exhaust system BMW 328I CONVERTIBLE 2008 E93 Owner's Manual

Notes
6 to the vehicle, compromise its safety, interfere
with the vehicle's electrical system or affect the
validity of the BMW Limited Warranty. See your
BMW center for additional information.<
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any automotive
repair establishment or individual using any cer-
tified automotive part.<
California Proposition 65 warning
California law requires us to issue the following
warning:
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the interior fur-
nishings in a vehicle, contain or emit chemicals
known to the State of California to cause cancer
and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and
certain products of component wear contain or
emit chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
Battery posts, terminals and related accesso-
ries contain lead and lead compounds. Wash
your hands after handling.
Used engine oil contains chemicals that have
caused cancer in laboratory animals. Always
protect your skin by washing thoroughly with
soap and water.<
Service and warranty
We recommend that you read this publication
thoroughly.
Your BMW is covered by the following warran-
ties:
>New Vehicle Limited Warranty
>Rust Perforation Limited Warranty
>Federal Emissions System Defect Warranty
>Federal Emissions Performance Warranty
>California Emission Control System Limited
Warranty
Detailed information about these warranties is
listed in the Service and Warranty Information
Booklet for US models or in the Warranty and
Service Guide Booklet for Canadian models.
Reporting safety defects
For US customers
The following only applies to vehicles owned
and operated in the US.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration,
NHTSA, in addition to notifying BMW of North
America, LLC, P.O. Box 1227, Westwood, New
Jersey 07675-1227, Telephone 1-800-831-
1117.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However,
NHTSA cannot become involved in individual
problems between you, your dealer, or BMW of
North America, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go to
http://www.safercar.gov; or write to: Adminis-
trator, NHTSA, 400 Seventh Street, SW.,
Washington, DC 20590. You can also obtain
other information about motor vehicle safety
from http://www.safercar.gov

Driving tips
125Reference
At a glance
Controls
Communications
Navigation
Entertainment
Mobility
Drive defensively
Avoid unnecessary acceleration and braking
maneuvers. To do so, keep an adequate dis-
tance to the forward vehicle. A defensive and
smooth driving style keeps fuel consumption
down.
Avoid high engine speeds
Only use first gear when setting off. In second
and higher gears, accelerate without hesitation
or pauses. When accelerating, shift up before
reaching high engine speeds.
When you reach the desired speed, shift into
the highest applicable gear and drive with the
engine speed as low as possible and at a con-
stant speed.
As a rule: driving at low engine speeds lowers
fuel consumption and reduces wear.
Coasting
When approaching a red light, take your foot off
the accelerator and coast to a stop in the high-
est applicable gear.
O n a d o w n h il l s lo p e , t a k e y o u r f o o t o f f t h e a c c el -
erator and coast in a suitable gear.
The fuel supply is interrupted when coasting.
Switch off the engine during lengthy
stops
Switch off the engine when stopping for lengthy
periods, e.g. at traffic lights, railroad crossings
or in traffic congestions. You achieve fuel sav-
ings even if standing time is as short as approx.
4 seconds.
Switch off functions you do not need at
the moment
Functions such as the air conditioner and the
seat or rear window heating draw large amounts
of power and consume additional fuel. Espe-
cially in city traffic and in stop and go driving
they have a considerable impact. Therefore,
switch these functions off when they are not
really needed.
Have the vehicle serviced
Have the vehicle serviced regularly to achieve
good economy and a long vehicle life. BMW
recommends having the vehicle serviced at a
BMW center. Also note the BMW service sys-
tem, refer to page229.
General driving notes
Close the luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is closed. Other-
wise, exhaust fumes could enter the interior of
the vehicle.<
If the vehicle must be driven with the luggage
compartment lid open:
1.Close all windows and the glass roof.
2.Greatly increase the air volume of the auto-
matic climate control system, refer to
page106.
Hot exhaust system
In all vehicles, extremely high tempera-
tures are generated in the exhaust sys-
tem. Do not remove the heat shields installed
adjacent to various sections of the exhaust sys-
tem, and never apply undercoating to them.
When driving, standing at idle and while park-
ing, take care to avoid possible contact
between the hot exhaust system and any highly
flammable materials such as hay, leaves, grass,
etc. Such contact could lead to a fire, with the
risk of serious personal injuries and property
damage. Do not touch hot exhaust tail pipes.
Otherwise there is a risk of burns.<
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a wedge
of water can form between tires and road sur-
face. This situation, known as hydroplaning,
means that the tire can completely lose contact
with the road surface, so that neither the car can
be steered nor the brake be properly applied.<

