BYD F3DM. Service Manual - part 10

- 145 -

F3DM Owner’s Manual

Chapter 4 

—————————————————————————————

In Case of An Emergency

If the Car Cannot Start  …………………………………………… 146
If the DM system stalls in Driving ………………………………… 146
If the Car Overheats ……………………………………………… 146
If the Car Has Flat Tires ………………………………………… 148
If the Car Gets Stuck ……………………………………………… 154
If Car-towing is Needed …………………………………………… 155
Emergency Maintenance Switch ………………………………… 157

使用手册小330.indd   145

2011-4-13   18:36:52

- 146 -

F3DM Owner’s Manual

If the Car Cannot Start  

(a) Simple Check 
Before conducting this check, make 
sure the starting procedure in “How 
to Start the Car” in Chapter 3 is 
performed properly and there are 
sufficient fuel and power.   Meanwhile, 
check if the car can get started by 
using the spare key. If it works, your 
key may be broken. Please contact 
BYD authorized dealer to check your 
key. If none of your keys work, the 
vehicle control system may have a 
malfunction, please contact BYD 
authorized dealer for help. (Refer to 
description “Keys” in Section 1-2.)
1.Check that the auxiliary battery 
connections are tight and clean.
2.Turn the ignition switch to the ON 
position, turn on the headlights, and 
check their brightness. If the headlights 

are very dim or do not come on at all, 
the battery is discharged. Please refer 
to “Jump Starting” in section 7-3.
3.Check whether the power battery is 
discharged, if yes, charge the battery 
immediately. 
4. Check if there is sufficient fuel in the 
tank. Insufficient fuel also cause the 
car cannot startup.
If you find nothing is wrong, but the car 
can’t start. You will need a qualified 
technician to find the problem. Please 
contact your BYD authorized dealer.

WARNING

You cannot start your vehicle by 
pushing or pulling it.

If the DM system stalls in 

Driving 

1. Turn on the emergency flashlight.
2. Please slow down the car gradually, 
keep moving in a straight line and run 
off the road to a safe place. 
3. Follow “Car Starting Methods” and 
try to start the car again. 
If the car cannot start, please see “If 
the Car Cannot Start Up”. 

WARNING

If the DM system is off, the boosters 
of brake and steering device cannot 
work, which makes steering and 
braking much harder than usual.

If the Car Overheats

If the high coolant temperature warning 
light comes on, if there is no power 

!

!

使用手册小330.indd   146

2011-4-13   18:36:52

- 147 -

F3DM Owner’s Manual

output or if there is loud knocking or 
ping noise, that means the power train 
or engine controller is overheated. 
Please handle it as per the procedures 
below…
1. Turn on the emergency flashlight, 
drive the car safely off the road and 
stop it. Put the transaxle in P position 
and apply the parking brake. Shut 
down air conditioner if it is running. 
2. If there is  antifreeze or steam boiling  
out of the tank, shut down the DM 
system. Wait until the steam subsides 
before opening the hood. If there is no 
antifreeze or steam boiling over, leave 
the DM system running and check the 
electric cooling fan. If electric cooling 
fan do not work, turn the ignition off, 
call your BYD authorized dealer for 
repair.

WARNING

Driving in the condition of car   
overheats can cause serious 
damage to your engine. 

WARNING

Steam and spray from overheated 
engine can seriously scald you.
Do not open the hood if steam is 
coming out.

3. Check whether there is obvious 
antifreeze leakage under the radiator, 
hose.  Water  draining  from  the  air 
conditioning is normal if it has been 
used.

WARNING 

Keep a proper distance between the 
fan and things, such as hands and 
clothes, to avoid a danger caused 
by abrupt startup of the fan.

4. If any antifreeze leakage, you shall 
stop the engine immediately. Please 
contact BYD authorized dealer for 
help. 
5. In case of no obvious leakage, 
please check the antifreeze reservoir; 
if the level is below the MIN mark or 
there is no antifreeze in the reservoir, 
add some   antifreeze to the reservoir 
up to the maximum scale mark with the 
DM system is running. 

!

!

!

使用手册小330.indd   147

2011-4-13   18:36:52

- 148 -

F3DM Owner’s Manual

WARNING

Removal of the radiator cap Under 
high temperature can cause the 
antifreeze to spray out, and serious 
injury may be resulted from scalding 
fluid and steam blown out under 
pressure.
Always let the engine and radiator 
cool down before removing the 
radiator cap. 

