2012 BMW 335I CONVERTIBLE engine

139
Things to remember when driving
Driving tips
Check tire inflation pressure regularly
Check the tire inflation pr
essure at least twice a
month and before embarking on a long journey,
and correct it if necessary.
Low tire inflation pressure causes higher rolling
resistance and thus increases fuel consumption
and tire wear.
Set off immediately
Do not let the engine wa rm up while the car is
still standing, but set off immediately at moder-
ate engine speed. This is the fastest way for the
cold engine to reach its operating temperature.
Drive defensively
Avoid unnecessary acceleration and braking
maneuvers. To do so, keep an adequate dis-
tance between you and th e vehicle in front of
you. 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, accele rate without hesitation
or pauses. When accelera ting, shift up before
reaching high engine speeds.
When you reach the desi red speed, shift into
the highest applicable ge ar 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 lig ht, take your foot off
the accelerator and coast to a stop in the high-
est applicable gear.
On a downhill slope, take your foot off the accel-
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.
4seconds.
Switch off functions you do not need at
the moment
Functions such as the air conditioner, seat
heating or rear window defroster draw large
amounts of power and consume additional fuel.
Especially in city traffic and in stop-and-go driv-
ing 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
your BMW center. Also note the BMW service
system, refer to page 264.
General driving notes
Close the trunk lid
Only drive with the trunk closed. Failure to
do so may endanger passengers or other
road users or may damage the vehicle in the
event of an accident or a braking and evasive
maneuver. In addition, exhaust gas may flow
into the passenger compartment. <
If special circumstances make it absolutely nec-
essary to drive with the trunk open:
1. Close all windows and the glass roof.
2. Greatly increase the ai r volume of the auto-
matic climate control system, refer to
page 118.
3. Drive cautiously.
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

140
Driving tipsThings to remember when driving
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 sect ions of the exhaust sys-
tem, and never apply un dercoating 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 le ad 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. <
Mobile phones in the vehicle
It is not advisable to use wireless devices
such as mobile phones inside the vehicle
without a direct connection to an external aerial.
Otherwise, it is not poss ible to exclude the pos-
sibility of a reciprocal interference occurring
between the vehicle electronics and the wire-
less device. Otherwise, there is no assurance
that the radiation genera ted by the radio trans-
mission will be conveyed out of the passenger
compartment. <
Hydroplaning
When driving on wet or slushy roads,
reduce road speed. If you do not, a wedge
of water can form betw een 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 brak e be properly applied.<
The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page 256.
Driving through water
Drive through water on the road only if it is
not deeper than 1 ft/30 cm, and then only
at walking speed at the most. Otherwise, the
vehicle's engine, the electrical systems and the
transmission may be damaged. <
Use the parking brake on inclines
On inclines, do not hold the vehicle for a
lengthy period using the clutch; use the
parking brake instead. Otherwise, greater
clutch wear will result. <
For more information about the drive-off assis-
tant, refer to page 100.
Braking safely
Your BMW is equipped with ABS as a standard
feature. Applying the brakes fully is the most
effective way of braking in situations in which
this is necessary. Since the vehicle maintains
steering responsiveness, you can still avoid
possible obstacles with a minimum of steering
effort.
Pulsation of the brake pedal, combined with
sounds from the hydraulic circuits, indicate that
ABS is in its active mode.
Objects in the movement range of the
pedals
Keep floor mats, carpet, and other objects
out of the movement range of the pedals;
otherwise, they may inhi bit the function of the
pedals during driving.
Do not place additional floor mats onto an exist-
ing one or onto other objects.
Only use floor mats that have been approved for
the vehicle and can be appropriately fastened.
Make sure that the floo r mats are securely fas-
tened again after they ha ve been removed, e.g.
for cleaning. <
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pre ssure on the brake pedal
every few miles. Monitor traffic conditions to
ensure that this maneuver does not endanger
other road users. The heat generated in this
process helps dry the pads and rotors to ensure
that full braking efficiency will then be available
when you need it.
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

