BYD E6. Service Manual — part 8

BYD e6A AUTO Owner's Manual

BYD e6A Operation and Driving 2-5

NOTICE

Never add any rust inhibitor or other

additives to the cooling system, since the

additives may not be compatible with the

coolant or motor components.

Replace coolant

Clean and refill the coolant based on the time

elapsed or miles driven recommended in the

regular maintenance chart. Only use BYD

original long-life antifreeze coolant. Any use

of non-original coolant or water could result in

cooling system rusting and deposits

accumulating.

The operation of coolant draining is

performed under the vehicle. Therefore, it

should be done by an experienced technician

unless you are familiar with it and have proper

tools.

a. Adjust the power switch to ON. Make sure

the DUAL indicator lamp has been off.

b. Open the engine cabin. Confirm that the

motor, DC-DC, motor controller and

radiator have cooled down and can be

touched by hand.

c. Turn the radiator cap counterclockwise

(without pressing down), until it cannot be

turned any more. Hence, the residual

pressure in the cooling system can be

discharged completely.

d. To remove the radiator cap, turn the cap

counterclockwise while pressing it.

e. Unscrew the coolant drain valve at the

bottom of radiator, from which the coolant

will be drained out.

f.

Remove the expansion tank assembly bolts.

g. Remove the expansion tank from the

bracket (pull it upward), and install it in

place when the coolant is drained.

Reinstall the assembly bolts.

h. Retighten the coolant drain valve at the

bottom of radiator after the coolant is

drained completely.

i.

Refill the radiator with BYD original

glycol-based long-life antifreeze coolant

until the coolant level reaches the lower

edge of the coolant filler neck. The coolant

does not require Premix.

Cooling System capacity 7 L.

j.

Power the water pump to run for

approximately 5 minutes, and then power it

off.

k.

Refill the radiator with coolant until the

coolant level reaches the lower edge of

coolant filler neck.

l.

Refill the expansion tank with coolant until

the coolant level reaches the upper limit

mark (MAX), and install the expansion tank

cover.

BYD e6A AUTO Owner's Manual

2-6 BYD e6A Operation and Driving

m.

Install the radiator cap and tighten it to the

first stop position.

n.

Power the water pump to run, and then

power it off.

o.

Remove the radiator cap, and refill

coolant until the level reaches the lower

edge of coolant filler neck and the upper

limit mark (MAX) of expansion tank.

p.

Power on until the radiator cooling fan

starts running, and then power off. Check

the coolant level in the radiator. Refill

coolant if necessary.

q.

Install the radiator cap and tighten it.

r.

If necessary, refill the expansion tank with

coolant until the level reaches the upper

limit mark (MAX), and install the

expansion tank cover.

Front-wheel drive transmission

General maintenance of front/rear-wheel

drive transmissions:

After running in a new transmission, drain the

lubricant in the transmission case and refill

with fresh lubricant. Wash the transmission

case and clean any dirty matter in it before

replacing lubricant.

Pay attention to check the lubricant amount in

the transmission case during daily operation.

Refill the lubricant when it decreases; 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 ventilation pipes on

the transmission frequently to keep them

providing a stable performance. Precautions

on the operation of P gear (parking system):

For the transmission with P gear (parking

system), Do not forcibly start the control

motor for P gear to lock the transmission in P

gear before the vehicle is stationary or run the

motor driving the transmission before the

locking of transmission by the P gear is

released. Otherwise, the transmission may be

seriously damaged.

BYD e6A AUTO Owner's Manual

BYD e6A Operation and Driving 2-7

Brake System

Design of Brake System

The hydraulic system driving the brake has

two independent loops. Each loop acts in the

diagonal direction across the car, linking the

left front wheel and right rear wheel, ect. If

one loop has fault, another two wheels still

have brake function.

Disc Parking Brake

The car is equipped with disc parking brake.

This kind of brake system requires running-in

to the brake pad regularly or when the brake

pad is replaced.

Running-in must be conducted by BYD

authorized service station.

Anti-lock Brake System

ABS helps to prevent the wheels from locking

during hard braking, allowing steering control

while braking.