6. When the antifreeze temperature 
be cooled to normal, check the 
antifreeze level in the tank again and 
add additional antifreeze up to the 
maximum scale mark if necessary. 
Large drop of antifreeze level means 
leakage in the system. Please contact 
BYD authorized dealer for immediate 
examination.

If the Car Has Flat Tires

Turn on the emergency flashlight.
Drive slowly along the shoulder until 
you get to an exit or an area to stop a 
safe place away from the traffic lanes. 
Park the car on firm, level and non-
slippery ground.
Put the transmission in P and apply the 
parking brake. 
Turn the ignition switch to “LOCK” 
position.
All the passengers get out of the car 
on the side away from traffic. 
Read the following instructions 
carefully.

WARNING

To reduce the possibility of serious 
personal injury, please obey the 
instructions below when you lift the 
car by a jack. 

 

y

Follow the directions for changing 

a tire exactly, and never get 
under the vehicle when it is 
supported only by the jack 

 

y

When the car is lifted by a jack, 

do not start and run the DM 
system.

 

y

 Park the car on firm, level and 

non-slippery ground, apply 
parking brake tightly and shift 
the transmission to P gear. If 
necessary, block the wheel 
diagonally opposite to the one 
being changed. 

 

y

Make sure to set the jack properly 

!

!

使用手册小330.indd   148

2011-4-13   18:36:52

- 149 -

F3DM Owner’s Manual

in the jack point. Raising the 
vehicle with jack improperly 
positioned will damage the 
vehicle or may allow the vehicle 
to fall off the jack and cause  
personal injury.

 

y

When  the  car  is  supported  by 

jack, no one is allowed to get 
under the car.

 

y

Use jack only for lifting the car 

while tire changing.

 

y

Do not lift up the car when 

someone is in it. 

 

y

Do not put anything at the top or 

bottom of the jack while lifting the 
car. 

 

y

Just lift the car to a height 

that allows tire removal and 
replacement.

WARNING

 

y

Do not continue driving the car 

with a flat tire. Driving even a 
short distance on a deflated 
tire can lead to tire failure, also 
reduce fuel efficiency and tire 
life, and may affect the vehicle’s 
handling and stopping ability.

 

y

Use the spare tire  as a temporary 

replacement  only.  Get  your 
regular tire repaired or replaced, 
and put on your vehicle as soon 
as you can.

Tools Required and Spare Tire

1. Take  out  tools  required  and  the 
spare tire.
1.Toolkit
2.Jack
3.Spare tire
In emergency conditions, you may 
have to repair the car by yourself. 
Please well know the use method and 
storage location of the jack and various 
tools.

!

使用手册小330.indd   149

2011-4-13   18:36:52

- 150 -

F3DM Owner’s Manual

Remove: rotate the terminal in direction 
1 until the jack becomes flexible.
Storage: rotate the terminal in direction 
2 until the jack is fixed tightly to prevent 
it from being thrown forward when 
there is crash or emergency braking.

Loosen and remove the spare tire 
carrier, then take out the spare tire. 
To store the tire, please put the outside 
of the tire downward in place, and then 
fasten the tire in the opposite order to 
prevent it from being thrown forward 
when there is a crash or emergency 
braking. 
Note: when fastening the original tire 
of the car with methods of fastening 
the spare tire carrier, please put the 
side with higher convex plate facing 
upwards.

Block Wheels 

2. While lifting, please lay the block 
under the wheel in the diagonal 
direction of the flat tire to prevent the 
car sliding.
Put the block in front of a front wheel 
or behind a rear wheel.

使用手册小330.indd   150

2011-4-13   18:36:52

- 151 -

F3DM Owner’s Manual

Unscrew wheel nuts 

3. Unscrew all bolts on the flat tire.
Unscrew all bolts on the wheel before 
lifting the car. 
Unscrew the bolts on the wheel anti-
clockwise. For better torque, you can 
fit the wrench to the nut with its handle 
on the right side, as shown in the figure 
above. Grip at the end of the wrench 
handle and pull upwards. Please avoid 
the wrench slipping off the nut.
Do not remove the nuts, just loosen 
them. 

