brakes SUZUKI SX4 2006 1.G Service User Guide

Downloaded from www.Manualslib.com manuals search engine 4A-5 Brake Control System and Diagnosis:
Brakes Symptom DiagnosisS6RW0D4104002
Condition Possible cause Correction / Reference Item
Not enough braking forceBrake oil leakage from brake linesLocate leaking point and repair.
Brake disc or pad stained with oilClean or replace.
Overheated brakesDetermine cause and repair.
Poor contact of shoes on brake drumRepair for proper contact.
Brake shoe stained with oil or wet with
waterReplace.
Badly worn brake padReplace.
Defective wheel cylindersRepair or replace.
Malfunctioning caliper assemblyRepair or replace.
Malfunctioning brake boosterCheck system and replace as necessary.
Malfunctioning brake master cylinderCheck system and replace as necessary.
Air in systemBleed system.
Malfunctioning ABSCheck system and replace as necessary.
Brake pull (Brakes not
working in unison)Pad, disc, shoe and/or drum are wet
with water or stained with oil in some
brakesClean or replace.
Drum-to-shoe clearance out of
adjustment in some brakes
(Malfunctioning auto adjusting
mechanism) Check for inoperative auto adjusting
mechanism.
Disc and/or drum are out of round in
some brakesReplace.
Tires are inflated unequallyInflate equally.
Malfunction in wheel cylinders (rear
drum brake model)Repair or replace.
Disturbed front wheel alignmentAdjust as prescribed.
Unmatched tires on same axleTires with approximately the same amount of
tread should be used on the same axle.
Restricted brake pipes or hosesCheck for soft hoses and damaged lines.
Replace with new hoses and new double-
walled steel brake tubing.
Malfunctioning caliper assemblyCheck for stuck or sluggish pistons and proper
lubrication of caliper slide pin.
Caliper should slide.
Loose suspension partsCheck all suspension mountings.
Loose calipersCheck and torque bolts to specifications.
Noise (high pitched
squeak without brake
applied)Contact wear indicator to brake discReplace brake pad.
Worn rear brake shoeReplace brake shoe.
Excessive pedal travel
(Pedal stroke too large)Partial brake system failureCheck brake systems and repair as necessary.
Brake fluid leakingRepair the leaking point, and bleed air.
Air in system (soft / spongy pedal)Bleed system.
Rear brake system not adjusted
(malfunctioning auto adjusting
mechanism)Repair auto adjusting mechanism.
Adjust rear brakes.
Bent brake shoesReplace brake shoes.
Brake locked Malfunctioning ABSCheck system referring to “ABS Check in
Section 4E”.

Downloaded from www.Manualslib.com manuals search engine Brake Control System and Diagnosis: 4A-6
Dragging brakes (Without
a very light drag is
present in all brakes
immediately after pedal is
released)Master cylinder pistons not returning
correctlyReplace master cylinder.
Restricted brake pipes or hosesCheck for soft hoses or damaged pipes and
replace with new hoses and/or new brake
piping.
Incorrect parking brake adjustment on
rear brakesCheck and adjust to correct specifications.
Weakened or broken return springs in
the drum brakeReplace.
Sluggish parking brake cables or linkageRepair or replace.
Wheel cylinder or caliper piston stickingRepair as necessary.
Badly worn piston seal in caliperReplace piston seal.
Improper brake pedal free heightCheck brake pedal free height.
Pedal pulsation (Pedal
pulsates when depressed
for braking)Damaged wheel bearingsReplace wheel bearings.
Distorted steering knuckle or rear wheel
spindle or rear axle shaftReplace knuckle or rear wheel spindle or rear
axle shaft.
Excessive disc lateral runoutCheck per instructions. If not within
specifications, replace or machine disc.
Rear drums out of roundCheck runout.
Repair or replace drum as necessary.
Braking noiseGlazed brake pad and/or brake shoeRepair or replace brake pad and/or brake
shoe.
Worn or distorted brake shoeReplace brake shoe.
Loose front wheel bearingsReplace wheel hub.
Distorted backing plates or loose
mounting boltsReplace or retighten securing bolts.
Contact wear indicator to brake discReplace brake pads.
Brake warning light lights
after engine startParking brake appliedRelease parking brake and check that brake
warning light turns off.
Insufficient amount of brake fluidInvestigate leaky point, correct it and add
brake fluid.
Brake fluid leakingInvestigate leaky point, correct it and add
brake fluid.
Brake warning light circuit faultyRepair circuit.
Malfunctioning EBD systemCheck system referring to “EBD Warning Light
(Brake Warning Light) Comes ON Steady in
Section 4E”.
Brake warning light turns
on when brake is appliedBrake fluid leakingInvestigate leaky point, correct it and add
brake fluid.
Insufficient amount of brake fluidInvestigate leaky point, correct it and add
brake fluid.
Brake warning light fails
to turn on even when
parking brake is appliedBrake warning light circuit faultyReplace bulb or repair circuit.
ABS warning light turns
on after engine startMalfunctioning ABSCheck system referring to “ABS Check in
Section 4E”.
ABS warning light turns
on when brake is appliedMalfunctioning ABSCheck system referring to “ABS Check in
Section 4E”.
ABS warning light after
ignition switch has turned
ON Bulb burnt outReplace bulb.
Malfunctioning ABSCheck system referring to “ABS Check in
Section 4E”.
ABS warning light flashesNew ABS hydraulic unit / control module
assembly installed.Perform “ABS Hydraulic Unit Operation Check
in Section 4E”. Condition Possible cause Correction / Reference Item

