BYD F3DM. Service Manual — part 12

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Note:
(1) Meaning of the symbols in the table
I = check, correct or replace when necessary; R = replace, change or lubricate; C = clean.
(2) Shorten the time for replacing engine oil filter according to the dirty degree of the gasoline engine.
(3) Rigorous using conditions indicate:
Often drive the car in dusty areas or expose the car long in salty air.

y

Often drive the car on the rugged road, road full of water or mountain road.

y

Drive in the cold areas.

y

The engine runs idle at the same place for a long time or the car often runs for a short distance in cold seasons.

y

Use the brake frequently and often slam the brake.

y

Often use the car as a tractor-trailer. Use the car as a taxi.

y

Above 32℃, drive the car in the crowded urban area for more than 50% running time.

y

Above 30℃, drive the car at 75 m/hour or a higher speed for more than 50% running time.

Overloaded running

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Chapter 7

Section 7-1

—————————————————————————————

Self-maintenance

Foreword

Fuse location . . . . . . . . . . … 181

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Appearance of Front Engine Compartment

1. Clutch fluid tank
2. Power distribution box 3#
3. Gasoline engine
4. Driving electric motor controller
5. Brake fluid tank
6. DC and air conditioner controller
7. Power distribution box1#
8. Power distribution box 2#
9. Motor cooling radiator
10. Electric motor cooling radiator
11. Overflow tank

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Fuse Location

Please refer to “Fuse and Relay” in
Chapter 8 for names of electrical
devices protected by each fuse.

Notes of Do-it-yourself maintenance
In case of doing maintenance by
yourself, be sure to follow the correct
procedures in this section.
Please note that incorrect or
incomplete maintenance may result in
operating problems.
This section makes explanations only
on maintenance operations that are
relatively easy to do on your own.
As said in chapter 6, there are still a
number of items that must be done
by a qualified technician with special
tools.
Utmost attention should be paid to
avoiding accidental injuries when
working on your vehicle. Precautions
below should be especially careful to
observe.

Warning

When the DM system is operating
with the “OK” indicator on, the
engine is automatically started in
some case. When you inspect the
engine compartment, be sure to
press the “POWER” switch to the
“OFF” mode.
Keep your hands, clothes and
tools away from the moving fans
and drive belt of engine, when the
engine is on(You’d better tie up long
hair and remove accessories such
as finger ring, watch, necktie and so
on to avoid any injury.)

y

Engine compartment —engine,

radiator, exhaust pipe, hold-up
vessel of power steering fluid and
spark plug cover— will be hot
after driving. Do not touch them,
as it may cause burns. The

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temperature of engine oil, fluid
and spark plug may also be very
high

y

If the engine is very hot, do not

remove the radiator cover or
screw off the drain plug to avoid
burning yourself.

y

Do not leave any flammable

material in the engine
compartment such as paper and
cloth.

y

Be sure that the DM system is

in the “OFF” mode if you work
near the electric cooling fans or
radiator grille. With the ignition
on, the electric cooling fans will
automatically start to run if the
engine coolant temperature is
high and/ or the air conditioning
is on.

y

Handle the storage battery with

special care, as it contains
poisonous gas and corrosive
sulfuric acid.

y

Use eye protection whenever you

work on or under your vehicle
where you may be exposed to
flying or falling material, fluid
spray, etc.

y

U s e d e n g i n e o i l c o n t a i n s

potentially harmful pollutants,
which may cause skin disorders
such as skin inflammation or skin
cancer, so care should be taken
to avoid prolonged and repeated
contact with it. To remove used
engine oil from your skin, wash
thoroughly with soap and water.

y

Do not leave used oil within the

reach of the children.

y

Dispose of used oil and filter only

in a safe and acceptable manner.

Do not dispose of used oil and
filter in household trash, in sewer
or onto the ground. Refer to BYD
authorized service station for
recycling or disposing methods.

y

Take care when filling the brake

fluid reservoir because fluid can
harm your eyes and damage
painted surfaces. If fluid gets in
your eyes, flush your eyes with
clean water immediately. If you
still feel uncomfortable with your
eyes, go to the doctor.

y

Basic check is needed before

driving, or it may cause an
accident.

y

If the maintenance is not applied

or properly applied, it may cause
serious damage to you and your
vehicle.

