light AUDI Q7 2012 Owner´s Manual

32 Driver information display
warning goes out after about 5 seconds, but it
can be brought up at any time by pressing the
I CHECK ! button again.
Usually , you can still drive to the next dealer­
ship. Turn off all but the most necessary elec­
trica l consumers, since these drain the vehi­
cle's battery.
(D Note
If the . warning symbol (coolant system
malfunction) also lights up on the instru­
ment panel during the trip
¢ page 32,
then you have to stop immediately and
turn off the engine. The coolant pump is
not working anymore -danger of damage
to the engine!
BRAKE/( ©) Brake system malfunction
A malfunction in the brake system must be
repaired as soon as possible .
If the warning/indicator light-(USA
models)/ . (Canada models) in the instru­
ment cluster flashes, there is a brake system
malfunction. By pressing the
I CHECK ! button,
you can bring up a driver message which ex­
plains the malfunction in more detail.
Stop vehicle and check brake fluid level
> Pull off the road .
> Stop the vehicle.
> Turn off the engine.
> Check the brake fluid level¢ page 268 .
> Contact your nearest authorized Audi dealer
or qualified workshop if necessary.
Warning! Fault in brake system. Contact
workshop
> Drive carefully to the nearest authorized
Audi dealer or qualified workshop and have
the malfunction corrected ¢
&_.
If the ABS system malfunctions, the ABS
warning/indicator light illuminates together
with the brake system malfunction warning/ indicator light¢&. .
A WARNING
-Always observe the warnings in
¢ page 248, Engine compartment, be­
fore opening the hood and checking the brake fluid .
- Driving with low brake fluid is a safety
hazard . Stop the car and get professional
assistance .
-USA models: If the - warning light
and the
B warning light come on to­
gether, the rear wheels could lock up
first under hard braking. Rear wheel lock­
up can cause loss of vehicle control and
an accident. Have your vehicle repaired
immediately by your authorized Audi
dealer or a qualified workshop. Drive
slowly and avoid sudden, hard brake ap­
plications.
- Canada models: If the brake warning
light . and the ABS warning light
II]
come on together, the rear wheels could
lock up first under hard braking . Rear
wheel lock-up can cause loss of vehicle
control and an accident . Have your vehi­
cle repaired immediately by your author­
ized Audi dealer or a qualified workshop .
Drive slowly and avoid sudden, hard
brake applications.
- L Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible.
When the. symbol in the display blinks,
then either the engine coolant
temperature is
too high, or the coolant
level is too low. An
additional driver message can also be dis­
played by pressing the
I CHECK! button:
Switch off engine and check coolant level
> Pull off the road.
> Stop the vehicle .
> Turn off the engine.
> Check coolant level¢ page 266 .
> Add coolant if necessary¢ page 267.
> Continue driving only after the engine cool-
ant warning/indicator light goes out.
1J>

~ Contact your authorized Audi dea ler fo r as -
sistance if necessary.
If the engine coolant level is co rrect, then the
radiato r fan may be the cause of the malfunc­
tion.
If the . warning symbo l (alternator mal­
f u nction) a lso l ights up on the instr ument
panel ¢
page 31, then the fan belt may be
damaged .
A WARNING
- If your vehicle should break down for
mechanica l or other reasons, park at a
safe distance from moving traffic, turn off the engine and turn on the hazard
warning lights¢
page 60, Emergency
flasher.
-
- Never open the hood if you see or hear
steam o r coolant escap ing from the en­
gine compartment - you risk being scald­
ed. Wait until you can no longe r see or
hear steam or coo lant escaping.
- The e ngine compartment of any ve hicle
is a da ngerous a rea. Before you perform
any wor k in the engine compar tment,
t ur n o f the eng ine and allow it to cool.
Follow the warning stickers¢
page 248,
Engine compartment .
(D Note
Do not cont in ue d riving if the . symbol
illuminates. There is a malf unct ion in the
engine cooling system -you co uld damage
your eng ine.
9=:7-Engine oil pressure malfunction
The red engine oil pressure warning symbol
requires immediate service or repair. Driving
with a low-oil -pressure indication is likely to
inflict severe damage to the engine.