Maintenance
230
Socket for On-Board
Diagnosis OBD
Primary components that make up exhaust
emissions can be checked by a device via the
OBD socket.
This socket is located on the driver's side to the
left, on the bottom of the instrument panel
underneath a cover.
Exhaust emission values
The warning lamp lights up:
The exhaust emission values have
worsened. Have the car checked as
soon as possible.
Canadian models display this warning
lamp.
The lamp flashes under certain conditions. This
indicates excessive misfiring in the engine. If
this happens, you should reduce your speed
and visit your nearest BMW center as soon as
possible. Severe engine misfiring can quickly
lead to serious damage of emissions-related
components, especially the catalytic converter.
The warning lamp comes on if the gas
cap is not properly tightened and the
OBD system assumes that fuel vapor
is escaping. If the gas cap is then tightened, the
warning lamp should go out within a few days.
Event data recorders
Your vehicle may be equipped with one or sev-
eral measuring or diagnostic modules or a
device for recording or sending certain vehicle
data or information. In addition, if you have
signed a service contract for BMW Assist, cer-tain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.
Care
Important information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.

Everything from A - Z
254 Brakes, refer to Braking
safely126
Brake system124
– BMW Maintenance
System229
– breaking in124
– disc brakes126
Breakdown services, refer to
Roadside Assistance236
Breaking in the clutch124
Breaking in the differential,
refer to Engine and
differential124
Break-in period124
Brightness of the Control
Display86
"Brightness" on the Control
Display86
Bulb changing, refer to Lamps
and bulbs231
Button for starting the engine,
refer to Start/stop button59
Buttons on the steering
wheel11
C
California Proposition 65
warning6
"Call"194,205
Call
– accepting192
– displaying accepted194
– ending193
– missed194
– starting193
Calling
– from phone book193
– from Top 8 list194
– redialing194
Can holders, refer to Cup
holders115
Capacities247
Capacity of the cargo bay247
Car battery, refer to Vehicle
battery235
Car care, refer to Caring for
your vehicle brochureCar-care products, refer to
Caring for your vehicle
brochure
"Car Data"76
Care, refer to Caring for your
vehicle brochure
Cargo, securing128
Cargo bay
– capacity247
– convenient access37
– folding up the floor
panel119
– lamp, refer to Interior
lamps103
– opening from inside33
– opening from outside33
Cargo loading
– securing cargo128
– stowing cargo127
– vehicle127
Caring for artificial leather,
refer to Caring for your
vehicle brochure
Caring for leather, refer to
Caring for your vehicle
brochure
Caring for plastic, refer to
Caring for your vehicle
brochure
Caring for the carpet, refer to
Caring for your vehicle
brochure
Caring for the vehicle finish,
refer to Caring for your
vehicle brochure
Car jack
– jacking points235
Car key, refer to Integrated
key/remote control28
Car phone186
– installation location, refer to
Center armrest114
– refer to Mobile phone186
– refer to separate Owner's
Manual
Car radio, refer to Radio164Car wash126
– also refer to Caring for your
vehicle brochure
– with convenient access37
Catalytic converter, refer to
Hot exhaust system125
"Categories" for satellite
radio171
CBS Condition Based
Service229
"CD"160,173
CD changer173
– compressed audio files173
– controls160
– fast forward/reverse177
– installation location177
– playing a track175
– random order176
– repeating a track176
– selecting a CD173
– selecting a track174
– switching on/off160
– tone control161
– volume161
CD player173
– compressed audio files173
– controls160
– fast forward/reverse177
– playing a track175
– random order176
– repeating a track176
– selecting a track174
– switching on/off160
– tone control161
– volume161
Center armrest114
Center brake lamp
– replacing bulb234
Center console, refer to
Around the center
console14
"Central locking"30
Central locking
– from inside32
– from outside29
Central locking system29
– convenient access36
– hotel function34

