2016 AUDI RS7 SPORTBACK coolant temperature

scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safet y and
en vir onm enta l
concerns place very strict limits
on the nature of repairs and adjustments to en ­
g ine and transm ission parts wh ich an owner c an
perform .
Maintenance, adjustments and repairs usually re ­
qu ire special tools, test ing devices and other
equ ipment available to specially trained work­
shop perso nnel i n order to assure proper per ­
forma nce, re liability and safety of the ve hicle and
i ts many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your veh icle warranty.
Therefore, proof of se rvicing in accordance with
the ma intenance sc hedule may be a condition for
upho ld ing a possib le wa rranty claim made wi thin
the warranty pe riod.
Above all , operational safety can be adversely af­
fected, creating unnecessa ry risks fo r you and
your p assengers.
If in doubt about any se rvicing, have it done by
your author ized Audi dealer or any other properly
eq uipped and qua lified workshop. We strongly
urge yo u to g ive your author ized Audi dealer the
opport unity to perform a ll scheduled ma inte­
nance and necessary repairs . Your dealer has the
facilities, origina l parts and trained specialists to
keep your veh icle running properly .
Performing limited maintenance yourself
The follow ing pages des cribe a lim ited number of
p rocedures w hich can be per formed o n your veh i­
cle with ordinary tools, should the need arise and
trained personnel be unavailable . Before per­
forming any of these procedures, always thor­
ough ly read a ll of the app licab le text and carefu l­
ly follow the instructions g iven . Always rigorously
observe the
WARNING S provided .
Before you check anything in the engine com ·
partment , always read and heed all WARNINGS
c:> &. and c:> &. in Working in the engine compart­
ment on page 203.
Con sumer inf ormation
A WARNING
- Ser ious personal in jury may occur as a result
of improperly performed maintenance, ad ­
justments or re pairs .
- Always be extremely careful when work ing
on the vehicle. Always follow commonly ac ­
cepted safety practices and general com­ mo n sense. Never risk pe rsonal injury.
- Do not attempt any of the mai ntenance,
checks or repairs described on t he following
pages if you are not fu lly familiar wi th these
or other proce dures with respect to the ve­
h icle, o r are uncerta in how to pro ceed.
- Do not do a ny work withou t the prope r tools
a nd eq uipment. H ave the necessary wo rk
done by your au thorized Audi dealer or an­
other proper ly equipped and qualified work ­
shop.
- The engine compa rtment of any motor ve hi­
cle is a potent ially hazardous area . Never
reach into the area around or touch the radi­
ator fan.
It is temperature controlled and
can switch o n suddenly - even when the en­
g ine is off . The radiato r fan switches on au ­
tomatically when the coolan t reaches a cer­
tain tempe ra ture and w ill cont inue to run
until the coolant temperature d rops.
- Always sw itch off the ignition before anyone
gets under the vehicle .
- Always support your veh icle with safety
s tands if it is necessary to work underneat h
the vehicle . The jack supp lied with t he veh i­
cle is no t adequ ate for t his pu rpose and
could collapse ca us ing serious personal in­
jury.
- If you m ust wor k unde rne ath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels a re always sec urely blocked and that
the engine cannot be started.
- Always make sure the transmission se lector
lever (automatic t ransmiss ion) is in P (Park
position) and the pa rk brake is applied .
II>
263

Index
Numbers and
Symbols
-zone deluxe automatic climate control
Synchronizing . . . . . . . . . . . . . . . . . . . . . . . . 69
4-zone deluxe automatic climate control Air vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Basic settings . . . . . . . . . . . . . . . . . . . . . . . . 70
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Recirculation mode . . . . . . . . . . . . . . . . . . . 70
Residual heat . . . . . . . . . . . . . . . . . . . . . . . . 69
A
A/C (4-zone deluxe automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Accessories . . . . . . . . . . . . . . . . . . . . . . . 59, 264
Active lane assist . . . . . . . . . . . . . . . . . . . . . . 88
Adjusting the vibrat ion warn ing . . . . . . . . . 90
Cleaning the camera area . . . . . . . . . . . . . 194
Driver messages . . . . . . . . . . . . . . . . . . . . . . 89
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 89
switching on and off . . . . . . . . . . . . . . . . . . 89
Adapt ive air suspension/sport . . . . . . . . . . . . 95
Adaptive cruise control . . . . . . . . . . . . . . . . . . 79
Cleaning the sensor . . . . . . . . . . . . . . . . . . 194
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Request for driver intervention . . . . . . . . . . 84
Stop-and-go traffic . . . . . . . . . . . . . . . . . . . 83
Adaptive dampers Indicator light . . . . . . . . . . . . . . . . . . . . . . . 21
Adaptive Light (defective) . . . . . . . . . . . . . . . 21
Adding Engine coolant . . . . . . . . . . . . . . . . . . . . . . 210
