BMW 325Ci Coupe (2006 year). Instruction - part 6

 

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BMW 325Ci Coupe (2006 year). Instruction - part 6

 

 

ba5_E9293_EUR_US.book  Seite 92  Donnerstag, 4. Mai 2006  1:08 13

Driving tips

This section provides you with information

useful in dealing with specific driving and

operating conditions.

Driving tips

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Things to remember when driving

94

Things to remember when driving

Break-in period

Moving parts need breaking-in time to adjust to 
each other. Please follow the instructions below 
in order to achieve the optimal service life and 
economy of operation for your vehicle.

Engine and differential

Always obey all official speed limits.

Up to 1,200 miles/2,000 km

Drive at varying engine and road speeds, but do 
not exceed an engine speed of 4,500 rpm or a 
road speed of 100 mph/160 km/h.
Avoid full-throttle operation and use of the 
transmission's kick-down mode.

After driving 1,200 miles/2,000 km

Engine and vehicle speeds can be gradually 
increased.

Tires

Due to technical factors associated with their 
manufacture, tires do not achieve their full trac-
tion potential until after an initial break-in 
period. Therefore, drive cautiously during the 
first 200 miles/300 km.

Brake system

Brakes require an initial break-in period of 
approx. 300 miles/500 km to achieve optimized 
contact and wear patterns between brake pads 
and rotors. Drive cautiously during this break-in 
period.

Clutch

The function of the clutch reaches its optimal 
level only after a distance driven of approx. 
300 miles/500 km. During this break-in period, 
engage the clutch gently.

Following part replacement

The same break-in procedures should be 
observed if any of the components mentioned 
above have to be renewed in the course of the 
vehicle's operating life.

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 special circumstances make it absolutely nec-
essary to drive with the luggage compartment 
lid open:

1.

Close all windows and the glass sunroof.

2.

Increase the air flow rate of the air condi-
tioner or automatic climate control consid-
erably, refer to page

78

 or

81

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.

<

Mobile phone in the vehicle

BMW discourages the use of mobile 
communications devices, e.g. mobile 

phones, inside the vehicle without a direct con-
nection to an outside antenna. Otherwise, the 
vehicle electronics and mobile communication 

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device can influence one another. In addition, 
there is no assurance that the radiation which 
results from transmission will be dissipated 
from the vehicle interior.

<

Interior and exterior mirrors, automatic 

dimming feature*

The automatic dimming feature of the interior 
and exterior mirrors

is controlled by two photo 

cells in the interior rearview mirror. One photo 
cell is in the mirror frame, see arrow; the other is 
on the back of the mirror.
In order to ensure that the system functions 
correctly, keep the photo cells clean, do not 
cover the area between the interior rearview 
mirror and windshield, and do not affix adhesive 
labels or stickers of any kind to the windshield 
directly in front of the mirror.

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.

<

The risk of hydroplaning increases with declin-
ing tread depth on the tires, refer also to Mini-
mum tread depth on page

108

.

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 handbrake on inclines

On inclines, do not hold the vehicle with 
the clutch; use the handbrake. Otherwise 

greater clutch wear will result.

<

For more information about the drive-off assis-
tant, refer to page

65

.

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 to ensure 
that 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 page

44

.

Never drive with the clutch held down, 
with the transmission in idle or with the 

engine switched off; otherwise, engine braking 
action will not be present or there will be no 

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Things to remember when driving

96

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

For general information about taking care of 
your BMW, refer to the Caring for your vehicle 
brochure.

With convenient access and automatic 
transmission

Insert the remote control into the ignition 
switch.
The engine can be switched off when the selec-
tor lever is in position N. Refer also to page

26

.

Cargo loading

To avoid loading the tires beyond their 
approved carrying capacity, never over-

load the vehicle. Overloading can lead to over-
heating and increases the rate at which damage 

develops inside the tires. The ultimate result 
can assume the form of a sudden blow-out.

<

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, overloading 
can result in damage to the vehicle and 
unstable driving conditions.

<

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.

4.

The resulting figure equals the available 
amount of cargo and luggage load capacity. 
For example, if the YYY amount equals 
1,400 lbs. and there will be five 150-lb. pas-
sengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is 
650 lbs: 
1,400 lbs. minus 750 lbs. = 650 lbs.