If the . symbo l appears in the disp lay and
b links, the oil press ure is too low . An addition ­
a l dr iver message can also be disp layed by
press ing the
I CH ECKi button:
Switch off engine! Oil p ressure too low
Dri ver information di spla y 33
Immediate act ions
~ Pull off the road.
~ Stop the vehicle.
~ T ur n off the engine .
~ Check the engine oil le vel with the dipstick
¢ page 263.
Dipstick readings check s too low
~ Top off oil to the proper level¢ page 264.
~ Make s ure that the oil pressure wa rning
symbo l. appears no longer in the display
before you start driving again.
Dipstick read ing checks OK
~ If the oil p ress ure warn ing symbol .
s t arts flashing aga in even though the en­
gine oil level checks OK on t he d ipstick,
do
not continue d riving and do not let the en­
gine run in idle .
Instead, contact your au­
thorized Audi dealer for assistance.
(D Tips
- The engine oil pressure symbol. is
not an indic ator for a low engine oil lev­
el. Do not rely on it . Instead, check the
oil level in your engine at regular inter­
vals, preferably each time you refuel,
and always before going on a long trip .
- The yellow oil lev el warn ing indication
1111 requires oil refill or workshop s erv­
ice without delay . Do not wait until th e
red oil pre ssure warning . start s to
flash before you r espond to the low oil
level warning
Ill . By then , your engine
may already have suffered serious dam­
age.
i Steering malfunction
If there is a malfunction in the electronic
steering column lock, the steering cannot be
unlocked .
If the I symbol i n the display blinks, there is
a malfunction in the electronic steering col­
u mn lock. An additional driver message can
a lso be displayed by pressing the
ICHECK I but-
ton:
~

34 Driver information display
Do not drive vehicle: steering defective
• Contact you r nearest authorized Audi dea le r
or qualified workshop.
• Do
not tow yo ur vehicle .
& WARNING
-
Your vehicle must not be towed in the
event of a malfunction in the electronic
steering column lock because it cannot be
steered due to the locked steering. If it is
towed w ith the steering locked, there is
the risk of an accident .
~ Ignition lock malfunction
A malfunction in the ignition lock must be re­
paired immediately.
If the . symbo l in the display blinks, there is
a ma lfunction in the electronic ignition lock.
An addit ional driver message ca n also be d is­
played by pressing the
! CHECK I button:
Ignition lock defective. Contact workshop !
• Do not turn the eng ine off.
• Drive immediately to an authorized Audi
dealer to have the ma lf u nction corrected.
If there is a ma lfunction in the e lectronic igni ­
tion lock, the ignition cannot be turned off.
Drive immediately to an authorized Audi dea l­
er to have the cause of the ma lfunction cor­
rected.
On vehicles with Convenience key*, the engine
should not be switched off using the
! STOP !
button beca use the engine ca nnot be sta rted
again after the ignition is switched off.
' Yellow symbols
A yellow symbol means WARNING.
Fig . 26 Display: low fuel level warning (priority 2)
Yellow symbo ls indicate a priority 2 malfunc­
t ion - Warning!
When a yellow war ning symbol appears,
one
warning tone sounds . A driver message ap­
pears as well to explain the malfunction in
more de tail. The driver warning goes out after
about 5 seconds, but it can be brought up
again at any time by pressing the
! CHECK I but­
ton .
Check the displayed function as soon as possi­
ble. If
more than one priority 2 ma lf u nction is
detected, all symbols will appear one after
the other for about 2 seconds .
Yellow symbols mean:
"
Convenience key"
Key not in vehicle
c> page 108
•
USA models: Defective
brake light
c>pa ge 23
[fl
Canada models: Defective
brake light
c> page 23
~:)
Defective light bulb
c>page 23
raa
light/rain sensor defective
c> page35
~
Windshield washer fluid Lev-
el low
c>page3 5 1 ...

