brake rotor INFINITI Q70 2018 Owner's Manual

BRAKING PRECAUTIONS
The brake system has two separate hydrau-
lic circuits. If one circuit malfunctions, you
will still have braking at two wheels.
Vacuum assisted brakes
The brake booster aids braking by using
engine vacuum. If the engine stops, you can
stop the vehicle by depressing the brake
pedal. However, greater foot pressure on
the brake pedal will be required to stop the
vehicle and the stopping distance will be
longer.
When the brake pedal is depressed slowly
and firmly, you may hear a clicking noise and
feel a slight pulsation. This is normal and
indicates that the Brake Assist System is
operating.
Wet brakes
When the vehicle is washed or driven
through water, the brakes may get wet. As
a result, your braking distance will be longer
and the vehicle may pull to one side during
braking.
To dry brakes, drive the vehicle at a safe
speed while lightly tapping the brake pedal
to heat-up the brakes. Do this until the
brakes return to normal. Avoid driving the
vehicle at high speeds until the brakes
function correctly.
PARKING BRAKE BREAK-IN
Break in the parking brake shoes whenever
the stopping effect of the parking brake is
weakened or whenever the parking brake
shoes and/or drums/rotors are replaced, in
order to assure the best braking perfor-
mance.
This procedure is described in the vehicle
service manual. It is recommended you visit
an INFINITI retailer for this service.
Using the brakes
Avoid resting your foot on the brake pedal
while driving. This will cause overheating of
the brakes, wearing out the brake and pads
faster and reduce gas mileage.
To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going
down a slope or long grade. Overheated
brakes may reduce braking performance and
could result in loss of vehicle control.
WARNING
.While driving on a slippery surface,
be careful when braking, accelerating
or downshifting. Abrupt braking or
accelerating could cause the wheels
to skid and result in an accident. .
If the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
Braking will be harder.
Starting and driving5-121
BRAKE SYSTEM

5-124Starting and driving
The computer has a built-in diagnostic
feature that tests the system each time you
start the engine and move the vehicle
forward or in reverse at a slow speed. When
the self-test occurs, you may hear a “clunk”
noise and/or feel a pulsation in the brake
pedal. This is normal and is not an indication
of a malfunction.
ACTIVE TRACE CONTROL (if so
equipped)
This system senses driving based on the
driver’s steering and acceleration/braking
patterns, and controls brake pressure at
individual wheels to help smooth vehicle
response.
When the INFINITI Drive Mode Selector is
set to the “SPORT” mode, the amount of
brake control provided by active trace con-
trol is reduced.
When the VDC OFF switch is used to turn
off the VDC system, the active trace control
system is also turned off.
If the active trace control is not functioning
properly, the Forward Emergency Braking
(FEB) system warning light illuminates in the
instrument panel.
RISE-UP AND BUILD-UP
The system gradually adjusts braking power
during normal braking to help provide an
enhanced brake feel.
BRAKE FORCE DISTRIBUTION
During braking while driving through turns,
the system optimizes the distribution of
force to each of the four wheels depending
on the radius of the turn.
WARNING
.The VDC system is designed to help
the driver maintain stability but does
not prevent accidents due to abrupt
steering operation at high speeds or
by careless or dangerous driving
techniques. Reduce vehicle speed
and be especially careful when driving
and cornering on slippery surfaces
and always drive carefully.
. The active trace control (if so
equipped), rise-up and build-up and
brake force distribution systems may
not be effective depending on the
driving condition. Always drive care-
fully and attentively.
. Do not modify the vehicle’s suspen-
sion. If suspension parts such as shock absorbers, struts, springs, sta-
bilizer bars, bushings and wheels are
not INFINITI recommended for your
vehicle or are extremely deteriorated,
the VDC system may not operate
properly. This could adversely affect
vehicle handling performance, and
the VDC warning light
may
illuminate.
. If brake related parts such as brake
pads, rotors and calipers are not
INFINITI recommended or are extre-
mely deteriorated, the VDC system
may not operate properly and the
VDC warning light
may illumi-
nate.
. If engine control related parts are not
INFINITI recommended or are extre-
mely deteriorated, the VDC warning
light
may illuminate.
. When driving on extremely inclined
surfaces such as higher banked cor-
ners, the VDC system may not oper-
ate properly and the VDC warning
light
may illuminate. Do not drive
on these types of roads.
. When driving on an unstable surface
such as a turntable, ferry, elevator or
ramp, the VDC warning light
may
illuminate. This is not a malfunction.
Restart the engine after driving onto