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Additives Engine oil 207
Adjusting Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Steering column electrically . . . . . . . . . . . . 71
Steer ing column manually . . . . . . . . . . . . . 71
Adjusting a ir distribution (4-zone deluxe auto­
matic climate contro l) . . . . . . . . . . . . . . . . . . 69
Adjusting the temperature (4-zone deluxe au­
tomatic climate control) . . . . . . . . . . . . . . . . 68
advanced key
refer to Convenience key . . . . . . . . . . . . . . . 72
266
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 155
Advanced Airbag-System . . . . . . . . . . . . . . 139
Advanced Airbag System components . . . 142
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Child restraints . . . . . . . . . . . . . . . . . . . . . 161
Components (front airbags) . . . . . . . . . . . 142
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . . . 136
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Front airbags . . . . . . . . . . . . . . . . . . . 139, 140
How do the front airbags work? . . . . . . . . 144
How many air bags does my vehicle have? 142
How the Advanced Airbag System compo-
nents work together . . . . . . . . . . . . . . . . . 144
Important information . . . . . . . . . . . . . . . 135
Important safety instructions on the knee
airbag system . . . . . . . . . . . . . . . . . . . . . . . 153
Knee airbags. .. .. .. .. ............. .. 151
Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . 146
PASSENGER AIR BAG O FF light . . . . . . . . . 147
Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Safety instructions . . . . . . . . . . . . . . . . . . . 149
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 153
Side curta in airbags . . . . . . . . . . . . . . . . . . 156
Warning/indicator lights............... 17
Warning/Indicator lights . . . . . . . . . . . . . 146
When must the system be inspected? 146
Aircraft Transporting your vehicle . . . . . . . . . . . . . 256
Alignment pin (changing the wheel) . . . . . . 239
All season tires . . . . . . . . . . . . . . . . . . . . . . . 233
All weather lights . . . . . . . . . . . . . . . . . . . . . . 43
All wheel drive . . . . . . . . . . . . . . . . . . . . . . . 184
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . 46
Anti-freeze Windshield washer system . . . . . . . . . . . . 216
also refer to Engine coolant . . . . . . . . . . . 209
Anti- lock braking system
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Warning/indicator lights . . . . . . . . . . . . . . . 18
Anti -Lock Braking System . . . . . . . . . . . . . . 180
Anti-slip regulation Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
Anti-Slip Regulation . . . . . . . . . . . . . . . . . . . 180

D
Data recorder . . . . . . . . . . . . . . . . . . . . . . . . 179
Date display . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Daytime running lights . . . . . . . . . . . . . . . . . 43
Declaration of compliance
Adapt ive cruise control . . . . . . . . . . . . . . . 265
Audi side assist . . . . . . . . . . . . . . . . . . . . . 265
Cell phone package . . . . . . . . . . . . . . . . . . 265
Convenience key . . . . . . . . . . . . . . . . . . . . . 265
Electronic immobilizer. . . . . . . . . . . . . . . . 265
Garage door opener (Homelink) . . . . . . . . 265
Remote control key . . . . . . . . . . . . . . . . . . 265
Tire pressure monitoring system . . . . . . . 265
Defective light bulb warning Indicator light . . . . . . . . . . . . . . . . . . . . . . . 20
Defrosting (windows)
Deluxe automatic climate control . . . . . . . .
69
DEF (instrument cluster) . . . . . . . . . . . . . . . . 25
Determining correct load limit ... .. .. .. . 231
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Dimming the rearview mirror . . . . . . . . . . . .
48
Distance driven . . . . . . . . . . . . . . . . . . . . . . . . 23
Door/rear lid warning . . . . . . . . . . . . . . . . . . . 22
Doors Child safety lock . . . . . . . . . . . . . . . . . . . . . . 39
Driver information system . . . . . . . . . . . . . . . 22
Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CD/radio display. . . . . . . . . . . . . . . . . . . . . . 22
Door/rear lid warning . . . . . . . . . . . . . . . . . 22
Efficiency program . . . . . . . . . . . . . . . . . . . . 24
Engine oil temperature display . . . . . . . . . . 26
Exterior temperature display . . . . . . . . . . . 22
On-board computer . . . . . . . . . . . . . . . . . . . 23
Service interval display . . . . . . . . . . . . . . . 216
Shifting indicator . . . . . . . . . . . . . . . . . . . . . 26
Driver seating position . . . . . . . . . . . . . . . . .
119
drive select
adaptive air suspension/sport . . . . . . . . . . . 95
Adaptive dampers . . . . . . . . . . . . . . . . . . . . 95
Curve light . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Engine sound . . . . . . . . . . . . . . . . . . . . . . . . 95
Safety belt tensioner . . . . . . . . . . . . . . . . . . 95
Sport differential . . . . . . . . . . . . . . . . . . . . . 95
Drive select . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Driving economically . . . . . . . . . . . . . . . . . .