141
Things to remember when driving
Driving tips
Hills
To prevent overheating and the resulting
reduced efficiency of the brake system,
drive long or steep downhill gradients in the
gear in which the least br aking is required. Even
light but consistent brak e pressure can lead to
high temperatures, brake wear and possibly
even brake failure. <
You can increase the engine's braking effect by
shifting down, all the way to first gear if neces-
sary. This strategy he lps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page 65.
Sport automatic transm ission with double
clutch: never drive with the transmission
in neutral or with the en gine switched off; other-
wise, there will be no en gine braking action and
no power assistance to the brakes and steering.
Manual transmission: never drive with the
clutch held down, with the transmission in neu-
tral or with the engine switched off; otherwise,
there will be no engine braking action and no
power assistance to the brakes and steering.
Never allow floor mats, carpets or any other
objects to protrude into the area around the
pedals; otherwise, pedal function could be
impaired. <
Corrosion on brake rotors
When the vehicle is driv en only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are le ss frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminan ts accumulate on the
brake pads. This occurs because the minimum
pressure which must be exerted by the pads
during brake applications to clean the rotors is
not reached.
Should corrosion form on the brake rotors, the
brakes will tend to respond with a pulsating
effect that even extended application will fail to
cure.
When the vehicle is parked
Condensation forms wh ile the automatic cli-
mate control is in operation, and then exits
under the vehicle. Traces of condensed water
under the vehicle are therefore normal.
Cargo loading
To avoid loading the tires beyond their
approved carrying ca pacity, never over-
load the vehicle. Overlo ading can lead to over-
heating and increases the rate at which damage
develops inside the tires. In some situations,
this can result in sudden loss of tire pressure. <
Make sure that no liquids are spilled or
leak from their containers in the cargo
area, as this could result in damage to the vehi-
cle. <
Determining loading limit
1. Locate the following statement on your
vehicle's placard:
The combined weight of occupants
and cargo should never exceed
XXX kg or YYY lbs. Otherwise, damage to
the vehicle and unstable driving conditions
may result. <
2. Determine the combined weight of the
driver and passengers that will be riding in
your vehicle.
3. Subtract the combined weight of the driver
and passengers from XXX kilograms or YYY
pounds.
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

192
EntertainmentMusic collection
Deleting an album
An album cannot be deleted while a track from it
is being played.
1."CD/Multimedia"
2. "Music collection"
3. Highlight the desired album.
4. Open "Options".
5. "Delete album"
Deleting a track and directory
A track cannot be delete d while it is being
played.
A directory cannot be dele ted while a track from
it is being played.
1. "CD/Multimedia"
2. "Music collection"
3. Highlight the directory or track.
4. Open "Options".
5. "Delete folder" or "Delete track"
Free memory capacity
Display the free memory capacity in the music
collection.
1. "CD/Multimedia"
2. "Music collection"
3. Open "Options".
4. "Free memory"
Music collection
Backing up the music collection
The entire music collection can be stored on a
USB medium. Make sure there is enough free
memory capacity on the USB device.
Depending on the number of tracks, backing up
the music collection may take several hours.
Therefore, it is best to perform the backup dur-
ing a long trip. 1.
Start the engine.
2. Connect the USB medium to the USB inter-
face in the glove compartment, refer to
page 126.
3. "CD/Multimedia"
4. "Music collection"
5. Open "Options".
6. "Music data import/export"
7. "Backup music on USB"
Restoring the music collection in the
vehicle
When storing from the USB device, the
music collection existing in the vehicle is
replaced. <
1. "CD/Multimedia"
2. "Music collection"
3. Open "Options".
4. "Music data import/export"
5. "Restore music from USB"
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

206
CommunicationsTe l e p h o n e
5.Select the desired additional function:
>"Additional telephone"
> "Office"
> "Bluetooth® audio"
If an additional function is deactivated, it cannot
be assigned to a phone.
Pairing and connecting a device
Only pair the device when the vehicle is
stopped; otherwise, inattention may lead
to endangerment of passengers or other road
users. <
1. "Telephone"
2. "Bluetooth® (phone)"
3. "Add new phone"
The Bluetooth name of the vehicle is dis-
played.
4. To perform other operations on the mobile
phone, refer to the owner's manual for the
device: e.g. search for and connect Blue-
tooth device or a new device.
The Bluetooth name of the vehicle appears
on the mobile phone display.
5. Select the Bluetooth name of the vehicle on
the mobile phone display.
You will be prompted by iDrive or the mobile
phone to enter the same Bluetooth pass-
key. 6.
Enter the passkey and confirm.
7. Select the functions for which the mobile
phone is to be used.
8. "OK"
If pairing was successful, the mobile phone
appears at the top of the list of devices.
Functions supported by the mobile phone and
audio device are displayed as symbols during
the pairing.
White symbol: function active.
Gray symbol: function inactive.
Four devices can be paired with the vehicle
simultaneously. Three devices can be con-
nected to the vehicle simultaneously.
If the pairing was not succ essful: what to do if…,
refer to page 208.
Following the initial pairing
>The mobile phone is de tected/connected in
the vehicle within a short period of time
when the engine is running or the ignition is
switched on.
> The phone book entries of the telephone
that are stored on the SIM card or the
mobile phone are imported into the vehicle
once the device is detected, depending on
the mobile phone.
SymbolFunction
Telephone
Auxiliary phone
Audio source
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

