BYD L3. Service Manual

Owner’s Manual

Engine and Chassis 7-15

If you do not replace a damaged tire, the
tire might come off the wheel and the car
might get out of control.

Wheel selection

When  replacing  wheel,  please  use  a
new  wheel  with  same  load  capacity,
diameter,  wheel  width  and  offset  as
the older one.

BYD  authorized  service  station  can
replace wheel correctly.

A wheel with different size or type might
inflict  unfavorable  effect  on  operation,
service life of wheel and bearing, cooling
of brake, speedometer/odometer setting,
braking

performance,

headlight

accuracy,  bumper  height,  distance  from
the ground, distance between tire or tire
chain and car body or chassis.

Do  not replace  with  an  old  tire.  The  old
tire  might  have  been  disposed  or  have
run for a long way and fault might occur
without  any  sign.  Likewise,  the  aligned
bent  wheel  has  damaged  structure.
Therefore, do  not use  it.  Do  not  use  an
inner tube designed for a tubeless tire in

a leaking wheel.

FRIENDLY TIPS

As it might cause a typical operation
risk and the car out of control, please
do not use a tire other than that with
size  recommended  by  the  manuf
-acturer.  Otherwise,  it  might  cause
death or severe injury.

Notes on Aluminum Tire

●  For  a  car  equipped  with  aluminum

wheel, please check to make sure
the wheel nut is tightened within the
initial 1600 km.

● If a tire is exchanged, repaired or

replaced, please check to make sure
the wheel nut is tightened after
driving for 1600 km.

● While using tire chain, take care not

to damage the aluminum wheel.

● Please use BYD wheel bolt and

spanner designed for aluminum
wheel only.

● When adjusting wheel balance with

tire chain, please use BYD balance
block and plastic hammer or rubber
hammer only.

● Just as with any other the vehicles,

please check to make sure the
aluminum wheel is not damaged. In
the case of damage, please replace
immediately.

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Owner’s Manual

Electrical Appliance Parts 7-18

Check the Battery Status

Notes

FRIENDLY TIPS

Notes on the storage battery
The

storage

battery

generates

inflammable and explosive hydrogen.
● While using a tool, do not

produce spark on the storage
battery.

● Do not smoke a cigarette or light

a match near the storage battery.

Electrolyte

contains

toxic

and

corrosive sulfuric acid.
● Do not contact your eyes skin or

clothe with electrolyte.

● Do not drink electrolyte by

accident.

● When working near the storage

battery,

please

wear

safety

goggle.

● Please keep the children away

from the storage battery.

EMERGENT MEASURES

● If electrolyte enters eyes by

accident,  please  wash  it  with
clean  water  immediately  and  go
to  hospital.  If  it  is  possible,
please wash the stained part with
sponge  or  clean  cloth  wetted
with  clean  water  while  going  to
hospital.

● If electrolyte splashes on skin,

please wash it off thoroughly. If
you feel ache or scorched,
please receive medical treatment
immediately.

● If

electrolyte

splashes

clothes,

might

penetrate

clothes to skin. Therefore, please
take

off

your

clothes

immediately. Please handle the
situation as stated above if
necessary.

● If someone drinks electrolyte by

accident, he should drink large
quantity of clean water or milk.
He

should

also

drink

milk

containing magnesium oxide,
stirred raw egg or plant oil. Then
he

should

seek

medical

treatment immediately.

Check the storage battery outside

Check  whether  there  is  corrosion,
loosened connector, flaw or loosened
pressing tool.

1.  If  the  storage  battery  has  been
corroded,  please  use  mixture  of  warm
water and baking soda to clean it. Apply
lubricant  on  connector  outside  to
prevent further corrosion.

2.  If  the  connector  is  loosened,  please
tighten  clamp  bolt.  However,  do  not
tighten it excessively.

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Owner’s Manual

Electrical Appliance Parts 7-19

c. Tighten the pressing tool to an extent
where the storage battery can be fixed.
Excessive tightening might damage the
storage battery box.

