2009 BMW 335I CONVERTIBLE length

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Deactivating HDC
Press the button again; the LED goes out.
HDC is automatically deactivated at speeds
greater than approx. 35 mph/60 km/h.
Using HDC
In cars with manual transmission:
Use HDC in lower gears and in reverse gear.
With automatic transmission:
You can use HDC in any drive position.
Displays in the instrument cluster*
1Display for target speed
2HDC display
Malfunction
The HDC display disappears during HDC oper-
ation, or does not appear:
HDC is temporarily unavailable due to exces-
sive brake temperature, or DSC has failed.
Drive-off assistant
The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.
1.Hold the car in place by depressing the
brake.
2.Release the brake and drive off without
delay.
The drive-off assistant holds the car in
place for approx. 2 seconds after the
brake is released. Drive off without delay after
releasing the brake. Otherwise, the drive-off
assistant will no longer hold the car in place after approx. 2 seconds and the car will start to
roll backwards.<
Flat Tire Monitor FTM*
The concept
The Flat Tire Monitor detects pressure loss in a
tire by comparing the rotating speeds of the
individual tires while moving.
In the event of pressure loss, the rolling circum-
ference changes and, thus, the rotating speed
of the affected wheel. This change is detected
and is reported as a flat tire.
Functional requirement
In order to assure the reliable reporting of a flat
tire, the system must be initialized for the cor-
rect tire inflation pressure.
The system must be reinitialized each
time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed.<
System limitations
The Flat Tire Monitor is unable to warn
the driver of sudden, severe tire damage
caused by external factors, nor can it identify
the gradual loss of pressure that will inevitably
occur in all four tires over a lengthy period of
time.<
In the following situations, the system could be
delayed or malfunction:
>System has not been initialized
>Driving on snowy or slippery road surface
>Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration
>Snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically.
Do not initialize the system while snow chains
are attached.<

Controls
111Reference
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Convertible
Depending on your vehicle's equipment, the
following storage spaces can be found in the
cargo bay:
>Storage compartment on the left side of the
cargo bay. To open turn handle by 90°.
>Net
* for securing smaller objects, to be
attached to the fixtures on the floor panel
>Rubber strap
* for subdividing the cargo
bay; can be hooked onto the lateral lashing
eyes
>Storage compartment under the floor panel
Folding up the floor panel
Do not exceed the maximum permissible
load of 55 lbs/25 kg for the storage com-
partment under the floor panel, otherwise dam-
age could result.<
Coupe
Press the floor panel up and secure it with the
catch.
Convertible
To lift, grab hold of the floor panel at the open-
ing at the rear of the panel.
Lashing eyes
You will find lashing eyelets in the cargo bay for
securing luggage items with nets or tensioning
straps, refer to page120.
Coupe: ski bag*
The ski bag is designed for safe, clean transport
of up to 4 pairs of standard skis or up to
2snowboards.
With the ski bag you can stow skis with a length
of up to 6ft 10in/2.10m. When skis of 6ft 10in/
2.10 m length are loaded, the overall capacity of
the ski bag is reduced due to its tapered design.
Loading
1.Fold down the center armrest.
2.Press the button, reach into the recess and
fold down the cover.
3.Open the Velcro fastener, spread the ski
bag between the front seats and insert the
skis or snowboards.
The zip fastener makes objects in the ski
bag easier to reach.
4.Clip the hooks of the ski bag retaining strap
into the eyelet.
Only place clean skis in the ski bag. Wrap sharp
edges to prevent damage.
Securing cargo
After loading, secure the ski bag and its con-
tents. Tighten the retaining strap on the ten-
sioning buckle for this purpose.

Practical interior accessories
112 Secure the ski bag in the manner
described, otherwise it could endanger
the car's occupants, e.g. in case of heavy brak-
ing or sudden swerving.<
To store the ski bag, perform the steps
described for loading in reverse order.
Removing the ski bag
The ski bag can be completely removed, e.g. for
faste r drying or to allow you to use other inserts.
1.Fold down the center panel in the rear seat
backrest.
2.Pull the handle, arrow1.
3.Pull out the insert, arrow 2.
For more information on the various
inserts available, contact your BMW cen-
ter.<
Convertible: through-loading
opening with integrated
transport bag
*
The transport bag is designed for safe, clean
transport of up to 4 pairs of standard skis or up
to 2 snowboards.
When the rear seat backrest is folded up, you
can remove the insert and use the transport bag
with the regular through-loading opening. To
transport larger objects, you can fold down the
rear seat backrest to create an expanded
through-loading opening.
With the transport bag you can stow skis with a
l e ng t h o f up t o 6 f t 2 i n/ 1 . 9 0 m . W h e n s k i s o f 6 f t
2 in/1.90 m length are loaded, the overall capac-
ity of the transport bag is reduced due to its
tapered design.
Loading
1.For loading using the regular through-load-
ing opening:
Press the button down and remove the
insert from the front.
For loading with the through-loading open-
ing expanded:
Fold down the rear seat backrest, refer to
page110.
2.Front cover: press the two recesses
together and fold the cover down until it
engages.
3.In the cargo bay: press the two recesses
together and fold down the cover.
4.Undo the Velcro fastener and spread out
the transport bag between the front seats.

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5.Insert the latch plate of the retaining strap
into the belt buckle under the transport bag.
6.Load the transport bag. The zipper eases
access to the stored items.
Only place clean skis in the transport bag. Wrap
sharp edges to prevent damage.
You can use the snaps to shorten the transport
bag if you do not need its full length.
Securing cargo
After loading, secure the transport bag and its
contents. Tighten the retaining strap on the
tensioning buckle for this purpose.
Secure the transport bag in the manner
described, otherwise it could endanger
the car's occupants, e.g. in case of heavy brak-
ing or sudden swerving.<
To store the transport bag, perform the steps
described for loading in reverse order.
Removing the front cover
You can remove the front cover to use the full
height of the through-loading opening. With the
cover folded down, pull the handle, see arrow,
and remove the cover toward the front. To
replace, insert the cover at an angle from above
and let it snap it into place.