Downloaded from www.Manualslib.com manuals search engine Brake Control System and Diagnosis: 4A-8
Brake Fluid Level InspectionS6RW0D4106004
CAUTION!
Do not use shock absorber fluid or any other
fluid which contains mineral oil. Do not use a
container which has been used for mineral oil
or a container which is wet from water.
Mineral oil will cause swelling and distortion
of rubber parts in hydraulic brake system and
water mixed into brake fluid will lower fluid
boiling point. Keep all fluid containers
capped to prevent contamination.

NOTE
Be sure to use particular brake fluid either as
indicated on reservoir cap of that vehicle or
recommended in owner’s manual which
comes along with that vehicle. Use of any
other fluid is strictly prohibited.
Fluid level should be between MIN and MAX
lines marked on reservoir.
When brake warning light lights sometimes
during driving, replenish fluid to MAX level.
When fluid decreases quickly, inspect brake
system for leakage. Correct leaky points and
then refill to specified level.

1) Check master cylinder, reservoir and reservoir hose
(if equipped) for crack, damage and brake fluid
leakage. If any faulty condition exists, correct or
replace.
2) Check that brake fluid level is between MAX (1) and
MIN marks (2) on reservoir.
Brake Light Switch AdjustmentS6RW0D4106005
Adjustment should be made as follows. Pull up brake
pedal toward you and while holding it there, adjust
switch position so that clearance between end of thread
and brake pedal is as specified. Then lock it by turning
clockwise.
Clearance between brake pedal and brake light
switch
“a”: 0.5 – 1.5 mm (0.02 – 0.05 in.)
Air Bleeding of Brake SystemS6RW0D4106006
CAUTION!
Brake fluid is extremely damaging to paint. If
fluid should accidentally touch painted
surface, immediately wipe fluid from paint
and clean painted surface.

Bleeding operation is necessary to remove air whenever
it entered hydraulic brake system.
Hydraulic lines of brake system are based on the
diagonal split system. When a brake pipe or hose was
disconnected at the wheel, bleeding operation must be
performed at both ends of the line of the removed pipe or
hose. When any joint part of the master cylinder of other
joint part between the master cylinder and each brake
(wheel) was removed, the hydraulic brake system must
be bled at all 4 wheel brakes.
NOTE
Perform bleeding operation starting with rear
brake caliper or wheel cylinder farthest from
master cylinder and then at front caliper of
the same brake line. Do the same on the
other brake line.

1
2
I7RW01410004-01
1. Right front brake caliper 3. Right rear wheel cylinder
2. Left front brake caliper 4. Left rear wheel cylinder
I5RW0A410005-01
I7RW01410005-01

Downloaded from www.Manualslib.com manuals search engine 4B-1 Front Brakes:
Brakes
Front Brakes
Repair Instructions
Front Disc Brake ComponentsS6RW0D4206001
I7RW01420001-05
1. Caliper 9. Disk brake piston
: Apply rubber grease included in piston
seal set or brake fluid to contact surface of
cylinder.17. Brake flexible hose
: Be sure to direct mark (18) to
inside of vehicle “I” as shown in
figure.
2. Caliper pin bolt 10. Pad spring
: Apply grease included in brake pad spare
parts to inside.: 26 N⋅m (2.6 kgf-m, 19.0 lb-ft)
3. Boot 11. Brake disc : 23 N⋅m (2.3 kgf-m, 17.0 lb-ft)
4. Slide pin No.1
: Apply rubber grease included in slide pin / boot
set.12. Brake caliper carrier : 9 N⋅m (0.9 kgf-m, 6.5 lb-ft)
5. Brake pad 13. Caliper carrier bolt : 85 N⋅m (8.5kgf-m, 61.5 lb-ft)
6. Shim 14. Bleeder plug : Do not reuse.
7. Cylinder boot
: Apply small amount of rubber grease included
in piston seal set or brake fluid.15. Flexible hose joint bolt
8. Piston seal
: Apply small amount of rubber grease included
in piston seal set or brake fluid.16. Hose washer