5.

Determine the combined weight of luggage 
and cargo being loaded on the vehicle. That 
weight may not safely exceed the available 
cargo and luggage load capacity calculated 
in step 4.

6.

If your vehicle will be towing a trailer, part of 
the load from your trailer will be transferred 
to your vehicle. Consult the manual for 
transporting a trailer to determine how this 
may reduce the available cargo and luggage 
load capacity of your vehicle.

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Load

The permissible load is the total of the weight of 
occupants and cargo/luggage. The greater the 
weight of the occupants, the less cargo/lug-
gage can be transported.

Stowing cargo

>

Position heavy objects as low and as far for-
ward as possible, ideally directly behind the 
respective seat backs.

>

Cover sharp edges and corners.

>

For very heavy cargo when the rear seat is 
not occupied, secure each safety belt in the 
opposite buckle.

Securing cargo

>

Secure smaller and lighter items using 
retaining straps, a cargo-bay net

or draw 

straps

*

.

>

Heavy-duty cargo straps

*

 for securing 

larger and heavier objects are available at 
your BMW center. Four lashing eyes are 
provided for attaching the cargo straps. 
Two are located

 on the rear cargo-bay 

panel

2, two more on the cargo-bay 

sidewalls

1.

Please comply with the information sup-
plied with the cargo straps.

Always position and secure the cargo as 
described above, so that it cannot endan-

ger the car's occupants, for example if sudden 
braking or swerves are necessary. 
Never exceed either the approved gross vehicle 
weight or either of the approved axle loads, refer 
to page

140

, as excessive loads can pose a 

safety hazard, and may also place you in viola-
tion of traffic safety laws. 
Heavy or hard objects should not be carried 
unsecured inside the car, since they could be 
thrown around, for example as a result of heavy 
braking, sudden swerves, etc., and endanger 
the occupants.

<

Roof-mounted luggage rack*

A special rack system is available as an option 
for your BMW. Comply with the precautions 
included with the installation instructions.

Mounting points

The mounting points are located in the roof or 
along the roof rails

*

.

Loading roof-mounted luggage rack

Because roof racks raise the vehicle's center of 
gravity when loaded, they have a major effect on 
vehicle handling and steering response. 

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Things to remember when driving

98

You should therefore always remember not to 
exceed the approved roof load capacity, the 
approved gross vehicle weight or the axle loads 
when loading the rack.
You can find the applicable data under Weights 
on page

140

.

The roof load must be distributed uniformly and 
should not be too large in area. Heavy items 
should always be placed at the bottom. Be sure 
that adequate clearance is maintained for rais-
ing the glass sunroof, and that objects do not 
project into the opening path of the luggage 
compartment lid.
Fasten roof-mounted cargo correctly and 
securely to prevent it from shifting or falling off 
during the trip.
Drive smoothly. Avoid sudden acceleration and 
braking maneuvers. Take corners gently.

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Mobility

This section helps you maintain your car's

mobility by supplying important information

on vital topics including fuels and lubricants,

wheels and tires, service, maintenance and

breakdown assistance.

Mobility

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Refueling

102

Refueling

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.

<

Gas cap

Opening

1.

Open fuel filler door. To do so, lightly press 
the rear edge.

2.

Turn the gas cap counterclockwise.

3.

Place the gas cap in the bracket attached to 
the fuel filler door.

Closing

Fit the cap and turn it clockwise until you clearly 
hear a click.

Do not jam the strap between the gas cap 
and the vehicle. Otherwise fuel vapors 

could escape.

<

The warning lamp lights up briefly if 
the gas cap is loose or missing. If this 
occurs, close the cap correctly.

Manually releasing the fuel filler door

In the event of a malfunction, you can release 
the fuel filler door manually:

1.

Remove the cover from the right-hand side-
wall of the cargo bay.

2.

Pull the knob with the fuel pump symbol. 
The fuel filler door is released.

Observe the following when refueling

When handling fuels always observe any 
safety guidelines posted at the service 

station.

<

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

>

a reduced efficiency of the fuel-vapor 
recovery 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

Do not fill the tank with leaded fuel, as this 
would cause permanent damage to the 

catalytic converter.

