BYD E6. Service Manual — part 11

BYD e6A AUTO Owner's Manual

Motor and Chassis 5-7

Chaper 5

Section 2

Motor and Chassis

Service and Maintenance for Transmission Case . . ... 5-8
Check Coolant Level . . . . . . . . . . . . . ... 5-10
Check Radiator and Condenser . . . . . . . . . .. 5-10
Check Tire Pressure . . . . . . . . . . . . . ... 5-11
Check and Replace Tire . . . . . . . . . . . . .. 5-12
Tire Rotation . . . . . . . . . . . . . . . . . 5-13
Replace Wheels . . . . . . . . . . . . . . . .. 5-14
Precautions with Aluminum Wheels . . . . . . . . 5-15

BYD e6A AUTO Owner's Manual

5-8 Motor and Chassis

Replace lubricant for front drive
transmission

After running in a new transmission, drain

the lubricant in the transmission case and

refill with fresh lubricant. Unscrew the drain

bolt 1 to drain the lubricant and tighten it

again. Then unscrew the filler bolt 2 to refill

fresh lubricant. SAE80W-90 is

recommended for use; When the outside air

temperature is lower than -15 °C,

SAE75W-90 is recommended for use.

Please keep the filling amount at about 3.5L.

It is recommended to replace lubricant at

the specified service station.

Check lubricant for front drive
transmission

Check the lubricant amount in the transmission

case during daily operation. Remove the filler

plug, and touch the fluid level in the bolt hole.

The normal level should be up to the edge of the

plug hole. Otherwise, please refill fresh lubricant

until it over flows from the filler opening. Then

screw the filler plug and tighten it. Replace the

lubricant in the transmission case regularly.

To secure the quality of lubricant, wash and

clean the transmission case before

replacing lubricant.

Check the bolts outside of the transmission

for looseness or absence during daily

operation. If a bolt found is found loose,

tighten it timely; if there is any bolt missing,

reinstall it. Keep the bolt and transmission

case clean to facilitate heat dissipation.

Transmission fluid

Gear oil level

1. Drain plug

2. Filler plug

BYD e6A AUTO Owner's Manual

Motor and Chassis 5-9

Check the breather tubes on the transmission

frequently to ensure the normal performance

of these components.

If BYD original transmission fluid is not

available, you can use API certified gear oil

as substitute. For specific specifications,

please refer to Maintenance Manual or

contact BYD authorized service station.

Transmission fluid shall be replaced by

mileage or interval as specified in Periodic

Maintenance Table. The existing transmission

fluid shall be drained completely before filling

new transmission fluid.

Please contact BYD authorized service

station if you have any doubt about checking

fluid level or filling fluid inbox.

Maintenance for rear drive
transmission (if equipped)

After running in a new transmission, drain the

lubricant in the transmission case. Unscrew

the drain plug1 to drain the lubricant and

tighten it again. Then unscrew the filler plug 2

to refill fresh lubricant. ATF220 is

recommended to use. Please keep the filling

amount at about 1.5 L. It is recommended to

replace lubricant at the specified service

station.

Pay attention to check the lubricant amount in

the transmission case during daily operation.

Remove the filler plug, and touch the fluid

level in the plug hole. The normal level should

be up to the edge of the plug hole.

Otherwise,

please refill fresh oil approved by BYD until it

over flows from the filler opening. Then screw

the filler plug and tighten it

.

Replace the

lubricant in the transmission case regularly.

To secure the quality of lubricant, wash and

clean the transmission case before replacing

lubricant.

Check the bolts outside of the transmission

for looseness or absence during daily

operation. If a bolt is found loose, tighten it

timely; if there is any bolt missing, reinstall it.

Keep the bolts and transmission case clean in

order to facilitate heat dissipation.

Check the components of vent ducts on the

transmission frequently to ensure the normal

performance of these components.