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Warning

y

R e m e m b e r t h a t b a t t e r i e s

and ignition cable carry high
currents or voltages. Be careful
of accidentally causing a short
circuit.

y

If you spill the fluid, be sure

to wash it with water to avoid
damaging the components or
paint.

y

Do not allow dirt or anything else

to fall through the spark plug
holes.

y

Do not pry the outer electrode

of spark plug against the central
electrode.

y

Use only spark plug of special

type, as using other spark plugs
may cause engine damage, loss
of performance or radio noise.

y

If the brake fluid overflows, you

must wash it with water, to avoid
damaging the components or
paint finish.

y

Do not drive with the air filter

removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment

y

Do not scratch the glass surface

with the wiper frame.

y

When closing the hood, check

to make sure that you have not
forgotten any tools, rags, etc.

Location of Jack

Front

Rear

When jacking up your vehicle with
the jack, position the jack correctly as
shown in the illustrations.

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Warning

When jacking, be sure to observe
the following to reduce the possibility
of personal injury:

y

Avoid breathing in exhaust gas

from the engine, which may
contain carbon monoxide that is
colorless and odorless and may
cause consciousness loss and
even death.

y

Do not put any part of your body

under the vehicle supported by
the jack. Personal injury may
occur.

y

Do not start or run the engine

while your vehicle is supported
by the jack.

y

Stop the vehicle on a level firm

ground, firmly set the parking
brake and put the transaxle in “P”.

● Make sure the jack is placed
on the right jack point. Raising
the car with jack improperly
positioned may damage the car
or allow the car to fall off the jack,
which may result in personal
injuries.

y

Do not stay under the car when it

is only lifted up by a jack. Please
apply a car supporting bracket.

y

Do not lift the car up if there is

somebody in it.

y

When raising the vehicle, do not

place any objects on top of or
underneath the jack.

Notice

Make sure to place the jack
correctly, or your vehicle may be
damaged.

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Chapter 7

Section 7-2

—————————————————————————————

Self-maintenance

Engine and Chassis

Check Engine Oil Level . . . . . . . . … 186
Check Antifreeze Fluid Level . . . . . . . 187
Check Radiator and Condenser . . . . . . … 188
Check Tire Inflation Pressure . . . . . . . 189
Check and Replace Tire . . . . . . . . 190
Replace Tires . . . . . . . . . . … 191
Tires Rotation . . . . . . . . . . … 191
Replace Wheels . . . . . . . . . . 193
Precautions on Aluminum Wheel . . . . . . … 193

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Check the Engine Oil Level

Low level

Full level

Add oil

O.K.

Too full

Turn off the ignition switch and check
the oil level on the dipstick.
To get a true reading, make sure the
vehicle is on level ground and preheat
the engine. Wait several minutes after
shutting down the engine.
Pull the dipstick out, place a piece of
fabric at its end and wipe it clean.
Insert the dipstick again, push it in as
far as it will go, or the reading will not
be correct.
Pull the dipstick out and look at the oil
level while holding a rag under the end.

WARNING

Be careful not to touch the hot
exhaust manifold.

NOTICE

Be careful not to drop the engine oil
on the vehicle components.

If the oil level is below or little higher
than the lower hole, add oil of the
same type as already in the engine.
Remove the engine oil fill cap and
add engine oil in small quantities at a
time, checking the dipstick. You are
recommended to use a funnel when
adding oil.
If the oil level is between the lower and
upper holes, the oil level is acceptable.
When the level reaches within the

correct range, install the fill cap hand-
tight.
Oil quantity, L (qt.,lmp.qt.):
1.5(1.6,1.3)

NOTICE

y

Be careful not to spill the engine

oil on the vehicle components.

y

Avoid overfilling or the engine

may be damaged.

y

Check the oil level with dipstick

again after adding the engine oil.

Engine Oil Selection
Only use lubricating oil approved by
BYD-authorized dealer or equivalents
to satisfy the following grade and
viscosity.
Engine Oil Grade for Gasoline Engine:
SAE Viscosity Grade:
SAE 5W—30 above -30℃

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SAE 15W—40 above -15℃
API Grade: SG or above
Amount: 3L (liter)
Recommended viscosity (SAE):

Predicted temperature range prior to
next oil change

In extremely cold weather, SAE 10W-
30 oil or oil with higher viscosity may
cause difficulty to start, so SAE 5W-30
oil is highly recommended.

