dimensions INFINITI Q50 2018 Owner's Manual

.The original tires have built-in
tread wear indicators. When
wear indicators are visible, the
tire(s) should be replaced.
. Tires degrade with age and use.
Have tires, including the spare,
over 6 years old checked by a
qualified technician, because
some tire damage may not be
obvious. Replace the tires as
necessary to prevent tire failure
and possible personal injury.
. Improper service of the spare
tire may result in serious perso-
nal injury. If it is necessary to
repair the spare tire, it is re-
commended you visit an
INFINITI retailer for this ser-
vice.
. For additional information re-
garding tires, refer to “Impor-
tant Tire Safety Information”
(US) or “Tire Safety Informa-
tion” (Canada) in the Warranty
Information Booklet.Replacing wheels and tires
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. (See “Speci-
fications” (P.10-11) for recommended types
and sizes of tires and wheels.)
After the ignition switch is placed in the ON
position, it may take a period of time for the
tire pressure to be displayed in the vehicle
information display while the vehicle is
driven. Depending on the radio wave circum-
stance, tire pressure may not correctly be
displayed.
WARNING
. The use of tires other than those
recommended or the mixed use of
tires of different brands, construc-
tion (bias, bias-belted, radial or run-
flat), or tread patterns can adversely
affect the ride, braking, handling,
ground clearance, body-to-tire clear-
ance, tire chain clearance, speed-
ometer calibration, headlight aim
and bumper height. Some of these
effects may lead to accidents and
could result in serious personal injury.
. For Two-Wheel Drive (2WD) models,
if your vehicle was originally equipped with 4 tires that were the
same size and you are only replacing
2 of the 4 tires, install the new tires
on the rear axle. Placing new tires on
the front axle may cause loss of
vehicle control in some driving condi-
tions and cause an accident and
personal injury.
. If the wheels are changed for any
reason, always replace with wheels
which have the same off-set dimen-
sion. Wheels of a different off-set
could cause premature tire wear,
degrade vehicle handling character-
istics and/or interference with the
brake discs/drums. Such interference
can lead to decreased braking effi-
ciency and/or early brake pad/shoe
wear. See “Wheels and tires” (P.10-
12) of this manual for wheel off-set
dimensions.
. Since the spare tire is not equipped
with the TPMS, when a spare tire is
mounted or a wheel is replaced, the
TPMS will not function and the low
tire pressure warning light will flash
for approximately 1 minute. The light
will remain on after 1 minute. Have
your tires replaced and/or TPMS
system reset as soon as possible. It
is recommended you visit an INFINITI
retailer for these services.
Do-it-yourself8-43

10 Technical and consumer information
Capacities and recommended fluids/lubricants...... 10-2Fuel information (for VR30DDTT
engine model).............................................................. 10-4
Fuel information (for 2.0L turbo gasoline
engine model)............................................................... 10-6
Engine oil and oil filter recommendation............ 10-8
Air conditioning system refrigerant and
lubricant recommendations .................................. 10-10
Specifications.................................................................. 10-11 Engine........................................................................\
.. 10-11
Wheels and tires ...................................................... 10-12
Dimensions ................................................................ 10-13
When traveling or registering in
another country............................................................. 10-14
Vehicle identification.................................................... 10-14 Vehicle Identification Number (VIN) plate ....... 10-14
Vehicle identification number
(chassis number) ...................................................... 10-14
Engine serial number .............................................. 10-15
F.M.V.S.S./C.M.V.S.S. certification label.......... 10-15
Emission control information label..................... 10-16
Tire and loading information label...................... 10-16
Air conditioner specification label ...................... 10-16 Installing front license plate....................................... 10-17
Removing air deflectors.............................................. 10-18
Vehicle loading information....................................... 10-19
Terms ........................................................................\
10-19
Vehicle load capacity............................................ 10-20
Loading tips ............................................................ 10-21
Measurement of weights.................................... 10-21
Towing a trailer............................................................. 10-22 Flat towing.............................................................. 10-22
Uniform tire quality grading...................................... 10-22
Treadwear ............................................................... 10-22
Traction AA, A, B and C...................................... 10-23
Temperature A, B and C...................................... 10-23
Emission control system warranty.......................... 10-23
Reporting safety defects............................................ 10-24
Readiness for Inspection/Maintenance (I/M)
test (US only)................................................................. 10-25
Event Data Recorders (EDR) .................................... 10-25
Owner’s Manual/Service Manual
order information ......................................................... 10-26

