2012 BMW M3 CONVERTIBLE engine

203
Maintenance
Mobility
Socket for Onboard
Diagnosis OBD
On the drive r's side is a n OBD so cket f or check-
ing components relevant to the composition of
the vehicle's emissions.
Emissions
The warning lamp lights up:
The vehicle is producing higher emis-
sions. The trip can be continued. Have
the car checked as soon as possible.
Canadian models display this warning
lamp.
The lamp flashes under ce rtain conditions. This
indicates excessive misfiring in the engine. If
this happens, you should reduce your speed
and visit your nearest BMW center as soon as
possible. Severe engine misfiring can quickly
lead to serious damage of emissions-related
components, especially the catalytic converter.
The warning lamp lights up if the fuel
cap is not properly tightened and the
OBD system assumes that fuel vapor
is escaping. Make sure that the fuel cap is cor-
rectly positioned and close it until it audibly
clicks.
Data memory
Your vehicle records data about the operation,
faults, and user settings. These data are stored
in the vehicle and in extr act form, in the remote
control, and can be read out using suitable
devices at your BMW center. The data that are
read out are used to support service proce-
dures and repairs or to optimize and expand
vehicle functions. If you have a BMW Assist
contract, certain vehicle data can also be trans-
mitted directly from the vehicle in order to
enable the desired services.
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Care
Mobility
Automatic transmission
Before driving into an
automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1. Insert the remote cont rol into the ignition
lock, even with Comfort Access.
2. Move the selector lever to position N.
3. Release the parking brake.
4. Switch off the engine.
5. Leave the remote control in the ignition lock
so that the vehicle can roll.
Sport automatic transmission with
double clutch
Before driving into an automatic car wash, per-
form the following steps to ensure that the vehi-
cle can roll:
1. Insert the remote cont rol into the ignition
lock, even with Comfort Access.
2. Engage transmission position N.
3. Release the parking brake.
4. Switch off the engine.
5. Leave the remote control in the ignition lock
so that the vehicle can roll.
The transmission is switched into position P:
> Automatically after approx. 30 minutes
> If you remove the infrared remote control
from the ignition lock
Steam jets/high-pressure washers
When using steam jets or high-pressure
washers, make sure to maintain sufficient
distance from the vehicle and do not exceed a
temperature of 140 7/60 6.
Insufficient clearance or excessive pressure or
temperature can lead to component damage or
water penetration. Follow the operating instruc-
tions of the high-pressure washer. <
When using high-pressure washers, do
not spray the sensors, e.g. of the Park
Distance Control, for an extended period and maintain a distance of at least 1 ft/30 cm from
them.
<
Manual car wash
When washing the vehicle by hand, use large
quantities of water an d car shampoo if neces-
sary. Clean the vehicle with a sponge or wash-
ing brush, applying light pressure only.
Before cleaning the windshield, deacti-
vate the rain sensor or switch off the igni-
tion to prevent unintentional activation of the
wipers. <
Observe local regulations pertaining to
washing vehicles by hand. <
Headlamps
Do not rub them dry and do not use abrasive or
corrosive cleaning agents.
Loosen dirt, e.g. insects, with shampoo or
insect remover and wash away with copious
quantities of water.
Thaw ice with a windshield deicer and do not
use an ice scraper.
Windows
Clean the inside and outside surfaces of the
windows and the mirrors with window cleaner.
Do not clean the mirrors with cleaners
containing quartz. <
Convertible: retractable hardtop
Proceed as you would in a normal car wash.
When you open a wet hardtop, water
drops may run into the cargo area. If nec-
essary, remove items from the cargo area
beforehand to avoid water stains or soiling. <
Paintwork care
Regular care contributes to value retention and
protects the paintwork against the long-term
effects of damaging substances.
Region-specific environmental influences can
damage the vehicle paintwork. Therefore, it is
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MobilityReplacing components
When mounting new tires or changing over
from summer to winter tires and vice versa,
mount run-flat tires for your own safety. In the
event of a flat, no spare wheel is available. Your
BMW center will be glad to advise you. Refer
also to New wheels and tires, page 195.
The tools for changing wheels are avail-
able as optional accessories from your
BMW center. <
Jack mounting points
The jacking points are at the positions shown in
the illustration.
Vehicle battery
Battery care
The battery is 100 % maintenance-free, the
electrolyte will last for the life of the battery
when the vehicle is operated in a temperate cli-
mate. Your BMW center will be glad to advise in
all matters concerning the battery.