Downloaded from www.Manualslib.com manuals search engine Front Brakes: 4B-2
Front Disc Brake Pad On-Vehicle InspectionS6RW0D4206002
Inspect pad linings (1) periodically according to
maintenance schedule whenever wheels are removed
(for tire rotation or other reason). Take a look through
each end and inspection hole of caliper and check lining
thickness of outside and inside pads.
If lining is worn and its thickness (“a” in figure) is less
than limit, all pads must be replaced at the same time.
Front brake pad thickness “a” (lining thickness)
Standard: 10 mm (0.39 in.)
Limit: 2 mm (0.08 in.)
Front Disc Brake Pad Removal and InstallationS6RW0D4206003
NOTE
When replacing brake pad, replace it on the
right and left.

Removal
1) Hoist vehicle and remove front wheel.
2) Remove caliper pin bolts (1).
3) Remove caliper (1) from caliper carrier (2).
NOTE
Hang removed caliper (1) with a wire hook (4)
or the like so as to prevent brake hose from
bending and twisting excessively or being
pulled.
Don’t operate brake pedal with brake pads
removed.

4) Remove brake pads (3).
5) Remove brake pad spring (1) as show in figure.
Installation
1) Apply small amount of pad grease “a” (included in
spare parts) to pad spring and set brake pad spring
as shown in figure.
2) Set brake pad springs (1), and install brake pads (2)
and shim (4).
NOTE
Install the brake pad with wear indicator (3) to
the vehicle center side of front right brake
pad.

I7RW01420009-01
1
I7RW01420003-01
42
3
1
I7RW01420010-01
1
I7RW01420014-01
"a"
I7RW01420011-01
I7RW01420012-01

Downloaded from www.Manualslib.com manuals search engine 4B-3 Front Brakes:
3) Install caliper and tighten caliper pin bolts to
specified torque.
Tightening torque
Caliper pin bolt (a): 26 N·m (2.6 kgf-m, 19.0 lb-ft)
4) Install front wheel referring to “Wheel (with Tire)
Removal and Installation in Section 2D”.
5) Check brake effectiveness.
Front Disc Brake Pad InspectionS6RW0D4206004
Check pad lining for wear. When the wear exceeds limit,
replace with new one.
CAUTION!
Never polish pad lining with sandpaper. If
lining is polished with sandpaper, hard
particles of sandpaper will be deposited in
lining and may damage disc. When pad lining
requires correction, replace it with a new one.

Front disc brake pad thickness (lining thickness)
Standard: 10 mm (0.39 in.)
Limit: 10 mm (0.39 in.)
NOTE
When pads are removed, visually inspect
caliper for brake fluid leak. Correct leaky
point, if any.

Front Disc Brake Caliper Removal and
Installation
S6RW0D4206005
Removal
1) Hoist vehicle and remove front wheel.
2) Remove brake flexible hose joint bolt (1) from caliper
(2). As this will allow fluid to flow out of hose (3),
have a container ready beforehand.
3) Remove caliper pin bolts (1).
4) Remove caliper from caliper carrier.
Installation
1) Install caliper to caliper carrier.
2) Torque caliper pin bolts to specification.
NOTE
Make sure that boots are fit into groove
securely.

Tightening torque
Caliper pin bolt (a): 26 N·m (2.6 kgf-m, 19.0 lb-ft)
(a)
I7RW01420005-02
I2RH01420005-01
I7RW01420006-01
1
I7RW01420003-01
(a)
I7RW01420005-02

Downloaded from www.Manualslib.com manuals search engine Front Brakes: 4B-4
3) Connect flexible hose (3) to caliper as shown in
figure.
4) Torque flexible hose joint bolt to specification.
Tightening torque
Flexible hose joint bolt (a): 23 N·m (2.3 kgf-m,
17.0 lb-ft)
WARNING!
• Make sure that flexible hose is not twisted
when tightening joint bolt. If it is twisted,
reconnect it using care not to twist it.
• Be sure to direct mark (1) to inside of
vehicle (2) as shown in figure.

5) Tighten bleeder plug to specified torque.
Tightening torque
Bleeder plug (b): 9 N·m (0.9 kgf-m, 6.5 lb-ft)
6) Install front wheel referring to “Wheel (with Tire)
Removal and Installation in Section 2D”.
7) After completing the installation, fill reservoir with
brake fluid and bleed air from brake system referring
to “Air Bleeding of Brake System in Section 4A”.
8) Check every installed part for fluid leakage.
9) Perform brake test and check fluid leakage.
Front Disc Brake Caliper Disassembly and
Assembly
S6RW0D4206006
Disassembly
CAUTION!
Clean around caliper with brake fluid before
disassembly.