Jack Positioning 

4. Place the jack under the proper 
lifting point, as shown in the figure. 
Make sure that the jack is placed on 
the flat and solid ground.

Lift the Vehicle

5. Make sure nobody is in the car, and 
lift up the car to a height that allows 
installation of spare tire. 
Please notice that it needs larger 
ground clearance to install the spare 
tire than removing the flat tire.
To lift up the car, please insert the 
jack handle into the jack (loose joint) 
and  rotate  it  clockwise.  When  the 
jack touches the car and starts lifting, 
please check again if the jack is at the 
right position.

使用手册小330.indd   151

2011-4-13   18:36:52

- 152 -

F3DM Owner’s Manual

WARNING

When the car is supported only by 
jack, no one is allowed to get under 
the car.
Pay attention to the exhaust pipes 
on both sides of car in using jack, to 
avoid burns.

Replace Wheels

6. Remove wheel bolts and replace the 
tire. 

Take off the flat tire and put it aside 
Move the spare tire to the installation 
position, align the bolts to tire holes, 
and then raise the tire until the top bolt 
fits into the screw hole. Rotate the tire 
and push it until all bolts can fit into 
corresponding screw holes.

Before installation, please brush off all 
corrosive materials on the installation 
surface with a wire brush. During 
installation, the metal area on the 
installation surfaces must be in good 
contact with each other, or the wheel 

bolts may get loose, which may cause 
the tire falling off while driving.

Reinstall Wheel Bolts

7. Put on the spare tire. Reinstall all 
wheel bolts (tapered end inward) and 
tighten them as much as you can by 
hand. Push the wheel backward and 
see if you can tighten them more..

!

使用手册小330.indd   152

2011-4-13   18:36:52

- 153 -

F3DM Owner’s Manual

WARNING

Do not apply engine oil or lubricant 
on the nuts, or they will get loose, 
w h i c h   m a y   c a u s e   t h e   w h e e l 
detached and lead to serious 
accident. If there is engine oil or 
lubricant on the bolts or nuts, clean 
them immediately.

Lower Down Vehicle 

8. Lower down the car to ground and 
tighten the wheel bolts. 
To lay down the car, please rotate the 
jack handle counterclockwise.
Please use a wheel wrench to tighten 
the wheel bolts. Do not use any other 
tools or lever other than your hands, 
like hammer, tube, or your foot. Make 
sure the wrench is securely engaged 
over the bolts. 
As per the order shown in the figure 
above, tighten the bolts slightly one by 
one, repeat the procedure until all the 
bolts are fastened firmly.

WARNING

 

y

Please make sure no part of your 

body and no one nearby will get 
injured while laying down the car 
onto the ground.

 

y

After the tire is replaced, Have 

the wheel bolts tightened with 
torque wrench to 110N·ｍ (11.5 
kgf·m). Otherwise if the torque 
is insufficient, the nuts will get 
loose, which may cause the 
tire fell off and result in serious 
accident. 

After Tire Replacement
9. The tire pressure after replacement. 
Adjust the tire pressure to the 
specification specified in Chapter 8. 
If the current pressure is lower than 
specified, please drive the car slowly 
to the nearby service station for air 

!

!

使用手册小330.indd   153

2011-4-13   18:36:52

- 154 -

F3DM Owner’s Manual

charging. 
Do not forget to install the tire valve 
cap, or dust and moisture will enter 
the valve core to cause possible air 
leakage. If the tire valve cap is missing, 
please use a new one immediately.
10. Keep all the tools, jack and flat tire 
properly and fasten the flat tire in the 
spare tire carrier. 
Flat tire shall be repaired by the 
professional technician. The flat tire 
should fasten as follow way, with higher 
convex plate side facing upwards. See 
the  following  illustration.

Bolt

WARNING

 

y

Store the jack, wheel, and tools 

securely before driving. Loose 
items can fly around the interior 
in a crash or sudden braking, and 
could seriously injure occupants. 

 

y

After tire replacement, please do 

not drive over 70km/h and single 
travel cannot exceed 100km; you 
shall drive slowly to the nearest 
BYD authorized dealer to get the 
tire replaced. Otherwise, serious 
accidents such as tire burst and 
failure of operation may occur.