9-6Maintenance and schedules
Brake pads, rotors, drums and linings:
Check for wear, deterioration and fluid
leaks. Replace any deteriorated or damaged
parts immediately.
Exhaust system:
Visually inspect the exhaust pipes, muffler
and hangers for leaks, cracks, deterioration,
and damage. Tighten connections or replace
parts as necessary.
In-cabin microfilter:
Replace at specified intervals. When driving
for prolonged periods in dusty conditions,
replace the filter more frequently.
Propeller shaft(s):
Check for damage, looseness, and grease
leakage. (4WD/AWD/RWD)
Steering gear and linkage, axle and suspen-
sion parts, drive shaft boots:
Check for damage, looseness, and leakage
of oil or grease. Under severe driving condi-
tions, inspect more frequently.
Tire rotation:
Tires should be rotated every 5,000 miles
(8,000 km) according to the instructions
under “Explanation of general maintenance
items” (P.9-2). When rotating tires, check for
damage and uneven wear. Replace if neces-
sary.Transmission fluid/oil, differential oil and
transfer case oil:
Visually inspect for signs of leakage at
specified intervals.
To help ensure smooth, safe and economical
driving, INFINITI provides two maintenance
schedules that may be used, depending upon
the conditions in which you usually drive.
These schedules contain both distance and
time intervals, up to 120,000 miles
(192,000 km)/144 months. For most peo-
ple, the odometer reading will indicate when
service is needed. However, if you drive very
little, your vehicle should be serviced at the
regular time intervals shown in the schedule.
After 120,000 miles (192,000 km)/144
months, continue maintenance at the same
mileage/time intervals.
ADDITIONAL MAINTENANCE
ITEMS FOR SEVERE OPERATING
CONDITIONS
Additional maintenance items for severe
operating conditions;
should be performed
on vehicles that are driven under especially
demanding conditions. Additional mainte-
nance items should be performed if you
primarily operate your vehicle under the
following conditions:
. Repeated short trips of less than 5 miles
(8 km).
. Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
MAINTENANCE SCHEDULES

9-10Maintenance and schedules
CHASSIS AND BODY MAINTENANCE
Abbreviations: I = Inspect and correct or replace as necessary, R = Replace
MAINTENANCE OP-
ERATION
Perform at of miles,
kilometers or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
5
(8) 6 10
(16) 12 15
(24) 18 20
(32) 24 25
(40) 30 30
(48) 36 35
(56) 42 40
(64) 48 45
(72) 54 50
(80) 60 55
(88) 66 60
(96) 72
Brake lines and cables I I I I I I
Brake pads and rotors$ II I I I I
Brake fluid$ RR R
Automatic transmission
fluid See NOTE (1)
Transfer fluid and dif-
ferential gear oil See NOTE (2)
II I I I I
Steering gear and link-
age, axle and suspension
parts$ II I
Tire rotation See NOTE (3)
Propeller shaft and drive
shaft boots (AWD mod-
els)$ II I I I I
Exhaust system$ II I
In-cabin microfilter RR R R
Intelligent Key battery RR R R

MAINTENANCE OP-
ERATION
Perform at of miles, kilo-
meters or months,
whichever comes first.Miles × 1,000
(km × 1,000) Months MAINTENANCE INTERVAL
65
(104) 78 70
(112) 84 75
(120) 90 80
(128) 96 85
(136) 102 90
(144) 108 95
(152) 114 100
(160) 120 105
(168) 126 110
(176) 132 115
(184) 138 120
(192) 144
Brake lines & cables II II I I
Brake pads & rotors$ II II I I
Brake fluid$ RR R
Automatic transmission
fluid See NOTE (1)
Transfer fluid & differen-
tial gear oil See NOTE (2)
II II I I
Steering gear & linkage,
axle & suspension parts$ II I
Tire rotation See NOTE (3)
Propeller shaft & drive
shaft boots (AWD mod-
els)$ II II I I
Exhaust system$ II I
In-cabin microfilter RRR R
Intelligent Key battery RRR R
Maintenance and schedules9-11

The maintenance intervals shown on the
preceding pages are for normal operating
conditions. If the vehicle is mainly operated
under severe driving conditions as shown
below, more frequent maintenance must be
performed on the following items as shown
in the table.
Severe driving conditions
.Repeated short trips of less than 5 miles
(8 km).
. Repeated short trips of less than 10 miles
(16 km) with outside temperatures re-
maining below freezing.
. Operating in hot weather in stop-and-go
“rush hour” traffic.
. Extensive idling and/or low speed driving
for long distances, such as police, taxi or
door-to-door delivery use.
. Driving in dusty conditions.
. Driving on rough, muddy, or salt spread
roads.
. Using a car-top carrier.
Maintenance operation: Inspect = Inspect
and correct or replace as necessary.Maintenance item Maintenance operation Maintenance interval
Brake fluid ReplaceEvery 10,000 miles (16,000 km) or 12
months
Brake pads & rotors InspectEvery 5,000 miles (8,000 km) or 6
months
Steering gear & linkage, axle &
suspension parts Inspect
Every 5,000 miles (8,000 km) or 6
months
Propeller shaft & drive shaft
boots (AWD models) Inspect
Every 5,000 miles (8,000 km) or 6
months
Exhaust system InspectEvery 5,000 miles (8,000 km) or 6
months
Maintenance and schedules9-13
MAINTENANCE UNDER SEVERE
DRIVING CONDITIONS