows, refer to
Windows27
Pressure, tires106
Pressure monitoring of tires,
refer to Flat Tire Monitor66
Pressure monitoring of tires,
refer to Tire Pressure
Monitor TPM68Programmable buttons on the
steering wheel11
Protection function, refer to
Pinch protection system
– glass roof, electric29
– windows28
Providing medical assistance,
refer to First add pouch130
Puncture
– Flat Tire Monitor66R
Radio position, refer to Radio
readiness47
Radio readiness47
– switched off47
– switched on47
Rain sensor53
Reading lamps78
Rear lamps, refer to Tail
lamps126
Rear-mounted luggage
rack101
Rear seats
– adjusting head restraints38
– folding down backrests91
Rearview mirror, refer to
Mirrors41
Rear window defroster81,84
Recirculated-air mode80,83
Recirculation of air, refer to
Recirculated-air
mode80,83
Reflectors, refer to Tail
lamps126
Refueling104
Releasing
– hood114
Remaining distance, refer to
Cruising range58

Everything from A to Z
160 Speed
– for winter tires113
Speed display, refer to
Speedometer12
Speedometer12
Sport program, automatic
transmission with
Steptronic50
Spray nozzles, refer to
Windshield washer
nozzles53
Stability control,
refer to Driving stability
control systems64
Start/stop button47
– starting the engine48
– switching off the engine48
Starting, refer to Starting the
engine48
Starting assistance, refer to
Jump starting131
Starting the engine
– start/stop button47
Status of this Owner's Manual
at time of printing5
Steam jet120,121
Steering wheel43
– adjustment43
– buttons on steering
wheel11
– heating43
Steering with variable ratio,
refer to Active steering70
Steptronic, refer to Automatic
transmission with
Steptronic49
Storage123
Storage compartment
package89
Storage compartments89
Storing
– seat position, refer to Seat
and mirror memory39
– telephone numbers, refer to
separate Owner's Manual
Storing tires113
Stowage, refer to Storage
compartments89Summer tires, refer to Wheels
and tires106
Switches, refer to Cockpit10
Switching off
– engine48
Switching off the engine
– start/stop button47
Switching the cooling function
on and off84
Symbols4
T
Tachometer56
Tail lamp, refer to Tail
lamps126
– replacing bulb127
Tail lamps126
– replacing bulb127
Tank contents, refer to
Capacities150
Technical changes5
Technical data146
Telephone, installation
location, refer to Center
armrest88
Telephone, refer to separate
Owner's Manual
Temperature, setting for
automatic climate
control81,82
Temperature display
– outside temperature56
– outside temperature
warning56
– setting the units60
Tempomat, refer to Cruise
control54
Thigh support36
Third brake lamp, refer to
Center brake lamp127
Three-point safety belt41
Through-loading system91
Tilt alarm sensor25
Tilt function, passenger-side
mirror42
Tire inflation pressure106
– loss67Tire pressure monitoring,
refer to Flat Tire Monitor66
Tire Pressure Monitor
TPM68
– resetting the system68
– system limitations68
– warning lamp69
Tire puncture, refer to Flat Tire
Monitor67
Tire Quality Grading110
Tires
– age110,112
– air loss69
– breaking in96
– changing, refer to Changing
wheels127
– condition111
– damage111
– inflation pressure106
– labels110
– minimum tread depth111
– new tires112
– pressure monitoring, refer to
Flat Tire Monitor66
– pressure monitoring, refer to
Tire Pressure Monitor
TPM68
– puncture67
– retreaded112
– Run-Flat Tires112
– size110
– wear indicators, refer to
Minimum tread depth111
– winter tires113
Tools, refer to Onboard tool
kit124
Torque, refer to Engine
data146
Tow bar133
Tow fitting132
Tow fittings for tow-starting
and towing away132
Towing132
– car with automatic
transmission132
– methods133
Towing and tow-starting132
Tow rope133
Tow-starting132