Battery replacing
Only use vehicle batteries that have been
approved for your vehicle by the manu-
facturer; otherwise, the vehicle could be dam-
aged and systems or functions may not be fully
available. <
After a battery replacem ent, have the battery
registered on the vehicle by your service center
to ensure that all comfort functions are fully
available.
Charging the battery
Note
Do not connect battery chargers to the
sockets built into the vehicle at the plant;
doing so may dama ge the vehicle.<
Jump-starting terminals
Only charge the battery in the vehicle via the
terminals in the engine compartment with the
engine off. Connections, refer to Jump-starting
on page216.
Power failure
After a temporary power lo ss, the functioning of
some equipment may be limited and require
reinitialization. Individual settings may likewise
have been lost and will have to be programmed:
> Time and date
These values must be updated, refer to
page 86.
> Radio
In some cases, statio ns may have to be
stored again, refer to page 144.
> Glass roof
It may happen that the roof can only be
tilted. The system must be initialized.
Please contact your BMW center.
> Seat and mirror memory
The positions must be stored again, refer to
page 48.
> Inside rearview mirror with digital compass
The system must be calibrated, refer to
page 119.
> Active steering
The system automatically initializes itself
briefly during a trip. The system is deacti-
vated during this time, refer to page 97.
> xDrive
The system automatically initializes itself
during a trip. Indicator lamps light up during
this time. If the lamps do not go out during
the current trip, have the system checked.
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MobilityGiving and receiving assistance
Convertible
The warning triangle is lo cated in a holder in the
trunk lid. Press the tabs to take it out.
Jump-starting
If the car's own battery is flat, your BMW's
engine can be starte d by connecting two
jumper cables to another vehicle's battery. You
can also use the same method to help start
another vehicle. Only use jumper cables with
fully-insulated clamp handles.
Do not touch any electrically live parts
when the engine is runn ing, or a fatal acci-
dent may occur. Carefully adhere to the follow-
ing sequence, both to pr event damage to one or
both vehicles, and to guard against possible
personal injuries. <
Preparation
1.Check whether the ba ttery of the other
vehicle has a voltage of 12 volts and
approximately the same capacitance in Ah.
This information can be found on the bat-
tery.
2. Switch off the engine of the assisting vehi-
cle.
3. Switch off any consumers in both vehicles.
There must not be any contact between
the bodies of the two vehicles; otherwise,
there is a danger of shorting. <
Connecting jumper cables
Connect the jumper cables in the correct
order, so that no sparks which could
cause injury occur. <
Your BMW has a jump-starting connection in
the engine compartment which acts as the bat-
tery's positive terminal, refer also to the Engine
compartment overview on page 197. The cap is
marked with +.
1. Pull the cap of the BMW jump-starting con-
nection up to remove.
2. Attach one terminal clamp of the plus/+
jumper cable to the positive terminal of the
battery or a starting-aid terminal of the vehi-
cle providing assistance.
3. Attach the second terminal clamp of the
plus/+ jumper cable to the positive terminal
of the battery or a star ting-aid terminal of
the vehicle to be started.
4. Attach one terminal clamp of the minus/–
jumper cable to the nega tive terminal of the
battery or to an engine or body ground of
the assisting vehicle.
Your BMW has a special nut as body ground
or negative pole.
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Giving and receiving assistance
Mobility
5.
Attach the second te rminal clamp of the
minus/– jumper cable to the negative termi-
nal of the battery or to the engine or body
ground of the vehicle to be started.
Starting the engine
1. Start the engine of the donor vehicle and
allow it to run for a fe w minutes at slightly
increased idle speed.
2. Start the engine on the other vehicle in the
usual way.
If the first start attempt is not successful,
wait a few minutes be fore another attempt
in order to allow the discharged battery to
recharge.
3. Let the engines run for a few minutes.
4. Disconnect the jumper cables by reversing
the above connecting sequence.
If necessary, have th e battery checked and
recharged.
Never use spray fluids to start the
engine. <
Tow-starting, towing away
Observe the applicable laws and regula-
tions for tow-starting and towing vehi-
cles. <
Do not transport any passengers other
than the driver in a vehicle that is being
towed. <
Using a tow fitting
The screw-in tow fitting must always be carried
in the car. It can be sc rewed in at the front or
rear of the BMW.
Coupe: it is stored in the onboard vehicle tool kit
underneath the cover on the right-hand side of
the cargo area, refer to page 208.