190
Driving safely . . . . . . . . . . . . . . . . . . . . . . . . 118
Index
Driving through water . . . . . . . . . . . . . . . . . 188
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dust filter
refer to Pollutant filter . . . . . . . . . . . . . . . . 67
Dynam ic steering
Indicator light
E
184
Easy seat entry . . . . . . . . . . . . . . . . . . . . . . . . 72
Economy tips (efficiency program) . . . . . . . . 24
Efficiency program . . . . . . . . . . . . . . . . . . . . . 24
Electromechanical parking brake Operation . . . . . . . . . . . . . . . . . . . . . . . . . . .
74
Releasing and closing . . . . . . . . . . . . . . . . . 7 4
Warning/indicator lights . . . . . . . . . . . . . . .
14
Electromechanical steering . . . . . . . . . . . . . 184
Indicator light . . . . . . . . . . . . . . . . . . . . . . 184
Electronic differential lock
Indicator light . . . . . . . . . . . . . . . . . . . . . . .
18
Electronic Differential Lock . . . . . . . . . . . . . 180
Electronic differential lock (EDL)
Warning/indicator lights . . . . . . . . . . . . . . . 18
Electronic immobilizer . . . . . . . . . . . . . . . . . . 31
Electronic power control (EPC)
warning/ind icator light . . . . . . . . . . . . . . . .
19
Electronic stabili zation control
Indicator light . . . . . . . . . . . . . . . . . . . . . . .
18
Electronic Stabilization Contro l . . . . . . . . . . 180
Sport mode . . . . . . . . . . . . . . . . . . . . . . . . 181
Emergency actuation
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Emergency flasher . . . . . . . . . . . . . . . . . . . . .
46
Warning/indicator lights . . . . . . . . . . . . . . . 21
Emergency operation Emergency braking function (parking brake) .7.6
Fuel filler door . . . . . . . . . . . . . . . . . . . . . .
201
Luggage compartment lid . . . . . . . . . . . . . . 38
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41
Emergency release
Selector lever . . . . . . . . . . . . . . . . . . . . . . . 106
Emergency starting . . . . . . . . . . . . . . . . . . . 253
Energy management . . . . . . . . . . . . . . . . . .
186
Engine
Compartment . . . . . . . . . . . . . . . . . . . . . . . 205
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
269

Index
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Starting with jumper cables . . . . . . . . . . . 253
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Engine compartment . . . . . . . . . . . . . . . . . . 205
Closing the hood . . . . . . . . . . . . . . . . . . . . 204
Opening the hood . . . . . . . . . . . . . . . . . . . 203
Safety instructions . . . . . . . . . . . . . . . . . . . 203
Working in the engine compartment . . . . 203
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . 209
Adding coolant .. ............. .... .. . 210
Checking the engine coolant level. . . . . . . 209
Expansion tank . . . . . . . . . . . . . . . . . . . . . . 209
Radiator fan .... ................ .... 211
Temperature gauge . . . . . . . . . . . . . . . . . . . 10
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Checking oil level . . . . . . . . . . . . . . . . . . . . 207
Consumption . . . . . . . . . . . . . . . . . . . . . . . 207
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 16
Oil consumption . . . . . . . . . . . . . . . . . . . . . 206
Pressure malfunction . . . . . . . . . . . . . . . . . 16
Sensor defective . . . . . . . . . . . . . . . . . . . . . . 20
Specification and viscosity . . . . . . . . . . . . . 205
Temperature ind icator . . . . . . . . . . . . . . . . . 26
Eng ine sound . . . . . . . . . . . . . . . . . . . . . . . . . 95
Engine speed limitation (indicator light) 20
Engine warm-up request
I ndicator l ight . . . . . . . . . . . . . . . . . . . . . . .
20
Environment
Catalytic converter . . . . . . . . . . . . . . . . . . .
189
Disposing of your vehicle battery . . . . . . . 215
Driving at high speeds . . . . . . . . . . . . . . . . 191
Fuel. .... .. .. .. ... .......... .. .. .. . 200
Leaks under your vehicle . . . . . . . . . . . . . . 203
Letting the vehicle stand and warm up. .. 191
Proper disposal of drained brake fluid . . . 212
Proper disposal of drained engine coolant 210
Proper disposal of drained engine oil 207, 208
Recycling used engine oil . . . . . . . . . . . . . 207
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . . 198
What should I do with an old battery? . . . 215
ESC
Automatic post-co llision braking system .
181
Event Data Recorder (EDR) . . . . . . . . . . . . . 179
E . k xpans1on tan . . . . . . . . . . . . . . . . . . . . . . . 209
270
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 43
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
D' .
1mming ............................
48
Heating... .. .. .. .. .. ............. ... 47
Exterior temperature display . . . . . . . . . . . . .
