2010 BMW M3 brake

Replacing components
150
Changing low-beam and high-beam
bulbs
1.Remove the relevant cover for the head-
lamp.
2.Disconnect the plug from the lamp.
3.Push the wire bracket to the side out of the
mounting, arrow1, and fold it down,
arrow2.
4.Remove the bulb.
5.Insert new bulb as shown in the detail of the
illustration above.
6.Fold up the wire bracket and engage it.
7.Connect the plug.
8.Reattach the cover.
Parking lamps, roadside parking lamps
W5W bulb, 5 watts
1.Remove the cover for the high-beam head-
lamp.
2.Pull out the bulb socket, see arrow.
3.Remove and replace the bulb.
4.Insert bulb socket.
5.Reattach the cover.
Turn signals, front
PY24W bulb, 24 watts
1.Open the flap in the wheel well, refer to
Access through the wheel well on
page149.
2.Rotate turn signal bulb socket 1 to the left
and remove.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Insert turn signal bulb socket 1.
5.Attach the flap to the wheel well.
Tail lamps
Sedan
>Brake lamp in the trunk lid:
H21W bulb, 21 watts
>Backup lamp:
W16W bulb, 16 watts
>Other lamps:
P21W bulb, 21 watts
The tail lamps are divided in two parts. One part
is in the trunk lid, the other is in the fender.
1Brake lamp
2Roadside parking lamp/tail lamp, LED

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151
3Turn signal, LED
4Backup lamp
5Tail lamp, LED
6Brake lamp
If one of the bulbs2, 3 or 5 malfunctions, please
contact your BMW center or a workshop that
works according to BMW repair procedures
with correspondingly trained personnel.
Sports Wagon
>Brake lamp in the tailgate:
H21W bulb, 21 watts
>Backup lamp:
W16W bulb, 16 watts
>Other lamps:
P21W bulb, 21 watts
The tail lamps are divided in two parts. One part
is in the tailgate, the other is in the fender.
1Brake lamp
2Roadside parking lamp/tail lamp, LED
3Turn signal, LED
4Backup lamp
5Tail lamp, LED
6Brake lamp
If one of the bulbs2, 3 or 5 malfunctions, please
contact your BMW center or a workshop that
works according to BMW repair procedures
with correspondingly trained personnel.
Fender-mounted lamps
Sedan
1.Using a screwdriver, pry off the cover in the
cargo area or release the turn-lock fastener by turning it counterclockwise and remove
the cover.
2.Loosen the bulb holder at the clip, see
arrow, and pull out.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the cover in the cargo area.
Sports Wagon
1.Left-hand lamps:
Open the flap on the left-hand side of the
cargo area.
Right-hand lamps:
Open the cargo area floor panel. Turn the
screws on the cover, arrows 1, 90° and take
out the cover, arrow 2.

Replacing components
152 2.Loosen the bulb holder at the clip, see
arrow, and pull out.
3.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
4.Re-engage the bulb holder so that it audibly
clicks into place.
5.Reattach the cover in the cargo area.
Lamps in the trunk lid/tailgate
Sedan
1.Take the warning triangle out of its holder,
refer to page156. Unscrew the holder using
the screwdriver from the onboard vehicle
tool kit.
2.Pry out the plastic plugs in the trim of the
trunk lid using a screwdriver and remove the
trim.
3.Release the bulb holder at the clip, see
arrow, and remove.
4.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
5.Re-engage the bulb holder so that it audibly
clicks into place.6.Reattach the trim of the trunk lid and the
holder for the warning triangle.
Sports Wagon
1.Use a screwdriver to press out the cover at
the clips, see arrows, and fold it downward.
2.Fold away the foam insulating material.
3.Release the bulb holder at the clip, see
arrow, and remove.
4.Apply gentle pressure to the bulb while
turning it to the left for removal and replace-
ment.
5.Re-engage the bulb holder so that it audibly
clicks into place.
6.Reattach the trim of the tailgate.
License plate lamp, center brake lamp,
parking/tail lamp and turn signal*
These lamps use LED technology for operation.
In the event of a malfunction, please contact
your BMW center or a workshop that works
according to BMW repair procedures with cor-
respondingly trained personnel.

Indicator and warning lamps
160
Indicator and warning lamps
Indicator and warning lamps can light up in a
variety of combinations and colors. See the
table for information on causes and how to
react. Note whether a lamp comes on alone or in
combination with another. Some lamps can
light up in different colors. Corresponding dis-
tinctions are made in the text.
12Cause What to do
Turn signals
High beams/headlamp flasher
switched on
Fog lamps switched on
Fasten safety belts Fasten your safety belt, refer also to
page39.
Indication in US models
Parking brake applied Release the parking brake.
Indication in Canadian models
Parking brake applied Release the parking brake.
Outside temperature warning Drive cautiously, refer also to page61.
Lights up briefly:
Gasoline engine: approx. 2.1 US gal-
lons/8 liters of fuel remain in the tank
Diesel engine: approx. 1.7 US gallons/
6.5 liters of fuel remain in the tank
Remains on:
Remaining operating range is no more
than 30 miles/50 km, refer to page62
Engine refuses to start Depress the brake or clutch in order to
start the engine, refer to page47.
Ignition switched on and driver's door
openSwitch off the ignition, refer to page46,
or close the driver's door.
Parking lamps still on Switch off the parking lamps, refer to
page79.

