heating AUDI Q2 2021 Owner´s Manual

Heating and cooling

%
Blower
You can adjust the blower speed manually using
the control
%.
You should leave the blower on at
a low setting to prevent the windows from mist­
ing up and to ensure that the vehicle interior is
constantly ventilated. Press the AUTO button for
automatic control of the blower speed.

%£/
%8/
'J Air distribution and air outlets
The buttons can be used to adjust the air distri­

bution.
Press the AUTO button for automatic air
distribution.
The round air outlets in the dashboard can be ad­
justed
^>page
71.
To prevent the front side windows from misting
up in wet weather, it's a good idea to open the
side air outlets and point them to the side.

Foot-Level
air outlets are provided underneath
the front seats to heat the rear cabin.

1
Defroster
The windscreen and side windows are defrosted
or demisted as quickly as possible. The air output
is increased to maximum and most of the air
comes out of the outlets below the windscreen.
The air recirculation mode is deactivated. The
temperature should be set to 22 °C or higher.
The temperature is regulated automatically. At
setting
$&
the A/C cooling mode is automatically
activated depending on the ambient tempera­

ture.

The defroster is switched off when the AUTO but­
ton is pressed.

<^>
Air recirculation mode
The air recirculation mode can be switched on
manually or automatically*.
- To switch the manual air recirculation mode
on/off, press the
<s>
button.
-The automatic* air recirculation function must
be activated on the infotainment system. Se­
lect the following on the infotainment system:

|MENU|
button > Car > left control button > A/C
> Auto recirculation. The air quality sensor,
which is designed for the detection of diesel
and petrol exhaust fumes, automatically
switches the air recirculation mode on or off
depending on the
level
of pollution in the out­
side air.
In air recirculation mode, the air from the interi­
or of the vehicle is filtered and recirculated. This
setting prevents fumes etc. from entering the in­
terior. We recommend switching on the air recir­
culation mode when driving through a tunnel or
in traffic queues
•=>
A-
The air recirculation mode is switched off when
the
<^>
or AUTO or
M.
button is pressed.
If the engine is
cold,
the air conditioner will auto­
matically switch to air recirculation mode when
the vehicle is reversing.

$tr
Rear window heating
If the rear window heating is activated with the
ignition switched on, the battery management
determines whether or not the battery charge
level is sufficient for the rear window heating to
be switched on. Otherwise the rear window heat­
ing operates when the engine is running, and
switches off automatically after about
10 - 20 minutes, depending on the outside
tem­

perature.
To switch on the rear window heating perma­
nently, press and hold the
S
button for at least
2 seconds. This setting will be stored for approxi­
mately 15 minutes after the ignition is switched

off.

^
Seat heating*
When you press the
«r
button, the seat heating is
switched on at level 3 (the highest level). The
LEDs indicate the temperature level. To reduce
the temperature, press the button again. To
switch off the seat heating, press the button re­
peatedly until all the LEDs have gone out.
The seat heating automatically switches from
level 3 to level 2 after about 10 minutes.
A WARNING
For reasons of safety you should not leave
the air recirculation switched on for too

long.
This mode prevents fresh air from en­
tering the vehicle, so the windows can mist
70

Heating and cooling
over if the air cooling is switched off. Bad
visibility can cause an accident.
- People with limited capacity to feel pain or
sense temperature could burn themselves
when using the seat heating. These people
must not use the seat heating - risk of in­
jury!
© CAUTION
To avoid damaging the heating elements of
the seat heating, please do not kneel on the
seat or apply sharp pressure at a single point.
© Note
- The setting for the driver's seat heating is
assigned to the key in use.
- If the front passenger's seat heating was on
when you last switched off the ignition, it
will be switched on automatically only if the
ignition is switched on again within 10 mi­

nutes.

Adjusting air outlets

Fig.
67 Dashboard: Adjusting air outlet

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The following settings are possible
OFig.
67:
- ® Air flow intensity
-@
Air
flow direction
To adjust the air flow intensity, turn the ribbed
outer adjustment ring®
oFig.
67. To shut off
the air flow, turn the adjustment ring all the way
to the right.
To adjust the air flow direction, move the inside
grille @ in the air outlet.
71

Driving
instance when you can see that the next traffic
lights are red. This takes advantage of the engine
braking effect, reducing wear on the brakes and

tyres.
Emissions and fuel consumption will drop
to zero due to the overrun fuel cut-off.
Change gear early to save fuel
An effective way of saving fuel is to change up
quickly through the gears. Running the engine at
high rpm in the lower gears uses an unnecessary
amount of
fuel.