NOTES

●

Before

maintenance,

please

confirm that the engine and
accessory equipment are turned
off.

●

When examining the storage
battery,

please

remove

grounding cable off negative
connector (with “-” mark) and
reinstall it again at last.

●

Take care not to cause short
circuit when using a tool.

●

When

washing

the

storage

battery, do not have the fluid
enter the storage battery.

Check the storage battery inside

Understand inside status  of  the  storage
battery  in  accordance  with  description
on  the  crust  of  the  storage  battery  and
the storage battery indicator.

NOTES

●

Charging the storage battery
without

disconnecting

cable

might

severely

damage

electronic

control

unit

and

electric device of the car. Please
remove the storage battery cable
before connecting the storage
battery to charger.

●

If electric device of the car is
used for a long time while the
engine is off, the storage battery
might

discharge

excessive

electricity. Consequently, the car
might not be able to start and the
storage

battery

might

damaged permanently.

●

Do not use electric device for a
long time while the engine is off,
for example audio system, light
system.

●

When  you  leave  the  car,  please
make  sure  that  the  car  door  is
locked  and  all  electric  devices
are turned off (such as light).

FRIENDLY TIPS

When electrolyte of the storage
battery is not enough, please replace
the storage battery instead of adding
electrolyte by yourself.

Check and Replace Fuse

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Owner’s Manual

Electrical Appliance Parts 7-20

A type

B type

C type

If headlight or other electric parts do
not work, please check fuse. If fuse is
burned, please replace it.

Fuse layout, Refer to Chapter 7-

1 “Fuse

layout”.

Turn off ignition switch and parts that
do  not  work.  Pull  out  the  fuse  in
question vertically for examination.

Determine  which  fuse  is  out  of  order.
Circuit name of each fuse is marked on
fuse  box  cover.  For  control  function  of
each circuit, please refer to chapter 8 in
the manual.

Use a pulling tool to pull out the fuse of
type A. For position of pulling tool, refer
to  19  “piece  puller”  in  figure  “engine
compartment” in Chapter 8.

If it can not be determined whether fuse
has  been  burned,  please  replace  the
fuse in question with a better fuse.

If fuse has been burned, please insert
new fuse into the socket.

Please  install  the  fuse  with  amperage
specified on fuse box cover.

If no spare fuse is available, In the case
of emergency, please pull out the fuse of
“29.  In-car  lamp”  which  is  dispensable
during ordinary driving and replace with
it, if it has the same rated amperage.

If  no  fuse  with  the  same  amperage  is
available,  please  use  fuse  with  lower
amperage  and  try  to  reach  the  rated
amperage.  If  a  fuse  with  amperage
lower  than  specified  value  is  used,  it
might be burned again, but this does not
mean any problem. Please replace with
correct  fuse  as  soon  as  possible  and
insert it into the socket.

It is recommended to purchase a set of
spare fuse and store it in the car for use
in emergency.

If  newly  replaced  fuse  is  burned  soon,  it
indicates that electric system might have
a trouble. Please contact BYD authorized
service  station  for  examination  and
repair.

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Owner’s Manual

Electrical Appliance Parts 7-21

FRIENDLY TIPS

Never  use  fuse  whose  amperage  is
higher  than  rated  value  or  anything
else.  Otherwise,  it  might  cause
severe damage and cause fire.

Add Cleanser

If a cleaner does not work, it could be
because  that  the  cleaner  overflow
kettle  might  have  become  empty.
Please  check  cleaning  mixture  level
on  level  gauge.  If  cleanser  level  is
lower  t

han “LOW”, please add

cleanser.

Before adding cleanser

Pull out the cleanser funnel and hang
it  on  support  holder  of  the  engine
hood.

Clean  water  may  serve  as  cleanser.
However,  in  a  cold  area,  when
temperature  is  below  0  degree  of
centigrade,

please

use

cleanser

containing  anti-freezing  agent.  The
product  is  available  in  BYD  authorized
service  station  and  most  automobile
parts  shop.  Refer  to  the  manufacturer
instruction for mixture ratio of water.