BYD e6A AUTO Owner's Manual

5-10 Motor and Chassis

Check Coolant Level

Check the transparent overflow tank of the

cooling fluid when the motor is cold. If the

cooling fluid level is located between "FULL"

and "LOW" line on the tank, it is in

compliance with the requirement. If the fluid

level is low, additional cooling fluid must be

added. (Refer to section "Choose Cooling

Fluid" below for information on usable type of

cooling fluid.)

The cooling fluid level in the overflow tank

varies with the temperature of the motor. But

if the fluid level is under "MIN" line, more fluid

must be added until fluid level reaches "MAX"

line.

After adding cooling fluid, if the fluid level

drops in short period, there may be leakage in

the system. You shall conduct visual check to

radiator, hose, radiator cap, drain cock and

pump.

If visual check cannot find any leakage,

please contact BYD authorized service

station to check cap pressure and whether

there is leakage in the cooling system.

Tips

To avoid scorching, do not remove the

radiator cap when the motor is hot.

Choose Cooling Fluid

Only use cooling fluid authorized by BYD

authorized service station. Choose and add

suitable type of cooling fluid into cooling

system according to environment

temperature.

Improper coolant could damage the cooling

system, such as motor.

NOTICE

Do not over use water, which may damage

motor cooling system in winter.

For more detailed information, please contact

BYD authorized service station.

Check Radiator and Condenser

If radiator or condenser becomes very dirty or

you can not determine their status, please

send the vehicle to BYD authorized service

station.

Tips

To avoid scorching, do not touch radiator or

condenser when motor is hot.

NOTICE

Do not remove radiator or condenser by

yourself to avoid damage.

BYD e6A AUTO Owner's Manual

Motor and Chassis 5-11

Check Tire Pressure

Maintain proper pressure in tires.

For information on recommended cold tire

pressure and tire dimension, please refer to

Section 5-4.

Tips

The spare tire inflation pressure should be

420 kpa as required

You shall check the tire pressure every two

weeks, or, at least, every month. Spare tire

pressure shall also be checked.

Improper tire pressure may increase gas

consumption, reduce driving comfort, tire

service life, and pose danger to road safety.

If the tires need air filling frequently, please

contact BYD authorized service station for a

check.

Tips

Please keep standard tire inflation

pressure. Otherwise, the following

conditions may happen, and even cause

serious injury accidents.

Low tire pressure (insufficient air filling) --

● Excessive wear

● Abnormal wear

● Difficulty in operation

● Air leakage due to overheat of tires

● Deteriorated sealability at the edge of tire

● Deformation of wheel and/or

detachment of tire and wheel

High Tire Pressure (excessive air filling) --

● Difficulty in operation

● Excessive wear of center of tire tread

● Increased possibility that hard road may

do damage to tire

Follow the instructions below when checking

tire pressure:

● Check tire pressure only when the tire is

cold. The vehicle must be parked for over

3 hours, or driving no longer than

1.5 km, you may measure the exact tire

pressure readings.

● Tire pressure gauge must be used.

Judgment of tire pressure based on

experience may lead to severe error. In

addition, several pounds difference in tire

pressure may reduce driving operability

and comfort.

● Do not release air in tire or reduce tire

pressure after driving. It is normal that tire

pressure is higher after travel.

● Make sure valve cap is installed on tire. It

blocks dust, damp from entering tire and

prevents air leakage. Install a new one if

the valve cap gets missing.

BYD e6A AUTO Owner's Manual

5-12 Motor and Chassis

Check and Replace Tire

Check Tire

Check tread wear according to tire wear

indicator If the wear indicator is visible, the

tire shall be replaced.

Tire wear indicator is embedded in the tire of

BYD e6A to indicate when to replace it. When

wear depth reaches 1.6 mm or less, the wear

indicator will be exposed. If two or more wear

indicators in contiguous tread grooves are

visible, the tire must be replaced. The

shallower the tread, the greater danger of tire

skid.

If the tread wears down 4 mm or more on tires,

the effectiveness of tires is lost when driving

on snow.

In case of a cut, rupture or crack exposing the

cord fabric or abnormal tire inflation, it means

there is internal damage in the tire and the tire

must be replaced.