Applies to: vehicles with manual gearbox
Shift up to second gear as soon as possible. If
possible, we recommend shifting up to the next
gear at approx. 2,000 rpm.
Applies to: vehicles with automatic gearbox
Press the accelerator slowly and avoid using the

"kick-down"
feature.
Avoid driving at high speed
Avoid travelling at top speed. Fuel consumption,
exhaust emissions and noise Levels all increase
very rapidly at higher speeds. Driving at moder­
ate speeds will help to save
fuel.

Do not let the engine idle for longer than
necessary
Engine idling periods are automatically reduced
on vehicles with start/stop system*. On vehicles
without a start/stop system, it is worthwhile
switching off the engine at level crossings, for in­
stance, or at traffic lights with a long red phase.
The fuel saved after about 5 seconds can be
greater than the amount of fuel needed to re­
start a warm engine (the exact fuel saving de­
pends on the engine version).
The engine takes a very long time to warm up
when it is running at idling speed. Mechanical
wear and pollutant emissions are also especially
high during this initial warm-up phase. It is
therefore best to drive off immediately after
starting the engine. Avoid running the engine at
high speed.

o
Regular servicing
Regular servicing can establish a basis for good

iS
fuel economy before you start driving. A
well-

serviced engine gives you the benefit of im­
proved fuel efficiency as well as maximum relia­
bility and an enhanced resale value. A poorly
maintained engine can consume up to ten per­
cent more fuel than necessary.
Avoid short trips
The engine and emission control system need to
reach their proper working temperature in order
to minimise fuel consumption and emissions.
A cold engine uses disproportionately more
fuel.

The engine only reaches its working temperature
after about four kilometres, when fuel consump­
tion will return to a normal level.
Check tyre pressures
Always make sure the tyres are inflated to the
correct pressures
•=>page
306 to save
fuel.
If the
tyre pressures
are
just 0.5
bar
too Low, this can
increase the fuel consumption by as much as 5
%. Due to the greater rolling resistance, under-
inflation also increases tyre wear and impairs

handling.

Do not use winter tyres all through the year; they
will increase fuel consumption by up to 10 %.
Avoid carrying unnecessary loads
Every kilo of extra weight will increase the fuel
consumption, so it is worth checking the Luggage
compartment occasionally to make sure that no
unnecessary loads are being transported.
The roof carrier increases the air resistance of the
vehicle and should be removed when not in use.
This will save about 12 % of fuel at speeds of be­
tween 60 and 75
mph.

Save electrical energy
The engine drives the alternator to generate elec­
tricity. This means that fuel consumption rises
when more power is required for electrical equip­
ment. Switch off electrical equipment when it is
not needed. Electrical equipment which uses a
lot of electricity includes the blower (at a high
setting), the rear window heating and the seat

heating*.

73

Driving
Steering
Adjusting the steering wheel position
The height and reach of the steering wheel can
be adjusted as required to suit the
driver.

Fig.
68 Steering column: Lever for steering column adjust­
ment

•
Push the Lever
^>Fig.
68 down
<=> /\.
•
Move the steering wheel to the desired
posi­

tion.

•
Then push the lever towards the steering
col­

umn until the catch engages.
WARNING
- Never adjust the position of the steering
wheel when the vehicle is moving - this
could cause an accident.
- Press the lever upwards so it is secure and
so that the position of the steering wheel
cannot shift unexpectedly while the vehicle
is moving - risk of accident!
Starting and stopping
the engine (vehicles with
ignition Lock)
Starting the engine
Applies to: vehicles with ignition lock
Insert the key in the ignition lock to switch on
the ignition and start the engine.

Fig.
69 Ignition lock: Ignition key positions
Switching the ignition on/off

•
To switch on the ignition, turn the ignition key
to position ®. Vehicles without start/stop sys­

tem*:
The rev counter needle will move to the
READY position.
• To switch off the ignition, turn the ignition key
to position ©. The rev counter needle will
move to the OFF position.
Diesel engines are automatically preheated when
you switch on the ignition.
Starting the engine

•
Manual gearbox: Press the clutch pedal all the
way down and move the gear lever into neutral.

