BYD F3DM. Service Manual - part 13

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Replace Wheels

When to Replace Wheels
When the wheel has damage such as 
bending, crack or severe corrosion, it 
shall be replaced. 
If damaged wheel is not replaced 
timely, the tire may slip off the wheel or 
cause loss of handling control.

Wheel Selection
When  replacing  wheels,  make  sure 
that the wheels are replaced by ones 
with the same load capacity, diameter, 
rim width and offset.
Correct replacement wheels are 
available at BYD authorized dealer.
A wheel of a different size or type 
may cause serious affect on handling, 
wheel and bearing life, brake cooling, 
speedometer/odometer  calibration, 
stopping ability, headlight aim, bumper 
height, vehicle ground clearance, and 

tire or tire chain clearance to the body 
and chassis. 
Do not replace the wheel on your 
vehicle with a used tire as they 
may have been subjected to rough 
treatment or high mileage and could 
fail without warning. Also, bent wheels 
which have been straightened may 
have structural damage and therefore 
should  not  be  used.  Never  use  an 
inner tube in a leaking wheel which is 
designed for a tubeless tire.

WARNING

Do not use a wheel of which the 
size is not recommended by the 
manufacturer, or the vehicle may 
losing control and cause serious 
injury or death.

Precautions on Aluminum 

Wheel 

●You are recommended to use 
aluminum wheels with correct 
specifications; for specific parameters, 
please refer to chapter 8. 
●When  installing  aluminum  wheels, 
check that if the wheel nuts are tight 
after driving your vehicle the first 
1600km (1000 miles).
●  If  you  have  rotated,  repaired,  or 
changed your tires, check that the 
wheel nuts are still tight after driving 
1600 km (1000 miles).
● When using tire chains, be careful 
not to damage the aluminum wheels.
●Only use BYD wheel nuts and wrench 
designed for your aluminum wheels.
●When  balancing  your  wheels, 
use only BYD balance weights or 
equivalent  and  a  plastic  or  rubber 
hammer. 

!

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●As  any  wheel,  periodically  check 
your aluminum wheels for damage. If 
damaged, replace immediately.

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Chapter 7

Section 7-3 

—————————————————————————————

Self-maintenance

Electric Appliance

Check Auxiliary Battery Status …………………………………… 196
Check and Replace Fuses ……………………………………… 199
Add Washer Fluid ………………………………………………… 201
Replace Bulb ……………………………………………………… 201

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Check Auxiliary Battery Status

The auxiliary battery is located behind 
the rear seat backrest, when checking 
it, you have to cut off the emergency 
maintenance switch and 
Open the luggage compartment shield.

 Precautions

WARNING

Precautions on auxiliary battery
The auxiliary battery produces 
flammable and explosive hydrogen 
gas. 

 

y

Do not cause a spark from the 

battery with tools.

 

y

Do not smoke or light a match 

near the battery. 

The electrolyte contains poisonous 
and corrosive sulfuric acid.

 

y

Avoid contact with eyes, skin or 

clothes.

 

y

Do not drink electrolyte by 

mistake. 

 

y

Wear protective safety glasses 

when working near battery. 

 

y

Keep children away from battery.

EMERGENCY TREATMENT

 

y

If electrolyte gets in your eyes, 

flush your eyes with clean water 
and get immediate medical 
attention. If possible, continue 
to apply water with a sponge or 
cloth on the way to hospital.

 

y

If electrolyte gets on your skin, 

thoroughly wash the contact area. 
If there is any pain or burn, get 
medical attention immediately.

 

y

If electrolyte gets on your clothes, 

there is a possibility of its 
soaking through to your skin, so 
immediately take off the exposed 
clothing and follow the procedure 
above, if needed.

 

y

If you accidentally swallow 

electrolyte, drink a large quantity 
of water or milk. Follow with milk 

!

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of magnesia, beaten raw egg 
o r   v e g e t a b l e   o i l .  T h e n   g o 
immediately for emergency help.

