BYD F7-1, F7-2, F7-3. Service Manual — part 7

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Maintenance Notice 5-5

n

Iridium

Platinum

Spark

Plug

Replace every 25,000km

Severe service

Condition

Replacement in Advance as Required

5. Check the crankcase ventilation system

(PCV valve and air hose)

I

I

I

I

I

I

I

I

6. Check if the water-cooling pipe is

damaged and whether its connection is

firm

I

I

I

I

I

I

I

I

7. Check the engine coolant level in the

overflow pot

I

I

I

I

I

I

I

I

8. Replace the engine coolant

Replace every two years or 40,000km

9. Replace the

element of the

air filter

General Service

Condition

Clean every 2500km; replace every 15000km

Severe service

Condition

Replacement in Advance as Required

10. Change the

engine oil

General Service

Condition

R: every 5000km or six months

Severe service

Condition

R: every 3000km

11. Replace the

engine oil filter

General

Service

Condition

R: every 5000km or six months

BYD F7-1, F7-2, F7-3

Owner’s Manual

Maintenance Notice 5-6

Severe service

Condition

R: every 3000km

12. Check the battery accumulator

I

I

I

I

I

I

I

I

13. Check the idle speed of the engine

I

I

I

I

I

I

I

I

14. Check the ignition timing

I

I

I

I

15. Check and adjust the valve clearance

I

I

I

I

I

I

I

I

16. Check if the exhaust fitting is leaking

air

I

I

I

I

I

I

I

I

17. Check transmission oil cooler hose

I

I

I

I

I

I

I

I

18. Check the control cable of the throttle

valve

I

I

I

I

I

I

I

I

19. The throttle body

Clean every 10000km

20. The oil nozzle

I

I

I

I

21. Check the oxygen sensor

I

I

I

I

I

I

I

I

22. Check the three-way catalytic

converter

I

I

I

I

I

I

I

I

23. The fuel filter

Every 10,000km or six months

24. The fuel tank cover, fuel pipe, and

terminal

I

I

I

I

25. The active carbon canister

I

I

I

I

I

I

I

I

26. Check and
change the gear

General Service

Condition

I

R

R

I

R

I

R

I

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Maintenance Notice 5-7

oil inside the
manual
transmission

Severe service

Condition

R: Time Period Reduction as Required

Chassis & Car Body

27. Check the fixation screw fastening the

chassis

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

28. The brake pedal and parking brake

I

I

I

I

I

I

I

I

29. The brake pad and brake disc

I

I

I

I

I

I

I

I

30. Brake fluid

Replace every two years or 40,000km; check during schedule maintenance

31. The brake pipe and hose

I

I

I

I

I

I

I

I

32. Power-assisted steering fluid

Replace after first 40,000km, then replace every two years or 40,000km,

check once every year

33. The steering wheel and draw bar

I

I

I

I

