2021 SUZUKI ALTO Engine

96
76G-74E
INSPECTION AND MAINTENANCE9-13Replace the oil filter
1) Using an oil filter wrench, turn the oilfilter counterclockwise and remove it.
2) Using a clean rag, wipe off the mounting surface on the engine where the new
filter will be seated.
3) Smear a little engine oil around the rubber gasket of the new oil filter.
4) Screw on the new filter by hand until the filter gasket contacts the mounting
surface.
To tighten the oil filter properly, it is
important to accurately identify the
position at which the filter gasket
first contacts the mounting surface.
5. Tighten the filter specified turn from the point of contact with the mounting sur-
face (or to the specified torque) using an
oil filter wrench.
Tightening torque for oil filter
1 turn or
14 Nm (1.4 kg-m, 10.5 lb-ft)
CAUTION
Refill with oil and check for leaks.
1) Pour oil through the filler hole and install the filler cap.
For the approximate capacity of the oil,
refer to the "CAPACITIES" item in the
"SPECIFICATIONS" section.
2) Start the engine and look carefully for leaks at the oil filter and drain plug. Run
the engine at various speeds for at least
5 minutes.
3) Stop the engine and wait for 5 minutes. Check the oil level again and add oil if
necessary. Check for leaks again.
When replacing the oil filter, it is
recommended that you use a genuine
MARUTI replacement filter.
Oil leaks from around the oil filter or
drain plug indicate incorrect installa-
tion or gasket damage. If you find any
leaks or are not sure that the filter
has been properly tightened, have the
vehicle inspected by your MARUTI
SUZUKI dealer.
CAUTIONCAUTIONCAUTION
76G-09-007 76G-09-008
To prevent oil leakage, make sure
that the oil filter is tight, but do not
overtighten it.
(1) Oil filter
(2) 1 Turn

9776G-74E
INSPECTION AND MAINTENANCE
9-14
GEAR OILOil filler and level plug 1
Tightening torque: 21 Nm (2.1 kg-m, 15.5
lb-ft)
Specified Manual Transmission oil
When adding gear oil, use the appropriate
viscosity and grade as shown in the chart
below. We highly recommend you use API
GL-4 SAE 75W-90 (1) gear oil.
Type of oil Gear oil, API GL-4
Gear oil level check
To check the gear oil level, use the
following procedure:
1) Park the vehicle on a level surface with the parking brake applied. Then, stop the
engine.
2) Clean casing around oil filler plug to remove risk of any loose dirt or debris
entering oil filler plug hole. Remove the
oil filler plug 1.
3) Feel the inside of the hole with your finger. If the oil level comes up to the
bottom of the plug hole, the oil level is
correct. If so, reinstall the plug.
4) If the oil level is low, add gear oil
through the filler plug hole 1 until the
oil level reaches the bottom of the filler
hole, then reinstall the plug. After driving the vehicle, the
transmission oil temperature may be
high enough to burn you. Wait until
the oil filler plug is cool enough to
touch with your bare hands before
inspecting transmission oil.
When tightening the plug, apply
sealing compound to the plug threads
to prevent oil leakage.
Gear oil change
Since special procedures, materials and
tools are required, it is recommended that
you trust this job to your authorized
MARUTI SUZUKI dealer.
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76G-09-009 76G-09-010

98
76G-74E
INSPECTION AND MAINTENANCE9-15ENGINE COOLANT
76G-09-011
ALTO
76G-09-012
EXAMPLE
EXAMPLE
EXAMPLE
ALTO K10
EXAMPLE
ALTO
ALTO K10
Selection of CoolantTo maintain optimum performance and
durability of your engine, use MARUTI
Genuine Coolant or equivalent.
This type of coolant is best for your cooling
system as it:
Helps maintain proper engine temperature.
Gives proper protection against freezing
and boiling.
Gives proper protection against corrosion and rust.
Failure to use the proper coolant can dam-
age your cooling system. Your MARUTI
SUZUKI authorized dealer can help you
select the proper coolant.

9976G-74E
INSPECTION AND MAINTENANCE
9-16
CAUTION
To avoid damaging your cooling sys-
tem:
Always use a high quality ethyleneglycol base non-silicate type cool-
ant diluted with distilled water at
the correct mixture concentration.
Make sure that the proper mix is 30/ 70 coolant to distilled water.
Concentrations greater than 70/30
coolant to distilled water will cause
over heating conditions.
Do not use straight coolant nor plain water.
Do not add extra inhibitors or addi-
tives. They may not be compatible
with your cooling system.
Do not mix different types of base coolants. Doing so may result in
accelerated seal wear and/or the
possibility of severe overheating
and extensive engine damage. Coolant Level Check
Check the coolant level at the reservoir
tank, not at the radiator. With the engine
cool, the coolant level should be between
the “FULL” and “LOW” marks.
Adding Coolant
If the coolant level is below the “LOW”
mark, more coolant should be added.
Remove the reservoir tank cap and add
coolant until the reservoir tank level reaches
the “FULL” mark. Never fill the reservoir
tank above the “FULL” mark.
CAUTION
The mixture you use should con-
tain 50% concentration of anti-
freeze.
If the lowest ambient temperature
in your area is expected to be –
35°C (–31°F) or below, use higher
concentrations up to 60% following
the instructions on the antifreeze
container.
When putting the cap on the reser- voir tank, line up the arrow on the
cap and the arrow on the tank. Fail-
ure to follow this can result in cool-
ant leakage.