When the front wheels are skidding, steering

control is not available, which means even if

you rotate the steering wheel, the car keeps

running ahead straightly. ABS helps to

prevent wheel locking, and keeps the steering

control available as the quick-acting pulse

brake responds much faster than the driver.

ABS also distributes braking forces on all

wheels according to the load status of the car.

Do not step on the brake pedal repeatedly in

a short time, otherwise ABS may fail. When

steering the car to avoid danger, you must

keep applying stable and strong pressure on

the brake pedal so as to give full play to ABS.

Sometimes it is called "Step stably, steer

accurately".

When ABS acts, you will feel a shake on the

brake pedal and sometimes you will hear

noise. This is normal when ABS makes

quick-acting pulse braking.

The ABS response time depends on tires'

driving force (adhesive force). On dry and

paved road, you shall step on the brake pedal

forcibly to enable ABS. But if you want to stop

the car on snowy or freezing road, you can

feel that ABS acts quickly.

The
front of
the car

BYD e6A AUTO Owner's Manual

2-8 BYD e6A Operation and Driving

WARNING

ABS can not reduce the time and distance
required for braking. Its function is to

maintain steering control in braking. You
shall always keep safe distance away from

other vehicles.

ABS cannot prevent skidding caused by
sudden change of vehicle direction, such as

sharp turning or sudden lane changing.
Drive the car carefully at safe speed

regardless of the road and weather
conditions.

ABS cannot prevent reduction in vehicle

stability. In hard braking, the steering shall
be moderate. Sharp turn in driving may

cause the car to smash into the traffic flow
in the opposite direction or rush off the

road.

On soft or rugged road (such as sandy or

snowy road), a vehicle with ABS may need
longer braking distance than a vehicle

without ABS. Under this condition, you shall
slow down the car while keeping larger

distance from other vehicles.

The ABS system has a self-check function. If

any malfunction occurs, the ABS indicator

(refer to the description of combination meter)

on the instrument panel will come on. It

shows that the ABS is non-functional. In this

case, the brake can only perform common

braking like vehicles without ABS systems.

You should contact an authorized BYD

service station to inspect your vehicle as soon

as possible.

If the ABS (the anti-lock braking device)

indicator and brake system indicator come on

at the same time, while the hand brake lever

is released completely, it shows that the

brake force distribution system is also

non-functional.

Press the brake pedal slightly to check if it

feels normal; if normal, check the braking fluid

level when charging at the next time. If the

level is low, drive your car to BYD authorized

service station to check whether brake

system has leakage and check the brake

wear section.

If the brake pedal feels abnormal, you shall

take measures immediately. As the brake

system adopts dual loop design, even if part

of the system fails, you can still control

braking of the other two wheels. But at this

time you shall step the brake pedal deeper to

brake the car, and the brake distance will be

longer.

Slow down the vehicle, and park it at the

roadside. As the braking distance is longer,

driving the vehicle in this condition is

dangerous. You must have it towed away and

repaired as soon as possible.

If you have to drive the car for a short trip, you

must drive with extreme care at a low speed.

ABS Indicator

BYD e6A AUTO Owner's Manual

BYD e6A Operation and Driving 2-9

Brake Wearing Piece Warning Plate

The warning plate of the brake wear section

gives an alarm sound when the wear section

needs replacement.

If you hear an alarm sound or friction noise in

driving, you must immediately call BYD

authorized service station for check and

replacement of brake wear section.

Do not continue driving your car when there is

an alarm sound.

Precautions on Luggage Loading

When shipping luggage or goods by the car,

follow the instructions below:

● It is recommended to load the luggage or

goods in the trunk. Make sure all items are

fastened in place.

● Keep proper weight balance across the

car. It is recommended to place heavy

articles in the front part to keep weight

balance,

● To save power do not ship unnecessary

heavy objects.

Suspension and Chassis

Tips

Do not amend the suspension/ chassis with

lifting tools, spacers, springs, etc., which

may cause the car to lose control.

Charging introduction &
precautions on electric vehicle
high voltage system

Charging Introduction

When the hand of the charging display in the

meter is pointed to the red warning area,

please have your vehicle charged by a

charging station.