I

I

I

I

34. The dust helmet of transmission shaft

I

I

I

I

I

I

I

I

35. The ball pin and dust helmet

I

I

I

I

I

I

I

I

36. The front and back suspension

system

I

I

I

I

I

I

I

I

37. The tire and inflation pressure

I

I

I

I

I

I

I

I

I

I

I

I

I

I

I

38. Check the front and back wheel

alignment

I

I

I

I

I

I

I

I

39. Check if the wheel bearing is with

clearance

I

I

I

I

I

I

I

I

40. Check the function of the clutch

system and adjust the pedal travel

I

I

I

I

I

I

I

I

BYD F7-1, F7-2, F7-3

Owner’s Manual

Maintenance Notice 5-8

41. Clutch fluid

Replace every two years or 40,000km; check during schedule maintenance

42. Clutch system piping and hose

I

I

I

I

I

I

I

I

43. Cooling or heating system

I

I

I

I

I

I

I

I

44. The filter of air conditioning

I

R

R

R

R

R

R

R

45. The refrigerant of air conditioning

I

I

I

I

I

I

I

I

46. Check the air bag system

I

I

I

I

I

I

I

I

47. Check damage to the car body

Every year

48. Check hood lock and fastener

Every year

Note: 1. Meaning of symbols in the table: I = inspect, adjust or replace; R = replace, change or lubricate
2. Time period for replacement of oil filter can be reduced based on the dirt level of the gasoline engine.
Severe service condition means:
(1) Always running in the dusty area or exposure to salty air
(2) Always running on the bumpy, water-logging, or mountain road
(3) Running in cold areas
(4) The engine frequently suffers long-lasting idle running or short-distance running in the cold season
(5) Frequently use of the brake, frequent hard braking
(6) It often functions as a tow trailer
(7) It is used as a taxi
(8) Running time in urban area with busy traffic and a temperature over 32℃ exceeds 50% of the total running time
(9) Running time at the speed of 120km/h with a temperature over 32℃ exceeds 50% of the total running time
(10) Always running overload.

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Maintenance Notice 5-9

F7 (476ZQA engine) maintenance schedule and content

Maintenance

Interval

Maintenance

Items

Milometer Readings or Months, Whichever Comes Earlier

×1,000 (km)

3.5

1

1

18

.5

26

33.5

41

4

8.

5

56

63.5

71

78.

5

86

Months

6

First

Time

1

8

30

42

54

66

7

8

90

102

114

12

6

138

Engine & Transmission

1. Check if the ribbed belt is with crack, flying

chip, or abrasion and adjust its intensity

I

I

I

I

R

I

2. Check if the ignition cable is damaged

I

I

I

I

I

I

3. Check and

replace the spark

plug

General Service

Condition

Replace every 25,000km

Severe service

Condition

Replacement in Advance as Required

4. Check the crankcase ventilation system

(PCV valve and air hose)

