BMW M3 COUPE 2002 E46 Service Manual
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Sliding/tilt sunroof
* 
Safety featureIf the sliding/tilt sunroof encounters 
resistance 
>when it is closing from the raised 
position
>when it is closing from a point 
roughly past the middle of its travel,
the closing cycle is interrupted and the 
sliding/tilt sunroof will open again 
slightly.
Despite this safety feature, be 
extremely careful to ensure that 
the closing path of the roof is not 
obstructed. Otherwise, triggering the 
closing-force limitation may not be 
ensured in some situations (with very 
thin objects, for instance).
You can disable this safety feature by 
pressing the switch beyond the resis-
tance point and holding it.<
Manual operation In the event of an electrical malfunction, 
you can also operate the sliding/tilt 
sunroof manually
1. Remove the interior lamp, then reach 
into the exposed opening and press 
out the cover
2. Use an Allen wrench from the 
onboard tool kit (refer to page 120) to 
turn the sunroof's steel crank in the 
desired direction. 
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For relaxed and fatigue-free driving you 
should select a sitting position that 
reflects your personal requirements. 
Correct sitting position combined with 
safety belts and airbags enhances 
occupant safety in the event of an acci-
dent. To ensure that the vehicle's safety 
systems provide you with optimal 
protection, we request that you direct 
your careful attention to the following 
section.
For additional information on trans-
porting children, refer to page 52.
Sitting correctly with airbags
Maintain a distance to the airbags. 
Always hold the steering wheel by 
the rim to keep any chance of injury to 
hands or arms to an absolute minimum, 
should the airbag be deployed. No one 
and nothing is to come between the 
airbags and the seat occupant.
Never use the front airbag's cover as a 
storage tray or support for objects of 
any kind. Never allow front passengers 
to rest their feet or legs on the airbag 
cover.<
For airbag locations and additional 
information on airbags, refer to 
page 49.
Safe with safety belts
Never allow more than one person 
to wear a single safety belt. Never 
allow infants or small children to ride in 
a passenger's lap. Avoid twisting the 
belt while routing it firmly across the 
hips and shoulder, wear it as snugly 
against your body as possible. Do not 
allow the belt to rest against hard or 
fragile objects. Do not route the belt 
across your neck, or run it across sharp 
edges. Be sure that the belt does not 
become caught or jammed. Avoid 
wearing bulky clothing and pull on the 
lap belt periodically to retension it over 
your shoulders. In the event of a frontal 
impact, a loose lap belt could slide over 
the hips, leading to abdominal injury. In 
addition, the safety belt's restraint 
effectiveness is reduced if the belt is 
worn loosely. Expectant mothers 
should always wear their safety belts, 
taking care to position the lap belt 
against the lower hips, where it will not 
exert pressure against the abdominal 
area.<
For information on using the safety 
belts, refer to page 45.
When adjusting your seat, always 
observe the following precautions
Never try to adjust your seat while 
driving the vehicle. The seat could 
respond with unexpected movement, 
and the ensuing loss of vehicle control 
could lead to an accident. Never ride 
with the backrest reclined to an 
extreme angle (especially important for 
the front passenger to remember). If 
you do so, there is a risk that you will 
slide under the safety belt in an acci-
dent, thus reducing the protection 
provided by the safety belt.< 
Correct sitting position 
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 Seats1 Tilt angle 
2 Longitudinal adjustment
3 Cushion height
4 Backrest angle
The head restraint and the thigh 
support are adjusted manually.
Thigh support Pull the lever and adjust the position of 
the cushion for thigh support as 
desired.
Adjusting the lumbar support
*
You can adjust the backrest's contour 
for additional support in the curvature 
of your spine's lumbar region. 
The upper hips and spinal column 
receive supplementary support to help 
you maintain a relaxed, upright sitting 
position. 
>Press the front/rear of switch: 
increase/decrease curvature 
>press the upper/lower end of the 
switch: increase the upper/lower 
curvature. 
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Seats Head restraintsAdjusting width of the backrest
*
Use the controls found along the sides 
of the seat to adjust the width for the 
backrest. This way you can set the 
sides of the seat so that they conform 
to your body contours.
Decreasing or increasing the width of 
the backrest: press the front/rear of 
switch. 
Adjustments Height: pull the head restraint up or 
push it down.