Convertible: it is stored in the onboard vehicle
tool kit underneath the ca rgo area floor, refer to
page 208. Use only the tow fitting provided with the
vehicle and screw it all the way in. Use the
tow fitting for towing on paved roads only. Avoid
lateral loading of the tow fitting, e.g. do not lift
the vehicle by the tow fitting. Otherwise, the
tow fitting and the vehicle could be damaged. <
Access to screw thread
Release the cover panel in the bumper:
Press on the upper part of the cover panel.
Front
Rear
Being towed
Make sure that the ignition is switched on,
refer to page57; otherwise, the low-beam
headlamps, tail lamps, turn signal indicators and
windshield wipers may be unavailable.
Power steering assistance is not available when
the engine is not running. Thus, braking and
steering will require in creased effort. Active
steering is not active an d it will be necessary to
turn the steering wheel further. <
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Giving and receiving assistance
Mobility
Do not tow the vehicle wi
th just the rear axle
raised as this may caus e the steering to turn.
With a tow truck: vehicle with xDrive
Do not tow a BMW with xDrive with just
the front or rear axle raised; otherwise, the
wheels could lock up and the transfer case
could be damaged. <
Have the BMW transported on a flatbed surface
only.
Tow-starting
Avoid tow-starting the vehicle whenever possi-
ble; instead, jump-start the engine, refer to
page 216Vehicles with a catalytic converter
should only be tow-star ted when the engine is
cold; vehicles with an automatic transmission or
Sport automatic transmission with double
clutch cannot be tow-started at all.
1. Switch on hazard warning flashers, comply
with local regulations.
2. Switch on the ignition, refer to page 57.
3. Shift into 3rd gear.
4. Have the vehicle tow-st arted with the clutch
depressed and slowly release the clutch.
After the engine starts, immediately
depress the clutch completely again.
5. Stop at a suitable location, remove the tow
bar or rope and switch off the hazard warn-
ing flashers.
6. Have the vehicle checked.
With xDrive: do not activate Hill Descent
Control HDC when the vehicle is being
tow-started, page 92.<
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Indicator and warning lamps
Mobility
Lights up briefly:
Approx. 2.1 US gal/8 liters of fuel
remain in the tank
Remains on:
Remaining operating range is no more
than 30 miles/50 km, refer to page
79
Engine refuses to start Depress th e brake or clutch in order to
start the engine , refer to page58.
Ignition switched on and driver's door
open Switch off the ignition, refer to page
57,
or close the driver's door.
The desired function cannot currently
be carried out
Parking lamps still on Switch off the parking lamps, refer to
page 103.
Roadside parking lamps still on Switch off the roadside parking lamps,
refer to page 105.
Door open
Engine compartment lid open
Lights up in red:
Backrest of driver's seat or front pas-
senger seat not locked Lock the backrest; otherwise, the safety
belt will not provide protection in the
event of an accident.
Lights up in yellow:
Seat backrest monitor malfunctioning Engage the seat backrest. Have it
checked by your nearest BMW center.
12Cause What to do
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MobilityIndicator and warning lamps
Lights up in red:
Roof activation system failure Roof cannot be moved. If the retract-
able hardtop does not lock, contact
your nearest BMW center.
Roof activation system malfunctioni ng Roof movement incomplete. Please
check if the roof is blocked, then press
or pull the switch again.
Lights up in yellow:
Roof drive overheated Roof activation temporarily limited to closing only.
Cargo area partition not in lowermost
position Press down the cargo area partition
until it engages on both sides.
Vehicle not level, ro of activation not
possible Move the vehicle to a level surface.
Rollover protection system malfunc-
tioning Have the rollover protection system
checked by the nearest BMW center.
Trunk lid open
Fuel cap is open Make sure that the fuel cap is correctly positioned and close it until it audibly
clicks. Do not jam the strap between the
fuel cap and the vehicle.
Windshield washer fluid level too low Add washer fluid as soon as possible, refer to page69.
Lights up in red:
Service due Arrange a service appointment. Check service requirements, refer to
page84.
Lights up in yellow:
The engine will start the next time the
Start/Stop button is briefly pressed,
possibly without the brake or clutch
being depressed
Remote control malfunctioning or, in
cars with Comfort Access, not
detected The engine cannot be started. Have the
remote control checked, if necessary.
Battery in remote co ntrol discharged Use the remote control for a longer jour-
ney or, in cars with Comfort Access,
replace the battery.
12Cause What to do
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