Basic charging steps:

a. Turn off the charging switch and make sure

the vehicle is deenergized;

b. The user gets off the charging vehicle,

lock his/her electric vehicle and keep away

from the safety line specified by the

charging station.

c. Have the vehicle charged by the charging

station personnel.

d. Leave the charging station after charging is

complete.

BYD e6A AUTO Owner's Manual

2-10 BYD e6A Operation and Driving

NOTICE

To avoid being stranded due to insufficient

power and also for the sake of battery

service life, it is recommended that the

vehicle is charged when the handle is

pointed to the red warning area. Do not

charge when the battery is depleted.

Please leave the charging vehicle and

observe the guidelines specified by the

charging station during charging. Stand

away from the safety line due to the risk of

high voltage.

Precautions on Electric vehicle
High Voltage System

● Battery

The DC high voltage created by the vehicle

power battery is very dangerous. It may result

in electric shock, serious burn injuries or even

death. It is prohibited to dismantle the electric

vehicle power battery without permission.

● High-voltage circuits

All high-voltage wire harnesses in the vehicle

are colored bright orange. Never touch the

high-voltage wires and their connectors.

● High-voltage components, such as motor

controller and DC-DC.

Please do NOT disassemble or replace any

high-voltage components, such as motor

controller and DC-DC located in the front

motor cabin or the high-voltage power

distribution box in the trunk, without

permission.

● Service switch

In an emergency, power the vehicle off, pull

out the emergency service switch under the

console, and place the plug securely.

Never touch the socket by hand or conductive

objects

Notice: make sure that the vehicle is powered

off overall before pulling the emergency

service switch out. Otherwise, it may cause

negative effects to the vehicle, and even lead

to an accident.

● When charging

Make sure that the vehicle is powered off

overall before charging. Please stand behind

the yellow safety line of the charging station

when charging.

WARNING

Make sure that the vehicle is powered off

overall before charging, that is to say, the

power supply switch should be off. Please

keep away from the vehicle and stand

behind the yellow safety line of charging

station when charging.

BYD e6A AUTO Owner's Manual

Starting and Driving 2-11

Chapter 2

Section 2

Starting and Driving

Before Starting Motor . . . . . . . . . . . . . . . 2-12
How to Start Motor. . . . . . . . . . . . . . . . . 2-12
Safety Check Before Driving . . . . . . . . . . . . . 2-12
Precautions on Charging . . . . . . . . . . . . . ... 2-13
Driving Tips Under Certain Conditions . . . . . . . . .. 2-14
Driving Tips in Winter . . . . . . . . . . . . . . . 2-15
Tow Trailer . . . . . . . . . . . . . . . . . . . 2-15
How to Save Power and Extend Auto Service Life . . . . 2-16

BYD e6A AUTO Owner's Manual

2-12 Starting and Driving

Before starting the vehicle

a.

Check the environment around the car

before getting in.

b.

Adjust seat position, seatback angle,

height of the head protection device,

steering wheel angle.

c.

Adjust inner and outer rear view mirrors.

d.

Lock all doors.

e.

Fasten seat belts.

Once the vehicle anti-theft system is set by

the "LOCK" button on the wireless remote

controller, it must be cancelled by pressing

the "UNLOCK" button again before starting

the vehicle. Otherwise, the vehicle cannot be

started.

Vehicle Starting Method

(a) Before Staring

a.

Disable the vehicle anti-theft system.

b.

Depress the service braking pedal.

c.

Release the parking brake pedal.

d.

Set the shift handle to Dgear.

(b) Starting the vehicle

Confirm that the procedures in "(a) Before

Vehicle Starting" have been completed before

cranking the power assembly.

Normal Starting Procedures

The motor controller program controls the

proper distribution of starting voltages and

currents automatically. Please follow the

procedures below to start the vehicle.

To start the electric vehicle, press the

"ENGINE START STOP" switch while the

intelligent key is inside the vehicle. The OK

light will come on when the vehicle has been

successfully started.

If the vehicle cannot be started normally,

please refer to "If Vehicle Cannot be Started

Normally" in chapter 3.

Safety Check Before Driving

It is recommended to perform a vehicle safety

check before driving.