In case of frequent air leakage or cut or other

damage unrepairable due to the severity or

position, the tire must be replaced. When you

are not sure about tire conditions, please

contact BYD authorized service station.

If air leakage occurs on the road, stop driving

immediately. Even a small travel after air

leakage may cause permanent damage to the

tire.

After 6 years' use, the tire, even if it has no

obvious damage, must be inspected by

qualified technician.

The tire may deteriorate due to aging even it

has not been used heavily.

This rule also applies to spare tires and tires

in storage.

Replace Tires

Only use a tire with the same dimension and

structure, and the same or higher load

capacity to replace the tire installed on the

car.

Any difference in dimensions and structure

may have serious effect on operability,

passenger comfort, calibration of

speedometer / odometer, ground clearance

and clearance between vehicle body and tire

or tire chain.

Tips

Please follow the instructions below. Or it

may result in severe injury.

● Never use a combination of radial ply

tire, bias belted tire and diagonal-ply tire

on the same vehicle, or it may lose

operability in driving, leaving the driver

in great danger.

● Only use tires with dimensions

recommended by the manufacturer. Or

the car may lose control in driving.

Tread wear indicator

BYD e6A AUTO Owner's Manual

Motor and Chassis 5-13

Never use old tires on BYD e6A.

Tires from unknown origin may pose great

danger.

You are recommended to replace four tires at

one time, or at least, you shall replace two

front/rear tires at the same time.

For steps of replacing tire, please refer to

"When Tire Has Air Leakage" in Chapter 3.

Keep the wheels in balance after replacing

tires.

Unbalanced tire may pose adverse effect on

auto operability and tire service life. The tire

may lose balance during normal use. As a

result, irregular check is required to keep the

tire in good balance.

Tire Rotation

To equalize tire wear and extend its service

life, you are recommended to rotate tire

positions every 10,000 km. But the

optimum time to rotate tires depends on

driving habit and road conditions.

Tips

Do not perform tire rotation for spare tire.

Before tire rotation, check for uneven wear or

damage. Improper tire pressure and wheel

alignment, unbalanced wheel and frequent

braking may lead to abnormal tire wear.

Choose Tire Chain

Use tire chain with proper dimension.

The rule to choose tire chain varies with

locations and road conditions. Please refer to

local rule before choosing tire chain.

Tire Rotation Illustration

Front

BYD e6A AUTO Owner's Manual

5-14 Motor and Chassis

Install Tire Chain

When possible, tire chain must be installed on

front wheels. Do not install tire chain on rear

wheels. Tighten tire chain again after driving

for 0.5 - 1.0 km.

Follow strictly the instruction from the

manufacturer when installing tire chain.

If wheel housing is installed on the car,

remove it before installing tire chain,

otherwise it may be damaged by tire chain.

Tips

● When tire chain is installed, the driving

speed must not exceed 50km/h or the

speed limit specified by the

manufacturer, whichever is lower.

● Drive carefully when tire chain is

installed and avoid protrusions, holes

and sharp turns in the road, which may

jolt the vehicle.

● When tire chain is installed, avoid sharp

turn or braking with wheels locked,

which may pose adverse effect to car

operability.

● When tire chain is installed, slow down

the car before turning to prevent losing

control of the car, which may cause

accident.

Replace Wheels

When to Replace Wheels

When the wheel has damage such as
buckling, cracking or severe corrosion, it must
be replaced.

If damaged wheel is not replaced timely, the

tire may detach from the wheel or the car may

lose control.

Choose Wheels

Only replace the wheel installed on the car

with a wheel with the same load capacity,

diameter, rim width and offset.

BYD authorized service station can replace

wheels correctly.

Wheels with different dimensions and

structure may have serious effect on

operability, service life of wheels and

bearings, cooling of brake, calibration of

speedometer and odometer, brake

performance, headlight alignment, bumper

height, ground clearance and clearance

between car body/chassis and tire /tire chain.

Do not replace the wheel with a used wheel,

which may have undergone treatment or long

mileage, getting the vehicle into trouble

without prior warning. Do not use a wheel

which is repaired after buckling, as it may

have structural damage.