Check Auxiliary Battery Appearance

Electrode contact

Battery-pressing 
board

Earth wire

Check whether the battery and its 
terminal is corroded, loose, cracked or 
has loose hold-down clamp.
a. If the battery is corroded, wash it 
off with a solution of warm water and 
baking soda. Coat the outside of the 

terminals with grease to prevent further 
corrosion.
b. If terminal is loose, tighten its clamp 
nuts; but do not overtighten.
c. Tighten the hold–down clamp only 
enough to keep the battery firmly in 
place. Overtightening may damage the 
battery case.

NOTICE

 

y

Make sure the power system and 

all accessories are cut off before 
performing maintenance. 

 

y

When  checking  the  battery, 

remove the ground cable from 
the negative terminal (“–” mark) 
first and reinstall it last.

 

y

Do not cause short circuit when 

using tools.

 

y

Make sure no solution gets into 

the battery when washing it.

Check the Internal Status of Battery
Check the internal status of the battery 
according to instructions on the outer 
shell and status indicators of the 
battery.

NOTICE

 

y

Charging the battery without 

disconnecting the wires may 
cause serious damage on ECU 
and other electrical devices on 
the vehicle.  Remove the battery 
wires first before connecting the 
battery to charger.

 

y

When the engine is not running, 

use electrical devices for a long 
time may cause over discharge 
of the battery, which may lead to 
difficulty to start the car or even 
permanent damage to the battery. 

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y

Do not use electrical devices, 

such as audio system, light 
system, for a long time when the 
engine is not running.  

 

y

Before leaving the vehicle, make 

sure the doors are closed and 
all electric appliances (such as 
lights) are turned off. 

NOTICE

Do not add electrolyte by yourself 
when replace a new battery for its 
lacking of electrolyte.

Jump start
If the auxiliary battery is run out,
the DM system can be started by 
following procedures.
All needed tools are:
1. A set of jumper cable;
2. A vehicle with 12volt auxiliary battery 
or a 12volt auxiliary battery.
You are highly recommended to call 
BYD authorized dealer for help if you 
are not sure about the procedures.
Before jump start your vehicle:
Turn off all the electrical components, 
such as climate control, audio system, 
lights .est. Turn  the  ignition switch to 
OFF, and pull the parking brake;
To avoid causing spark, make sure that 
the jumper cable connects correctly.
Procedure:
1) Remove the trunk board;
2) In order to clamp the positive and 

negative terminal easily, you should 
put the positive and negative plastic 
protective cover aside. 
3).Connect the clamp of the positive 
jumper cable to the battery positive (+) 
terminal; 
4).Connect the clamp at the other end 
of the positive jumper cable to the 
positive (+) terminal on the booster 
battery;
5).Connect the clamp of the negative 
jumper cable to the battery negative 
(–) terminal;
6).Connect the clamp at the other end 
of the negative jumper cable to the 
negative (–) terminal on the booster 
battery.
7).Turn  on  the  ignition  switch  and 
starting the DM system;
8).Once  your  vehicle  is  running, 
disconnect the clamp of negative 
cable from your vehicle, then from the 

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booster battery. Disconnect the clamp 
of the positive jumper cable from your 
vehicle, then from the booster battery.

WARNING

Keep the ends of the jumper cables 
away from each other and any metal 
on the vehicle until everything is 
disconnected. 
Do not touch the clamps of the 
jumper cables while starting the 
vehicle. Otherwise, you may cause 
an electrical short.

Any following conditions happened, 
please contact your BYD authorized 
dealer for a check:
1. The instrument cluster display still 
off when power is on.
2. The battery charging system 

fault warning light is on in the multi-
information display when power is on.
3. The power battery fault warning light 
is on when power is on.

WARNING

 

y

Make sure the clamps of the 

jumper cables connect the right 
terminal, and avoid accidentally 
touching anything except the 
right terminal.