<

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Required fuel

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: 87

>

335i: 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 mini-
mum specified 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 10% ethanol or other 
oxygenates with up to 2.8% oxygen by weight, 
that is, 15% MTBE or 3% 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 
drivability, 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 
you are using, we recommend that you respond 
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.

<

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Wheels and tires

104

Wheels and tires

Tire inflation pressures

Information for your safety

It is not merely the tires' service life, but also 
driving comfort and, to a great extent, driving 
safety that depend on the condition of the tires 
and the maintenance of the specified tire pres-
sure.

Check the tire inflation pressure regularly 
and correct it, if necessary: at least twice a 

month and before starting long trips. If you fail 
to observe this precaution you may be driving 
on tires with incorrect tire pressures, a condi-
tion that can not only compromise your vehi-
cle's driving stability, but also lead to tire dam-
age and the risk of an accident. Do not drive 
with deflated, i.e. flat tires, except when using 
Run-Flat Tires. A flat tire will seriously impair 
your vehicle's handling and braking response. 
Attempts to drive on a flat tire can lead to loss of 
control over the vehicle.

<

Checking pressure

Only check tire inflation pressure when the 
tires are cold. This means after a maximum of 
1.25 miles/2 km driving or when the vehicle has 
been parked for at least 2 hours. When tires are 
warm, the tire inflation pressure is higher.

After correcting tire inflation pressures, 
always reinitialize the Flat Tire Monitor, 

refer to page

65

.

<

Inflation pressure specifications

The tables below provide all the correct inflation 
pressures for the specified tire sizes at ambient 
temperature.

The inflation pressures apply to the tire 
sizes approved and tire brands recom-

mended by BMW; a list of these is available 
from your BMW center.

<

For correct identification of the right tire infla-
tion pressures, observe the following:

>

Tire sizes for your vehicle

>

Load conditions

>

Maximum allowable driving speed

Tire inflation pressures for driving up to 

100 mph or 160 km/h

For normal driving up to 100 mph or 160 km/h 
and to achieve optimum driving comfort, adjust 
pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds up to a maximum of 
100 mph or 160 km/h.
These tire inflation pressures can also be found 
on the driver's-side door post when the driver's 
door is open.

The maximum permissible speed for 
these tire pressures is 100 mph or 

160 km/h. Do not exceed this speed, otherwise 
tire damage and accidents could occur.

<

Tire inflation pressures for driving 

above 100 mph or 160 km/h

In order to drive at maximum speeds in 
excess of 100 mph or 160 km/h, adjust 

pressures to the respective tire inflation pres-
sures listed on the following pages in the col-
umns for traveling speeds including those 
exceeding 100 mph or 160 km/h. Otherwise tire 
damage and accidents could occur.

<

Observe all national and local maximum speed 
limits, otherwise violations of the laws could 
occur.

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Tire inflation pressures for the 328i

Tire size 

Pressure specifications in psi/kPa 

Traveling speeds

up to a max. of

100 mph / 160 km/h

Traveling speeds

including those exceeding

100 mph / 160 km/h

All pressure specifications in 
the table are indicated in 
psi/kilopascal with cold tires. 
Cold = ambient temperature

without Sports package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 H M+S
225/45 R 17 94 V M+S XL

32/220

33/230

32/220

32/220

35/240

42/290

Front: 225/45 R 17 91 V

32/220

-

32/220

-

35/240

-

Rear: 255/40 R 17 94 V

-

32/220

-

32/220

-

38/260

Front: 225/35 R 19 88 Y XL

33/230

-

32/220

-

35/240

-

Rear: 255/30 R 19 91 Y XL

-

38/260

-

32/220

-

42/290

with Sports package:
205/55 R 16 91 H M+S
225/50 R 16 92 H M+S
225/45 R 17 H M+S
225/45 R 17 94 V M+S XL

32/220

33/230

32/220

33/230

35/240

42/290

Front: 225/45 R 17 91 V

32/220

-

32/220

-

35/240

-

Rear: 255/40 R 17 94 V

-

32/220

-

32/220

-

38/260

Front: 225/35 R 19 88 Y XL

33/230

-

32/220

-

36/250

-

Rear: 255/30 R 19 91 Y XL

-

38/260

-

32/220

-

42/290

More details on permissible loads and weights can be found on page

140

.