Driving tips
117Reference
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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.
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.
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 page211.
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
page99.
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.<

Things to remember when driving
118 The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page203.
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 page85.
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.
Driving in wet conditions
When roads are wet or there is heavy rain,
briefly exert gentle pressure 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. Full
braking efficiency will then be available when
you need it.
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 braking is required. Even
light but consistent brake 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 helps you avoid placing
excessive loads on the brake system. Down-
shifting in manual mode of the automatic trans-
mission, refer to page58.
Never drive with the clutch held down,
with the transmission in neutral or with
the engine switched off; otherwise, engine
braking action will not be present or there will be
no power assistance to the brakes or 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 driven only occasionally,
during extended periods when the vehicle is not
used at all, and in operating conditions where
brake applications are less frequent, there is an
increased tendency for corrosion to form on
rotors, while contaminants 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 while the automatic cli-
mate control is in operation, and then exits
under the vehicle. Traces of condensed water
under the vehicle are therefore normal.
Before driving into a car wash
General information on caring for your BMW
can be found on page213.

Destination guidance
136 of traffic obstructions. The system does not
point out traffic obstructions along the original
route.
Depending on the type of road and the nature
and length of the traffic obstruction, the route
can also be calculated so that you travel
through the traffic obstruction.
1."Navigation"
2.Open "Options".
3."Dynamic guidance"
If the "Avoid highways", "Avoid toll roads"
or "Avoid ferries" route criteria are
selected, route calculation may take consider-
ably longer.<
Route
General information
Depending on the equipment in your vehicle,
different views of the route are available during
destination guidance.
>Map display
>Arrow display
>Display of the streets and towns/cities on
the route.
Displaying a list of the streets or towns/
cities on the route
When destination guidance is started, a list of
the streets and towns/cities on the route is dis-
played. The driving distances and traffic bulle-
tins are displayed for each route section.
>Display a list of the streets and towns/cities
on the route.
>Display the traffic bulletins and the driving
distance for each route section.
1."Navigation"
2."Route information"
3.Highlight a section.
The section is displayed in the preview map.
Bypassing a section of the route
During destination guidance, you can revise the
navigation system's route recommendations to
avoid particular stretches of road. Enter the
number of miles/kilometers that you want to
travel before returning to the original route.
A section of the route up to 32 miles/50 km in
length can be bypassed.
1."Navigation"
2."Route information"
3."New route for:"
4.Turn the controller: enter the desired num-
ber.
If the route section should no longer be
bypassed: "Remove blocking"
Gas station recommendations
The vehicle calculates the range and recom-
mends several gas stations along the route.
1."Navigation"
2."Route information"
3."Recommended refuel"
4.Select a gas station.
5.Select the symbol to start destination
guidance.
Destination guidance
through voice instructions
Switching voice instructions on/off
Voice instructions can be switched on or off
during destination guidance.

Reference 249
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
K
Key, refer to Integrated key/
remote control26
Keyless go, refer to
Convenient access34
Keyless opening and closing,
refer to Convenient
access34
Key Memory, refer to Personal
Profile26
Kick-down58
– automatic transmission with
Steptronic58
Knock control193
L
Lamps
– automatic headlamp
control93
– parking lamps/low beams93
Lamps and bulbs, replacing
bulbs218
Language, changing on
Control Display80
Lap-and-shoulder belt, refer
to Safety belts48
Lashing eyes, refer to
Securing cargo120
Last destinations128
LATCH child-restraint fixing
system53
Leather care215
LED Light-emitting
diodes218
Length, refer to
Dimensions233
License plate lamp, replacing
bulb222
Light-alloy wheels215
Light-emitting diodes
LED218
Lighter108
– connecting electrical
appliances108Lighting
– instruments95
– lamps and bulbs218
– vehicle, refer to Lamps93
Light switch93
Limit, refer to Speed limit79
Load119
Load securing equipment,
refer to Securing cargo120
Lock buttons, doors, refer to
Locking31
Locking
– adjusting confirmation
signal29
– from inside31
– from outside28
– without remote control, refer
to Convenient access34
Locking and unlocking doors
– confirmation signals29
– from inside30
– from outside27
Low-beam headlamps93
– automatic93
Lower back support, refer to
Lumbar support44
Luggage compartment lid31
– convenient access34
– emergency release32
– locking or unlocking
separately31
– opening from inside31
– opening from outside
31
– remote control28
Luggage rack, refer to Roof-
mounted luggage rack121
Lumbar support44
LW, waveband147
M
M+S tires, refer to Winter
tires205
Maintenance, refer to Service
Booklet
Maintenance system211Malfunction
– automatic transmission with
Steptronic59
– tires86
Malfunction warnings, refer to
Check Control77
Manual car wash214
Manual mode, automatic
transmission with
Steptronic58
Manual operation
– door lock30
– driver's door30
– fuel filler door192
– glass roof38
– transmission lock, automatic
transmission59
Manual transmission57
Map display137
Map for navigation
– changing scale137
– entering destination130
Master key, refer to Remote
control with integrated
key26
Maximum cooling98
Maximum speed
– with winter tires205
Measurements, refer to
Dimensions233
Memory, refer to Seat and
mirror memory47
MENU button16
Menus, refer to iDrive16
Microfilter
– BMW Maintenance
System211
– for automatic climate
control100
Microfilter/activated-charcoal
filter
– BMW Maintenance
System211
Microphone
– telephone14
– voice commands14
Mirror dimming feature50