 

y

Do not touch the clamps of the 

jumper cables while starting the 
vehicle. Otherwise, you may 
cause an electrical short.

 

y

Do not let the jumper cable 

connect the positive (+) terminal 
with the negative (–) terminal is 
connected.

WARNING

If the auxiliary battery is discharged 
with the transaxle in “P”, your 
vehicle cannot be moved unless 
the front wheels are raised. This 
is because the front wheels are 
locked by means of the parking lock 
mechanism.

Check and Replace Fuses

Fine

Blown

A Type

!

!

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Fine

Blown

B Type

Fine

Blown

C Type

If headlight or other electric 
components do not work, check the 
fuses. Replace the fuses if necessary. 
See Section 7-1 “Location of Fuses” 

for locations of the fuses. 
Turn the ignition switch and inoperative 
component off. Pull a suspected fuse 
straight out and check it. 
Find out which fuse may be causing 
the problem. The lid of the fuse box 
shows the name of the circuit for each 
fuse. See Chapter 8 for the functions 
of each circuit. 
Type A fuses can be pulled out by 
the pull–out tool. The location of the 
pull–out tool is shown in the illustration 
“Front  Engine  Compartment”  in 
Chapter 8.
If you are not sure whether the fuse is 
burnt out, replace it with a good one. 
If the fuse has blown, push a new fuse 
into the socket. 
Only install a fuse with the amperage 
rating designated on the fuse box lid. 
If there is no spare fuse in emergency 
situation, you can pull out “Interior 

light” fuse, which is not essential in 
driving, and substitute it for a fuse with 
the same amperage.
If you don’t have the same amperage, 
use one that is lower, but as close as 
possible to, the rating. If the amperage 
is lower than that specified, the fuse 
might be blown again. but this does not 
indicate anything wrong. Be sure to get 
the correct fuse as soon as possible 
and return the substitute  to its original 
socket.
You’d better purchase a set of spare 
fuses and keep them in your vehicle 
for emergencies.
 If the new fuse immediately be 
blown again, there is a problem with 
the electrical system. Contact BYD 
authorized dealer for a check as soon 
as possible.

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WARNING

 

y

Make sure the key is turned to 

LOCK before replacing the fuse.

 

y

Never  use  a  fuse  with  higher 

amperage rating, or any other 
object to replace a fuse. This 
may cause serious damage and 
possibly a fire.

Add Washer Fluid

If the washer does not work, the 

washer tank may be empty. Check the 
washer level on the content gauge. If 
the washer level is below “LOW” mark, 
you shall refill the washer.

Before Adding Washer
Pull out Washer funnel and hang it on 
the brake of front engine hood support. 
You may use plain water as washer 
fluid. However, in cold areas where 
temperatures range below freezing 
point, you have to use washer fluid 
containing antifreeze. This product 
is available at your BYD authorized 

dealer and most auto parts stores. 
Follow the manufacturer’s directions 
for how much to mix with water. 
Make sure to put back the funnel in 
place after filling the washer tank.

NOTICE

Don’t use engine antifreeze or any 
other substitutes for it will damage 
the vehicle paint.

Replace Bulb

The following illustrations show how 
to take off the bulbs. When replacing 
a bulb, make sure the ignition switch 
and light switch are off. Use bulbs with 
the wattage ratings given in the table 
below.  
Parking light and rear parking light 
consists of a group of luminous 
diodes.  When  the  number  of  burnt 

!

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out luminous diodes affects the car’s 
compliance with local laws, please 
send the car to BYD authorized dealer 
for replacing bulbs.

NOTICE

 

y

To prevent burning yourself, do 

not replace the light bulbs when 
it’s still hot

 

y

Halogen bulbs have pressurized 

gas  inside  and  require  special 
handling. They can burst or 
shatter if scratched or dropped. 
Hold  a  bulb  only  by  its  plastic 
or metal case. Do not touch the 
glass part of a bulb with bare 
hands.