The check takes just a few minutes and

allows you enjoy to a safe and comfortable

driving experience. You need some general

knowledge about vehicle systems and a pair

of sharp eyes!

Check Before Starting the Power Assembly

Vehicle Exterior Conditions

Tires: check tire pressure with a gauge, and

check if there are any cuts, damage or

excessive wear.

Wheel Nuts: make sure there no nuts are

loose or missing.

Leakage: if the vehicle has been parked for a

while, you must check if there is brake fluid,

engine oil, coolant or other fluid leakage

under the vehicle (Water drops produced by

AC system are normal).

Lighting: make sure headlights, parking lights,

width-indicator lights, turn signal lights and

other lights work normally. Check illumination

intensity of headlights.

BYD e6A AUTO Owner's Manual

Starting and Driving 2-13

Vehicle Interior Conditions

Spare tire, jack and wheel nut wrench: check

tire pressure and make sure the jack and

wrench are in place.

Seat belt: check whether buckle can fasten

seat belt firmly. Make sure seat belt has no

wear or scratching.

Instruments and Controllers: take special

care to make sure service reminder indicator,

instrument lighting and defroster work

normally.

Brake: make sure the pedal has enough

clearance.

Motor Compartment Interior Conditions

Spare Fuse: make sure all types of fuses are

available. The fuse specifications must be in

compliance with the rated values.

Coolant level: confirm that the coolant level is

between the Max and Min scale lines in the

expansion tank.

Hydraulic fluid: confirm that the fluid level is

between the two scale lines.

Battery and Cables: all cells of the battery

must be filled with distilled water to the proper

level. Check whether there are corroded or

loose terminals, and whether the battery box

has cracks. Check whether cables and

connection are proper.

Cables: check whether there are damaged,

loose or disconnected cables.

Brake Pipe: check whether there is a leakage

or bad connection in the brake pipe.

Tips

Do not leave children's toys in the vehicle,

which may pose potential danger though

providing fun for the children, especially in

event ofhard braking and collision, when

the toys may not only affect the safety of

driving but also cause injury to the children.

After Motor Starting

Instruments: observe the indicators on the

meters. Start the vehicle after confirming

there are no illuminated warning lights.

In Driving

Instruments: make sure service reminder

indicators and speedometer work normally.

Brake: under safe traffic conditions, make

sure braking does not result in deviation of

the vehicle.

Other abnormal symptoms: check the

connections for leakage, looseness or

abnormal noises.

If no abnormality is found out, you can enjoy

your driving now.

Precautions on charging

a. Charge the battery when the vehicle power

displayed on the instrument decreases into

red zone. All of the new models can be

charged in BYD specified charging

stations.

b. Perform vehicle charging only when the

parking brake pedal is depressed, nobody

in the vehicle, vehicle not started, charging

sensor switched off and water pump

functioning normally.

BYD e6A AUTO Owner's Manual

2-14 Starting and Driving

Tips

To avoid being stranded due to insufficient

power and also for the sake of battery

service life, it is recommended that the

vehicle is charged when the handle is

pointed to the red warning area. Do not

charge when the battery is depleted.

Please leave the charging vehicle and

observe the guidelines specified by the

charging station during charging. Stand

away from the safety line due to the risk of

high voltage.

Driving Tips Under Certain
Conditions

● Driving slowly in head wind, which is

helpful for operating of the car.

● When driving the car to climb the roadside

curbstone, keep low speed and proper

direction) Avoid driving on any objects

with sharp edges or on any road block.

Otherwise the tires may suffer severe

damage such as explosion.

● Slow down vehicle speed on rugged roads.

Otherwise tires and/or wheels will suffer

severe damage.

● The brakes may be wet when cleaning the

vehicle or driving through deep water. To

check if they are wet, make sure it is safe

around the vehicle at first, then depress

the brake pedal slowly. If there is no proper

braking force, the brakes may be wet. In

this case, it is recommended that you not

proceed to driving until they have dried.

Tips

● Before driving, make sure that parking

brake is released fully and the parking

brake indicator goes out.

● Do not rest your feet on brake pedal

while driving, which may cause

dangerous overheating, wear and

power energy consumption.