DIMENSIONS
in (mm)
Base/Premium Sport
Overall length (with front license plate) 189.6 (4,815)189.6 (4,815)
Overall length (without front license plate) 189.1 (4,803) 189.1 (4,803)
Overall width 71.8 (1,824)71.8 (1,824)
Overall height 56.8 (1,443)*1
57.2 (1,453)*2,*3 56.8 (1,443)*1
57.2 (1,453)*2,*3
Front tread 60.8 (1,544)*4
60.4 (1,534)*5 60.8 (1,544)*6
60.6 (1,539)*7
60.4 (1,534)*5
Rear tread 61.8 (1,570)*9
61.6 (1,565)*8
61.4 (1,560)*5 61.6 (1,565)*6
61.4 (1,560)*7,*10 61.2 (1,555)*8
Wheelbase 112.2 (2,850)112.2 (2,850)
*1: Two-Wheel Drive (2WD) models with VR30DDTT engine
*2: Two-Wheel Drive (2WD) models with 2.0L turbo gasoline engine
*3: Intelligent All-Wheel Drive (AWD) models
*4: 17 × 7.5J and 18 × 7.5J wheel models
*5: 19 × 8.5J wheel models
*6: 19 × 9J wheel models
*7: 19 × 9J wheel (front) /19 × 9.5J wheel (rear) models
*8: 2.0L turbo gasoline engine models
*9: 17 × 7.5J and 18 × 7.5J wheel models with VR30DDTT engine
*10: 19 × 8.5J wheel models with VR30DDTT engine
Technical and consumer information10-13

11-2
Cockpit ...................................................................... 2-3
Cold weather driving ........................................ 5-141
Compact spare tire ............................................ 8-44
Console box ........................................................... 2-48
CoolantCapacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ...................... 8-7, 8-9
Checking engine coolant level ............. 8-7, 8-8
Corrosion protection ............................................. 7-7
Courtesy light ....................................................... 2-57
Cruise control ........................................................ 5-71 Fixed speed cruise control (on
ICC system) .................................................... 5-90
Intelligent Cruise Control (ICC) ................. 5-73
Cruise indicator .................................................... 2-23
Cup holders ........................................................... 2-46
Current fuel consumption ................................. 2-28
D
Daytime running light system .......................... 2-39
Defroster switch
Rear window and outside mirror
defroster switch ............................................. 2-35
Dimensions .......................................................... 10-13
Direct Adaptive Steering ................................. 5-128
Distance Control Assist (DCA) ........................ 5-94
Distance to empty ............................................... 2-27
Drive belts .............................................................. 8-19
Drive positioner .................................................... 3-33
Driver assist system indicator .......................... 2-24 Driving
Cold weather driving .................................. 5-141
Driving with automatic transmission ....... 5-16
Precautions when starting and driving ..... 5-4
E
ECO drive indicator light ................................... 2-16
ECO mode ............................................................. 5-23
ECO pedal system ............................................... 5-23
Economy Fuel .................................................................. 5-123
Elapsed time ......................................................... 2-27
Elapsed time and trip odometer ..................... 2-27
Emission control information label ............... 10-16
Emission control system maintenance ............ 9-8
Emission control system warranty .............. 10-23
Engine Before starting the engine .......................... 5-14
Break-in schedule ........................................ 5-122
Capacities and
recommended fluids/lubricants ................. 10-2
Changing engine coolant ...................... 8-7, 8-9
Changing engine oil and filter .................... 8-11
Checking engine coolant level ............. 8-7, 8-8
Checking engine oil level ............................. 8-11
Coolant temperature gauge ......................... 2-8
Emergency engine shut off ......................... 5-13
Engine block heater ................................... 5-142
Engine compartment check locations ........ 8-4
Engine cooling system ................................... 8-6
Engine oil ........................................................ 8-10 Engine oil and filter
replacement indicator ................................... 2-25
Engine oil and oil
filter recommendation ................................. 10-8
Engine serial number ................................. 10-15
Engine specifications .................................. 10-11
Engine start operation indicator ............... 2-21
If your vehicle overheats ............................. 6-16
Remote engine start .................................... 3-20
Remote engine start
operation indicator ........................................ 2-21
Starting the engine ....................................... 5-15
Engine coolant temperature gauge .................. 2-8
Entry/exit function Automatic drive positioner ......................... 3-33
Event Data Recorders (EDR) ........................ 10-25
Exhaust gas (carbon monoxide) ........................ 5-4
Explanation of scheduled
maintenance items ................................................. 9-5
F
F.M.V.S.S./C.M.V.S.S. certification label .... 10-15
Filter Air cleaner housing filter ............................. 8-21
Changing engine oil and filter .................... 8-11
Flashers (See hazard warning
flasher switch) ......................................................... 6-2
Flat tire ...................................................................... 6-3
Flat Tire - Visit dealer warning ....................... 2-22
Flat towing ......................................................... 10-22
Floor mat cleaning ................................................. 7-5