Reference 257
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Driving tips, refer to Driving
notes124
Dry air, refer to Cooling
function107
DSC Dynamic Stability
Control89
DTC Dynamic Traction
Control90
– indicator/warning lamp90
DVD for navigation132
Dynamic Brake Control
DBC89
"Dynamic route" in
navigation145
Dynamic Stability Control
DSC
– indicator/warning lamp90
Dynamic Traction Control
DTC
– indicator/warning lamp90
E
EBV Electronic brake-force
distribution89
Eject button, refer to Buttons
on the CD player160
Electrical malfunction
– door lock32
– driver's door32
– fuel filler door210
– glass roof40
– luggage compartment lid33
Electric seat adjustment46
Electric steering wheel lock
– with convenient access37
Electronic oil level check225
Emergency actuation,
automatic transmission,
refer to Overriding selector
lever lock63
Emergency operation
– fuel filler door, manual
release210
Emergency operation, refer to
Closing manually
– glass roof40Emergency operation, refer to
Manual operation
– door lock32
Emergency release
– luggage compartment lid
from inside34
Emergency Request236
Emergency services, refer to
Roadside Assistance236
"Enabled services"206
"Enable services"207
"End call"193
Energy, saving
– saving fuel124
Engine
– breaking in124
– data244
– overheated, refer to Coolant
temperature75
– speed244
– starting60
– starting, convenient
access36
– switching off60
Engine compartment225
Engine coolant, refer to
Coolant227
Engine oil
– adding227
– BMW Maintenance
System229
– capacity247
– checking level225
– intervals between changes,
refer to Service
requirements79
"Engine oil level"226
Engine output, refer to Engine
data244
Engine speed, refer to Engine
data244
Engine starting, refer to
Starting the engine60
"Enter address"135
Entering a destination135
Entering a destination
country135
Entering a house number or
intersection137Entering an intersection136
Entering a street136
"Entertainment"160
Entry lamps, refer to Interior
lamps103
"Equalizer", refer to Tone
control163
Equalizer, refer to Tone
control162
Error messages, refer to
Check Control83
"ESN"170
ESP Electronic Stability
Program, refer to DSC
Dynamic Stability
Control89
Event data recorders230
Exhaust system, refer to Hot
exhaust system125
Exterior mirrors52
– adjusting52
– automatic dimming
feature53
– automatic heating53
– folding in and out52
External audio device114
External audio device, refer to
AUX-In port179
Eyes
– for tow-starting and towing
away239
– for tying down loads128
F
Fader, tone control161
Failure messages, refer to
Check Control83
Failure of an electrical
consumer235
False alarm
– avoiding unintentional
alarm36
– switching off an alarm35
Fastening safety belts, refer to
Safety belts51
Fastest route for
navigation145

Reference 259
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Heating
– mirrors53
– rear window107
– residual heat107
– seats49
Heating and ventilation, refer
to Climate104
Heating while at a standstill,
refer to Using residual
heat107
Heavy loads, refer to Stowing
cargo127
Height, refer to
Dimensions245
Height adjustment
– seats46
– steering wheel53
High beams102
– headlamp flasher102
– indicator lamp13
High Definition Radio167
High water, refer to Driving
through water126
Highways, refer to Route
criteria145
Hill Descent Control HDC90
Hills126
Holders for cups115
Home address144
"Home address" in
navigation145
Homepage BMW4
Hood224
Hooks for shopping bags118
Horn10,11
Hotel function, refer to
Locking or unlocking
separately34
Hot exhaust system125
"Hour memo"82
"House number" in
destination entry137
Hydraulic brake assist, refer to
Dynamic Brake Control
DBC89
Hydroplaning125I
IBOC, refer to High Definition
Radio167
Ice warning, refer to Outside
temperature
warning74
ID3 tag, refer to Information
about the track175
Identification marks
– Run-Flat Tires222
– tire coding220
iDrive16
– adjusting brightness86
– assistance window20
– automatic climate
control105
– changing language86
– changing units of measure
and display format78
– confirming selection or
entry19
– controls16
– displays, menus17
– menu guidance17
– operating principle16
– overview16
– selecting a menu item19
– setting the date and time81
– start menu17
– status information20
– switching menu pages19
– symbols18
iDrive operating principle16
Ignition59
– switched off59
– switched on59
Ignition key, refer to Remote
control with integrated
key28
Ignition key position 1, refer to
Radio readiness59
Ignition key position 2, refer to
Ignition on59
Ignition lock59
i menu18
Imprint2Indicator and warning
lamps13
– Tire Pressure Monitor
TPM95
Individual air distribution105
Inflation pressure, refer to Tire
inflation pressure212
Inflation pressure monitoring,
refer to Tire Pressure
Monitor TPM93
Information
– on another location140
– on country140
– on current position140
– on destination location140
Information menu, refer to
i menu18
"Information on
destination"142
"Info sources"80
Initializing
– active steering96
– after power failure235
– compass, refer to
Calibrating112
– Flat Tire Monitor FTM92
– glass roof40
"Input map"139
Installation location
– CD changer177
– navigation DVD drive132
– telephone114
Instructions for navigation
system, refer to Voice
instructions150
Instrument cluster12
Instrument lighting103
Instrument panel, refer to
Cockpit10
Integrated key28
Integrated universal remote
control110
Interesting destination for
navigation140
"Interim time"86
Interior lamps103
– remote control31
Interior motion sensor36