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Wheels and tires

106

Tire inflation pressures for the 335i

Tire size 

Pressure specifications in psi/kPa 

Traveling speeds

up to a max. of

100 mph  /  160 km/h

Traveling speeds

including those exceeding

100 mph / 160 km/h

All pressure specifications in 
the table are indicated in 
psi/kilopascal with cold tires. 
Cold = ambient temperature

without Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S

32/220

35/240

32/220

33/230

35/240

42/290

Front: 225/40 R 18 88 W

33/230

-

32/220

-

36/250

-

Rear: 255/35 R 18 90 W

-

35/240

-

35/240

-

44/300

Front: 225/40 R 18 88 Y

33/230

-

32/220

-

32/220

-

Rear: 255/35 R 18 90 Y

-

35/240

-

32/220

-

38/260

Front: 225/35 R 19 88 Y XL

36/250

-

33/230

-

36/250

-

Rear: 255/30 R 19 91 Y XL

-

39/270

-

33/230

-

44/300

with Sports package:
225/45 R 17 91 H M+S
225/45 R 17 94 V M+S

32/220

35/240

32/220

33/230

36/250

44/300

Front: 225/40 R 18 88 W

33/230

-

33/230

-

38/260

-

Rear: 255/35 R 18 90 W

-

35/240

-

35/240

-

44/300

Front: 225/40 R 18 88 Y

33/230

-

32/220

-

33/230

-

Rear: 255/35 R 18 90 Y

-

35/240

-

32/220

-

38/260

Front: 225/35 R 19 88 Y XL

36/250

-

35/240

-

38/260

-

Rear: 255/30 R 19 91 Y XL

-

39/270

-

35/240

-

44/300

More details on permissible loads and weights can be found on page

140

.

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nce

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 107

Tire identification marks

Knowledge of the labeling on the side of the tire 
makes it easier to identify and choose the right 
tires.

Tire size

Speed code letter

Q = up to 100 mph or 160 km/h
T = up to 118 mph or 190 km/h
H = up to 131 mph or 210 km/h
V = up to 150 mph or 240 km/h
W = up to 167 mph or 270 km/h
Y = up to 186 mph or 300 km/h

Tire Identification Number

Tires with DOT codes meet the guidelines of 
the US Department of Transportation.
DOT code:

Tire age

The manufacturing date of tires is contained in 
the tire coding: DOT … 0705 means that the 
tire was manufactured in week 7 of 2005.
BMW recommends that you replace all tires 
after 6 years at most, even if some tires may last 
for 10 years.

Uniform Tire Quality Grading

Quality grades can be found where applicable 
on the tire sidewall between tread shoulder and 
maximum section width. For example:
Tread wear 200 Traction AA 
Temperature A

DOT Quality Grades

Tread wear 
Traction AA A B C 
Temperature A B C

All passenger car tires must conform to 
Federal Safety Requirements in addition 

to these grades.

<

Tread wear

The tread wear grade is a comparative rating 
based on the wear rate of the tire when tested 
under controlled conditions on a specified gov-
ernment test course. For example, a tire graded 
150 would wear one and one-half (1

γ) times as 

well on the government course as a tire graded 
100. The relative performance of tires depends 
upon the actual conditions of their use, how-
ever, and may depart significantly from the 
norm due to variations in driving habits, service 
practices and differences in road characteris-
tics and climate.

Traction

The traction grades, from highest to lowest, are 
AA, A, B, and C. 
Those grades represent the tire's ability to stop 
on wet pavement as measured under controlled 
conditions on specified government test sur-
faces of asphalt and concrete. A tire marked C 
may have poor traction performance.

The traction grade assigned to this tire is 
based on straight-ahead braking traction 

tests, and does not include acceleration, cor-
nering, hydroplaning, or peak traction charac-
teristics.

<

e.g.
Nominal width in mm
Aspect ratio in 

Ξ

Radial belt construction
Rim diameter in inches
Load rating,
not on ZR tires
Speed code letter, in
front of the R on ZR tires

225/45 R

1

7 91 V

e.g.
Manufacturer's code 
for tire make
Tire size and 
tire design
Tire age

DOT xxxx xxx 0705

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