II
Low fuel level
¢page 35
fi.fl1::jfl1-j Kefill Ad Blue*
¢page255
-Ad Blue,/'
•
•
•
••NI@
AdBlue ma lfunction*
¢poge255
Battery voltage
¢poge36
Worn brake pads
¢poge36
Dy namic headlight range
control defective
¢poge36
Check eng ine oil level
¢poge36
Engine oil sensor malfunc­
tion
¢poge36
Engine speed limitat ion*
¢poge36
Diesel particulate filter *
clogged
¢poge37
A dapt ive lig ht* defec tive
¢poge37
-Ignition lock malfunction
¢poge37
W indshield wiper defective
¢poge37
Tire pressure monitoring
sys tem
Loss of air pressure
¢poge293
T ire pressure monitoring
system
System not availab le
¢poge293
Dri ver information di spla y 35
Battery in remote control
key
¢poge39
A utomat ic transm iss ion
malfunction
¢ page 141
...?c, Key not in vehicle
Applies to vehicles: with Convenience key
!!I Key not in vehicle
This reminder appears along with the !!I sym ­
bol if the master key is removed from the
ve­
hicle with the engine runn ing. It is intended
to rem ind you (e .g. whe n cha ng ing dr ive rs)
not to cont inue the journey without the mas­
te r k ey.
If the master key is no longer in the ve hicle ,
you cannot swi tch off t he ig nit io n after stop­
ping the engine an d you also cannot start the
engine aga in. What is mo re, you cannot lo ck
t he ve hicl e from the o utsi de.
@. D Light/rain sensor defective
fll Automatic headlights/ automatic wipers
defective
If t he symbol illumina tes, the l ight se nsor has
f ailed. For safe ty rea sons the low beams are
tu rned on permanently with t he switc h in
AU­
TO. However , yo u can cont inue to tu rn the
li g hts on and off using the light switch . In the
case of a defect in the rain sensor, t he wind ­
shield wiper lever functions are still availab le.
Have the light/rain senso r ch ecked as soon as
poss ible by an author ized Audi dealer .
6 Windshield washer fluid level too low
~ Please refill washer fluid
If the symbol illuminates, add w indshie ld
washe r fl ui d to the washer system and also to
t h e headlight washer system
¢ page 2 73 .
Bl Fuel supply too low
II Please refuel

36 Driver in formation d isplay
When this symbo l (I illuminates for the f irst
time, the fuel reserve in your vehicle is sti ll
between 2 .6 and 3 .2 gallons (10- 12 liters) .
Refue l as soon as possib le
¢ page 252.
If the symbol lights up, even when there is
ample fuel in the tank, and the text
T a nk sys ­
tem malfunct ion! Cont act wor kshop
appears
in the display, there is a fault in the system.
Contact a qualified workshop to have the fau lt
rectified.
t::l Battery voltage
If the battery's state of charge is not in the
optimal range, the
f• ) symbol is shown in the
d isplay and the dr iver message
Low battery
c harge : battery will be charg ed while driving
appears.
Wh ile this dr iver not ificat io n is displayed, you
have to be p repared for lim ited start ing capa­
b ili ty.
Driv er m essage appears and goes out
again
I f t his driver message appears after the igni ­
tion is turned o n or wh ile driving and it goes
out again after a while, the battery has been
adequately recharged .
Driver message app ears and does not go
out again
If th is driver notification appears after the ig ­
nition is turned on or while driving and does
not go out again, the battery's state of charge
is not in the opt imal range. Starting capability
is restricted. Have the battery checked by an
author ized Audi dealer as soon as poss ible .
{0 : Worn brake pads
El Brake pads !
If the warn ing light illum inates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­
ed . On USA models the wa rning light
El
l ) - : USA mod els only
comes on together with the warning light
- · Both sets of bra ke pads on an ax le
must a lways be rep laced at the same time.
A WARNING
=
Driving w it h bad brakes can cause a colli-
sion and ser ious personal in jury.
- If the warn ing light
El and the warning
light
11111> with the message Brake
pads!
comes o n in the inst rument cluster
d isp lay, immediately contact your au­
thor ized Audi dealer or qualified wo rk­
shop to have all b rake pads checked or
re placed if ne cessa ry.
~(i) Headlight range control
II He adlight range control defective !
-
If the symbol illuminates, the dynamic head­
li ght rang e control is no longer work ing prop­
erly. Have the system checked and repa ired at
yo ur aut horized Aud i dea le r.
~ -Engine oil level
l!I Plea se check oil level
When the symbol illuminates, check the en­
gine o il leve l as soon as possible
¢ page 263.
T op off t he oil at your ear liest opportu nity
¢ page 264 .
