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BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 2 / 23
Introduction
The BYD AUTO Technical Monthly is dedicated to providing better technical services and supports
for BYD service centers and/ or service shops. This monthly contains „TECHNOLOGY NOTICE‟
„TROUBLESHOOTING‟ AND „SPARE PARTS‟. It can help distributors, service centers and/or
service shops settle technical problems and order spare parts rightly. All people should
understand it clearly.
If any comments or suggestions about monthly, you can contact BYD AUTO by following ways:
1. Mailbox:BYDAUTOSERVICE@BYD.COM;
2. Tel: +86-755-89888888 ext.64555;
3. Service Engineers for your market.
BYD AUTO CO. LTD.,
2012-8-31
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 3 / 23
CATALOG
TECHNOLOGY NOTICE .......................................................................................... 4
BYD vehicles‟ shock absorber oil leakage, abnormal sound determination ..............4
Judging handbook of shock absorber abnormal noise-For all vehicles of BYD .......7
TROUBLESHOOTING............................................................................................ 11
Troubleshooting— False Over-heating in F3 AT ....................................................................11
SPARE PARTS ...................................................................................................... 13
Distinguish—Spare parts of F0 2012 Model Type .................................................................13
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 4 / 23
TECHNOLOGY NOTICE
BYD vehicles’ shock absorber oil leakage, abnormal sound
determination
1. Purpose and applicable range:
For uniform shock absorber oil leakage, abnormal sound fault determination and acceptance in
warranty, the technology notice is hereby formulated.
This notice is suitable for BYD auto co., LTD., and 4S shop fault parts‟ inspection in warranty.
This notice is suitable for the hydraulic shock absorber produced be BYD automobile co., LTD.
2. Shock absorber oil leakage fault determination
1) Attention
i. Shock absorber oil seepage is a kind of normal phenomenon. In order to achieve the function
of the shock absorber and use requirements, micro cracks exist on the shock absorber
connecting rod surface (below), which can store a certain amount of oil forming oil film on the
surface, thus wetting rod, wet friction is made between connecting rod and oil seal, in order to
protect oil seal and prevent abnormal sound caused by dry friction, overall improve the use of
shock absorber performance, and prolong service life, therefore, oil seepage oil is allowed,
which does not affect the use of shock absorber.
Connecting rod surface microcrack
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 5 / 23
ii. During the oil leakage criterion of shock absorber, please pay special attention to judge
whether water stain or not, because the rain, snow and ice melt or after washing the car would
affect your test results.
2) Shock absorber oil leakage appearance determination method:
i. There‟s no obvious failure occurs on shock absorber, and oil pollution exists on the surface,
but no oil droplets and no lots of sludge formatted. And the oil pollution stain leaking from oil
cylinder seal doesn‟t reach the spring tray place (not reach 50 mm if no spring tray), hence
define it as oil seepage, see illustrations below:
ii. The oil pollution stain leaking from oil cylinder seal does reach even over the spring tray place
(reach or over 50 mm if no spring tray), hence define it as oil leakage, see illustrations below:
Seal
cage
Spring
tray
Bottom mounting
bracket 50 mm
Oil seepage, not
replace 50 mm
Oil seal to spring tray
Spring tray Seal
cage
50 mm
Oil seepage, not
replace
Oil leakage, replace Oil leakage, replace
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 6 / 23
iii. The scope from the oil cylinder seal to the spring tray (50 mm from the seal downward if no
spring tray), peak-shaped oil drip trace can‟t be existed, otherwise, define it as oil leakage,
see illustrations below:
iv. All welding and static sealing parts located on the edge of oil cylinder seal are not allowed to
appear oil leakage, otherwise they must be replaced.
Note: Regard rear shock absorber of series 3 auto models as no spring tray ones to
determine.
3. shock absorber abnormal sound fault determination method
1) Check the tire pressure: Automobile suspension overall damping performance would be
reduced if the tire pressure is too high, check the tires using condition and keep the tire
pressure standard;
2) Check shock absorber connecting joints: Looseness of transverse stabilizer bar rod & ball
head assembly, the oscillating arm next ball head, bolt between the horizontal stabilizer bar
rod & ball head assembly and the former damping connection parts, bolt between the upper
part and lower part of shock absorber and etc all will lead to vehicles‟ abnormal noise during
driving, such as a looseness, the bolt with the moment requirements need to be fastened;
3) Check shock absorber spiral spring: If there‟s gap between the shock absorber spiral spring
with the upper and lower spring seat, or contact between the spiral spring bracket ring with
the first working ring car while the car is derived on the concave road with holes, may have
collision sound, then replace shock absorber spiral spring;
4) Check the connecting bracket assembly of front shock absorber: Check the connecting
bracket assembly if there‟s the "click, click" or other noise while the vehicle is steering.