After adding cleanser into overflow
kettle, please put funnel back to its
original position.

NOTES

Do  not  use  the  engine  anti-freezing
agent  or  other substitute.  Otherwise,
it might damage paint layer of the car.

Replace Bulb

The  following  diagram  shows  how  to
remove  a  bulb.  When  replacing  a  bulb,
please  confirm  that  ignition  switch  and
lamp  switch  are  in  OFF  status.  Use  a
bulb  with  the same  rated  power  as  that
in the following table.

NOTES

Only  the  bulbs  specified  in  the
following table can be used.

Top-mount  stop  light,  tail  stop  light  and
rear lamp are using LED. If the number
of  burned  LED  goes  against  related
local  regulation,  please  contact  BYD
authorized  service  station  for  bulb
replacement.

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Owner’s Manual

Electrical Appliance Parts 7-22

FRIENDLY TIPS

●

In order to prevent scald, do not
replace a bulb while it is hot.

● As halogen lamp has pressurized

gas inside, please take great care.
If a bulb is scraped or falls down,
it  might  explode  or  crack.  Please
hold  plastic  part  or  metal  box  of
the  bulb.  Do  not  touch  glass  part
of the bulb.

When the car travels in a rainy day or its
rear  lamp  cover  is  dampened  after
washing  the  car,  lamp  shade  of
headlight  or  other  external  lamps  might
fog  temporarily.  Just  as  a  windshield
glass  fogs  in  a  rainy  day,  the  fogging
phenomenon  is  caused  by  temperature
difference between inside and outside of
lampshade,  which  is  not  a  malfunction.
However,  if  there  is  large  water  drops
inside  the  lampshade  or  there  is
accumulated  inside  the  lamp,  please
contact BYD authorized service station.

Voltage: 12V

Bulb

Type

Over-cu

rrent (A)

Headlight

(high beam)

4.58

Headlight (low

beam)

HB3

The front fog

light

H11

4.58

The front the

turn signal

light

PY21

1.75

Side the turn

signal light

W5W

0.41

Rear the turn

signal light

PY21

1.75

Backup light

W16W

1.3

Rear fog light

W21W

1.75

Top-mount

stop light

W16W

1.3

Number plate

lamp

W5W

0.41

Door lamp

W5W

0.41

The front

in-car lamp

R5W

0.41

Rear in-car

lamp

C10W

0.83

The trunk

lamp

W5W

0.41

The front

position lamp

W5W

0.41

Rear position

lamp

0.4

LED

0.03

Stop light

LED

0.33

Head Light

(Low beam

— high beam)

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Owner’s Manual

Electrical Appliance Parts 7-23

1. Press the tongue reed and pull off the
Headlight connector as shown in the
figure.

If the connector is tight, please shake it.

2. Rotate dust cover clockwise and
remove it.

3. Pull out ground wire and power line (if
they  are  fixed  tightly,  please  shake
them). Then, press and pull out the jump
ring and take out the bulb.

4. Replace the bulb.

Installation  procedure  is  reverse  to
removal procedure.

After replacing a bulb, it is unnecessary
to modulate light again. If it is necessary
to  modulate  light  again,  please  contact
BYD authorized service station.

Higher Beam Headlight

1. Press the tongue reed and pull off

the Headlight connector as shown
in the figure.

If the connector is tight, please shake it.

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Owner’s Manual

Electrical Appliance Parts 7-25

The Front the Turn Signal Light

1. Please press clips on both sides while
removing direction indicator connector
as shown in the figure.

If the connector is tight, please shake it.

Rotate

the

lamp

stand

counterclockwise and remove it.

Press the bulb inward and rotate it
clockwise to remove it from lamp stand
and replace bulb.

The Front Fog Light

1. Pull the clips on both sides wards and
pull down the fog lamp connector.

If the connector is tight, please shake it.

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Owner’s Manual

Electrical Appliance Parts 7-26

2. Rotate the bulb counterclockwise and
remove it.

3. Replace the bulb.

Installation procedure is reverse to
removal procedure.