T
Tachometer ............................................................. 2-8
Temperature gaugeEngine coolant temperature gauge ............ 2-8
Theft (INFINITI Vehicle Immobilizer System)
Engine start ..................................................... 2-31
Thigh extension ....................................................... 1-5
Three-way catalyst ................................................ 5-5
Tilt/telescopic steering ...................................... 3-28
Tire Flat Tire - Visit dealer warning ................. 2-22
Run-flat tires .................................................... 6-4
Tire replacement indicator .......................... 2-25
Tire rotation .................................................... 8-41
Tire pressure
Low tire pressure warning light ................ 2-12
Tire Pressure Low - Add Air warning ........... 2-22
Tires
Flat tire ............................................................... 6-3
Low tire pressure
warning system ........................... 5-5, 6-3, 8-32
Run-flat tires .................................................. 8-39
Spare tire ........................................................ 8-44
Tire and Loading
information label ............................. 8-34, 10-16
Tire chains ....................................................... 8-40
Tire dressing ...................................................... 7-4
Tire pressure ................................................... 8-32
Tire Pressure Monitoring
System (TPMS) ........................... 5-5, 6-3, 8-32 Types of tires ................................................. 8-38
Uniform tire quality grading .................... 10-22
Wheel/tire size ............................................ 10-12
Wheels and tires ............................................ 8-32
Towing Flat towing ................................................... 10-22
Tow truck towing .......................................... 6-17
Towing a trailer ........................................... 10-22
TPMS Tire Pressure
Monitoring System .................... 5-5, 6-3, 8-32
TPMS, Tire pressure monitoring system TPMS with Tire Inflation Indicator ............ 5-8
Trailer towing .................................................... 10-22
Transceiver HomeLink® Universal Transceiver ........... 2-58
Transmission Automatic Transmission Fluid (ATF) ....... 8-13
Driving with automatic transmission ....... 5-16
Transmission shift lever lock release ....... 5-19
Transmitter (See remote keyless
entry system) ........................................................ 3-16
Traveling or registering in
another country ................................................ 10-14
Trip computer ....................................................... 2-27
Trip odometer ....................................................... 2-27
Trunk Interior trunk lid release .............................. 3-25
Light .................................................................. 2-57
Pass-through ..................................................... 1-7
Trunk hooks ................................................... 2-50 Trunk lid ........................................................... 3-23
Trunk lid release switch ............................... 3-24
Trunk open request switch ......................... 3-24
Trunk release power cancel switch .......... 3-25
Turn signal switch ............................................... 2-41
U
Underbody cleaning ............................................... 7-3
Uniform tire quality grading .......................... 10-22
V
Vanity mirror ......................................................... 3-32
Vanity mirror lights ............................................. 2-57
Variable voltage control system ..................... 8-19
Vehicle Dimensions ................................................... 10-13
Recovery (freeing a stuck vehicle) ............ 6-19
Vehicle Dynamic Control (VDC)
off switch ......................................................... 2-42
Vehicle dynamic control
(VDC) system ................................................ 5-132
Vehicle Dynamic Control (VDC)
warning light ................................................... 2-15
Vehicle identification number (VIN) ............ 10-14
Vehicle information display .............................. 2-19
Vehicle loading information ............................ 10-19
Vehicle security system ...................................... 2-30
Vehicle speedAverage speed ............................ 2-27
Ventilators ............................................................... 4-2
11-7