50 mm Oil leakage, replace Oil leakage, replace
BYD AUTO Technical Monthly
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Replace the upper connecting bracket, if the shock absorber upper part sends out "click,
click" sound, while shaking the connecting bracket assembly top of shock absorber.
Judging handbook of shock absorber abnormal noise-For all vehicles of BYD
Abnormal noise of shock absorber-judgment of the vehicle: before judging, check all the related chassis parts and find the source.
NO. Possible causes of
abnormal sound
Checking methods solution
1
No previous collision,
damage, deformation. The
appearance of the wheels and
hubs is normal.
By sight
replace the damaged
spare parts
2
Tire pressure is too high or
too low
Check if the tire pressure is
normal
Adjust tire pressure
Abnormal sound “kaka”
caused by the friction of
wheel trim cover and the side
of tires
Press the trim board, check if
there is fit clearance and friction
between the trim board and the
side of tires
Increase the gasket
3
Fastening nuts and bolts on
the chassis loosen
Fasten the nuts and bolts to
check if their torque has
decreased. If their torque is
lower than the standard or there
is no torque, it means that nuts
and bolts loosen
Fasten nuts and bolts
Bolts on the front/rear axle
loosen, driving abnormal
sound, metal impact sound
Abnormal noise generates
when shaking the car body
transversely. No abnormal
noise when shaking the car
body perpendicularly.
Fastening torque
4
Ball head of swing arm loosen
or friction noise
Lift the car, hold the wheel and
then rock it, check if the ball
head of front swing arm has
loosened or there is friction
noise
replace the swing
arm
5
All bushings assembly and
other rubber parts damaged
or loosened
Check all the rubber parts if
they have damaged or
loosened
replace the damaged
parts
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 8 / 23
6
Ball pins of stabilizer bar and
steering link loosen or
damage
1.whether the steering wheel
vibrates when controlling it
2.remove the connecting nuts,
shake the ball pin and check the
ball head
replace relative spare
parts
Stabilizer bar bushings creak Press the engine hood heavily Replace rubber
bushings
7
Steering with sudden
abnormal noise, hub bearing
with abnormal noise
Shake the car body when it is in
stationary state
Replace hub
bearings
Continuous abnormal noise
when steering, steering gear
with noise
Steering in situ in stationary
state
Fasten the steering
connecting bolts.
Other treatment if the
bearings loosen
Steering abnormal noise
No abnormal noise with cold
start. “Tweets” generates after
10 minutes driving. Steering in
situ with abnormal noise after
stopping
8
Heat insulation sheet with
abnormal noise
Check if the heat insulation
sheet has deformed and related
with brake disc
Adjust the clearance
between heat
insulation sheet and
brake disc
Main pin of brake loosens, its
abnormal noise is similar to
that of chassis torque loosen
Clear metal clicking noise
appears in low-speed driving
and backing a car. No abnormal
noise when pressing the car in
vertical stationary state
Coat lubricating oil
and then tighten the
torque
Braking with abnormal noise Harsh noise Polish the brake disc
9 The fuel in the tank vibrates Full up the tank, and check if
there is still abnormal noise
Normal sound
Metal clicking noise generates
because of the loosening of
tank rivet
Check the rivet joint of fuel tank
Coat glue on the rivet
joint
11 Connecting bolts of shock
absorber and steering
knuckle loose
Tighten it and check
Tighten the nuts
(bolts)
12 Connecting bolts of shock
absorber and car body loose
Tighten it and check Tighten the nuts
13 fault mounting place of helical
spring
Check the spring if it is mounted
on the spring seat or side frame
Adjust the spring
14 Steering
knuckle with abnormal noise
Shake the steering knuckle
when driving with abnormal
noise (F6 only)
Replace
steering knuckle
BYD AUTO Technical Monthly
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15 Stabilizer bar, rear side frame
with abnormal noise
Check the bolts of two sides of
frame
Tighten the nuts
16
Supporting cushion, buffer
block and dust cover damage
Remove the absorber, and
check if the supporting cushion,
buffer block and dust cover has
damaged
Replace supporting
cushion, buffer block
and dust cover
17 Front (left or lower right) car
body with abnormal noise
when steering in stationary
state
Check if the connecting bolts of
steering gear loose
Adjust bolts of
steering gear
18 Improper torque of tighten
nuts of shock absorber
causes abnormal noise
Test the torque according to the
requirement with a wrench
Reassemble it,
tighten the nuts
according to the
standard torque
Abnormal noise of shock absorber-judgment of the vehicle: eliminate all the failures above, investigate the abnormal noise of shock absorber as following chart.