100
76G-74E
Coolant Replacement
Trust this job to your Maruti Suzuki
Authorised Workshop.
76G-09-013
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76G-09-014
It is dangerous to remove the radia-
tor cap when the water temperature
is high, because scalding fluid and
steam may be blown out under pres-
sure. Wait until the coolant tempera-
ture has lowered before removing the
cap.
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Engine coolant is harmful or fatal if
swallowed or inhaled. Do not drink
antifreeze or coolant solution. If swal-
lowed, do not induce vomiting. Imme-
diately contact a poison control center
or a physician. Avoid inhaling mist or
hot vapors. If inhaled, expose yourself
to fresh air. If coolant gets in eyes,
flush eyes with water and seek medi-
cal attention. Wash thoroughly after
handling. Solution can be poisonous to
animals. Keep out of the reach of
children and animals.9-17INSPECTION AND MAINTENANCE

10376G-74E
76G-09-020
ALTO K10EXAMPLE
To access the spark plugs,
For Alto
1. Disconnect the coupler while pushing the
release lever,
2. Remove the bolts, and
3. Pull the spark plug boots.
For Alto K10
1. Unclamp and remove the air cleaner case.
2. If necessary, disconnect the coupler (1) while pushing the release lever.
3. Remove the ignitor bolts.
4. Pull the spark plug boots out.
CAUTION
76G-09-021
Spark Plug gap "a"
Alto - 0.85 ± 0.5 mm
Alto K10 - 1.0 ± 0.05 mm
INSPECTION AND MAINTENANCE
9-20
ALTO
EXAMPLE When disconnecting the spark plugcables, pull on the boot, not on the
cable itself. Pulling on the cable can
damage it.
When installing the spark plugs, screw them in with your fingers to
avoid stripping the threads. Tighten
with a torque wrench to :
Alto - 13.0–22.0 N-m (1.3–2.2 kg-m,
9.4–15.9 lb-ft)
Alto K10 - 25 N-m (2.5 kg-m, 18.0
lb-ft).
Do not allow contaminants to enter
the engine through the spark plug
holes when the plugs are removed.
Never use spark plugs with the
wrong thread size or length.
CAUTION
When replacing spark plugs, you
should use the brand and type
specified for your vehicle. For the
specified plugs, refer to the
“SPECIFICATIONS” section at the end
of this book.NOTE:
When installation, make sure the wires,couplers, sealing rubber of top cover and
washers, are correctly returned in place.

104
76G-74E
INSPECTION AND MAINTENANCE9-21NOTE:If you experience some firing problem of
spark plugs, such as, hard engine-starting,misfire etc., the cause may be located notonly on spark plugs but also on deteriorated
ignition wiring (generally, used for more than80,000 km or five years). If spark plugreplacement does not solve the problem,
have the ignition wiring and other ignitionsystem inspected by your MARUTI SUZUKIdealer.
76G-09-022
BRAKESBrake Fluid
Check the brake fluid level by looking at the
reservoir in the engine compartment. Check
that the fluid level is between the “MAX”
and “MIN” lines. If the brake fluid level is
near the “MIN” line, fill it up to the “MAX”
line with MARUTI GENUINE brake fluid.
Failure to follow the guidelines below
can result in personal injury or
serious damage to the brake system.
If the brake fluid in the reservoir drops below a certain level, the
brake warning light on the
instrument panel will come on (the
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76G-09-023
EXAMPLE EXAMPLE
FUEL FILTER REPLACEMEMTTrust this replacement job to your MARUTI
SUZUKI authorised workshop.

10576G-74E
parking brake must be fully
disengaged with ignition switch in
"ON" position). Should the light
come on, immediately ask your
MARUTI SUZUKI dealer to inspect
the brake system.
A rapid fluid loss indicates a leak in
the brake system which should be
inspected by your MARUTI SUZUKI
dealer immediately.
Brake fluid can harm your eyes and
damage painted surfaces. Use
caution when refilling the reservoir.
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76G-09-024
INSPECTION AND MAINTENANCE
9-22
Do not use any fluid other than
MARUTI GENUINE brake fluid. Do
not use reclaimed fluid or fluid that
has been stored in old or open
containers. It is essential that
foreign particles and other liquids
are kept out of the brake fluid
reservoir.
The brake fluid should be replaced
every two years or 20,000 km.NOTE: With disc brakes, the fluid level can beexpected to gradually fall as the brake padswear.
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76G-09-025
Brake Pedal
Check if the brake pedal stops at the
regular height without "spongy" feeling when
you depress it. If not, have the brake
system inspected by your MARUTI SUZUKI
dealer. If you doubt the brake pedal for the
regular height, check it as follows:With the engine running, measure the
distance between the brake pedal and floor
silencer mat when the pedal is depressed
with approximately 30 kg (66 lbs) of force.
The minimum distance required is 110 mm
(4.3 in). Since your vehicle’s brake system
is self-adjusting, there is no need for pedal
adjustment. If the pedal to floor wall distance
as measured above is less than the minimum
distance required, have your vehicle inspected
by your MARUTI SUZUKI dealer.
76G-09-026