•
Automatic gearbox: Press the brake pedal and
move the selector lever to position P or N.

•
Turn the ignition key briefly to position @. The
ignition key automatically returns to position
®. Do not press the accelerator.
Applies to: vehicles with diesel engine

•
The engine may take a few seconds Longer than
usual to start on cold days. Please keep your
foot on the clutch pedal (manual gearbox) or
brake pedal (automatic gearbox) until the en­
gine starts. The indicator Lamp
E g
lights up
while the glow plugs are preheating.
74

Driving
©
y
Note
After the engine is stopped, the radiator fan
may remain on or turn itself back on for up to
10 minutes, even if the ignition is switched
off. This may occur for the following reasons:
- Residual heat has raised the coolant
tem­

perature.
- Direct sunlight has additionally heated up
the engine compartment while the engine is

warm.

- Applies to vehicles with diesel particulate
filter: The emission control system is hot
because of the regeneration process, even
though the engine has
not
yet reached oper­
ating temperature.
Starting and stopping
the engine (vehicles with
convenience key)
Starting the engine
Applies to: vehicles with convenience key
You can use the ISTART ENGINE STOP| button to
switch on the ignition and start the engine.

Fig.
70 Centre console: START ENGINE STOP button
Starting the engine

•
Manual gearbox: Press the clutch pedal all the
way down and move the gear lever into neutral.

•
Automatic gearbox: Press the brake pedal and
move the selector lever to position P or N.

•
Press the ISTART ENGINE
STOP!
button briefly
to start the engine.
Applies to: vehicles with diesel engine

•
The engine may take a few seconds longer than
usual to start on cold days. Please keep your
foot on the clutch pedal (manual gearbox) or
brake pedal (automatic gearbox) until the en­
gine starts. The indicator Lamp
E 3
lights up
while the glow plugs are preheating.
Electrical components with a high power
con­

sumption are switched off temporarily while you
start the engine.
If the engine fails to start immediately, switch
off the starter by pressing the
ISTART
ENGINE
STOPI
button once more and try
again after about 30 seconds.
Switching the ignition on/off
If you only wish to switch on the ignition and do
not want to start the engine as
well,
proceed as
follows:

•
Press the ISTART ENGINE STOP| button with­
out pressing the clutch (manual gearbox) or
brake pedal (automatic gearbox). Vehicles
without start/stop system*: The rev counter
needle will move to the READY position.

•
To switch off the ignition, press the button

again.
The rev counter needle will move to the
OFF position.
Diesel engines are automatically preheated when
you switch on the ignition.
If the indicator lamp
£21
flashes and the message
Please move steering wheel appears when you
switch on the ignition, the steering wheel is

locked.
In this case, turn the steering wheel
slightly
to
the left/right.
Start/stop system*
Please note the information on
<^>page
79,
Start/stop system.
WARNING
Never run the engine in confined spaces. The
exhaust gases are toxic - risk of poisoning!
© CAUTION
Avoid high engine speeds, full throttle and ex­
treme load conditions until the engine has
reached its normal operating temperature;
otherwise this can damage the engine. •
76

Driving

•
Briefly pull the selector lever back from
posi­

tion D/S to select position S, or move the selec­
tor lever to the right into the tiptronic gate, or
select dynamic mode in drive select*

^>page
131.

•
Press the brake pedal firmly with your
left
foot
and hold it down for at Least one second.

•
At the same time, press the accelerator all the
way down with your right foot until the engine
revs are high and steady.
• Take your
left
foot
off
the brake.
A WARNING
- Always adapt your driving style to the traffic
conditions.
- Only use the launch control programme
when road and traffic conditions permit,
and make
sure
your manner of driving and
accelerating the vehicle does not inconven­
ience or endanger other road users.
- Please note that the driven wheels may
start to spin when the off-road mode is
switched on, causing the vehicle to Lose

grip,
in particular on slippery or wet roads -
danger of skidding!
- When acceleration has been completed, you
should deactivate the off-road mode again
by briefly pressing the
|flQFF|
button.
© Note
- The gearbox may be hot after you have used
the launch control programme. In this case,
the programme may not be available for
several minutes. The programme will be
available again after
a
cool-down period.
-Accelerating with the launch control pro­
gramme places a heavy load on all parts of
the vehicLe. This can result in increased wear
and tear.
Gearbox malfunction
Applies to: vehicles with automatic gearbox
| Gearbox malfunction! Please stop the vehi­
cle and select P
There is a malfunction in the gearbox. Park the
vehicle safely and do not drive on. Obtain profes­
sional assistance.
| Gearbox overheating! Please stop the vehi­

cle.