API Service Symbol

ILSAC Certification Mark

Oil Identification Mark
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located
anywhere on the outside of the
container.
The top portion of the label shows the
oil quality by API (American Petroleum
Institute) designations such as SL.
The center portion of the label shows

the SAE viscosity grade such as 10W-
30.“Energy-Conserving” shown in the
lower portion, indicates that the oil has
the oil fuel-saving capabilities.

The ILSAC (International Lubricant
S t a n d a r d i z a t i o n a n d A p p r o v a l
Committee) Certification Mark is
displayed on the front of the container.

Check Antifreeze Fluid Level

WARNING

The antifreeze fluid heat storage
tank reaches high temperature
inside. It is dangerous if hot
antifreeze is discharged when
replacing. For replacement of the
antifreeze fluid, contact your BYD
authorized dealer.

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Look at the transparent antifreeze fluid
tank when the engine is cold to see
if it is between the “MAX” and “MIN”
lines on the tank. If the level is low,
add antifreeze fluid. (For the antifreeze
fluid type, see “Antifreeze fluid type
selection” described below.)
The antifreeze fluid level in the tank
will vary with the temperature of the
engine. However, if the fluid level is on
or below the “MIN” line, add antifreeze
fluid. Bring the level up to the “MAX”
line.
If the antifreeze fluid level drops within
a short time after replenishing, , there
may be a leak in the system. Visually
check to the radiator, hoses, radiator
cap, drain cock and water pump.
If you couldn’t find any leak, have your
BYD authorized dealer test the cap
pressure and check for leaks in cooling
system.

WARNING

To avoid personal injury, if the steam
comes out from the front hatch, do
not open it before the steam to be
dissipated.
To prevent burning yourself, do
not remove the radiator cap when
engine is hot.

Antifreeze fluid type selection
Only use antifreeze authorized by
BYD authorized dealer. Choose and
add suitable type of antifreeze fluid
into cooling system according to
environment temperature.
Use of improper antifreeze fluid may
damage your engine system.

NOTICE

Do not use plain water alone, which
may cause damage on engine
cooling system.

Please contact BYD authorized dealer
for further details.

Check Radiator and

Condenser

If any of the above parts are extremely
dirty or you are not sure of their
condition, take your vehicle to BYD
authorized dealer.

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WARNING

To prevent burning yourself, be
careful not to touch radiator or
condenser when the engine is hot.
Do not operate by yourself to avoid
damaging the radiator or condenser.

Check Tire Inflation Pressure

Keep your tire inflation pressures at the
proper level.
For information on recommended
cold tire inflation pressure and tire
dimension, please refer to Chapter 8.

WARNING

The tire inflation pressure is 230
kpa while the spare tire inflation
pressure shall be 420 kpa.

You should check the tire inflation
pressure every two weeks, or at least
once a month. And do not forget the
spare.
Improper tire pressure may increase
gas consumption, reduce driving
comfort and tire service life, and pose
danger to road safety.
If the tire need air filling frequently,
please contact BYD authorized dealer
for a check.

WARNING

Keep your tires properly inflated.
Otherwise, the following conditions
may occur and cause an accident
resulting in serious injuries.
Low tire pressure (under inflation)

y

Excessive wear

y

Uneven wear

y

Poor handling

y

Possibility of blowouts from

overheated tire.

y

Poor sealing of the tire bead

y

Wheel deformation and/or tire

separation

y

High Tire Pressure (Over inflation)

y

Poor handlingExcessive wear of

center of tire tread

y

A greater possibility of tire

damage from road hazards.

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The following instructions for checking
tire inflation pressure should be
observed:
●Check tire pressure only when the tire
is cold. If the vehicle has been parked
for at least 3 hours and has not been
driven for more than 1.5km or 1 mile
since, you will get an accurate cold tire
inflation pressure reading.
●Tire inflation pressure gauge must be
used. The appearance of a tire can be
misleading. In addition, a few pounds’
difference may degrade ride and
handling.
●Do not bleed or reduce tire inflation
pressure after driving. It is normal for
the tire inflation pressure to be higher
after driving.
●Make sure valve cock is installed on
tire. It blocks dust, damp from entering
tire and prevent air leakage. Install a
new one if it lost.