I

I

I

I

I

I

I

I

I

I

I

5. Check if the water-cooling pipe is

damaged and whether its connection is firm

I

I

I

I

I

I

I

I

I

I

I

6. Check the engine coolant level in the

expansion tank

I

I

I

I

I

I

I

I

I

I

I

7. Fill gasoline detergent

I

I

I

I

I

I

I

I

I

I

I

BYD F7-1, F7-2, F7-3

Owner’s Manual

Maintenance Notice 5-10

8. Replace the engine coolant

Replace every two years or 40,000km

9. Replace the

element of the air

filter

General Service

Condition

Clean every 7500km; replace every 20,000km

Severe service

Condition

Replacement in Advance as Required

10. Change the

engine oil

General Service

Condition

Replace during regular maintenance

Severe service

Condition

R: every 5000km

11. Replace the engine oil filter

Replace every time the engine oil is replaced

12. Check the battery accumulator

I

I

I

I

I

I

13. Check the idle speed of the engine

I

I

I

I

I

I

14. Check if the exhaust fitting is leaking air

I

I

I

I

I

I

15. Check the oxygen sensor

I

I

I

I

I

I

16. Check the three-way catalytic converter

I

I

I

I

I

I

17. The fuel filter

Replace every year or 20,000km

18. The fuel tank cover, fuel pipe, and

terminal

I

I

I

19. The active carbon canister

I

I

I

I

I

I

20. Check and
change the gear
oil inside the
manual
transmission

General Service

Condition

I

R

R

I

R

I

Severe service

Condition

R: Time Period Reduction as Required

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Maintenance Notice 5-11

21. Check and

change the gear

oil inside the

automatic

transmission

General Service

Condition

After first 55000km, check every 60000km, and replace if necessary

Severe service

Condition

R: Time Period Reduction as Required

Chassis & Car Body

22. Check hood lock and fastener

Every year

23. Check the fixation screw fastening the

chassis

I

I

I

I

I

I

I

I

I

I

I

I

24. The brake pedal and parking brake

I

I

I

I

I

I

25. The brake pad and brake disc

I

I

I

I

I

I

I

I

I

I

I

I

26. Brake fluid

Replace every two years or 40,000km; check during schedule maintenance

27. The brake pipe and hose

I

I

I

I

I

I

28. Power-assisted steering fluid

Replace after first 40,000km, then replace every two years or 40,000km,

check once every year

29. The steering wheel and draw bar

I

I

I

I

I

I

30. The dust helmet of transmission shaft

I

I

I

I

I

I

31. The ball pin and dust helmet

I

I

I

I

I

I

32. The front and back suspension system

I

I

I

I

I

I

33. The tire and inflation pressure (including

TPMS)

I

I

I

I

I

I

I

I

I

I

I

34. Check the front and back wheel

alignment

I

I

I

I

I

I

BYD F7-1, F7-2, F7-3

Owner’s Manual

Maintenance Notice 5-12

35. Check if the wheel bearing is with

clearance

I

I

I

I

I

I

36. Check the function of the clutch system

and adjust the pedal travel

I

I

I

I

I

I

37. Clutch fluid

Replace every two years or 40,000km; check during schedule maintenance

38. Clutch system piping and hose

I

I

I

I

I

I

39. Cooling or heating system

I

I

I

I

I

I

40. The filter of air conditioning

I

I

I

I

I

I

I

I

I

I

I

I

41. The refrigerant of air conditioning

I

I

I

I

I

I

42. Check the air bag system

I

I

I

I

I

I

43. Check damage to the car body

Every year

Note: 1. Meaning of symbols in the table: I = inspect, adjust or replace; R = replace, change or lubricate
2. Time period for replacement of oil filter can be reduced based on the dirt level of the gasoline engine.
Severe service condition means:
(1) Always running in the dusty area or exposure to salty air
(2) Always running on the bumpy, water-logging, or mountain road
(3) Running in cold areas
(4) The engine frequently suffers long-lasting idle running or short-distance running in the cold season
(5) Frequently use of the brake, frequent hard braking
(6) It often functions as a tow trailer
(7) It is used as a taxi
(8) Running time in urban area with busy traffic and a temperature over 32℃ exceeds 50% of the total running time
(9) Running time at the speed of 120km/h with a temperature over 32℃ exceeds 50% of the total running time
(10) Always running overload.

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Maintenance Notice 5-13

Friendly Tips

Sporadic forward shaking of TID
model is normal.

Warning

Precautions for turbocharged
engine:



476ZQA engine requires
dedicated engine oil (e.g.
FUCHS TITAN EM 5C 1420_TI;
contact BYD authorized
service station for details); do
not add any other engine oil
and any additives.



Do not add any additives to
the coolant, or else it will
impair the corrosion
resistance of the coolant and
even damage the engine.



To ensure that the engine of
your car is always maintained
in good working condition, be
sure to add BYD approved
gasoline detergent in gasoline
on a regular basis. The

specific usage of gasoline
detergent: the gasoline
detergent should be added in
each regular maintenance
(including first 3500km
maintenance); add 1 bottle
(180ml) each time; add the
gasoline detergent after filling
up the tank, and do not add
extra gasoline and additives
before running out the tank of
fuel.



For the vehicles that the
mileage exceeds 20,000 km
and gasoline detergent is used
for the first time, it is
recommended to use 3 bottles
(180ml/bottle) continuously,
and then use 2 bottles
continuously every 7500 km.



In the areas that ethanol
gasoline is used, it is
recommended that use a
bottle (180ml) of gasoline
detergent every other tank of

fuel.