After replacing a bulb, it is unnecessary
to modulate light again. If it is necessary
to modulate light again, please contact
BYD authorized service station.

Side the Turn Signal Light

The side the turn signal light is of
integrated type. If it is necessary to
replace bulb, please replace the side the
turn signal light as a whole.

1.  Use  a  straight  screw  the  driver  to  lift
one side of the side the turn signal light.

Please  wrap  a  layer  of  cotton  cloth
around  the  straight  screw  the  driver  so
as not to scrape object surface.

Rear Fog Light

1. Use a straight screw the driver to lift
the cover.

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Owner’s Manual

Electrical Appliance Parts 7-27

Please wrap a layer of cotton cloth
around the straight screw the driver so
as not to scrape object surface.

2. Press the tongue reed and pull down
the Headlight connector.

3. Rotate the lamp stand and pull it
outward to remove the lamp stand.

4. Rotate the bulb and pull it outward to
remove the bulb.

Installation procedure is reverse to
removal procedure.

Assemble Rear Lamp

Rear the turn signal light and fog lamp
bulb are replaced in the same procedure
as backup light.

Installation procedure is reverse to
removal procedure.

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Owner’s Manual

Electrical Appliance Parts 7-28

Top-mount Stop Light

1. Rotate the lamp stand of top-mount
stop light counterclockwise and pull it
out through the round hole on rear rack.

2. Pull the bulb out of the bulb stand to
replace it. If it is inconvenient, please
pull off the connector too.

Number Plate Lamp

1. Press the tongue reed and pull off the
number plate connector as shown in the
figure.

If the connector is tight, please shake it.

2. Rotate the lamp stand counte
-rclockwise and pull out the lamp stand
backward.

3. Pull the bulb out of the bulb stand to
replace it.

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Owner’s Manual

Specification of Parts 8-2

Maintenance Specification

Engine lubrication

Class of gasoline the engine oil:

SAE 5W

—30

above -30 ℃

SAE 15W

—40

above -15 ℃

API class, SG level or above.

Quantity: 3L

Specification of gear oil used for manual
transmission:

75W

—90

≥-30℃

80W

—90

≥-15℃

API class, GL-4 level or above

Quantity: (DABS15-41 series): 2.1 L

(BYD5T-14 series): 1.6 L

Specifications of DCT transmission oil:

MTF 95+EP+FM/

Castrol G 052 171

Volume: 1.7L

Cooling system

Total capacity: L

6.8L

Tire size

195/60 R15

Tire pressure, KPa (kg/cm

)

210(2.1)

Wheel bolt torque, N·m (kgf·m)

103(10.5)

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Owner’s Manual

Specification of Parts 8-4

26. Headlight fuse (40A)

27. BCM(25A)

28. Electronic injection (15A)-MT20U/2
or (30A)-M7.9.7.1

29. In-car lamp (15A)

30. Ignition switch No.2 power supply
(30A)

31. Keyless(5A)

32. Claxon (10A)

33. Warning lamp (10A)

34. Transmission motor power-supply
module TCU (30A)

35. Generator (5A)

36. Main power supply (100A)

Instrument panel

Fuse

1. ABS system (10A)

2. SRS system (15A)

3. Instrument (10A)

4. EFI constant current(15A)

5. Fuel pump (15A)

6. Luggage compartment lock (10A)

7. In-car diagnosis system (7.5A)

8. Windscreen wiper (20A)

9. Clearance lamp (15A)

10. Stop light (15A)

11. Car door (25A)

12. No.2 door window power supply (30A)

13. No.1 ignition switch power supply
(25A)

14. The front fog light (15A)

15. Rear fog light (10A)

16. Starting power (7.5A)

17. Air conditioner (10A)

18. EFI System (15A)

19. Void space

20. Headlight control system (5A)

21. Cigarette lighter (15A)

22. Warm wind (40A)

23. Rear window defroster (30A)

24. No.2 door window power supply (30A)

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BYD L3. Service Manual - part 13