236
MobilityRefueling
Refueling
Vehicle equipment
In this chapter, all pr oduction, country, and
optional equipment that is offered in the model
range is described. For this reason, descrip-
tions will be given of some equipment that may
not be available in a vehi cle, for example due to
the special options or national-market version
selected. This also app lies to safety related
functions and systems.
General information
Always switch off the engine before refu-
eling; otherwise, fuel cannot be added to
the tank and a message will be displayed. <
Take all precautionary measures and
observe all applicable regulations when
handling fuel. Do not carry any spare fuel con-
tainers in your vehicle. They can develop a leak
and cause an explosion or cause a fire in the
event of an accident. <
Fuel filler flap
Opening
1.Open the fuel filler flap. To do so, lightly
press the rear edge.
2. Turn the fuel cap counterclockwise.
3. Place the fuel cap in th e bracket attached to
the fuel filler flap.
Closing
Fit the cap and turn it cl ockwise until you clearly
hear a click.
Do not pinch the band attached to the
cap; otherwise, the cap cannot be closed
properly and fuel vapors can escape. A mes-
sage will be displayed if the fuel cap is loose or
missing. <
Manually releasing the fuel filler flap
In the event of a malfunction, you can release
the fuel filler flap manually:
Coupe
1.Remove the cover from the right-hand side-
wall of the cargo area.
2. Pull the knob with the fuel pump symbol.
The fuel filler flap is released.
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

237
Refueling
Mobility
Convertible
1.
Loosen the right-hand cargo area trim panel
by turning the screws by 90°, see arrow.
2. Slightly lift the top section of the panel. It is
not necessary to remove the entire panel.
3. Pull the knob with the fuel pump symbol.
The fuel filler flap is released.
Observe the following when refueling
When handling fuels, follow the safety
instructions provided at filling stations;
otherwise, there is a risk of personal injury or
property damage. <
When refueling, insert the filler nozzle com-
pletely into the filler pipe. Avoid lifting the filler
nozzle while filling the tank , as that would lead
to
> Premature pump shutoff
> 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 gal/61 liters, including the
reserve capacity of 2.1 US gal/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
Never use fuels labeled at the fuel pump as
metal-containing.
Do not use leaded gasoline or gasoline
with metal-containing additives doing so
can cause permanent dama ge to the catalytic
converter or other components. <
Do not fill the tank with E85, i.e. fuel con-
taining 85 Ξ ethanol, nor with FlexFuel.
Otherwise, the engine and fuel supply system
will be damaged. <
Super Premium Gasoline/AKI 91
BMW recommends AKI 91.
Gasoline with lower AKI
The minimum AKI Rating is:
>328i/xDrive: 87
> 335i, 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 gr ade. 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 10 Ξ ethanol or other
oxygenates with up to 2.8 Ξ oxygen by weight,
that is, 15 Ξ MTBE or 3 Ξ methanol plus an
equivalent amount of cosolvent, will not void the
applicable warranties with respect to defects in
materials or workmanship.
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG

259
Engine compartment
Mobility
Engine compartment
Vehicle equipment
In this chapter, all production, country, and
optional equipment that is offered in the model
range is described. For this reason, descrip-
tions will be given of some equipment that may
not be available in a vehi
cle, for example due to
the special options or national-market version
selected. This also app lies to safety related
functions and systems.
Important parts of th e engine compartment
1Expansion tank for coolant, refer to
page 263
2 Washer fluid filler neck for headlamp clean-
ing system and window washer system,
refer to page 72
3 Jump-starting conne ction, refer to
page 278
4 Filler neck for engine oil, refer to Adding
engine oil
Online Edition for Part no. 01 40 2 609 333 - \251 08/11 BMW AG