1) Remove disc brake piston with air blown into flexible
hose joint bolt installation hole.
WARNING!
Do not apply too highly compressed air
which will cause piston to jump out of
cylinder. Place a cloth (1) to prevent piston
from damage. It should be taken out
gradually with moderately compressed air.
Do not place your fingers in front of piston
when using compressed air.

2) Remove cylinder boot.
3) Remove piston seal using a thin blade like a
thickness gauge, etc.
CAUTION!
Be careful not to damage inside (bore side) of
cylinder.

4) Remove bleeder plug and cap from caliper.
I7RW01420007-02
I2RH01420011-01
I2RH01420013-01

Downloaded from www.Manualslib.com manuals search engine 4B-5 Front Brakes:
Assembly
Assemble parts in reverse order of disassembly,
observing the following instructions.
CAUTION!
• Wash each part cleanly before installation
in the same fluid as the one used in master
cylinder reservoir.
• Never use other fluid or thinner.
• Before installing piston seal and cylinder
boot to cylinder, apply rubber grease
included in piston seal set or brake fluid to
them.
• Install a new piston seal into groove in
cylinder securely making sure that it is not
twisted.
• After reassembling brake lines, bleed air
from them.

Before installing caliper to carrier, install slide pins with
rubber grease included in slide pin / boot set applied into
caliper carrier hole and check for its smooth movement
in thrust direction.
• Install piston seal, boot and piston to caliper referring
to the following instructions.
1) Replace with a new piston seal (1) at every overhaul.
After applying rubber grease included in piston seal
set or brake fluid, fit piston seal (1) into groove in
cylinder taking care not to twist it.2) Before inserting piston (1) into cylinder, apply rubber
grease included in piston seal set or brake fluid to
new boot (a) and install it onto piston as shown.
3) Fit boot as it is in figure into boot groove in cylinder
with fingers.
4) Insert piston into cylinder by hand and fit boot in boot
groove in piston.
NOTE
Check that boot is fitted in boot groove
securely all around piston and cylinder.

IYSQ01420021-01
1
I2RH01420017-01
A: 1 grooved side directed cylinder side
B: 2 grooved side directed pad side
I4RS0B420015-01
I2RH01420019-01
I2RH01420020-01

Downloaded from www.Manualslib.com manuals search engine Front Brakes: 4B-6
5) To confirm that boot is fitted in its groove in cylinder
properly, pull piston out of cylinder a little but do not
take it all out.
NOTE
Boot’s face (1) should be at the same level
from cylinder’s face (2) all around.

6) Insert piston into cylinder by hand.
Front Disc Brake Caliper InspectionS6RW0D4206007
Pin Boot and Cylinder Boot
Check boots for breakage, crack and damage.
If defective, replace boots.
Piston Seal
Excessive or uneven wear of pad lining may indicate
unsmooth return of piston.
In such case, replace rubber seal.
Front Brake Disc Removal and InstallationS6RW0D4206008
CAUTION!
During removal, be careful not to damage
brake flexible hose and not to depress brake
pedal.

Removal
1) Hoist vehicle and remove front wheel.
2) Remove caliper assembly by removing caliper
carrier bolts (2 pcs).
NOTE
Hang removed caliper with a wire hook or the
like so as to prevent brake hose from
bending and twisting excessively or being
pulled.

3) Pull brake disc off by using 8 mm bolts (1) (2 pcs).
I4RS0A420004-01
I2RH01420014-01
I2RH01420015-01
I4RS0B420010-01
I5RW0A420003-01

Downloaded from www.Manualslib.com manuals search engine 4B-7 Front Brakes:
Installation
1) Install caliper assembly to steering knuckle.
CAUTION!
Make sure that flexible hose is not twisted
when installing caliper assembly. If it is
twisted, reinstall it using care not to twist it.

2) Torque caliper carrier bolts to specification.
Tightening torque
Caliper carrier bolt (a): 85 N·m (8.5 kgf-m, 61.5
lb-ft)
3) Install front wheel referring to “Wheel (with Tire)
Removal and Installation in Section 2D”.
4) Perform brake test.
Front Brake Disc InspectionS6RW0D4206009
• Using magnetic stand and with dial gauge positioned
at about 10 mm (0.39 in.) inward from periphery of
disc, measure deflection of disc.
If it exceeds the limit, correct or replace the brake
disc.
Front brake disc deflection
Limit: 0.10 mm (0.004 in.) max.
Special tool
(A): 09900–20607
(B): 09900-20701
• Using micrometer, measure thickness of brake disc.
If it is less than limit, replace brake disc.
Front brake disc thickness
Standard: 22.0 mm (0.87 in.)
Limit: 20.0 mm (0.79 in.)
I4RS0B420012-01I4RS0B420013-01
I4RS0B420014-01