't::r.~ Engine oil sensor defective
II Oil level ! Sensor defective
If the symbol illum ina tes, contact yo ur au ­
thorized Aud i dea le r and have the oil sensor
inspected. Unti l yo u have this done, check t he
oi l level each time you refue l just to be on the
safe s ide
¢ page 263.
!?) Engine speed limitation
Applies to vehicles: wit h engine speed limitatio n
II! Do not e xceed ma x. engine speed of X XXX
rpm .,,.

The IPJ symbol illuminates when there is an
engine control malfunction. The indicator
light ~ in the instrument cluster also illum i­
nates. The engine speed is limited to the
speed d isplayed in the driver information sys­
tem. Keep in mind that the eng ine speed will
not exceed the value displayed in the drive r in­
formation system, for example when down­
shifting.
Please go to an authorized Aud i dealer or oth­
e r qualified workshop to have the malfunction
repaired.
~ Diesel particulate filter clogged
Applies to vehicles: with diesel engine and diesel part icu­
late filter
1,1 Particulate filter See owner's manual
When the. symbo l illuminates, you can al­
ter your driving style to assist the filter self­
cleaning process. Drive for approx imately
15
minutes with the selector lever in the S pos i­
tion at a min imum speed of 37 mph (60 km/
h) and an engine speed of approx imately
2,000 RPM. The temperature increase that
w ill result from this can burn
off the soot in
the filter. The symbol wi ll switch
off when the
cleaning is successf ul. After a successful
cleaning, there is no need to bring the car to
an author ized dealer or qualified workshop
because this is part of normal vehicle opera­
tion .
If the symbo l
II does not switch off, see
your authorized dealer or other qualified
workshop to have the prob lem corrected.
F or more information on the diesel particu­
late filter, refer to¢
page 229.
A WARNING
Always adapt yo ur speed to the current
weather, road and traffic condit ions. You
should never disobey traffic laws in order
to follow driv ing recommendations.
-
Driver information display 37
~O Adapt ive light defective
Applies to vehicles: with adaptive light
ml adaptive light defective
When this symbol ml ill uminates, it means
that adaptive light is defective. Go to an au­
thorized deale rship to have the headlights or
the control unit for the adaptive light re­
paired.
~ Ignition lock malfunction
If the!! symbol in the display comes on,
there is a ma lfunction in the e lectronic igni­
tion lock. An additional driver message can be
displayed by pressing the
I CHECK! button:
Ignition lock defective
11> Drive to an authorized Audi dealer or quali­
fied workshop at your earl iest convenience
t o have the malfunction corrected .
~ Windshield wipers faulty
fl Windshield wiper defective
When this symbo1 (.j illuminates, it means
that the electronics for the windsh ield wipers
are defective. Please go to an authorized Audi
dealer or qualified workshop to have the
winds hield wiper system repaired.

The transmitter and battery a re located in the
head of the remote control. The receiver is lo­
cated inside the vehicle. The maxim um effec ­
tive range depends on several things. Remem­
ber, if the battery is weak, the effective range
decrease s.
If you need to replace the remote contro l, or if
you need to have it repaired, you must see
your author ized Audi dealer. Only then can
you use the key again .
Personalizing the ma ster key
When t he ignit ion is t urned off or when the
veh icle is locked, vari ous conven ience settings
are stored automatically and assigned to the
key that was used . The settings that are as­
signed to the maste r key are recalled auto ­
ma ticall y when the veh icle is unlocked, when
the door is opened o r when th e ignition is
sw itched on .
Sett ings are saved for the following systems :
- Climate control
- Central lock ing
-W indows
- Am bien ce light ing*
- Seat memory*
- Steering w heel heat ing*
- Adaptive cruise control*
- Audi side ass ist*
- Pa rking system*
The
Remote control key f unc tion mus t be ac­
t iv at ed in t he MMI ¢
page 74, so that the
set tings for the driver 's seat (i ncluding the
settings for the steering co lumn and exter ior
mirrors) are saved on the master key through
the seat memory when the vehicle is locked,
and a re set automatically when the ve hicle is
u nl ocked.
(D Tips
- If
the ignition is sw itched on, t he remote
contr ol system is deact ivated.
- The remote control system can be affec t­
ed by other systems operating in the
same frequency range close to the vehi-
Opening and clo sin g 39
cle, such as mo bile telep hones, televi ­
sion broadcast ing stations, etc .
- F or Declara tion of Com pliance to United
States FCC and In du stry Canada re gula­
ti ons¢
page 322 .
Check light in the master key
The check light in the m aster key provides in­
formation about different conditions .
Fig. 29 Ch eck l ig ht in t he m aster key
Check lig ht functions in the master key :
Vehicle within range of the key
If
the vehicle is w it hi n range of the key, the
c heck light comes on br iefly once when a b ut­
ton is pressed .
Vehicle outside the range of the key
If
t he vehicle is ou ts id e the r ange of the key,
the check light comes on brie fly once and
then shows the status of the vehicle door l ocks:
- If the ligh t is fla shin g qu ickl y, the vehicle is
no t locke d.
- If the ligh t is f lash ing slow ly, the vehicle is
loc ked .
State of master key battery
If
t h e ch ec k light does not come on, the bat­
te ry is d ead and has to b e re pla ced . In ad di­
tio n, w hen the b attery is dea d the
!I! symbo l
a p pe ars in t he instrumen t clu ste r displ ay a s
well as the message:
Please change key battery
Battery replacement¢ page 40.

Valet key function
The valet key function prevents unauthorized
persons from opening the glove compart­
ment.
Fig. 31 Center conso le: button for va let key funct ion
Activating and deactivating the function
.,. Insert the master key into the ignit io n lock
and switch on the ignition .
.,. Press the
!VALET I button c:::;, fig. 31 to acti ­
vate/ deactivate the function as desired .
The indicator light in the button i lluminates
when the function is active.
.,. Remove the master key from the ignition
lock .
.,. Hand over only the
valet key c:::;, page 38,
fig .
27 to the person who will take charge of
the vehicle.
When the function is switched on, the buttons for opening the rear lid and glove compart­
ment have no function. The vehicle can be
d riven and locked and unloc ked w ith the mas­
ter key.
(j) Tips
Be sure to activate the funct ion befo re
handing over the valet key to someone
else . The va let key only fits the lock in the
driver's door and the ignition lock.
Power locking system
General description
The power locking system locks or unlocks all
doors and the rear lid simultaneously.
The power locking system in your vehicle in­
corporates the fo llowing functions:
Opening and closing 41
- Central locking function
- Select ive un lock feature ¢
page 44
-Remote control feature ¢ page 38
-Convenience key*¢ page 49
-Anti-theft alarm system ¢ page 50
All the doors and the rear lid are locked by the
central locking system when you lock the vehi­
cle. You can set whether generally only the
driver 's door or all doors and the rear lid
should be unlocked when you open the vehicle
in the MMI menu
Central locking to suit your
individual desires
c:::;, page 44.
Unlocking the vehicle
You can unlock the vehicle from outside either
by using the remote control
or by inserting
and turning the key in the driver's door lock .
When you
unlock your vehicle :
- The anti-theft alarm system is deactivated
briefly .
- The vehicle interior lights illuminate for ap­
proximately 30 seconds .
- All turn signal lights will flash twice when
the car is unlocked .
- After un locking the vehicle, you have 60 sec­
onds to open a door or the rear lid. After 60
seconds, the vehicle automatically locks and
the anti-theft alarm system act ivates aga in .
The rear lid can be locked or unlocked either
by using the remote control
or by inserting
and turning the key in the driver's door lock.
Unlocking the vehicle with the remote control
will on ly
unlock the rear lid, to open it, the lid
handle needs to be pressed .
Locking the vehicle
You can lock the vehicle from outside either by
using the remote control
or by inserting and
turning the key in the drivers's door lock .
When you
lock the veh icle:
- All doors and the rear lid are locked.
- All turn signal lights will flash once when
the car is locked.
- The ant i-theft alarm system is activated.
The horn of the anti-theft alarm system wi ll
sound and the anti-theft alarm system
IJJ,-

42 Openin g and clo sing
readiness light, located in the upper part of
the driver's door panel, will start to blink.
- T he vehicle interior lights turn off.
Unlocking and l ocking with Conven ience
k ey*
On vehicles which a re equipped w ith the C o n­
ve nience k ey*
authorization system, the
doors are unlocked without a key by means of
a proximity sensor in the door handle. The
doors are simi larly locked without a key using
the locking button. Each door has a proximity
sensor and a locking button .
