2008 BMW 335XI CONVERTIBLE check engine light

Maintenance
230
Socket for On-Board
Diagnosis OBD
Primary components that make up exhaust
emissions can be checked by a device via the
OBD socket.
This socket is located on the driver's side to the
left, on the bottom of the instrument panel
underneath a cover.
Exhaust emission values
The warning lamp lights up:
The exhaust emission values have
worsened. Have the car checked as
soon as possible.
Canadian models display this warning
lamp.
The lamp flashes under certain 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 comes on if the gas
cap is not properly tightened and the
OBD system assumes that fuel vapor
is escaping. If the gas cap is then tightened, the
warning lamp should go out within a few days.
Event data recorders
Your vehicle may be equipped with one or sev-
eral measuring or diagnostic modules or a
device for recording or sending certain vehicle
data or information. In addition, if you have
signed a service contract for BMW Assist, cer-tain vehicle data may be transmitted or
recorded in order to facilitate the corresponding
services.
Care
Important information on the care and mainte-
nance of your BMW is contained in the Caring
for your vehicle brochure.

Giving and receiving assistance
238
Preparation
1.Check whether the battery 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 page225. 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 starting-aid terminal of
the vehicle to be started.
4.Attach one terminal clamp of the minus/–
jumper cable to the negative 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.
5.Attach the second terminal 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 few 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 before 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 the 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.<

Reference 255
At a glance
Controls
Driving tips
Communications
Navigation
Entertainment
Mobility
Changes, technical, refer to
For your own safety5
Changing bulbs, refer to
Lamps and bulbs231
Changing the language on the
Control Display86
Changing the measurement
units on the Control
Display78
Changing wheels234
Chassis number, refer to
Engine compartment225
Check Control83
"Check Control
messages"85
Child-restraint fixing system
LATCH57
Child-restraint systems56
Child seats, refer to
Transporting children
safely56
Chrome parts, care, refer to
Caring for your vehicle
brochure
Cigarette lighter, refer to
Lighter116
Cleaning, refer to Caring for
your vehicle brochure
Cleaning headlamps65
– washer fluid65
"Climate"105
Clock74
– 12h/24h mode82
– setting time81
Closing
– from inside32
– from outside29
Clothes hooks115
Cockpit10
Cold start, refer to Starting the
engine60
Combined instrument, refer to
Instrument cluster12
Comfort access, refer to
Convenient access36
Comfort area, refer to Around
the center console14
"Communication"192,202,2
03,204Compact disc, refer to
– CD changer173
– CD player173
Compartment for remote
control, refer to Ignition
lock59
Compass112
Computer75
– displays on Control
Display76
– hour signal82
Computer, refer to iDrive16
"Concert hall" for Tone
control162
"Concierge"
204
Concierge service204
Condensation, refer to When
the vehicle is parked126
Condition Based Service
CBS229
Configuring settings, refer to
Personal Profile28
Confirmation signals for
locking/unlocking the
vehicle31
Connecting vacuum cleaner,
refer to Connecting
electrical appliances116
Consumption, refer to
Average consumption76
Consumption display
– average consumption76
"Continue guidance to
destination?"148
Control Center, refer to
iDrive16
Control Display
– brightness86
– changing the language86
– switching off/on21
Control Display, refer to
iDrive16
Controller, refer to iDrive16
Controls and displays10
Control unit, refer to iDrive16
Convenient access36
– replacing the battery38
– what to observe before
entering a car wash37Convenient loading in
convertible31
Convenient operation
– glass roof30
– glass roof with convenient
access37
– retractable hardtop30
– windows30
– windows with convenient
access37
Convertible
– bag holder118
– convenient loading31
– enlarging cargo bay117
– folding down rear
backrest118
– retractable hardtop41
– rollover protection
system98
– securing cargo128
– stowing cargo127
Coolant227
– checking level228
Coolant temperature75
Cooling, maximum106
Cooling fluid, refer to
Coolant227
Cooling system, refer to
Coolant227
Copyright2
Corner-illuminating lamps,
refer to Adaptive Head
Light101
Cornering lamps, refer to
Adaptive Head Light101
Correct tires222
Courtesy lamps, refer to
Interior lamps103
Cross-hairs in navigation139
Cruise control66
– active67
– malfunction67
Cruising range75
Cup holders115
Curb weight, refer to
Weights247
"Current position"155

Everything from A - Z
268 Ventilation, refer to
Climate104
Ventilation while at a
standstill108
Vents, refer to Ventilation107
"Vent settings"105
Voice commands
– overview23
– short commands248
Voice instructions from
navigation system150
– muting55,151
– repeating55,151
– switching on/off150
– volume151
Voice phone book198
Volume160
– audio sources160
– fuel tank, refer to
Capacities247
– mobile phone191
– speed-dependent
control161
– voice instructions151
Volume distribution
– front/rear161
– left/right161
W
Warning and indicator
lamps13
Warning messages, refer to
Check Control83
Warning triangle237
Washer fluid65
– content of the reservoir65
Washer fluid reservoir65
Washing the car, refer to
Caring for your vehicle
brochure
Waste tray, refer to
Ashtray116
Water on roads, refer to
Driving through water126
Waveband with the radio164
Wear indicators in tires, refer
to Minimum tread depth221
Weights247Welcome lamps100
"Welcome light"101
Wheel/tire combination, refer
to Correct wheels and
tires222
Wheelbase, refer to
Dimensions245
Wheels, new222
Wheels and tires212
Width, refer to
Dimensions245
Wind deflector42
Windows38
– convenient operation30
– convenient operation with
convenient access37
– opening, closing38
– pinch protection system39
Windows, indicator on Control
Display16
Windshield
– cleaning65
Windshield wash64
– filling capacity, reservoir247
– nozzles65
– reservoir for washer fluid65
– washer fluid65
Windshield wiper blades,
changing231
Windshield wipers, blades,
care, refer to Caring for your
vehicle brochure
Windshield wipers, refer to
Wiper system64
Winter tires223
– setting speed limit85
– storage223
Wiper blade replacement231
Wiper system64
"With highways" in
navigation145
Wooden trim, refer to Caring
for your vehicle brochure
Word-matching principle for
navigation146
Work in the engine
compartment224
Wrench/screwdriver, refer to
Onboard tool kit231
X
xDrive90
Xenon lamps
– replacing bulb232
Y
Your individual vehicle
– settings, refer to Personal
Profile28