The gearbox is overheating and could be dam­

aged.
Stop the vehicle and let the gearbox cool
down with the engine idling and the selector lev­
er in position P. If the warning lamp and the
message disappear, drive to a qualified workshop
soon and have the fault rectified. Do not drive on
if the warning lamp stays on and the message
does not disappear. Obtain professional assis­

tance.

E3
Gearbox malfunction: you can continue driv­
ing
Drive to a qualified workshop soon and have the
fault rectified.

S3
Gearbox malfunction: no reverse gear (you
can continue driving)
A gearbox malfunction has occurred. The gearbox
will switch to the back-up programme. The pro­
gramme will only move into certain gears or may
not be able to shift gears at all. The engine may

stall.
You can no longer engage reverse gear.
Drive to a qualified workshop without delay and
have the fault rectified.

jftj
Gearbox malfunction: you can continue driv­
ing in D until engine off
Park your vehicle well away from moving traffic.
Obtain professional assistance.

ty
Gearbox overheating: please adapt driving
style
You can continue driving at moderate speed. You
can resume normal driving if the indicator lamp
goes out.

LQ]
Gearbox: please press brake pedal and select
gear again
If
a
gearbox malfunction has occurred due to
overheating, this message will appear once the
gearbox has cooled down again.
92

Towing
a
trailer

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o < 00
have friction linings at the sides to prevent exces­
sive wear. Degrease and clean the ball joint be­
fore using a stabiLiser. The stabiliser can be pur­
chased and installed
at
a qualified workshop.
Electronic stabilisation control
The
ESC
-
in particular in conjunction with the
trailer stabilisation system
o^page
97 - makes
it

easier to stabilise a trailer
if it
starts to skid
or

sway. You should therefore keep the
ESC
switch­
ed on
at
all times.
Overheating
In hot weather, keep an eye on the coolant
tem­

perature gauge
^page
13. When climbing long
hills with the engine running fast in low gear, the
coolant temperature can increase. Reduce speed
immediately
if
the needle moves to the right end
of the scale. For information on the warning
lamp
||
refer to
opage
30.

Rear carrier systems
When using rear carrier systems (e.g. bicycle
racks) on the towing bracket,
it
is important not
to exceed the maximum load.
The total weight
of
the rear carrier system and
its

load must not exceed
75
kg for this vehicle. How­
ever,
it
is also important to observe the maxi­
mum permissible load for the rear carrier sys­

tem.

The greater the distance from the towing brack­
et, the smaller the maximum permissible Load
on

the rear carrier system. For this reason, you
should secure heavy objects as near as possible
to the towing bracket.
Note the instructions provided by the manufac­
turer of the rear carrier system.
Please make sure that the rear carrier system
is

approved for use on your vehicle.

l
Note
A WARNING
The use of an unsuitable rear carrier system
could cause severe damage
to
the towing
bracket. The towing bracket could then break
and cause an accident.
Degrease and clean the ball joint before using
a rear carrier system.

Removable towing
bracket

Introduction
Applies to: vehicles with removable towing bracket
Special care is required when fitting and remov­
ing the towing bracket.

Fig.
84 Luggage compartment:
Ball
joint for towing brack­
et (stowage example)
The removable ball joint attachment for the tow­
ing bracket is stored under the floor panel or in a
separate bag on the floor of the luggage com­
partment.
The ball joint can be fitted and removed by hand.
WARNING
Never use tools of any kind when fitting and
removing the ball joint. This could damage
the mechanism which locks the
ball
joint
in

place and impair its safety
-
risk of accident!
© Note
- Do not attempt to modify or repair the ball
joint or other towing bracket components.
- Should you have any difficulties when using
the towing bracket, or suspect that
it
is not
fitted properly, contact
a
qualified work­

shop.