Automatic l ock ing
The automatic locking feature locks all the ve­
hicle doors and the rear lid when you drive
faster than 9 mph (15 km/h). This function can be turned on and off in the MMI
C entr al
lo cking
Menu c:> page 44.
You can un lock the vehicle from the inside by :
- removing the key from the ign it ion sw itch
(the vehicle will automat ica lly unlock itself)
or
- pressing the unlock part of the power lock
switch @or
- pull ing the door handle (twice to open the
rear doors).
Unintent ionall y locking yourself out
In the following cases there safeguards to
prevent you locking your remote master key in
the vehicle :
- The veh icle does not lock with the power
locking sw itch
c:> page 44 if the driver's
door is open.
- On vehicles with Convenience key* , if the
most recently used master key is in the lug­
gage compartment, the rear lid is automati­
cal ly unloc ked aga in after it is closed.
Do not lock your vehicle with the
r e mot e m as ­
t e r k ey or Convenienc e key*
until all doors
and the rea r lid are closed. In t his way you
avoid locking yourse lf out accidenta lly.
A WARNING
- When you lock your vehicle from outside,
nobody- espec ially children -should re ­
main inside the vehicle . Remember,
when you lock the vehicle from the out­
side the windows cannot be opened from
the inside.
- When you leave the veh icle, always re­
move the ignition key and take it with
you . This will prevent passengers (chil­
dren, for example) from accidentally be ­
ing locked in the vehicle should they acci­
dentally press the power locking switch
in the front doors.
- Do not leave children inside the vehicle
unsupervised. In an emergency it would
be imposs ible to open the doors from
the outside without the key.
(D Tips
- In the event of a crash with airbag de­
ployment all locked doors will be auto­
matically unlocked to give access to the
vehicle occupants from the outside.
- If the power locking system sho uld mal­
function, you can lock each door individ­
ually using the vehicle key
c:> page 45 .
-If the power locking system shou ld fa il,
you can still open the fuel tank flap in an
emergency
c:> page 2 55 .
-You are well advised not to keep va lua­
bles inside an unattended vehicle, v is ible
or not. Even a properly locked vehicle
cannot p rov ide the secur ity of a safe .

Unlocking and locking the vehicle with
the remote control
How the remote control works.
Fig. 32 Remot e contr ol: fun ctio n but ton s
Either the driver 's door only or the entire vehi­
cle will unlock when the unlock button @ is
pressed once, depending on the settings in
the MMI
Central locking menu ¢ page 44 .
To unlock the vehicle ffi
.. Press button @.
.. Press button @two
times within two sec­
onds
to unlock all doors and the rear lid .
To lock the vehicle 5'.l
.. Press button @¢.&. in General description
on page 42 .
.. Watch that all turn signal lights flash once.
To unlock rear lid only~
.. Press button © for app roximately one sec­
ond .
PANIC Button
.. Push the red button@) to act ivate the panic
function. The horn sounds and the turn sig­ nals flash .
.. Push the button @again to deactivate the
panic function.
On vehicles w ith Convenience key*, the selec­
tor lever must be in the P posit ion, otherwise
the vehicle cannot be locked.
_& WARNING
Read and follow all WARNINGS ¢&. in
General description on page 42.
-
Opening and closing 43
@ Tips
-In order to make sure the locking func­
tion is working, you should a lways keep
your eye on the vehicle to make s ure it is
properly locked.
- Do not use the remote control if you are
inside the car, otherwise you may unin­
tentionally lock the vehicle, and then you
would set off the anti-theft alarm when
you try to start the eng ine or open a
door . In case this happens anyhow, push
the unlock button@.
- Use the pan ic function on ly if you are in
an emergency s ituation.
Operating locks with the key
To lock and unlock the vehicle from the out­
side, turn the key in the lock of the driver's door .
Fig. 33 Key turns fo r open in g and clos ing .
To unlock the vehicle
.. Insert the key into the lock of the driver's
door .
N N N :;
~
.. Turn the key one time to position @to un­
lock the driver's door.
.. Turn the key
two times to position @
¢
fig . 33 to unlock all doors and the rear lid .
To lock the vehicle
.. Close all windows and doors properly.
.. Turn the key in the lock of the driver's door
to the lock pos ition @ ¢
A in General de-
scription on page 42. ..,.