 

y

If you ever replaced a tire, make 

sure that the tire’s specifications 
match those of the original tires.

 

y

when the compact spare tire is 

installed,avoid driving over obstacles 
and drive slowly on rough, unpaved 
roads and speed bumps.

If the Car Gets Stuck 

If the car gets stuck in snow, mud, or 
sand, please try to get it out by pushing 
it forward or backward. Or you can call 
a towing service to pull it out (see the 
next section If Car-towing is Needed)

WARNING

If there are persons or objects near 
the car, please do not try to move 
the car by pushing it forward and 
backward. If not, once the car gets 
out and suddenly moves forward or 
backward, there may be personal 
injury or damage to objects.

!

!

使用手册小330.indd   154

2011-4-13   18:36:53

- 155 -

F3DM Owner’s Manual

If Car-towing is Needed 

Tow from the front

Tow from the back

Use flat bed truck

Proper  equipment  will  help  ensure 
that your vehicle is not damaged 
while being towed. Your vehicle can 
be damaged if it is towed incorrectly. 
Although most operators know the 
correct procedure, it is possible to 
make a mistake. To avoid damage to 
your vehicle, make sure the following 
precautions are observed. 

Precautions for Towing: 
Use safety chain system and abide 
by applicable national and local laws. 
If you cannot shift the transmission or 
start the DM system, your vehicle must 
be towed by a flat bed truck.

WARNING

 

y

You  are  required  to  release  P 

gear before towing the car, that’s 
to say, when the engine starts, 
you shall shift transaxle to N gear 
before driving. If P gear is locked, 
you can only tow the car by lifting 
the front wheels off the ground, or 
it may damage the transmission 
box.

 

y

Do not tow with sling type truck, 

either from the front or rear. This 
may cause body damage.

 

y

When  lifting  wheels,  should  

e n s u r e   a d e q u a t e   g r o u n d 
clearance for towing the raised 
v e h i c l e .   O t h e r w i s e ,   i n   t h e 
course of towing vehicle may be 
damaged.

!

使用手册小330.indd   155

2011-4-13   18:36:53

- 156 -

F3DM Owner’s Manual

Emergency Towing

For emergency towing, we recommend 
you to have it done by    your BYD 
authorized dealer. 
If you cannot find a towing company 
under emergency situation, please 
tie the towing cable or chain to the 
emergency towing hook at the bottom 
of the car for temporary towing. In this 
case, you shall be extremely careful.

WARNING 

 

y

Please use the specified towing 

hook, cable or chain and tie the 
cable or chain to the hook tightly, 
or it may damage the car and 
cause serious injury or death.

 

y

Do not tow the car from the 

rear with all four wheels on 
the ground, or it will seriously 
damage the transmission.

 

y

You  are  required  to  release  P 

gear before towing the car, that’s 
to say, when the engine starts, 
you shall shift transaxle to N gear 
before driving. If P gear is locked, 
you can only tow the car by lifting 
the front wheels off the ground, or 
it may damage the transmission 
box. 

 

y

Do not tow the car farther than  

10km and keep the speed below 
30  KM/h. 

 

y

The DM system shall be running 

in towing; if not, boosters of 
brake and steering device cannot 
work, which makes steering and 
braking much harder than usual.

The driver must be in the vehicle to 
steer the car and control the brake.
Towing in this way may be done only 
on hard–surfaced roads for a short 
distance and at low speeds. Also the 
wheels, axles, transmission, drive train, 
steering, and brakes must be in good 
condition.

!

使用手册小330.indd   156

2011-4-13   18:36:53

- 157 -

F3DM Owner’s Manual

WARNING

Take extremely attention when 
towing the car. Avoid sudden starts 
or unstable operation which would 
effect great stress on the emergency 
towing hook and towing cable or 
chain. It may cause the hook and 
towing cable or chain break and 
cause serious injury or damage.

Emergency Maintenance 

Switch 

Functions of emergency maintenance 
switch 
In vehicle maintenance and 
emergency, cut off all high-voltage 
system in the unit. 
Emergency  maintenance  switch  is 
under the guard board of luggage 
carrier. Press the button on the 

handle when using and then pull it out 
horizontally.