Noise
Type Phenomenon
Description
Judging Method conclusion
Abnormal
noise in
driving
Sound “chichichi…”
We can hear the sound in
normal circumstance when the
vehicle is driving on gentle slope
at a low speed.
The sound similar to that
of airflow is caused by the
air working inside the
shock absorber. It‟s
normal.
Sound
“dongdongdong…”
We can hear the sound in
normal circumstance when the
vehicle is driving on gentle slope
at a low speed.(not impact sound)
Continuous clear sound
“Dong…Dong” may be
abnormal noise of the
shock absorber.
Sound ”jijiji…”
We can hear the sound in
normal circumstance when the
vehicle is driving on gentle slope
at a low speed.
Abnormal noise still exists
after 5-8 minutes‟ driving.
Sound “sisisi…”
We can hear the sound in
normal circumstance when the
vehicle is driving on large slope at
a low speed.
Normal sound caused by
rapid flow of fluid inside
the shock absorber.
Check if the springs
collide obviously
Replace the helical spring Running-on and collision
of helical spring.
The Sound is similar to
that of the friction
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 10 / 23
Creak
We can hear the sound when the
vehicle is driving on large slope at
a low speed, especially in cold
day, more seriously so long as the
vehicle knocks down, such as
sudden brake.
between metal and
rubber. Check all the
rubber-metal hinged part
on the chassis, especially
the position of stabilizer
bar layering bushings.
Metal crash won‟t exist
except the shock
absorber is destructively
damaged.
Dust
cover
with
abnormal
noise
Scrape forms because
of the friction between
the plastic dust cover
and the wall of oil
reservoir
Keep the car stationary on level
ground. Press the rear of the car
and observe if the dust cover
collides with the oil reservoir
Remove the dust cover
and observe it after it
rotates at an angle if
obvious noise forms by
the friction of the dust
cover and the wall of oil
reservoir. If friction places
are the same, it means
bad tolerance of the car
body and rear torque
beam. If the friction
places are change as the
angle does, it means that
we need to replace the
dust cover.
Springs
collide
with
abnormal
noise
Helical spring collide
Check if the springs collide (little
possibility)
Replace helical springs.
More than 1.5 parallel
circles means that the
vehicle overloaded
heavily
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 11 / 23
TROUBLESHOOTING
Troubleshooting— False Over-heating in F3 AT
Malfunction Description:
Dashboard water temperature gauge goes up abruptly, and up to the alert zone finally.
Malfunction Analysis:
Checking the whole cooling system, no problems found. Using BYD Diagnostic (ED300/ED400) to
read the data when the malfunction appeared shows that it‟s normal, it is not real over-heating.
Then check the water temperature sensor it‟s OK too.
At last, we analyzed and found that it‟s the poor ground wire that finally leads the dashboard water
temperature gauge in disorder.
Maintenance Process:
BYD AUTO Technical Monthly
All rights reserved by BYD AUTO 12 / 23
1 Please kindly confirm that there is no additional electronics in this vehicle.
2 Please check the ground wiring between power train (Engine & Transmission) and Body. But the
simplest way to solve this malfunction is connecting a new ground wiring between Engine and
Car Body.
3 Check the dashboard ground wiring.
4 Replace the dashboard.
5 Replace the wire harness of dashboard.
Applicable Model: F3 AT
BYD AUTO Technical Monthly
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SPARE PARTS
Distinguish—Spare parts of F0 2012 Model Type
No SAP Part Name Suitable Model
1 10136857-00 TRANSMISSION
ASSY
Former Model
2 10782063-00 TRANSMISSION
ASSY
2012 Model
No neutral gear switch Add neutral gear switch
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10124735-00 BRAKE CLUTCH PEDAL ASSY Former Model
2 10739854-00 BRAKE CLUTCH PEDAL ASSY 2012 Model
No clutch switch Add clutch switch
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10150232-00 LOCK ASSY.,BACK DOOR Former Model
2 10756202-00 LOCK ASSY.,BACK DOOR 2012 Model
No induction switch Add induction switch
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10209168-00 START BUTTON 2012 Model
2 10763200-00 CONTROLLER ASSY., SMART KEY
SYSTEM
2012 Model
CONTROLLER ASSY., SMART KEY SYSTEM
2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10007906-00 CENTRAL CONTROL MODULE WITH
TELECONTROL
Former Model
2 10763201-00 BODY CONTROL MODULE ASSY 2012 Model
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10274341-00 CENTRAL DETECTING ANTENNA ASSY. 2012 Model
2 10209162-00 INNER DETECTING ANTENNA ASSY 2012 Model
3 10763398-00 OUTER DETECTING ANTENNA ASSY 2012 Model
4 10763399-00 OUTER JIGGLE SWITCH ASSY 2012 Model
5 10834835-00 REMOTE KEY 2012 Model
6 10303138-00 CARD ELECTRONIC KEY 2012 Model
7 10295381-00 KEY HIGH-FREQUENCY RECEIVER
MODULE
2012 Model
8 10031059-00 ELECTRIC STEERING COMULN LOCK
ASSY.