BYD F7-1, F7-2, F7-3 Ow

ner’s Manual

Self Maintenance 6-1

Chapter 6

Self Maintenance

Cooling System

. . . . . . . . …. .6-2

Power Steering Fluid. . . . . . . …. 6-5
Washer. . . . . . . . . . …. 6-5

Battery

. . . . . . . . . . …. .6-6

Tire

. . . . . . . . . . . .…..6-7

Skid Chain

. . . . . . . . . . ..6-9

BYD F7-1, F7-2, F7-3

Owner’s Manual

Self Maintenance 6-2

Check the following items in
accordance with the usage:
1. Engine oil level - once every

month;

2. Engine coolant level - once every

month;

3. Windshield washing liquid - check

the washing liquid in the tank
once every month. If the washing
liquid is frequently used because
of bad weather, check the liquid
level at each refueling;

4. Windshield wiper - check the

wiper once every month. If the
wipers can not scrape the
windshield, check whether there
is abrasion, cracks or other
damage;

5. Automatic transmission - check

the oil level once every month;

6. Brake and clutch - check the

liquid level once every month;

7. Brake pedal - check whether the

brake pedal operates freely;

8. Hand brake - check whether the

handbrake lever operates freely;

9. Battery - check the battery status

and terminal corrosion once every
month;

10. Air-conditioning system - check

the functioning of air conditioning
device weekly;

11. Tires - check tire pressure monthly.

Check the wear conditions of tires
and whether there are embedded
foreign bodies;

12. Windshield defroster - check the

defroster outlet when use heater
and air-conditioner every month;

13. Lights - check the status of

headlights, side lights, tail lamps,
high-mounted brake lamps, turn
signal lamps, front fog lamps, rear
fog lamps, brake lamps and
license plate lamp every month;

14. Doors - check whether the

luggage box cover and all doors
(including rear doors) open/close
freely and lock securely;

15. Horns - check whether the horns

are normal.

Friendly Tips

Do not drive the car before it is
inspected, or else it will result in
serious damage of the car and
personal injury.

Cooling system
483QB engine

Adding engine coolant

Expansion tank

Upper limit
scale mark

Lower limit scale mark

BYD F7-1, F7-2, F7-3

Owner’s Manual

Self Maintenance 6-3

If the coolant level in the expansion
tank is at or below the lower limit (MIN)
scale mark, you should add the
coolant to make the liquid level rise to
the upper limit (MAX) scale mark.
Check whether the cooling system
leaks.
Only use BYD approved coolant. Do
not add any extender. Do not mix
coolants of different brands and
models.

Warning



The coolant may spurt and
result in severe burns if the
radiator cap is opened before
the engine is completely
cooled down.



Before opening the radiator
cap, make sure that the engine
and radiator have cooled down.

1. Confirm that the engine and

radiator have cooled down;

2. Rotate the radiator cover

counterclockwise (do not press
down) until tightened. In this way,
the residual pressure in the cooling
system will be released in full;

3. Press down, and rotate

counter-clockwise at the same time
to remove the radiator cap;

4. The coolant level should reach the

bottom of the neck of the injection
port. If inadequate, add BYD
approved coolant. Pour the coolant
slowly to prevent overflow. If
overflow occurs, immediately clear

all of the discharge, or else it will
damage the components inside the
cabin;

5. Put on the radiator cap, press
down and rotate to the final stop
position;

6. Fill coolant into the expansion tank,
to make the liquid level rise to the
upper limit (MAX) mark, and then put
on the cover of expansion tank.

Radiator cap

Add to this level

Expansion tank

BYD F7-1, F7-2, F7-3

Owner’s Manual

Self Maintenance 6-4

Friendly Tips

Do not add any rust inhibitors or
other additives to the cooling
system; additives may be
incompatible with the coolant or
engine components; it is not
recommended to mix coolants of
different brands and models

476ZQA engine
Adding engine coolant

If the coolant level in the expansion
tank is at or below the lower limit (MIN)
scale mark, you should add the
coolant to make the liquid level rise to

the upper limit (MAX) scale mark.
Check whether the cooling system
leaks.

Only use BYD approved coolant. Do
not add any extender. Do not mix
coolants of different brands and
models.

Warning



The coolant may spurt and
result in severe burns if the
expansion tank is opened
before the engine is completely
cooled down.