22
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
168
Convertible child safety seats . . . . . . . . . . 166
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 165
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 123
For the sake of the environment
Environmentally-friendly driving . . . . . . .
190
Gasoline fumes and the environment . . . . 200
Reducing eng ine noise by early upsh ifting . 10
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Saving fuel by early upshifting . . . . . . . . . . 10
w . th .
arming up e engine . . . . . . . . . . . . . . . . 72
Front airbags
D . t· escnp 10n . . . . . . . . . . . . . . . . . . . . . . . . . 139
How they work . . . . . . . . . . . . . . . . . . . . . . 144
Frontal collisions and the laws of physics . . 128
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Child restraints in the front seat . . . . . . . . 136
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . .
198
Blended gasoline . . . . . . . . . . . . . . . . . . . . 198
Current consumpt ion . . . . . . . . . . . . . . . . . . 23
Fuel filler neck . . . . . . . . . . . . . . . . . . 199, 200
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 10, 11
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Gasoline additives . . . . . . . . . . . . . . . . . . . 199
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 20
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 198
Recommendation. . . . . . . . . . . . . . . . . . . . 198
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . . . 190
T k . an capacity . . . . . . . . . . . . . . . . . . . . . . . 260
Fueling
Fuel filler door emergency release . . . . . .
201
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Fuses
Assignment . . . . . . . . . . . . . . . . . . . . . . . . 250
Replac ing . . . . . . . . . . . . . . . . . . . . . . . . . . 249
G
Garage door opener (Homelink) . . . . . . . . . . 41
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 60
Gauges Engine coolant temperature . . . . . . . . . . . . 10
General illustration . . . . . . . . . . . . . . . . . . . . . 8
Generator (warning/indicator lights) . . . . . . 15
Glossary of tire and loading terminology . . 220
Glove compartment (cooled) . . . . . . . . . . . . . 60
Gross Vehicle Weight Rating (GVWR) . . . . . 259
H
Head-up display . . . . . . . . . . . . . . . . . . . . . . . 26
H eadlight
Assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
H eadlight range control system . . . . . . . . . . 43
Headlights Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Headlight range control . . . . . . . . . . . . . . . 21
Headlight range control system . . . . . . . . . 43
Washer system . . . . . . . . . . . . . . . . . . . . . . 49
Head restraints. .. .... ......... .. .. .. . 121
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Removing . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Heated Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 47
Rear window (4- zone deluxe automatic cli­
mate control) . . . . . . . . . . . . . . . . . . . . . . . . 69
Seats (4-zone deluxe automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Washer nozzles . . . . . . . . . . . . . . . . . . . . . . 49
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Heavy clothing and safety belts . . . . . . . . . . 129
Hex socket . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
High beam . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
High voltage warning label . . . . . . . . . . . . . 259
Hill descent control . . . . . . . . . . . . . . . . . . . 104
Homelink (garage door opener) . . . . . . . . . . 41
H ood (release lever) . . . . . . . . . . . . . . . . . . . 203
Index
Hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
How a re child restraint system anchors relat -
ed to child safety . . . . . . . . . . . . . . . . . . . . . 172
How many airbags does my vehicle have? . . 142
How safety belt pretensioners work . . . . . . 133
I
Ignition
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 17
Switching on/off . . . . . . . . . . . . . . . . . . . . . 72
Imbalance (wheels) . . . . . . . . . . . . . . . . . . . 226
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Importantthingstodobeforedriving .. .. 118
Improperly worn safety belts . . . . . . . . . . . 133
Ind icator lights . . . . . . . . . . . . . . . . . . . . . . . . 11
also refer to Warning/indicator lights . . . . 11
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . . 165
Inflation pressure (tires) . . . . . . . . . . . . . . . 228
Inspection interval . . . . . . . . . . . . . . . . . . . . 216
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 169
Installing the upper tether strap on the an­
chorage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 5
Instrument cluster . . . . . . . . . . . . . . . . . . . . . 10
Indicator lights . . . . . . . . . . . . . . . . . . . . . . 11
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . 1 0
Adjusting illumination . . . . . . . . . . . . . . . . . 47
Inst ruments and cont rols
General illustrat ion . . . . . . . . . . . . . . . . . . . . 8
Interior l ighting
Ambient lighting . . . . . . . . . . . . . . . . . . . . . 46
Front and rear . . . . . . . . . . . . . . . . . . . . . . . 46
Intermittent (windshield wipers) . . . . . . . . . 49
]
Jump-starting 253
Jump er cables . . . . . . . . . . . . . . . . . . . . . . . . 254
K
Key............ .... ................ .. 30
Emergency key . . . . . . . . . . . . . . . . . . . . . . . 30
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 73
Key not recognized . . . . . . . . . . . . . . . . . . . 74
271