In order to move to the lowest 
positions, press button 1.<
To adjust the angle of the front head 
restraints, tilt the head restraint to the 
desired angle.
Adjust the head restraint so that 
its center is approximately at the 
height of your ears, as otherwise the 
risk of damage to the cervical vertebra 
in an accident is increased.<
Removal1. Pull the head restraint upward to the 
stop
2. Press button 1 and remove the head 
restraint.Installation Ð frontPress button 1 and insert the head 
restraint into the guides. Removal and installation Ð rearGive the head restraint a sharp upward 
tug to release it from its locking mecha-
nism. Press down forcefully to install. 
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Entering the rear Safety belts Unlocking backrestPull up on the lever and push the back-
rest toward the front. 
The outer levers hold the safety belt to 
enable it to be reached more easily.
Lock both backrests while driving, 
otherwise there is a danger of an 
unexpected movement causing an 
accident.<
Drive with your safety belt onAlways fasten your safety belt before 
starting off. As supplemental restraint 
devices, the airbags are designed to 
enhance the effectiveness of the safety 
belts, and not to replace them.To fastenMake sure you hear the catch engage in 
the belt buckle. To release1. Press red button in the belt buckle
2. Hold the belt
3. Guide belt back into the inertia reel.
In the rear, the belt buckle with 
the word "CENTER" is provided 
exclusively for the passenger sitting in 
the middle.<
Safety belt height adjustmentUse the height adjustment mechanism 
to adapt the safety belt to the ideal 
position for your own body:
1. Press the button
2. Slide the entire assembly up or 
down.
Also observe the instructions on 
adjusting the seats on page 42. 
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Safety belts Seat and mirror memory
If the safety belt system has been 
subjected to the stresses involved 
in an accident or otherwise damaged: 
Have the entire safety belt mechanism 
replaced by your BMW center, 
including the safety belt tensioner. In 
addition, have your BMW center 
inspect the safety belt anchors. If a 
child-restraint system was in the 
vehicle during an accident, consult the 
manufacturer's instructions regarding 
replacement.<
You can store and call up three different 
driver's seat and exterior mirror posi-
tions.
Memory will not retain the adjust-
ments made to the lumbar 
supports or the width of the back-
rests.<To store1. Ignition key in position 1 or 2
2. Adjust your seat and outside mirrors 
to the desired position
3. Press the 
MEMORY button: the indi-
cator lamp in the button lights up
4. Press memory button 1, 2 or 3, as 
desired. The indicator lamp goes out.
To select a stored settingDriver's door open after unlocking or 
ignition key in position 1:
>Briefly press memory button 1, 2 or 3, 
as desired.
Movement stops immediately when 
one of the seat adjustment or 
memory buttons is activated during 
the adjustment process.
With the driver's door closed and the 
ignition key either removed or in posi-
tion 0 or 2:
>Maintain pressure on the desired 
memory button (1, 2 or 3) until the 
adjustment process is completed.
If you press the 
MEMORY button 
accidentally: press the button 
again; the indicator lamp goes out.<
Do not select a memory position 
while the vehicle is moving. If you 
do so, there is a risk of accident from 
unexpected seat movement.< 
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Seat and mirror memory Seat heating
*
Steering wheel
Your BMW center can adjust your 
vehicle's systems in such a 
manner that your personalized settings 
are automatically set for the seat and 
exterior mirror positions when you 
unlock the vehicle with your personal 
remote control.<
Before activating the programmed 
adjustment feature ensure that the 
footwell behind the driver's seat is 
empty and unobstructed. If you fail to 
do so, any persons or objects behind 
the seat could be injured or damaged 
by a rearward movement of the seat.<
The seat cushion and backrest can be 
heated when the ignition key is in posi-
tion 2.
You can call up different heating levels 
by repeatedly pressing the button.
You can also switch the higher heating 
modes off directly:
Press the button and hold it slightly 
longer.
Adjustments1. Push the locking lever downward
2. Adjust the steering wheel (forward/
back and up/down) to suit your 
sitting position
3. Pull the lever back in to clamp the 
steering wheel in the new position.
Do not adjust the steering wheel 
while the vehicle is moving, other-
wise there is a risk of an accident from 
unexpected movement.< 
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Mirrors Adjusting outside mirrors1 Switch for 4-way adjustment
2 Select or switch for changing 
between mirrorsAdjusting manuallyThe mirrors can also be adjusted manu-
ally: press the edges of the lens.
