2009 BMW 335I CONVERTIBLE catalytic converter

Driving
56 place the transmission in neutral or engage
selector lever or transmission position P and
forcefully apply the parking brake to prevent the
car from moving.<
Avoid frequent starting in quick succes-
sion as well as repeated start attempts in
which the engine does not start. Otherwise, the
fuel is not burned or incompletely burned and
there is a danger of overheating and damaging
the catalytic converter.<
Do not wait for the engine to warm up while the
vehicle remains stationary. Start driving right
away, but at moderate engine speeds.
Manual transmission
Remote control in the ignition lock or, with con-
venient access, inside the vehicle, refer to
page34.
1.Depress the brake.
2.Depress the clutch and shift to neutral posi-
tion.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
Automatic transmission
Remote control in the ignition lock or, with con-
venient access, inside the vehicle, refer to
page34.
1.Depress the brake.
2.Move the selector lever to position P.
3.Press the start/stop button.
The starter operates automatically for a certain
time, and stops automatically as soon as the
engine has started.
Switching off the engine
Always take the remote control with you
when you leave the vehicle.
When parking, apply the parking brake force-
fully, otherwise the vehicle could begin to roll.<
Manual transmission
1.With the car at a standstill, press the start/
stop button.
2.Shift into first gear or reverse.
3.Forcefully apply the parking brake.
4.Removing the remote control from the igni-
tion lock, refer to page55.
Automatic transmission
1.With the car at a standstill, move the selec-
tor lever to position P.
2.Press the start/stop button.
3.Forcefully apply the parking brake.
4.Removing the remote control from the igni-
tion lock, refer to page55.
Parking brake
The parking brake is primarily intended to pre-
vent the vehicle from rolling while parked; it
brakes the rear wheels.
Indicator lamp
The indicator lamp is lit, and when you
drive off an acoustic signal sounds in
addition. The parking brake is still
applied.
Indicator lamp for Canadian models.
Applying
The lever locks in position automatically.

Mobility
193Reference
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
>reduced efficiency of the fuel-vapor recov-
ery system.
The fuel tank is full when the filler nozzle clicks
off the first time.
Fuel tank capacity
Approx. 16.1 US gallons/61 liters, including the
reserve capacity of 2.1 US gallons/8 liters.
Refuel as soon as possible once your
cruising range falls below 30 miles/
50 km, otherwise engine functions are not
ensured and damage can occur.<
Fuel specifications
Gasoline engine: required fuel
Do not refuel with leaded fuel; otherwise,
the catalytic converter will be damaged.
Do not fill the tank with E85, i.e. fuel containing
85Ξ ethanol, nor with FlexFuel. Otherwise the
engine and fuel supply system will be dam-
aged.<
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is:
>328i/xDrive: 87
>335i/xDrive: 89.
If you use gasoline with this minimum AKI Rat-
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.
Do not use any gasoline below the speci-
fied minimum fuel grade. Otherwise the
engine could be damaged.<
Use high-quality brands
Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition,
additives, etc., among gasolines offered for sale
in the United States and Canada. Fuels contain-
ing up to and including 10Ξ ethanol or other
oxygenates with up to 2.8Ξ oxygen by weight,
that is, 15Ξ MTBE or 3Ξ methanol plus an equivalent amount of co-solvent, will not void
the applicable warranties with respect to
defects in materials or workmanship.
The use of poor-quality fuels may result in
driveability, starting and stalling problems
especially under certain environmental condi-
tions such as high ambient temperature and
high altitude.
Should you encounter driveability problems
which you suspect could be related to the fuel
y o u a r e u s i n g , w e r e c o m m e n d t h a t y o u r e s p o n d
by switching to a recognized high-quality brand
such as gasoline that is advertised as Top Tier
Detergent Gasoline.
Failure to comply with these recommendations
may also result in unscheduled maintenance.<

Maintenance
212
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.