Tips

Do not use a wheel with specifications other

than that recommended by the

manufacturer, or the car may lose control in

driving, which may result in severe injury or

death.

BYD e6A AUTO Owner's Manual

Motor and Chassis 5-15

Precautions on Aluminum Wheel

● It is recommended to use aluminum

wheels depending on corresponding

specifications. For the detail information,

please refer to the next chapter.

● For a vehicle with aluminum wheels, the

nuts on the wheels must be checked after

the first 1600 km travel to make sure they

remain tight.

● After tires are rotated, repaired or

replaced, the nuts on the wheels must be

checked after the first 1600 km travel to

make sure they remain tight.

● Do not damage the wheels when using

tire chain.

● Use only wheel nuts and wrenches

designed for use with your aluminum

wheels in the in-vehicle tools.

● When adjusting wheel balance using tire

chain, please use the counter balance,

plastic mallet or rubber mallet specified by

BYD service station.

● As with all autos, aluminum wheels shall

be checked regularly, and replaced if any

damage.

BYD e6A AUTO Owner's Manual

5-16 Motor and Chassis

BYD e6A AUTO Owner's Manual

Electric Appliance 5-17

Chapter 5

Section 3

Electric Appliance

Check Battery Status . . . . . . . . . . . . . .. 5-18
Check and Replace Fuses . . . . . . . . . . . .. 5-20
Add Washer fluid . . . . . . . . . . . . . . . . 5-21
Replace Bulb . . . . . . . . . . . . . . . . ... 5-22

BYD e6A AUTO Owner's Manual

5-18 Electric Appliance

Check Battery Status
Precautions

Tips

Precautions on Battery

The battery produces flammable and

explosive hydrogen during operation.

● When using tools, prevent the battery

from generating spark.

● Do not smoke or use matches near

battery.

Electrolyte contains toxic and corrosive

sulphuric acid.

● Prevent electrolyte from touching eye,

skin or clothing.

● Do not drink electrolyte by mistake.
● Wear eye protector when working near

battery.

● Keep children away from battery.

Check Battery Appearance

Check whether battery and its terminal is

corroded, loose, cracked or has loose fixture.

a. If battery is corroded, clean it with mixture

liquid of soda and warm water. Apply

grease lubricant on the outer surface of

terminals to prevent further corrosion.

b. If terminals are loose, tighten the nuts of

the clamps.

Emergency Treatment

● When electrolyte enters eyes,

immediately wash eyes with running

clean water and then go to hospital. If

possible, clean the affected area with

sponge or cloth soaked in water on the

way to the hospital.

● When electrolyte touches skin,

immediately wash the affected area

thoroughly with clean water. If you feel

burning or pain, go to hospital

immediately.

● When electrolyte is splashed on your

clothes, it may penetrate and touch the

skin. Please take off the clothes with

electrolyte immediately, if necessary,

treat it as per the previous method.

● If you drink battery electrolyte by

mistake, you must drink a lot of water

or milk immediately. Milk containing

magnesia, uncooked egg and plant oils

are recommended to be eaten

immediately. You must go the hospital

for emergency medical treatment.

Electrode terminals

Battery
pressing plate

Earth wire harness

BYD e6A AUTO Owner's Manual

Electric Appliance 5-19

c. Tighten the fixture properly to allow the

battery fixed on proper place. Tighten the

fixture too much may damage the battery

box.

NOTICE

◆ Make sure motor and all auxiliary

devices are turned off before

maintenance of the battery.

◆ Before checking the battery, remove

grounding wire on negative terminal

(with "-" mark) first; after completion of

service, connect it at the last step.

◆ Do not connect the positive and

negative terminals of the battery, to

avoid short circuit.

◆ When cleaning the battery, prevent any

liquid from entering it.

Check 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

◆ Charging the battery without

disconnecting the wires on it may

seriously damage ECU and other

electrical devices on the car. Remove

the battery wires first before connecting

the battery to charger.

◆ When motor is not running, using

electrical devices for a long time may

cause over discharge of the battery,

which may lead to difficulty in starting

the vehicle or even permanent damage

to the battery.