Check and Replace Tire

Tire Tread wear indicator

Check Tire
Check the tire tread for tire wear
indicator. If the wear indicator is visible,
the tire shall be replaced.
The tire on your BYD F3DM has built-
in tread wear indicators to help you
know when the tires need replacement.
When the tread depth wears to 1.6mm
(0.06in.) or less, the indicators will
appear. If you can see the indicators in
two or more adjacent grooves, the tire
shall be replaced. The lower the tread,
the higher the risk of skidding.
The snow tires will be useless if the

tread wears down below 4mm (0.16
in.).
If there were tire damage such as cuts,
splits, cracks deep enough to expose
the fabric, or bulges indicating internal
damage, the tire should be replaced.
If a tire often goes flat or cannot be
properly repaired due to the size or
location of a cut or other damage, it
should be replaced. If you are not sure,
consult with BYD authorized dealer.
If an air loss occurs while driving, do
not continue driving with a deflated
tire. Driving even a short distance can
damage a tire beyond repair.
Any tires which are over 6 years
old must be checked by a qualified
technician even if damage is not
obvious.
Tires deteriorate with age even if they
have never or seldom been used.
This rule also applies to spare tires and

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tires in storage.

Replace Tires

When replacing a tire, only use
replacement tires and wheels that are
of the same size, load index, speed
rating and type as those originally by
BYD.
U s e o f a n y t i r e o r w h e e l n o t
recommended by BYD can affect
the safety and performance of your
vehicle, such as operability, passenger
comfort, calibration of speedometer
and odometer, ground clearance
between the car body and tire or tire
chains.

WARNING

Please follow the instructions below,
or an accident may occur resulting
in serious injuries.

y

Do not mix radial, bias belted,

or bias-ply tires on your vehicle,
as this may cause dangerous
handling characteristics resulting
in loss of control.

y

Only use tires with size

recommended by manufacturer’s ,or
it may cause dangerous handling
characteristics resulting in loss of
control.

Never replace the tire on BYD F3DM
with an used tire.
Unknown tire may cause great danger.
You are recommended to replace four
tires at one time, or at least both front

or rear tires at the same time.
See “If you have a flat tire” in Chapter
4 for change procedure.
Keep the wheels in balance when
replacing tires.
An unbalanced wheel may affect
vehicle handling and tire life. Wheels
can get out of balance with regular
use and should therefore be balanced
occasionally.

Tire Rotation

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Tire rotation diagram

Front

To equalize tire wear and extend its
service life, you are recommended to
rotate tire positions every 10,000 km.
However, the most appropriate timing
for tire rotation depends on driving
habit and road surface conditions.

WARNING

●Do not include a spare tire when
rotating the tires.

When rotating tires, check for uneven

wear and damage. Abnormal wear is
usually caused by incorrect tire inflation
pressure, improper wheel alignment,
out-of-balance wheels, or severe
braking.

Choose Tire Chain
Use the tire chains of correct size.
Regulations regarding the use of tire
chains vary according to location or
type of road, so always check the local
regulations before installing chains.
Install Tire Chain
Install the chains on the front tires
as tightly as possible. Do not use tire
chains on the rear tires. Retighten
chains after driving 0.5-1.0 km(1/4-1/2
mile).
When installing tire chain, carefully
follow the instructions of the chain
manufacturer
If wheel covers are used, they will

be scratched by the chain band, so
remove the covers before putting on
the chains.

WARNING

y

Do not exceed 50 km/h or

the chain manufacturer’s
recommended speed limit,
whichever is lower.

y

Drive carefully avoiding bumps,

holes, and sharp turns, which
may cause the vehicle to bounce.

y

Avoid sharp turns or locked-wheel

braking, as use of chains may
adversely affect vehicle handling.

y

W h e n d r i v i n g w i t h c h a i n s

installed, be sure to drive
carefully. Slow down before
entering curves to avoid losing
control of the vehicle. Otherwise
an accident may occur.

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