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161
Roadside parking lamps still on Switch off the roadside parking lamps,
refer to page81.
Preheat, refer to page47
Door open
Engine compartment lid open
Trunk lid/tailgate or rear window open
Gas cap is open Make sure that the gas cap is correctly
positioned and close it until it audibly
clicks. Do not jam the strap between the
gas cap and the vehicle.
Windshield washer fluid level too low Add washer fluid as soon as possible,
refer to page52.
Lights up in red:
Service due Arrange a service appointment.
Check service requirements, refer to
page65.
Lights up in yellow:
The engine will start the next time the
start/stop button is touched, possibly
without the brake or clutch being
depressed
Remote control malfunctioning or, in
cars with Comfort Access, not
detectedThe engine cannot be started. Have the
remote control checked, if necessary.
Battery in remote control discharged Use the remote control for a longer jour-
ney or, in cars with Comfort Access,
replace the battery.
Belt tensioners and/or airbag system
failedHave the system checked immediately.
Active steering defective You can continue your journey.
Steering characteristics are modified
and steering wheel could be off-center.
Steer carefully.
Have the system checked as soon as
possible.
12Cause What to do

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163
Lights up in red:
Engine overheating Carefully bring the car to a stop, switch
off the engine and allow it to cool down.
Do not open the hood; otherwise, there
is a risk of injury from scalding. Contact
your BMW center.
Lights up in yellow:
Engine too hot Continue driving at more moderate
speed so that the engine can cool
down. Have the engine checked with-
out delay if the situation reoccurs.
Lights up in red:
Battery is no longer being charged.
Alternator malfunctionSwitch off all unnecessary electrical
consumers. Have the power supply
system checked without delay.
Lights up in yellow:
Battery charge level very low, battery
aged or not securely connectedHave the battery checked as soon as
possible.
Indication in US models
Parking brake applied
Indication in Canadian models
Parking brake applied
Indication in US models
Lights up in red:
Brake fluid level too low Reduced braking effect, stop the car
carefully. Contact your BMW center.
Lights up in yellow:
Drive-off assistant has failed. The car
will not be held in place after the brake
is releasedHave the system checked as soon as
possible.
Indication in Canadian models
Lights up in red:
Brake fluid level too low Reduced braking effect, stop the car
carefully. Contact your BMW center.
Lights up in yellow:
Drive-off assistant has failed. The car
will not be held in place after the brake
is releasedHave the system checked as soon as
possible.
12Cause What to do

Indicator and warning lamps
164Indication in US models
Brake pads worn Have the condition of the brake pads
checked without delay.
Indication in Canadian models
Brake pads worn Have the condition of the brake pads
checked without delay.
Lights up in red: Have the system in question checked
without delay.
>Starter failed or The engine cannot be restarted.
>Ignition malfunctioning. Engine
restart only possible when brake is
depressed or
>Lighting system failed. Low beams/
tail lamps and brake lamps still
operational. All other lamps failedDepress the brake to restart the engine.
Lights up in yellow:
>Control of the brake lamps failed or
>fuel supply malfunctioning You can continue your journey, but
moderate your speed and exercise due
caution. Have the system in question
checked without delay.
Flashing:
Dynamic Stability Control DSC or
Dynamic Traction Control DTC is con-
trolling drive and braking forces, refer
also to page71
Dynamic Traction Control DTC acti-
vated, refer also to page71
Dynamic Stability Control DSC and
Dynamic Traction Control DTC deacti-
vated, refer also to page71Driving stability limited during accelera-
tion and cornering.
Driving style must be readjusted.
Suspension control system failed, refer
also to page70Driving stability limited during accelera-
tion and cornering.
You can continue your journey, but
moderate your speed and exercise due
caution. Have the system checked as
soon as possible.
xDrive has failed, refer also to page72You can continue your journey. Drive
cautiously and think well ahead. Avoid
driving on rough tracks, full-throttle
operation and use of the transmission's
kickdown mode. Have the system
checked immediately.
12Cause What to do

Reference
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167
Vehicles with Tire Pressure Monitor*
Light up in yellow:
Tire Pressure Monitor not initialized Check the inflation pressure and reset
the system, refer to page74
The small lamp flashes in yellow and
then lights up continuously; the larger
lamp comes on in yellow:
>Tire Pressure Monitor has failed.
Punctures are not indicatedHave the system checked.
>A wheel without TPM electronics
has been mountedHave the system checked.
>Interference from systems or
devices that use the same radio fre-
quency. The system automatically
reactivates once it is outside of the
field of interference
Lights up in red:
>Transmission limp-home program
active with restricted range of
gears, possibly with reduced accel-
eration.You can continue your journey, but
moderate your speed and exercise due
caution. Have the system checked
without delay.
Gears can be engaged without
depressing the brakeAlways depress the brake to engage a
gear.
Lights up in yellow:
>Automatic selector lever locked:
Selector lever locked in position P
with engine running or ignition
switched on and brake depressedOverriding selector lever lock, refer to
page50.
>Brake signal malfunctioning: gear
can be engaged without depress-
ing the brakeTo engage a gear while the vehicle is at
a standstill, always step on the brake.
Before leaving the vehicle, engage P
and switch off the engine.
12Cause What to do