catalytic converter BMW 525I 2005 Owners Manual

Things to remember when driving
106
Things to remember when driving
Break-in period
Moving parts need breaking-in time to adjust to
each other. To ensure that your vehicle contin-
ues to provide optimized economy of operation
throughout an extended service life, we request
that you devote careful attention to the follow-
ing section.
Engine and differential
Up to 1,200 miles/2,000 km:
You should attempt to vary both engine and
vehicle speeds. Until the break-in period has
been completed, you should also refrain from
exceeding an engine speed of 4,500 rpm or a
driving speed of 100 mph/160 km/h.
Always obey all official speed limits.
Avoid full-throttle operation and use of the
transmission's kick-down mode during these
initial miles.
Once you have driven 1,200 miles/2000 km, the
engine and vehicle speeds can be gradually
increased.
SMG Sequential manual transmission
Do not use the acceleration assistant during the
break-in period, refer to page55.
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 reservedly 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.
Clutch
The function of the clutch is only at its opti-
mized level after a distance driven of approx.
300 miles/500 km. During this break-in period,
engage the clutch gently.
Following part replacement
Observe the break-in instructions again if com-
ponents mentioned above must be replaced
after subsequent driving operation.
General driving notes
Closing luggage compartment lid
Operate the vehicle only when the lug-
gage compartment lid is completely
closed. Otherwise, exhaust fumes could pene-
trate to the interior of the vehicle.<
If special circumstances should make it abso-
lutely necessary to operate the vehicle with the
luggage compartment lid open:
1.Close all windows and the glass sunroof.
2.Increase the air volume of the automatic
climate control to a high level, refer to
page91.
Hot exhaust system
As in all vehicles equipped with a catalytic
converter, extremely high temperatures
are generated in this vehicle. Do not remove the
heat shields installed adjacent to various sec-
tions of the exhaust system, and never apply
undercoating to them. When driving, standing
at idle and while parking take care to avoid pos-
sible contact between the hot exhaust system
and any highly flammable materials such as hay,
leaves, grass, etc. Such contact could lead to a
fire, and with it the risk of serious property dam-
age as well as personal injury.<

Mobility
169Reference
At a glance
Controls
Driving tips
Communication
Navigation
Entertainment
Fuel specifications
The engine uses lead-free gasoline only.
Required fuel
Premium Unleaded Gasoline
The minimum octane rating is 91.
If you use gasoline with this minimum octane
rating, the engine may produce knocking
sounds when starting at high outside tempera-
tures. This has no affect on the engine life.
Minimum octane rating corresponds to the Anti
Knock Index AKI and is determined according
to the so-called (R+M)/2 method.
Do not use leaded gasoline, as otherwise
the lambda probe and catalytic converter
will be permanently 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 drivability 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.
Failure to comply with these recommendations
may also result in unscheduled maintenance.<

Mobility
181Reference
At a glance
Controls
Driving tips
Communication
Navigation
Entertainment
OBD Socket
The Onboard Diagnostics OBD interface
socket is located on the left of the driver's side
under the instrument panel and under a cover.
The cover has the letters OBD on it.
The purpose of the OBD system is to ensure
proper operation of the emission control sys-
tem for the vehicle's lifetime. The system mon-
itors emission-related components and sys-
tems for deterioration and malfunction.
An illuminated lamp informs you of the
need for service, not of the need to stop
the vehicle. However, the systems
should be checked by your BMW center at the
earliest possible opportunity.
Display of the previously described
malfunction on Canadian models.
Under certain conditions, the indicator will blink
or flash. This indicates a rather severe level of
engine misfire. When this occurs, you should
reduce speed and consult the nearest BMW
center as soon as possible. Severe engine mis-
fire over only a short period of time can seri-
ously damage emissions control components,
especially the catalytic converter.
When the fuel filler cap is not properly
tightened, the OBD system can detect
the vapor leak and the indicator will light up. If
the filler cap is subsequently tightened, the
indicator should go out within a few days.<
Event Data Recorders
Your vehicle may be equipped with one or more
sensing and diagnostic modules or a recording
device capable of recording or transmitting cer-
tain vehicle data or information. In addition, if
you have a Subscription Service Agreement for
the BMW Assist system, certain vehicle infor-
mation may be transmitted or recorded in order
to provide such 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 to Z
204 Braking
– CBC Cornering Brake
Control77
– DBC Dynamic Brake
Control77
– electronic brake-force
distribution77
– refer to Braking safely107
Breakdown assistance163
Breakdown services, refer to
Roadside Assistance190
Breaking-in the clutch106
Breaking-in the
differential106
Break-in period106
"Brightness"73
Brightness of Control
Display73
Buttons on steering wheel11
C
California Proposition 65
Warning6
"Call"155
Call
– accepting154
– displaying accepted156
– ending155
– in absence156
– starting154
Calling
– from phone book155
– from Top 8 list156
– redialing156
– refer to telephone Owner's
Manual
"Calling sender"158
Can holder, refer to Cup
holders99
Capacities198
Car battery, refer to Vehicle
battery187
Car care, refer to Caring for
your vehicle brochure
Car-care products, refer to
Caring for your vehicle
brochure"Car data"70
Care181
– refer to Caring for your
vehicle brochure
Cargo, securing102,109
Cargo loading108
Caring for artificial leather,
refer to Caring for your
vehicle brochure
Caring for leather, refer to
Caring for your vehicle
brochure
Caring for light-alloy wheels,
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 points186
Car keys, refer to Key set28
Car phone153
– installation location, refer to
Center armrest98
– refer to Portable phone152
– refer to separate Owner's
Manual
Car radio, refer to Radio138
Car vacuum cleaner
connection, refer to
Sockets100
Car wash108
– also refer to Caring for your
vehicle brochure
Catalytic converter, refer to
Hot exhaust system106
"Categories"143
CBC Cornering Brake
Control77
CBS Condition Based
Service180
"CD"133,145CD changer145
– controls132
– fast forward/reverse147
– installation location147
– playing a track147
– random order147
– repeating a track146
– selecting a CD146
– selecting a track146
– switching on/off132
– tone control133
– volume133
CD player145
– controls132
– fast forward/reverse147
– playing a track147
– random order147
– repeating a track146
– selecting a track146
– switching on/off132
– tone control133
– volume133
Center armrest
– front98
– rear100
Center brake lamp184
Center console14
"Central locking"29
Central locking system29
– from inside vehicle31
Changes, technical
– refer to For your own
safety6
– refer to Parts and
accessories6
Changing gear
– automatic transmission with
Steptronic55
Changing settings
– on Control Display73
Changing the language on the
Control Display74
Changing the measurement
units on the Control
Display73
Changing wheels174,185
CHECK button69
Check Control67