To store the mirror settings, refer to 
"Seat and mirror memory" on page 46.
Convex mirror
The passenger-side mirror 
features a convex lens. When esti-
mating the distance between yourself 
and other traffic, bear in mind that the 
objects reflected in the mirror are closer 
than they appear. This means that esti-
mations of the distance to following 
traffic should not be regarded as 
precise.< 
Self-defrosting mirrorsBoth mirrors are heated automatically in 
ignition key position 2.
Passenger-side exterior mirror tilt 
function(automatic curb monitor)
>Move the mirror selector switch 1 to 
the "driver's mirror" position
>When the selector lever is placed in 
"Reverse," the passenger-side mirror 
tilts downward This brings e. g. the 
lower area adjacent to the vehicle 
(curbs, etc.) into the driver's field of 
vision while parking.
You can deactivate this automatic 
feature by setting the mirror selector 
switch to the "passenger-side" posi-
tion. 
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Mirrors Airbags Interior rearview mirror with 
automatic dimming featureThis mirror automatically dims through 
an infinitely variable range and switches 
automatically to its clear, undimmed 
mode whenever you engage reverse 
gear. 
There are two photocells for automatic 
dimming. One photocell (arrow) is posi-
tioned in the mirror's frame, while the 
other is slightly offset on the opposite 
side of the mirror.
For the mirror to function perfectly, 
keep the photocells clean and the area 
between the inside rearview mirror and 
the windshield free of any obstruction, 
like stickers, etc. 
1 Front airbags on the driver and 
passenger sides
2 Side Impact Head Protection System 
on the driver and passenger sides 
(front)
3 Side airbags on the driver and 
passenger sides (front and rear
*)
Protective effectThe front airbags protect the driver and 
passenger in the event of a frontal 
impact where the protection provided 
by the safety belt alone would not be 
adequate. The Side impact Head 
Protection System and the side airbags 
help provide protection in the event of a 
collision from the side. Each of the side 
airbags is designed to help support the 
seat occupant's upper body.  
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Airbags
The side airbags in the rear 
passenger area
* of your vehicle 
may already have been deactivated 
either at the time of manufacture or by a 
BMW center. You may have them acti-
vated if you desire to do so. Please 
contact your BMW center for additional 
information.<
For information on the correct sitting 
position, refer to page 42.
The airbags will not be triggered in 
the event of a minor accident, a 
vehicle rollover, or collisions from the 
rear.<
Do not apply adhesive materials to 
the cover panels of the airbags, 
cover them or modify them in any other 
way. Do not attempt to remove the 
airbag restraint system from the 
vehicle. In the event of a malfunction, 
deactivation, or triggered actuation (as 
a response to an accident) of the airbag 
restraint system, consult your BMW 
center for checking, repairs or removal. 
Modifications may not be made on 
either the wiring or the individual 
components in the airbag system. 
These include the padded steering 
wheel hub, the instrument panel, the 
side trim panels of the front or rear 
doors and the roof pillars or the sides of 
the headliner. Do not attempt to remove 
or dismantle the steering wheel. To 
ensure compliance with official safety 
regulations, entrust disposal of airbag 
generators to a BMW center. Unprofes-
sional attempts to service the system 
could lead to failure in an emergency or 
undesired airbag activation, either of 
which could result in personal injury. Do 
not touch the individual components 
directly after the system has been trig-
gered, as otherwise there is a danger of 
burns.<
At all times, occupants should sit 
upright and be properly restrained 
(infants and small children in appro-
priate child-restraint systems; larger 
children and adults using the safety 
belts). Never let an occupant's head 
rest near or on a side airbag because 
the inflating airbag could cause a 
serious or fatal injury. Please note that 
the word "Airbag" imprinted on the door 
trim panel indicates the airbag's loca-
tion. 
Accident research shows that the 
safest place for children in an automo-
bile is in the rear seat. However, a child 
sitting in the rear seat and not properly 
restrained may place his or her head on 
or near the side airbag, if so equipped. 
For example, a child Ð even though 
belted Ð may fall asleep with his or her 
head against the side airbag. It may be 
difficult for a driver to ensure that chil-
dren in the rear seat will remain prop-
erly positioned at all times and not 
place their heads on or near the side 
airbag. Therefore, we recommend that 
the rear seat side airbags, if provided, 
be deactivated if you plan to transport 
children in the rear seat.