Giving and receiving assistance
228 To avoid jerking and the associated
stresses on vehicle components when
towing, always use nylon ropes or nylon straps.
Attach the tow rope to the tow fittings only, as
attaching it to other parts of the vehicle could
result in damage.<
With a tow truck: vehicle without xDrive
Have the BMW transported with a tow truck
with a so-called lift bar or on a flat bed.
Do not tow the vehicle with just the rear axle
raised as this may cause the steering to turn.
With a tow truck: vehicle with xDrive
Do not tow a BMW with xDrive with just
the front or rear axle raised, otherwise the
wheels could lock up and the transfer case
could be damaged.<
Have the BMW transported on a flatbed surface
only.
Tow-starting
Avoid tow-starting the vehicle whenever possi-
ble; instead, jump-start the engine, refer to
page225. Vehicles with a catalytic converter
should only be tow-started when the engine is
cold, vehicles with an automatic transmission
cannot be tow-started at all.1.Switch on hazard warning flashers, comply
with local regulations.
2.Switch on the ignition, refer to page55.
3.Shift into 3rd gear.
4.Have the vehicle tow-started with the clutch
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch completely again.
5.Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6.Have the vehicle checked.
With xDrive: do not activate Hill Descent
Control HDC when the vehicle is being
tow-started, page84.<

Everything from A - Z
244 Care213
– automatic car washes213
– care products213
– carpets215
– CD/DVD drives216
– chrome parts214
– displays215
– exterior213
– fine wood parts215
– headlamps214
– high-pressure washer213
– interior215
– leather215
– light-alloy wheels215
– paintwork214
– plastic parts215
– retractable hardtop214
– rubber seals214
– safety belts215
– sensors and cameras215
– upholstery and cloth
trim215
– washing the car
manually214
– windows214
– wiper blades214
Cargo, securing120
Cargo bay
– capacity235
– convenient access34
– folding up the floor
panel111
– lamp, refer to Interior
lamps96
– opening from inside31
– opening from outside31
Cargo loading119
– securing cargo120
– stowing cargo119
– vehicle119
Car jack
– jacking points222
Car key, refer to Integrated
key/remote control26
Car phone
– installation location, refer to
Center armrest106
– refer to separate Owner's
ManualCar phone, refer to
Telephone170
Car radio, refer to Radio147
Car shampoo215
Car wash118
Catalytic converter, refer to
Hot exhaust system117
CBS Condition Based
Service
211
CD, audio playback152
CD changer152
– controls144
– fast forward/reverse154
– installation location156
– random play sequence153
– selecting a track152
– switching on/off144
– tone control144
– volume144
CD player152
– controls144
– fast forward/reverse154
– random play sequence153
– selecting a track152
– switching on/off144
– tone control144
– volume144
Center armrest106
Center brake lamp
– replacing bulb222
Center console, refer to
Around the center
console14
Central locking
– from inside30
– from outside27
Central locking system27
– convenient access34
– hotel function31
– setting unlocking
characteristics27
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs218
Changing the measurement
units on the Control
Display72
Changing wheels222Chassis number, refer to
Engine compartment207
Check Control77
Child-restraint fixing system
LATCH53
Child-restraint systems52
Child seats, refer to
Transporting children
safely52
Chrome parts215
Chrome polish215
Cigarette lighter, refer to
Lighter108
Cleaning headlamps60
– washer fluid61
Cleaning your BMW, refer to
Care213
Clock
69
– 12h/24h mode76
– setting the time and date76
– setting time75
Closing
– from inside30
– from outside27
Clothes hooks107
Cockpit10
Cold start, refer to Starting the
engine55
Combined instrument, refer to
Instrument cluster12
Comfort access, refer to
Convenient access34
Comfort area, refer to Around
the center console14
Compartment for remote
control, refer to Ignition
lock55
Compass104
Computer70
– displays on Control
Display71
Computer, refer to iDrive16
Concierge service183
Condensation, refer to When
the vehicle is parked118
Condition Based Service
CBS211
Configuring settings, refer to
Personal Profile26