E m e r g e n c y 
maintenance 
switch

WARNING

 

y

When the ignition key is at “ON”, 

strictly prohibit from plugging/ 
unplugging the emergency 
maintenance switch and 
connectors on the box. 

 

y

Before repair/dismantle the whole 

unit, do pull out the emergency 
maintenance switch first.

 

y

Do not pull out the emergency 

m a i n t e n a n c e   s w i t c h   a n d 
connectors on the box when the 
car is being charged

!

!

使用手册小330.indd   157

2011-4-13   18:36:53

- 158 -

F3DM Owner’s Manual

WARNING

 

y

Please check that the ignition 

key do turn to “LOCK” position 
and the emergency maintenance 
switch has been installed on 
the high-voltage distribution box 
before charging the battery.

 

y

You’d better pull out the 

emergency maintenance switch 
if the car is not used for a long 
time.

WARNING

 

y

Do not pour any fluid or solid into 

high-voltage distribution box and 
on the connectors of box. Do 
not start the car when fluid and 
solid enter into the high-voltage 
distribution box. 

 

y

When there is no emergency 

maintenance switch, do not 
replace it with any other 
conductive metal. 

 

y

Avoid an electric shock, it’s strictly 

forbidden to touch the high-
voltage parts without security 
device. 

 

y

It’s strictly forbidden to disconnect 

the high-voltage distribution box 
privately. 

 

y

Do not plug/unplug the connectors 

of battery administrator in driving 
and parking. 

●It’s strictly forbidden to compress 
or knock the shell of the controller. 
If any sunk part and crack on the 
shell, you shall stop the car and 
call your BYD authorized dealer for 
repair.   
You shall be responsible for all 
consequences  arising  from  the 
operations in violation of the rules

!

!

使用手册小330.indd   158

2011-4-13   18:36:53

- 159 -

F3DM Owner’s Manual

Chapter 5

—————————————————————————————

Corrosion Prevention and Appearance Care

Protecting F3DM from corrosion ………………………………… 160
Tips on maintenance of vehicle surface ………………………… 161
Washing and waxing ……………………………………………… 162
Cleaning the interior ……………………………………………… 165

使用手册小330.indd   159

2011-4-13   18:36:53

- 160 -

F3DM Owner’s Manual

Protecting F3DM from 

corrosion

Proper maintenance of your car can 
help ensure long-term corrosion 
prevention.
The most common causes to corrosion 
to your vehicle are: 
●The accumulation of road salt, dirt 
and moisture in hard-to-reach areas 
under the vehicle
●Clipping  of  paint,  or  undercoating 
caused by minor accident or by stones 
and gravel.
If you live in particular areas or operate 
your vehicle under certain environment 
condition, care is of utmost importance:
●Road salt or dust with chemicals will 
accelerate corrosion. Salt also exists in 
the air near the sea coast or in areas 
of industrial pollution.
●High  humidity  will  accelerate 

corrosion, especially when temperature 
range just above the freezing point.
●When  certain  parts  of  the  car  are 
always under circumstances with high 
humidity and moisture, even if the rest 
parts may be dry, corrosion will occur.
●High ambient temperature may cause 
corrosion to those components which 
cannot get dry quickly due to lack of 
proper ventilation.
Those above signifies the necessity to 
keep your car, especially its underside, 
as clean as possible and to repair any 
damage to paint or protective coatings 
as soon as possible., 
To prevent corrosion on your F3DM, 
please follow the guidelines below:
Washing your car regularly can keep 
it clean. But to prevent corrosion, 
please the following points should be 
observed: 
●If you drive the car on salted roads in 

winter or live near the ocean, please 
wash the running part of the car at 
least once per month to minimize 
corrosion.
●It  is  effective  for  cleaning  chassis 
and wheel cover under high pressure 
water or steam. Pay more attention 
to the vehicle’s underside and wheel 
housings as it is difficult to see all the 
mud and dirt. It will be much more 
harmful to simply wet the mud and 
debris without removing. Drain holes 
in the lower edge of doors, rocker 
panels and frame members should not 
be allowed to clog with dirt, because 
trapped water in these areas can 
cause corrosion. 
●Wash the underside of your vehicle 
thoroughly when winter is over.
For further information, please refer to 
“Washing and Waxing”.
Check the condition of your vehicle’s 

使用手册小330.indd   160

2011-4-13   18:36:53