The inside of the lens of exterior lights 
such as headlights may temporarily 
fog up when the lens becomes wet in 

the rain or in a car wash. This is not a 
problem because the fogging is caused 
by the temperature difference between 
the outside and inside of the lens, just 
like the windshield fogged up in the 
rain. However, if there is a large drop 
of water on the inside of the lens, or if 
there is water pooled inside the light, 
contact BYD authorized dealer.

Bulb

W

Type

Headlight (low beam)

55

H7

Headlight (high beam) 55

H1

Front fog light 

55

H3

Parking light

5

LED

Front turn signal light

21 PY21W

Side turn signal light 

5 WY5W

Rear turn signal light

21 PY21W

Backup light

21 P21W

Rear fog light

21 W21W

High mount brake light 16 W16W

Name plate light

5

W5W

Door light

5

W5W

Front interior light

5

R5W

Rear interior light

10 C10W

Luggage compartment 
light

5

W5W

Front parking light

5

W5W

Rear parking light

0.5

LED

NOTICE

Only use a bulb of the above listed 
type.

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Headlight

1. Left Headlight: remove clamp and 
take away the tube of air filter.

Remove and install the cover clamp as 
shown in the following illustration. 

Remove Clamp

Install Clamp 

2. Pull off the connector while pressing 
down the buckle. 
If the connector is too tight, shake it 
first.

3. Remove the bulb by turning it 
counterclockwise, then pull it out.

4. Install the new bulb in reverse order.
You don’t have to adjust the headlight 
after replacing the bulb. If it needed, 

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please contact BYD authorized dealer.

Front Turn Signal Light

1. Remove it by turning 
counterclockwise

2. Remove the bulb by turning 

clockwise.
The steps of installation are in reverse 
order.

Side Turn Signal Light

Front of Car

1. Push forward and remove the bulb. 

2. Remove the lamp holder by turning 
counterclockwise. 

3. Remove the bulb.
The steps of installation are in reverse 
order.
Backup light

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Remove the bulb and socket by turning 
the socket counterclockwise, and then 
pull out the bulb counterclockwise.
The steps of installation are in reverse 
order.  

Rear Turn Signal Light
The steps to replace the bulb of rear 
turn signal light are the same with 
backup light.

Rear fog light (left)

1. Remove the bulb socket from the 
fog light by turning counterclockwise.

2. Pull the bulb straight out of socket.
The steps of installation are in reverse 
order.

High Mount Brake Light

Push it forward and remove it. 

2. Remove the bulb socket by turning 
counterclockwise. 

3. Remove the bulb.
The steps of installation are in reverse 
order. 

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Name plate light

1. Remove the bulb socket by turning 
counterclockwise.

2. Remove the bulb.
The steps of installation are in reverse 
order.

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Chapter 8

—————————————————————————————

Part Specifications

Maintenance Specifications ……………………………………… 208
Fuse and Relay …………………………………………………… 209
High-voltage Cable ………………………………………………… 213

 

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Maintenance Specifications

Power Train Lubricating 
Electric engine Maintenance Parameters:

Items

Parameters

Amount of Transmission 
lubricant 

3.7   L

Amount of generator oil

1. 2  L

Amount of electric motor oil

1.6L

Amount of hydraulic oil

0.6L  (between  the  upper 
and lower limits of hydraulic 
oil tank)

Lubricant type

ATF220

Electric engine oil type

ATF220

Hydraulic oil type

Shell Tellus Arctic32

Engine Maintenance Parameters: 

Items 

L

Using amount of engine lubricant:

3 L

Gasoline Engine Oil Level: 

Items

Parameters

Apply to all the seasons for South 
and Spring, Summer and Autumn 
for North

10W-30/40

Apply to Winter for North 

5W—30

Others

SG grade or above

Cooling System

Items

L

Total Capacity

8.9

Tire Specifications and Pressure 

Original Tire

Spare Tire

Tire Specifications

205/60R16

T125/90R16 98M

Tire Pressure KPa
(kg/cm2)

230

420

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