Before opening the expansion
tank, make sure that the engine
and expansion tank have
cooled down.

1. Confirm that the engine, radiator

and expansion tank have cooled
down;

2. Rotate the expansion tank cover

counterclockwise (do not press
down) until removed. In this way,
the residual pressure in the cooling
system will be released in full;

3. The coolant level should reach the

bottom of the neck of the injection
port. If inadequate, add BYD
approved coolant. Pour the coolant
slowly to prevent overflow. If
overflow occurs, immediately clear
all of the discharge, or else it will
damage the components inside the
cabin;

Upper limit scale mark

Lower limit scale mark

Add to this level

BYD F7-1, F7-2, F7-3

Owner’s Manual

Self Maintenance 6-5

4. Put on the expansion tank cover,

and rotate to the final stop position;

Friendly Tips

Do not add any rust inhibitors or
other additives to the cooling
system; additives may be
incompatible with the coolant or
engine components; it is not
recommended to mix coolants of
different brands and models

Power steering fluid
Check the level of power steering fluid
at least once every six months, which
should be done when the engine
cools down. Check the reservoir side,
and the oil level should be between
the UPPER LEVEL and LOWER
LEVEL. If it is below the lower limit,
add power steering fluid to make the
oil level rise to the upper level.

Friendly Tips

The power steering pump will be
damaged if the steering wheel is

turned to the left or right end and
locked there.

The reduction of power steering fluid
level indicates that the system may
leak oil; please check the oil level
regularly and inspect the system as
soon as possible.

Warning

Only use Mobil ATF DEXRON ® -
III transmission fluid or ATF
transmission fluid complying with
DEXRON-III as power steering

fluid, while other types of power
steering fluid will damage the
power steering system.



Be careful to add the power
steering oil to avoid
overflowing. Immediately clear
the spilled oil, which will
damage parts of the engine
compartment.



If you do not know how to
check the fluid level and add
fluid, please contact BYD
authorized service station.

Washer
Windshield washer
During normal use, check the liquid
level of the windshield washer
reservoir at least once every month; in
case of bad weather, check the liquid
level of washer reservoir when park
and refuel if the washer is frequently
used.
Windshield washer reservoir is
located in the rear of the right front
headlight of the engine compartment.
Remove the cover and check the level

1.5TI model

Upper level

Lower level

BYD F7-1, F7-2, F7-3

Owner’s Manual

Self Maintenance 6-6

gauge installed on the cover to check
the liquid level of the reservoir.
Add high quality windshield washing
liquid to improve the decontamination
ability and prevent freezing in cold
weather.

When you add the washing liquid to
the reservoir again, use a clean cloth
stained with windshield washing liquid
to clean the wipers of the windshield.
This will help make the blade of the
wipers in good condition.

Warning

Do not fill engine antifreeze or
vinegar and water solvent into the
windshield washer reservoir. The
antifreeze will damage the surface
paint, the vinegar and water
solvents will damage the
windshield washer motor. It is
recommended that use
windshield washing liquid on
market.

Battery
Check the status of the battery
monthly. Examine the color in the
indication window and the terminal
corrosion.

Warning



In normal operation, the battery
may generate explosive
hydrogen. Spark or open flame
may cause the battery
explosion, the energy of which
is sufficient to cause serious

injury or even death. All sparks,
open flames and flammable
materials must be kept away
from the battery.



For battery maintenance, wear
protective clothing and mask,
or ask skilled technician to
operate.



The battery contains strong
corrosive and highly toxic
sulfuric acid (electrolyte). If the
electrolyte splashes into eyes
or on the skin, it will cause
severe burns. When handling
batteries or operating in the
vicinity, wear protective
clothing and goggles.



Do not drink the electrolyte, or
else it will cause fatal
poisoning if

measures aren’t

taken immediately.



The battery should be placed
out of the reach of the children.

Liquid level