2012 Model
CENTRAL DETECTING ANTENNA ASSY. INNER DETECTING ANTENNA ASSY
BYD AUTO Technical Monthly
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Location: Left front door assy. Location: Left front door assy.
OUTER DETECTING ANTENNA ASS OUTER JIGGLE SWITCH ASSY
REMOTE KEY CARD ELECTRONIC KEY
KEY HIGH-FREQUENCY RECEIVER MODULE ELECTRIC STEERING COMULN LOCK ASSY.
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10762066-00 REAR LOGO ASSY MOUNTING SEAT, LED 2012 Model
2 10762063-00 REAR LOGO ASSY MOUNTING SEAT, LED 2012 Model
Suitable Type: G-I & GL-I Suitable Type: GLX-I
No SAP Part Name Suitable Model
1 10238197-00 REAR LOGO Former Model
2 10776088-00 REAR LOGO ASSY, LED 2012 Model
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10402937-00 LOWER SHIELD ASSY.,COMBINATION
SWITCH
Former Model
2 10782864-00 LOWER GUARD BOARD ASSY.,
COMBINATION SWITCH
2012 Model
Suit for Mechanical Ignition Key Suit for Start Button
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10314599-00 DECORATING COVER,WHEEL Former Model
2 10782064-00 WHEEL HUB CAP ASSY 2012 Model
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10143840-00 UPPER SHIELD ASSY.,INSTRUMENT
PANEL
Former Model
2 10070157-00 UPPER SHIELD ASSY.,INSTRUMENT
PANEL
2012 Model
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10143862-00 CENTRAL CONTROL PANEL ASSY. Former Model
2 10725182-00 MIDDLE COVER BOARD ASSY,
INSTRUMENT PANEL
2012 Model
No vent New design vent
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10048003-00 DRIVER SEAT ASSY Former Model
2 10772865-00 DRIVER SEAT ASSY 2012 Model
No bracket and key bag Add bracket and key bag
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10048004-00 PASSENGER SEAT ASSY Former Model
2 10772866-00 PASSENGER SEAT ASSY 2012 Model
No bracket and key bag Add bracket and key bag
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10249838-00 GLASS,BACK DOOR
(WITHOUT ELECTRICALLY HEATED WIRE
AND WIPER HOLE)
Former Model
2 10774237-00 BACK DOOR GLASS 2012 Model
No mounting hole for LED LOGO Mounting hole for LED LOGO
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10249839-00 GLASS,BACK DOOR(WITH
ELECTRICALLY HEATED WIRE AND
WIPER HOLE)
Former Model
2 10774236-00 BACK DOOR GLASS 2012 Model
No mounting hole for LED LOGO Mounting hole for LED LOGO
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10141832-00 FRONT DOOR ASSY.,L Former Model
2 10851763-00 FRONT DOOR ASSY.,L 2012 Model
No mounting hole for micro switch Mounting hole for micro switch
Former Model 2012 Model
No SAP Part Name Suitable Model
1 10782012-00 SPEEDOMETER AND INSTRUMENT
PANEL JUNCTION BOX ASSY
2012 Model/G-I
2 10782013-00 COMBINATION INSTRUMENT ASSY 2012Model/GLX-I
Add key indicator, without SRS and ABS Add key indicator, with SRS and ABS
Former Model 2012 Model
BYD AUTO Technical Monthly
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No SAP Part Name Suitable Model
1 10781782-00 ENGINE WIRE 2012 Model/UAES
2 10781788-00 FRONT DOOR WIRE, L 2012 Model
3 10782893-00 INSTRUMENT PANEL WIRE 2012 Model/G-I
4 10782895-00 INSTRUMENT PANEL WIRE 2012 Model/GL-I
5 10782894-00 INSTRUMENT PANEL WIRIE 2012 Model/GLX-I
6 10781783-00 FLOOR WIRE 2012 Model G-I/GL-I
7 10781779-00 FLOOR WIRE 2012 Model/GLX-I
8 10781781-00 WIRING HARNESS, ENGINE
CABIN
2012 Model/G-I
9 10781784-00 WIRING HARNESS, ENGINE
CABIN
2012 Model/GL-I
10 10781780-00 WIRING HARNESS, ENGINE
CABIN
2012 Model/GLX-I
11 10775870-00 REAR BACK DOOR WIRE, L 2012 Model/GLX-I
12 10775874-00 REAR BACK DOOR WIRE, L 2012 Model G-I/GL-I
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