● Take special care when speeding up,

shifting to higher/lower gear, or braking

on slippery road. Hard acceleration may

result in skidding or spinning of the

vehicle.

● Do not continue driving when the brake

is wet. Wet brake requires longer

braking distance and may cause

deviation of the direction of the car.

Also, in this case parking brake can not

stop the car firmly.

NOTICE

When driving on a wet road, keep away

from the deep water if possible. Wading

depth should not be over the height of

battery tray. The minimum ground

clearance of battery tray with capacity load

is 138 mm. Hence, the wading depth should

be lower than this value. When the battery

pack is soaked by water, the electrical

components, such as the battery pack, will

be damaged.

Do not climb when the battery power is low

(soc is below 20%).

BYD e6A AUTO Owner's Manual

Starting and Driving 2-15

Driving Tips in Winter

Make sure coolant is suitable for use in

winter.

Only use the BYD specified coolant. Select

the suitable coolant according to the ambient

temperature.

Improper coolant could damage the cooling

system components, such as the motor.

NOTICE

Do not use purified water in cold winter,

otherwise the motor cooling system could

be damaged.

Check Battery and Cable Status

Cold weather may reduce battery

performance, and you must keep the battery

charge high enough for starting in the winter.

Visual check of the battery is described in the

next chapters of this manual. BYD authorized

service station can check charging status of

the battery for you.

Avoid Door Lock Freezing

Spray some deicing agent or glycerin in door

lock hole to prevent the lock from freezing.

Use Cleanser with Antifreeze

It is available in BYD authorized service

stations and all auto part stores. Mixing ratio

of water and anti-freeze must follow the

anti-freeze manufacturer's instructions.

If the parking brake appears frozen, do not

drive immediately. Please wait until the

parking brake has defrosted.

When parking in winter, switch the gear

handle to P gear and chock the rear wheels

or the wheels that may move with wedges. Do

not use the parking brake, to prevent it from

freezing due to the accumulated water or

snow, resulting in difficulty in releasing the

brake under such conditions.

Prevent snow from staying under mudguard.

Snow or ice under mudguard may make

steering difficult. When driving in winter, you

shall stop the check regularly to check

whether there is ice or snow under mudguard.

You are recommended to keep certain

emergency tools on the car according to

your region.

Examples of such articles are tire chains,

window wiper, a bag of sand or salt, flasher

signaling device, shovel and connection

cables.

Tow Trailer

BYD e6A electric vehicle is designed for

transportation of passengers. Towing a trailer

may have a bad effect on operation,

performance, braking, endurance and energy

economy of the vehicle. Safety and comfort in

driving depend on proper use of devices and

the driver's habitual care in driving. For the

sake of safety of yourself and others, do not

over load the car or tow a trailer. Damage or

failure caused by towing a trailer for business

purpose is not covered by BYD warranty.

BYD e6A AUTO Owner's Manual

2-16 Starting and Driving

Weight Limit

Before towing a trailer, make sure it is within

the vehicle's capacity. You can contact the
local BYD authorized service station to check

the trailer's capacity.

Towing capacity is measured on a level road.
In regions with high altitudes, please take

note that the motor power and its towing
capacity will reduce.

Tips

Towing trailer shall not exceed the
maximum rated load of the two-hook, or it

may cause an accident and severe
personal injury.

As towing a trailer may require longer

braking distance, you must maintain a
larger distance to other vehicles. For every

10km/h, the distance between your vehicle
and the vehicle in front of you must be no

less than the total length of your vehicle and
the trailer. Avoid hard braking to prevent the

vehicle from skidding, which may cause the
vehicle to get out of control.

Tire

● Make sure the tire air pressures are

appropriate in each tire.

● Taking the total weight of a trailer into

consideration, keep its tires with proper

pressure as specified by its manufacturer.

Running-in Procedure

● For a new auto or after undergoing

replacement of driving system parts
(motor, transmission, differential

mechanism, wheel bearing, driving shaft,
etc.), do not tow any trailer in the first

2000 km travel.

Maintenance

● When towing a trailer, the increased load

requires more frequent maintenance of

the car.

How to Save Power and Extend
Auto Service Life

In simple and easy way you can save power.