- Before setting off, always check that the

ball
joint is secured properly
Opage
101.
99

Intelligent technology

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Intelligent technology
Electronic stabilisation
control (ESC)
Description
The electronic stabilisation control (ESC) increa­
ses the car's stability. It reduces the tendency to
skid and improves the stability and roadholding
of the vehicle. The ESC detects critical handling
situations, such as understeer, oversteer and

wheelspin
on the driven wheels. It stabilises the
vehicle by braking individual wheels or by reduc­
ing the engine torque. The indicator
lamp^
in
the instrument cluster starts flashing as soon as
the ESC intervenes.
The following systems are integrated in the ESC:
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up under
braking until the vehicle has reached a virtual

standstill.
You can continue to steer the vehicle
even when the brakes are on
full.
Keep your foot
on the brake pedal and do not pump the brakes.
You will feel the brake pedal puLsate while the
anti-lock brake system is working.
Brake assist system
The brake assist system can shorten the braking
distance. The braking force is automatically boos­
ted if
you
press the brake pedal quickly in an
emergency. You must keep pressing the brake
pedal until the danger has passed. On
vehides

with adaptive cruise control*, the response of the
brake assist system will be more sensitive if you
are too close to the vehicLe in front.
Traction control system (ASR)
In the event of
wheelspin,
the traction control
system reduces the engine torque to match the
amount of grip available. This helps the car to
start moving, accelerate or climb a gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes the
spinning wheel and directs the power to the
oth­

er driven wheel (or wheels on quattro* versions).
This function is not available at high speeds.
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automatically
if subjected to excessive loads. The vehicLe can
still be driven. The EDL will switch on again auto­
matically when the brake has cooled down.
Steering recommendation
The ESC helps to stabilise the vehicle by changing
the steering wheel torque.
Trailer stabilisation system
Applies to: vehicles with trailer stabilisation system
Trailers have a tendency to sway. If the
ESC
de­
tects that the trailer is swaying and this is affect­
ing the towing vehicLe, it will automatically brake
the vehicle in order to stabilise the trailer

^>page
97.
Selective wheel torque control
Selective wheel torque control intervenes when
cornering by braking the wheel(s) on the inside of
the bend individually as required. This enables
precision cornering.
Multicollision brake assist system
The "multicollision brake assist system" can help
to reduce the risk of skidding and further
colli­

sions during an accident. If the airbag control
unit detects that
a
collision has taken place up­
wards of
a
certain speed, the vehicle is braked by
the
ESC.

The vehicle will not be braked automatically if:
- the driver presses the accelerator,
- or the
ESC,
the brake system or the vehicle's
electrical system are not fully functional.
WARNING
- The grip provided by the ESC and the inte­
grated systems is still subject to the physi­
cal limits of adhesion. Always bear this in

mind,
especially on wet or sLippery roads. If
you notice the systems cutting in, you
should reduce your speed immediately to
suit the road and traffic conditions. Do not

let
the extra safety provided tempt you into
taking any risks when driving - this can
cause accidents.
145

Intelligent technology
Dynamic power management
While the vehicle is moving, this function distrib­
utes the available power to the various electrical
components and systems according to their re­
quirements. It ensures that on-board systems do
not consume more electrical power than is being

generated,
and thus maintains the maximum
possible vehicle battery power level.
® Note
- The power management system is not able
to overcome the given physical limits.
Please remember that the power and life of
the vehicle battery are limited.
- If the indicator lamp
|3 ^page
31 appears,
the starting ability may be impaired.
Starting ability has first priority.
Short trips, city traffic and low temperatures all
place a heavy load on the vehicLe battery. In
these conditions a large amount of power is
con­

sumed,
but only
a
small amount is supplied. The
situation is also critical if electrical equipment is
in use when the engine is not running. In this
case power is consumed when none is being
gen­

erated.

In these situations you will be aware that the
power management system is intervening to
con­

trol the distribution of electrical power.
When the vehicle is parked for long periods
If
you
do not drive your vehicle for a period of
several days or weeks, the power management
will gradually shut off the on-board systems one
by one, or reduce the amount of current they are

using.
This limits the amount of power consumed
and helps to ensure reliable starting even after a
long period. Certain convenience features, such
as remote controL unlocking, may not be availa­

ble.
These functions will be restored when you
switch on the ignition and start the engine.
150
With the engine switched off
If
you
listen to the radio or use the other info­
tainment functions when the engine is not
run­

