brake rotor BMW 128I 2010 E81 Owner's Manual

Things to remember when driving
108
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 kickdown 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.
Saving fuel
The fuel consumption of your vehicle depends
on several factors. You can lower fuel consump-
tion and the environmental impact by taking
certain measures, adjusting your driving style
and having the vehicle serviced regularly.
Remove any unneeded cargo
Additional weight increases fuel consumption.
Remove any mounted parts after you
have finished using them
Remove unneeded additional mirrors, the roof
rack and the rear luggage rack after use.
Mounted parts affect the vehicle's aerodynam-
ics and increase fuel consumption.
Close the windows and glass roof
An open glass roof or window causes higher air
resistance and thus increases fuel consump-
tion.
Check tire inflation pressure regularly
Check the tire inflation pressure 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 warm 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.

Things to remember when driving
110
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 page77.
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 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.
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. This can ultimately
result in a sudden blowout.<
Make sure that no liquids are spilled or
leak from their containers in the cargo

Reference 233
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Base plate for telephone or
mobile phone
– refer to Snap-in adapter176
Bass, tone setting136
Battery213
– charging213
– disposal35,213
– jump-starting216
– temporary power failure213
Battery for mobile phone177
Battery renewal
– remote control for vehicle34
Being towed217
Belts, refer to Safety belts49
Belt tensioner, refer to Safety
belts49
Beverage holders, refer to
Cupholders100
Blower, refer to Air volume93
Bluetooth, activating/
deactivating168
BMW
– car shampoo208
BMW Assist,
activating182,184
BMW Assist180
BMW Maintenance
System203
BMW Search182
Bottle holders, refer to
Cupholders100
Brake Assist, refer to Dynamic
Brake Control76
Brake fluid
– service requirements67
Brake Force Display82
Brake lamps
– Brake Force Display82
– replacing bulb212
Brake pads, breaking in108
Brake rotors110
– brakes108
– breaking in108Brakes
– ABS76
– BMW Maintenance
System203
– braking safely110
– breaking in108
– parking brake57
– service requirements67
Brake system108
– BMW Maintenance
System203
– breaking in108
– disc brakes110
Breakdown services, refer to
Roadside Assistance
215
Breaking in the clutch108
Break-in period108
Bulb changing, refer to Lamps
and bulbs209
Bulbs, changing209
Button for starting the
engine55
Buttons on the steering
wheel11
C
California Proposition 65
warning5
Call
– accepting169
– ending170
– rejecting170
Calling, refer to Phone
numbers, dialing170
Can holders, refer to
Cupholders100
Capacities226
Capacity of the cargo area225
Car battery, refer to Vehicle
battery213
Car care, refer to Care205Care205
– automatic car washes205
– care products205
– carpets207
– CD/DVD drives208
– chrome parts207
– convertible top206
– displays208
– exterior205
– fine wood parts208
– headlamps206
– high-pressure washer206
– interior207
– leather207
– light-alloy wheels207
– paintwork206
– plastic parts208
– rubber seals207
– safety belts208
– sensors and cameras208
– upholstery and cloth
trim207
– washing the car
manually206
– windows206
Cargo, securing112
Cargo area
– capacity225
– Comfort Access34
– enlarging, refer to Through-
loading system102
– lamp, refer to Interior
lamps90
– lid, refer to Trunk lid30
– opening from outside31
Cargo area lid, refer to Trunk
lid30
Cargo area net, refer to
Securing cargo112
Cargo loading111
– securing cargo112
– stowing cargo
111
– vehicle110
Car jack
– jacking points213
Car key, refer to Integrated
key/remote control26