◆ Before leaving the car, make sure the

doors are closed and all electric

appliances, such as lights, are turned

off.

Tips

When electrolyte runs low in the battery,

replace it with a new one and do not add

electrolyte by yourself.

BYD e6A AUTO Owner's Manual

5-20 Electric Appliance

Check and Replace Fuses

A Type

B Type

C Type

Good

Burnt

Burnt

Good

Good

Burnt

BYD e6A AUTO Owner's Manual

Electric Appliance 5-21

If the headlights or other electric devices do

not work, please check the fuses. When

necessary, replace the fuses.

For information on location of fuses, refer to

section 5-1"Location of Fuses".

Turn off power switch and other

malfunctioning devices. Pull out the fuses

with potential malfunction vertically and check

them.

Find out which fuse has trouble. Circuit name

of each fuse is indicated on cover of the fuse

box. See Section 5-4 for control function of

each circuit.

Use an extraction tool to pull A type fuse out.

If you are not sure whether the fuse is burnt

out, replace it with a good one.

If the fuse is burnt out, insert a new fuse into

the fuse socket.

Only install a fuse with amperage specified on

the fuse box.

If there is no spare fuse in emergency

situation, you can pull out "29. Indoor Light"

fuse, which is not essential in driving, and use

it as a substitute for a fuse with the same

amperage.

If there is no fuse of the same amperage, you

should choose a fuse with lower amperage;

try to get a fuse with the amperage as close to

the rated amperage as possible. If you use a

fuse with lower amperage, it may be burned

out again, but this doesn't mean the vehicle

has a problem. You must install a proper fuse

as soon as possible, and put back the

substitute fuse.

It is recommended that you keep a set of

spare fuses on the vehicle for emergency

use.

If a new replaced fuse is burnt out

immediately, the electrical system may have

problem. Contact BYD service station for a

check as soon as possible.

Add Cleanser

If the washer fluid does not work, the washer

fluid tank may have been empty. Check the

washer fluid level on the content gauge. If the

level is below "LOW" mark, you must add

washer fluid.

Tips

Never use a fuse with higher amperage

than the rating amperage or use any other

objects to replace the fuse, otherwise it may

cause serious damage and may lead to fire

BYD e6A AUTO Owner's Manual

5-22 Electric Appliance

Before Adding Cleanser

Pull out washer fluid funnel and hang it on the

motor hood support.

Water can be used as washer fluid. But in

cold region where the temperature is below

zero degrees, you must use washer fluid with

an anti-freeze agent. It is available in BYD

authorized service stations and most auto

part stores. For the mixing ratio of water and

anti-freeze agent, please refer to

manufacturer's instructions.

Put the funnel back in place after filling the

washer fluid tank.

Replace Bulb

The following figures shows the method to

remove the bulbs. Make sure the power
switch and light switches are turned off when

replacing bulbs. Use bulbs with rated power
shown in the table below:

Parking light and rear parking light consists of
a group of LEDs. When the number of burnt

out LED affects the vehicle's compliance with
local laws, please send the vehicle to BYD

authorized service station to replace bulbs.

Tips

● Do not replace bulb when it is hot to

avoid burning.

● The halogen bulb is filled with

pressurized gas, please be particularly

careful. If the bulb is scratched or falls to

ground, it may explode or crack. Only

hold the bulb on its plastic or metal part.

Do not touch the glass part of the bulb

with bare hands.

When traveling in rain or when the light lens is

wet after washing, the inside of lamp lens of

an external light such as a headlight will

temporarily fog. As with fog on the windshield

in rainy days, the fog inside the light lens is

due to the temperature difference between

the inside and the outside of light lens, and

isn't a problem. But if there is water droplet or

water pool in the light lens, please contact

BYD authorized service station.

Headlight

NOTICE

Only the bulbs specified in the following table

can be used.

Bulb

W

Type

Headlight (low beam)

55

H7

Headlight (high beam)

60

HB3

Front fog light

55

H3

Parking light

5

W5W