ning,
this will discharge the vehicle battery.
The infotainment display will show a warning
message before the battery power drops to a Lev­
el where the starting ability is impaired. This
message warns you that the system you are using
will soon be switched off automatically. You
should therefore start the engine if
you
wish to
continue using the system.
When the engine is running
Although the alternator generates electrical
power, the vehicle battery can still become dis­
charged while the vehicle is being driven. This can
occur when a lot of power is being consumed but
only
a
small amount supplied, especially if the
vehicle battery is not fully charged initially.
To restore the necessary energy balance, the sys­
tem
will
then temporarily shut off the electrical
components that are using a lot of power, or re­
duce the current they are consuming. Heating
systems in particular use a Large amount of elec­
trical power. If
you
notice, for instance, that the
seat heating* or the rear window heater is not

working,
they may have been temporarily switch­
ed off or regulated to a lower heat output. These
systems will be available again as soon as
suffi­

cient electrical power is available.
You may also notice that the engine runs at a
slightly faster idling speed. This is quite normal,
and no cause for concern. The increased idling
speed allows the alternator to meet the greater
power requirement and charge the vehicLe bat­
tery at the same time.
Information saved in the
control units
The vehicle is fitted in the factory with electronic
control units that, among other things, control
the engine and the gearbox. The controL units al­
so monitor the exhaust system and the airbags.
The control units continually analyse data rele­
vant to the vehicLe while you are driving. In the •

Safe driving

•
Distribute the load evenly in the luggage com­
partment.

•
Place heavy items as far forward as possible in
the luggage compartment and secure them
properly
<^>Fig.
214.

•
Secure the load with the stretch net* or with
non-elastic straps secured to the fastening
rings
^>page
62.
© CAUTION
A WARNING
- Loose items in the luggage compartment
are a safety hazard: they can move suddenly
and impair the handling of the vehicLe as a
result of the change in weight distribution.
- In an accident or a sudden manoeuvre, loose
objects in the passenger compartment can
be flung forward - risk of injury! Always
stow objects safely in the luggage compart­
ment and secure them on the fastening

rings.
Use suitable securing straps, particu­
larly when transporting heavy objects.
- Transporting heavy objects may affect the
vehicle's handling by shifting the centre of
gravity - this could cause an accident. Take
extra care when driving and adjust your
speed accordingly.
- Never exceed the maximum axle loads or
the maximum gross weight for the vehicLe

^>page
342. Exceeding the permitted axle
loads or gross weight Limit can affect the ve­
hicle's handling characteristics, and increase
the risk of accidents, personal injuries or
damage to the vehicle.
- Never leave your vehicLe unattended when
the boot lid is open. Children could climb in­
to the boot and close the boot lid from the

inside.
In this case the child would be un­
able to get out of the vehicle without help.
This could have fatal consequences.
- Never allow children to play in or around the
vehicle. Always close and lock the boot lid
and all the doors when you leave the
vehi­

cle.

- Never let passengers ride in the luggage
compartment. All occupants must be prop­
erly restrained by the seat belts at all times

•=>
page
27'5.

Make sure that no hard objects chafe against
the wires of the heating element in the rear
window and damage them.
©
Note

- The tyre pressure must be adjusted accord­
ing to the load the vehicle is carrying

<^>page
307.
- Air circulation in the vehicle helps reduce
fogging of the windows. Used air escapes
through ventilation slots in the rear of the
vehicle. Make sure that these ventilation
slots are not obstructed.
- Suitable belts for securing loads to the fas­
tening rings* are commercially available.
Fastening rings
Unsecured loads are a hazard to all vehicle occu­
pants.
There are fastening rings in the luggage com­
partment which can be used to secure luggage
and other objects
^>page
62.

•
Use the fastening rings to secure items safely
in the luggage compartment
<=> A.

During a collision or an accident, even small and
light objects can possess so much energy that
they can cause very severe injuries. The amount
of this "kinetic energy" depends on the speed of
the vehicLe and the weight of the object. The
most significant factor, however, is the speed of
the vehicLe.
For example: an object weighing 4.5 kg is lying
unsecured in the vehicle. During a frontal
colli­

sion at a speed of 50 km/h, this object generates
a force corresponding to 20 times its weight.
That means that the effective weight of the ob­
ject increases to about 90 kg. You can imagine
the severity of the injuries which might be sus­
tained if this "projectile" strikes an occupant as it
flies through the passenger compartment. •
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