Fuel-saving is also helpful to extend service
life of the vehicle. Here are some tips on

saving power and maintenance expense:

● Maintain proper pressure in tires.

Insufficient tire pressure may cause

excessive tire wear and waste power.
Refer to description in section 5-4.

● Do not leave unnecessary articles in the

vehicle. Weight of unwanted articles will
increase power assembly load and

consume more energy.

● Accelerate slowly in a stable manner. It is

recommended to avoid starting,

accelerating and decelerating suddenly.

● Avoid unnecessary stopping or braking.

During driving, keep a steady vehicle
speed while taking traffic signals into

consideration; and if possible, take a road
without traffic lights. Keep a proper

distance from the vehicle in front of you to
avoid hard braking, which is also helpful to

reduce brake wear.

● Avoid driving in traffic peak hours or traffic

jam areas.

● Maintain an appropriate speed on a

freeway. The higher the vehicle speed is,
the greater the energy consumption.

Keeping an appropriate speed can reduce
energy consumption.

BYD e6A AUTO Owner's Manual

Starting and Driving 2-17

● Keep front wheels in proper alignment. Do

not impact on curbstone, and slow down

on rugged roads. Bad alignment of front
wheels may cause excessive wear of tires,

and also increase the load of power
assembly and energy consumption.

● Keep the chassis clean and free of mud

and similar materials. It helps to reduce
vehicle weight and prevent corrosion.

● Adjust and keep the vehicle under the best

working conditions. Regular maintenance
needs to be conducted so as to keep a long

service life of all components as well as to
reduce the operating costs. If always driving

in severe conditions, please have the
vehicle maintained more frequently (see

chapter 4).

● To extend the battery service life, please

adopt the shallow charge-discharge
method (keep the battery charge within

the range of 15% and 80%).

BYD e6A AUTO Owner's Manual

2-18 Starting and Driving

BYD e6A AUTO Owner's Manual

Emergency Treatment 3-1

Chapter 3

Emergency Treatment

If the Vehicle Cannot Start Up . . . . . . . . . . ... 3-2
If No Power Outputs in Driving . . . . . . . . . . .. 3-2
If the Vehicle Is Overheated . . . . . . . . . . . .. 3-3
If the Vehicle Has Flat Tires . . . . . . . . . . . .. 3-4
If the Vehicle Gets Stuck . . . . . . . . . . . . ... 3-10
If the Vehicle Has to Be Towed . . . . . . . . . . . 3-10
Emergency Treatment . . . . . . . . . . . . . ... 3-11

BYD e6A AUTO Owner's Manual

3-2 Emergency Treatment

If the Vehicle Cannot Start Up --

Simple Check

Before checking, confirm that the vehicle is

started according to the procedures

described in "Vehicle Starting Method" in

chapter 2, and check if the battery power is

sufficient. Meanwhile, check whether the

power assembly can also be started with the

other keys. If starting operation is possible,

the key may be damaged or the battery

power is insufficient. Replace the battery (see

"Keys" in chapter 1-2) or have the key

checked by the BYD authorized service

station. If the keys are all unavailable, the

vehicle control system may be failed. In this

case, please contact the BYD authorized

service station (see "Keys" in chapter 1-2).

If the Vehicle Cannot Start Up --

a. Open the motor compartment and confirm

the cooling fan is operating. If not, check if

the cooling fan connectors are loose;

b. Check if the coolant level is proper. If not,

refill the coolant to a proper scale line.

If the vehicle cannot be started even though

the items above are all normal, contact the

BYD authorized service station.

WARNING

Keep hands and clothes away from the fan

to avoid danger in case of sudden starting

of the cooling fan.

WARNING

To avoid personal injury, please keep the

motor compartment closed until there is no

steam coming out. The spouting of steam

or coolant means high pressure.

If No Power Assembly Outputs in Driving

a. Please slow down the vehicle slowly, keep

moving in a straight way and run off the

road to a safe place.

b. Turn on the emergency hazard warning

lights.

c. Start the vehicle again according to "Power

Assembly Starting Method".

Tips

When the motor in power assembly is not

running, the brake and steering device

boosters do not work, which makes

steering and braking more difficult than

usual.