engine INFINITI Q70 2014 Repair Manual

Black plate (313,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
If the battery of the vehicle is discharged,
the push-button ignition switch cannot be
turned from the LOCK position.
Some indicators and warnings for opera-
tion are displayed on the dot matrix liquid
crystal display between the speedometer
and tachometer. (See“Dot matrix liquid
crystal display” (P.2-19).)
The ignition lock is designed so that the
ignition switch position cannot be switched
to LOCK until the shift lever is moved to the
P (Park) position.
When the ignition switch cannot be pushed
toward the LOCK position, proceed as
follows:
1. Move the shift lever into the P (Park) position.
2. Push the ignition switch to the OFF position. The ignition switch position
indicator will not illuminate.
3. Open the door. The ignition switch will change to the LOCK position.
The shift lever can be moved from the P
(Park) position if the ignition switch is in
the ON position and the brake pedal is
depressed.STEERING LOCK (if so equipped)GUID-9922DFC4-09F9-4894-AEC7-F19395815E1BIn order for the steering wheel to be
locked, it must be turned about 1/8 of a
right or left turn from the straight up
position.
To lock the steering wheel, push the
ignition switch to the OFF position. To
unlock the steering wheel, push the
ignition switch. If the steering lock release
malfunction indicator appears on the dot
matrix liquid crystal display, push the
push-button ignition switch again while
lightly turning the steering wheel right
and left. (See “Dot matrix liquid crystal
display” (P.2-19).)
PUSH-BUTTON IGNITION SWITCH
POSITIONS
Y51D-V-E01-2229A0DC-A631-4E4A-A7EC-3313996B03AA
LOCK (Normal parking position)Y51D-V-E01-E2F507CB-64CA-4F58-89D1-B22BC61E9D0FThe ignition switch can only be locked in
this position.
The ignition switch will be unlocked when
it is pushed to the ACC position while
carrying the Intelligent Key.
ACC (Accessories)Y51D-V-E01-5A3655C9-DAC6-49A0-A52C-85946FA4D08DThis position activates electrical acces-
sories such as the radio, when the engine is not running.
ON (Normal operating position)Y51D-V-E01-D069FD06-4A4C-4C0D-9E4B-ADF4B3227F3CThis position turns on the ignition system
and electrical accessories.
OFFY51D-V-E01-947259CA-5798-448F-A988-0028B6E8B42EThe engine can be turned off in this
position.
The ignition lock is designed so that the
ignition switch cannot be switched to the
LOCK position until the shift lever is moved
to the P (Park) position.
CAUTION
Do not leave the vehicle with the push-
button ignition switch in ACC or ON posi-
tions when the engine is not running for an
extended period. This can discharge the
battery.
EMERGENCY ENGINE SHUT OFFY51D-V-E01-B97EFA74-7631-43F4-BB12-722169CB72A8To shut off the engine in an emergency
situation while driving, perform the follow-
ing procedure:
.
Rapidly push the push-button ignition
switch 3 consecutive times in less than
Starting and driving5-11
Condition:

Black plate (314,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
5-12Starting and driving
1.5 seconds, or
. Push and hold the push-button ignition
switch for more than 2 seconds.
SSD0860
INTELLIGENT KEY BATTERY DIS-
CHARGE
Y51D-V-E01-881AEDE4-EC8A-459A-A547-0DBF545170CFIf the battery of the Intelligent Key is
discharged, or environmental conditions
interfere with the Intelligent Key operation,
start the engine according to the following
procedure:
1. Move the shift lever to the P (Park) position.
2. Firmly apply the foot brake.
3. Touch the ignition switch with the
Intelligent Key as illustrated. (A chime
will sound.) 4. Push the ignition switch while depres-
sing the brake pedal within 10 seconds
after the chime sounds. The engine will
start.
After step 3 is performed, when the
ignition switch is pushed without depres-
sing the brake pedal, the ignition switch
position will change to ACC.
NOTE:
. When the ignition switch is pushed to
the ACC or ON position or the engine is
started by the above procedures, the
Intelligent Key battery discharge indi-
cator appears on the dot matrix liquid
crystal display even if the Intelligent
Key is inside the vehicle. This is not a
malfunction. To turn off the Intelligent
Key battery discharge indicator, touch
the ignition switch with the Intelligent
Key again.
. If the Intelligent Key battery discharge
indicator appears, replace the battery
as soon as possible. (See “Intelligent
Key battery replacement” (P.8-30).)
Condition:

Black plate (315,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
Y51D-V-E01-07A09103-0621-4AD1-9346-3CE162BEDDB5.Make sure the area around the vehicle
is clear.
. Check fluid levels such as engine oil,
coolant, brake fluid and window
washer fluid as frequently as possible,
or at least whenever you refuel.
. Check that all windows and lights are
clean.
. Visually inspect tires for their appear-
ance and condition. Also check tires for
proper inflation.
. Lock all doors.
. Position seat and adjust head re-
straints.
. Adjust inside and outside mirrors.
. Fasten seat belts and ask all passen-
gers to do likewise.
. Check the operation of warning lights
when the ignition switch is pushed to
the ON position. (See “Warning/indica-
tor lights and audible reminders” (P.2-
10).)Y51D-V-E01-15E689F6-66C8-4808-987F-20991B32D7B41. Apply the parking brake.
2. Move the shift lever to the P (Park) or N
(Neutral) position. (P is recommended.)
The starter is designed not to operate
unless the shift lever is in either of the
above positions.
3. Push the ignition switch to the ON position. Depress the brake pedal and
push the ignition switch to start the
engine.
To start the engine immediately, push
and release the ignition switch while
depressing the brake pedal with the
ignition switch in any position.
.If the engine is very hard to start inextremely cold weather or when
restarting, depress the accelerator
pedal a little (approximately 1/3 to
the floor) and while holding, crank
the engine. Release the accelerator
pedal when the engine starts.
.If the engine is very hard to startbecause it is flooded, depress the
accelerator pedal all the way to the
floor and hold it. Push the ignition
switch to the ON position to start
cranking the engine. After 5 or 6
seconds, stop cranking by pushing
the ignition switch to OFF. After cranking the engine, release the
accelerator pedal. Crank the engine
with your foot off the accelerator
pedal
by depressing the brake pedal
and pushing the push-button igni-
tion switch to start the engine. If the
engine starts, but fails to run, repeat
the above procedure.
CAUTION
Do not operate the starter for more than 15
seconds at a time. If the engine does not
start, push the ignition switch to OFF and
wait 10 seconds before cranking again,
otherwise the starter could be damaged.
4. Warm-up
Allow the engine to idle for at least 30
seconds after starting. Do not race the
engine while warming it up. Drive at
moderate speed for a short distance
first, especially in cold weather. In cold
weather, keep the engine running for a
minimum of 2 - 3 minutes before
shutting it off. Starting and stopping
the engine over a short period of time
may make the vehicle more difficult to
start.
Starting and driving5-13
BEFORE STARTING THE ENGINE STARTING THE ENGINE
Condition:

Black plate (316,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
5-14Starting and driving
When racing the engine up to 4,000
rpm (VK56VD engine) or 4,500 rpm
(VQ37VHR engine) or more under no
load condition, the engine will enter the
fuel cut mode.
5. To stop the engine, shift the shift lever to the P (Park) position and push the
ignition switch to the OFF position.
In preparation for the next engine start,
the engine may have a slightly delayed
shutoff after pushing the ignition
switch to the OFF position, depending
on the driving conditions (VK56VD
engine models).
NOTE:
Care should be taken to avoid situations
that can lead to potential battery dis-
charge and potential no-start conditions
such as:
1. Installation or extended use of electro-
nic accessories that consume battery
power when the engine is not running
(Phone chargers, GPS, DVD players,
etc.)
2. Vehicle is not driven regularly and/or
only driven short distances.
In these cases, the battery may need to be
charged to maintain battery health.
Y51D-V-E01-3ADAC877-F0EE-4EEE-B344-6B3344CBF91D
AUTOMATIC TRANSMISSIONY51D-V-E01-658E6FAE-D0C8-4287-8C2F-7C3405FB31DDThe automatic transmission in your vehicle
is electronically controlled by a transmis-
sion control module to produce maximum
efficiency and smooth operation.
Shown on the following pages are the
recommended operating procedures for
this transmission. Follow these procedures
for maximum vehicle performance and
driving enjoyment.
Starting the vehicleY51D-V-E01-4DAD59A5-630D-4CAA-B791-6073B0B64774After starting the engine, fully depress the
foot brake pedal and push the shift lever
button before shifting the shift lever to the
R (Reverse), N (Neutral), D (Drive) or
Manual shift mode position. Be sure the
vehicle is fully stopped before attempting
to shift the shift lever.
This automatic transmission model is
designed so that the foot brake pedal
must be depressed before shifting from P
(Park) to any drive position while the
ignition switch position is ON.
The shift lever cannot be moved out of the
P (Park) position and into any of the other
gear positions if the ignition switch is
pushed to the LOCK, OFF or ACC position. 1. Keep the foot brake pedal depressed
and push the shift lever button to shift
into a driving gear.
2. Release the parking brake and foot brake, then gradually start the vehicle
in motion.
WARNING
. Do not depress the accelerator pedal
while shifting from P (Park) or N
(Neutral) to R (Reverse), D (Drive) or
manual shift mode. Always depress the
brake pedal until shifting is completed.
Failure to do so could cause you to lose
control and have an accident.
. Cold engine idle speed is high, so use
caution when shifting into a forward or
reverse gear before the engine has
warmed up.
. Never shift to P (Park) or R (Reverse)
while vehicle is moving forward. Never
shift to P (Park) or D (Drive) while vehicle
is moving rearward. Failure to do so
could cause you to lose control and have
an accident.
DRIVING THE VEHICLE
Condition:

Black plate (317,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
CAUTION
.Except in an emergency, do not shift to
the N (Neutral) position while driving.
Coasting with the transmission in the N
(Neutral) position may cause serious
damage to the transmission.
. When stopping the vehicle on an uphill
grade, do not hold the vehicle by
depressing the accelerator pedal. The
foot brake should be used for this
purpose.
. Do not downshift abruptly on slippery
roads. This may cause a loss of control.
SSD0973
Shift lever
ShiftingY51D-V-E01-41D731C7-80D2-4187-9850-D9937B0D67A0To move the shift lever,
: Push the button while depressing the
brake pedal,
: Push the button,
: Just move the shift lever.
After starting the engine, fully depress the
brake pedal and shift the shift lever from P
(Park) to R (Reverse), N (Neutral), D (Drive)
or Manual shift mode position.
Push the button to shift into P (Park) or R
(Reverse). All other positions can be
selected without pushing the button.
WARNING
Apply the parking brake if the shift lever is
in any position while the engine is not
running. Failure to do so could cause the
vehicle to move unexpectedly or roll away
and result in serious personal injury or
property damage.
CAUTION
Make sure the vehicle is completely stopped
and the transmission is in the P (Park)
position.
P (Park) position:GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use this position when the vehicle is
parked or when starting the engine. Make
sure the vehicle is completely stopped. The
brake pedal must be depressed and the
shift lever button pushed in to move the
shift lever from the N (Neutral) position or
any drive position to the P (Park) position.
Apply the parking brake. When parking on
a hill, apply the parking brake first, then
move the shift lever to the P (Park)
Starting and driving5-15
Condition:

Black plate (318,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
5-16Starting and driving
position.
CAUTION
Use this position only when the vehicle is
completely stopped.
R (Reverse):GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use this position to back up. Always be
sure the vehicle is completely stopped
before selecting the R (Reverse) position.
The brake pedal must be depressed and
the shift lever button pushed in to move
the shift lever from the P (Park) position,
the N (Neutral) position or any drive
position to the R (Reverse) position.
N (Neutral):
GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Neither forward nor reverse gear is en-
gaged. The engine can be started in this
position. You may shift to the N (Neutral)
position and restart a stalled engine while
the vehicle is moving.
D (Drive):
GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use this position for all normal forward
driving.
SSD1099
Paddle shifters (if so equipped)
Manual shift modeY51D-V-E01-BF0A9AA6-6CFA-4D8F-90F4-568EAE9C1B74When the shift lever is in the manual shift
gate, the transmission is ready for the
manual shift mode. Shift ranges can be
selected manually by moving the shift lever
up or down, or pulling the right-side or left-
side paddle shifter (if so equipped).
When shifting up, move the shift lever to
the + (up) side or pull the right-side paddle
shifter (+)
*A(if so equipped). The
transmission shifts to the higher range.
When shifting down, move the shift lever to
the −(down) side or pull the left-side
paddle shifter (−)
*B(if so equipped). The transmission shifts to the lower range.
When canceling the manual shift mode,
return the shift lever to the D (Drive)
position. The transmission returns to the
normal driving mode.
When you pull the paddle shifter while in
the D (Drive) position, the transmission will
shift to the upper or lower range tempora-
rily. The transmission will automatically
return to the D (Drive) position after a short
period of time. If you want to return to the
D (Drive) position manually, pull and hold
the paddle shifter for about 1.5 seconds.
In the manual shift mode, the shift range is
displayed on the position indicator in the
meter.
Shift ranges up or down one by one as
follows:
M1
?
/M2?
/M3?
/M4?
/M5?
/M6?
/M7
M7 (7th):GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use this position for all normal forward
driving at highway speeds.
M6 (6th) andM5 (5th):GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use these positions when driving up long
slopes, or for engine braking when driving
down long slopes.
Condition:

Black plate (319,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
M4 (4th),M3 (3rd) andM2 (2nd):GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use these positions for hill climbing or
engine braking on downhill grades.
M1 (1st):GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0Use this position when climbing steep hills
slowly or driving slowly through deep
snow, or for maximum engine braking on
steep downhill grades.
.Remember not to drive at high speeds
for extended periods of time in lower
than 7th gear. This reduces fuel econ-
omy.
. Moving the shift lever rapidly to the
same side twice will shift the ranges in
succession.
. In the manual shift mode, the transmis-
sion may not shift to the selected gear
or may automatically shift to the other
gear. This helps maintain driving per-
formance and reduces the chance of
vehicle damage or loss of control.
. When the transmission does not shift
to the selected gear, the Automatic
Transmission (AT) position indicator
light (on the dot matrix liquid crystal
display) will blink and the buzzer will
sound. .
In the manual shift mode, the transmis-
sion automatically shifts down to 1st
gear before the vehicle comes to a
stop. When accelerating again, it is
necessary to shift up to the desired
range.
Accelerator downshift —In D (Drive)
position —
Y51D-V-E01-542E1187-7AE3-48BD-B45E-F631844299CEFor passing or hill climbing, fully depress
the accelerator pedal to the floor. This
shifts the transmission down into the lower
gear, depending on the vehicle speed.
Fail-safeY51D-V-E01-B4B41F66-217F-4211-9BB6-5500BD56819FWhen the fail-safe operation occurs, note
that the transmission will be locked in any
of the forward gears according to the
condition.
If the vehicle is driven under extreme
conditions, such as excessive wheel spin-
ning and subsequent hard braking, the
fail-safe system may be activated. This will
occur even if all electrical circuits are
functioning properly. In this case, push
the ignition switch to the OFF position and
wait for 3 seconds. Then push the ignition
switch back to the ON position. The vehicle
should return to its normal operating
condition. If it does not return to its normal operating condition, have an
INFINITI retailer check the transmission
and repair if necessary.
Starting and driving5-17
Condition:

Black plate (320,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
5-18Starting and driving
SSD0974
Shift lock releaseY51D-V-E01-4CBF5E46-C9E6-41B4-940F-F90ECD96A65EIf the battery charge is low or discharged,
the shift lever may not be moved from the P
(Park) position even with the brake pedal
depressed and the shift lever button
pushed.
To move the shift lever, perform the
following procedure:
1. Push the ignition switch to the OFF orLOCK position.
2. Apply the parking brake.
3. Remove the shift lock cover
*Ausing a
suitable tool. 4.
Push down the shift lock
*Bas
illustrated.
5. Push the shift lever button
*Cand
move the shift lever to N (Neutral)
position
*Dwhile holding down the
shift lock.
Push the ignition switch to the ON position
to unlock the steering wheel (if so
equipped). Now the vehicle may be moved
to the desired location.
For models with a steering wheel lock
mechanism: If the battery is discharged
completely, the steering wheel cannot be
unlocked. Do not move the vehicle with the
steering wheel locked.
If the lever cannot be moved out of P
(Park), have an INFINITI retailer check the
automatic transmission system as soon as
possible.
Adaptive Shift Control (ASC)GUID-2BE0D0DF-855C-4440-8D03-E1AE9EF912E9The adaptive shift control system automa-
tically operates when the transmission is
in the "D" (drive) position and selects an
appropriate gear depending on the road
conditions such as uphill, downhill or
curving roads. Control on uphill and curving roads:
GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0A low gear is maintained that suits the
degree of the slope or curve to allow
smooth driving with a small number of
shifts.
Control on downhill roads:
GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0The adaptive shift control system shifts to
a low gear that suits the degree of the
slope, and uses the engine braking to
reduce the number of times that the brake
must be used.
Control on winding roads:
GUID-CA441E56-2FD0-4540-A74C-DB510E9F7AE0A low gear is maintained on continuous
curves that involve repeated acceleration
and deceleration, so that smooth accelera-
tion is available instantly when the accel-
erator pedal is depressed.
NOTE:
.
Adaptive shift control may not operate
when the transmission oil temperature
is low immediately after the start of
driving or when it is very hot.
. During some driving situations, hard
braking for example, the adaptive shift
control may automatically operate. The
transmission may automatically shift
to a lower gear for engine braking. This
increases engine speed but not vehicle
Condition:

Black plate (321,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
speed. Vehicle speed is controlled by
the accelerator pedal when the vehicle
is in the Adaptive shift control mode.
. When the adaptive shift control oper-
ates, the transmission sometimes
maintains a lower gear for a longer
period of time than when adaptive shift
control is not operating. Engine speed
will be higher for a specific vehicle
speed while ASC system is operating
than when ASC is not operating.
Y51D-V-E01-C6728743-9B18-47D2-8752-6DFF42B12BAC
WARNING
. Be sure the parking brake is fully
released before driving. Failure to do so
can cause brake failure and lead to an
accident.
. Do not release the parking brake from
outside the vehicle.
. Do not use the gear shift in place of the
parking brake. When parking, be sure
the parking brake is fully engaged.
. Do not leave children unattended in a
vehicle. They could release the parking
brake and cause an accident.
SPA2331
To apply: Fully depress the parking brake
pedal
*1.
To release:
1. Firmly apply the foot brake
*2.
2. Depress the parking brake pedal
*1
and the parking brake will be released.
3. Before driving, be sure the brake
warning light goes out.
Starting and driving5-19
PARKING BRAKE
Condition:

Black plate (322,1)
[ Edit: 2013/ 10/ 21 Model: Y51-D ]
5-20Starting and driving
Y51D-V-E01-C0EEA0E7-8281-43A9-B50B-279933178972
SSD1024
Drive mode select switch
Four driving modes can be selected by
using the drive mode selector switch,
STANDARD, SPORT, ECO and SNOW.
NOTE:
. When the drive mode select switch
selects a mode, the mode may not
switch quickly. This is not a malfunc-
tion.
. Select the STANDARD mode for normal
driving.
STANDARD MODEY51D-V-E01-2A69D9CF-8968-4411-B1B1-678B5A8E1A41Recommended for normal driving. Turn the
drive mode select switch to the
position. “STANDARD” appears on the dot
matrix liquid crystal display for 2 seconds.
SPORT MODEY51D-V-E01-12F87C14-3739-48A8-BB8F-4BD7B2C4BCBDAdjusts the engine and transmission
points to enhance performance. If the
vehicle is equipped with the active trace
control system, the amount of brake
control provided by active trace control is
reduced. (See “Vehicle Dynamic Control
(VDC) system” (P.5-102).) Turn the drive
mode select switch to the SPORT position.
“SPORT” appears on the dot matrix liquid
crystal display for 2 seconds.
NOTE:
In the SPORT mode, fuel economy may be
reduced.
SNOW MODEY51D-V-E01-2CF0CF99-743E-4A2F-B896-63241986BC6DUsed on snowy roads or slippery areas.
When the SNOW mode is activated, engine
output is controlled to avoid wheel spin.
Turn the SNOW mode off for normal
driving. Turn the drive mode select switch
to the SNOW position. “SNOW”appears on
the dot matrix liquid crystal display for 2 seconds.
ECO MODEY51D-V-E01-83A58480-0586-4801-B32F-A1E3F28863D3Adjusts engine and transmission points to
enhance fuel economy.
NOTE:
Selecting this drive mode will not neces-
sarily improve fuel economy as many
driving factors influence its effectiveness.
OperationY51D-V-E01-9412D164-939D-4D3B-8652-D9F79E95161CTurn the drive mode select switch to the
ECO position.
“ECO”appears on the dot
matrix liquid crystal display for 2 seconds
and the ECO drive indicator light illumi-
nates on the instrument panel.
When the accelerator pedal is depressed
within the range of economy drive, the ECO
drive indicator light illuminates in green.
When the accelerator pedal is depressed
above the range of economy drive, the
color of the ECO drive indicator light
changes to orange. For ECO pedal system
equipped models see “ECO pedal system”
(P.5-21).
The ECO drive indicator light will not
illuminate in the following cases:
. When the shift lever is in the R (Reverse)
position.
INFINITI DRIVE MODE SELECTOR
Condition: