Silnik BKD.
WI-XML
Audi A3
Strona 1 z 15
Current Flow Diagram
No. 77 / 1
Edition 12.2004
2,0 l - Diesel engine (100 kW - unit injectors - 4 cylinder), engine code AZV
from model year 2005
2,0 l - Diesel engine (103 kW - unit injectors - 4 cylinder), engine code BKD
from model year 2005
Notes:
For information concerning
Position of relays and fuses
Multi-pin connections
Control units and relays
Earth connections
→ List of Fitting Locations!
For information concerning
Fault Finding Programs
→ guided fault finding
WI-XML
Audi A3
Strona 2 z 15
No. 77 / 2
Current Flow Diagram
Earth points, earth connections
- Earth point, lower part of left A-pillar
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368
369
607
655
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- Earth connection -1-, in engine compartment wiring harness
- Earth connection -1-, in main wiring harness
- Earth connection -3-, in main wiring harness
- Earth connection -4-, in main wiring harness
- Earth point, on left in plenum chamber
- Earth point, on left headlight
WI-XML
Audi A3
Strona 3 z 15
No. 77 / 3
Current Flow Diagram
Terminal 15 voltage supply relay, cruise control system switch,
ignition/starter switch
D
- Ignition/starter switch
E45
- Cruise control system switch
J329 - Terminal 15 voltage supply relay
J519 - Onboard supply control unit
J527 - Steering column electronics control unit
SB6
- Fuse 6 on fuse holder
SB16 - Fuse 16 on fuse holder
T8h
- 8-pin connector, black (connector F)
T11c - 11-pin connector, brown (connector D)
T20b - 20-pin connector, black (connector A)
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
- Earth connection 1, in main wiring harness
366
369
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- Earth connection 4, in main wiring harness
- For models with cruise control system only
WI-XML
Audi A3
Strona 4 z 15
No. 77 / 4
Current Flow Diagram
Terminal 50 voltage supply relay
B
- Starter
J248 - Diesel direct injection system control unit
J519 - Onboard supply control unit
J527 - Steering column electronics control unit
J682 - Terminal 50 voltage supply relay
SB15 - Fuse 15 on fuse holder
T8h
- 8-pin connector, black (connector F)
T11b - 11-pin connector, black (connector A)
T12e - 12-pin connector, black (connector G)
T14a - 14-pin connector, black, near relay carrier electronics box
T20b - 20-pin connector, black (connector A)
T26
- 26-pin connector, black, on electronics box, in engine
compartment (connector K)
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
- Earth connection 1, in main wiring harness
366
B239
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- Positive connection 1 (50), in interior wiring harness
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Applicable Current Flow Diagram with battery in engine
compartment
- For models with cruise control system only
WI-XML
Audi A3
Strona 5 z 15
No. 77 / 5
Current Flow Diagram
Brake light switch, brake pedal switch, clutch travel sender, fuses
on fuse holder
F
- Brake light switch
F63
- Brake pedal switch
G476 - Clutch position sender
J248 - Diesel direct injection system control unit
J519 - Onboard supply control unit
SA6
- Fuse 6 on fuse holder on battery
SB7
- Fuse 7 on fuse holder
SC13 - Fuse 13 on fuse holder
SC27 - Fuse 27 on fuse holder
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
T94
- 94-pin connector, black (connector B)
- Earth connection 7, in main wiring harness
372
B272
B316
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- Positive connection (30), in main wiring harness
- Positive connection 2 (30a), in main wiring harness
-
Applicable Current Flow Diagram with battery in engine
compartment
- For models with manual gearbox only
WI-XML
Audi A3
Strona 6 z 15
No. 77 / 6
Current Flow Diagram
Fuses on fuse holder
C
- Alternator
J248 - Diesel direct injection system control unit
J519 - Onboard supply control unit
SB40 - Fuse 40 on fuse holder
SC6
- Fuse 6 on fuse holder
SC29 - Fuse 29 on fuse holder
T2u
- 2-pin connector, brown, in front left engine compartment
T4
- 4-pin connector, black, in front left engine compartment
T8h
- 8-pin connector, black (connector F)
T16a - 16-pin connector, black (connector E)
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
T94
- 94-pin connector, black (connector B)
- Positive connection (15), in main wiring harness
B273
B278
B335
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- Positive connection 2 (15a), in main wiring harness
- Connection 1 (54), in main wiring harness
-
Applicable Current Flow Diagram with battery in engine
compartment
- For models without air conditioner only
- For models with air conditioning system only
WI-XML
Audi A3
Strona 7 z 15
Current Flow Diagram
No. 77 / 7
Terminal 30 voltage supply relay, unit injector valves
J248 - Diesel direct injection system control unit
J317 - Terminal 30 voltage supply relay
N240 - Unit injector valve, No. 1 cyl.
N241 - Unit injector valve, No. 2 cyl.
N242 - Unit injector valve, No. 3 cyl.
N243 - Unit injector valve, No. 4 cyl.
SB11 - Fuse 11 on fuse holder
SB26 - Fuse 26 on fuse holder
T10c - 10-pin connector, black, in engine compartment
T26
- 26-pin connector, black, on electronics box, in engine
compartment (connector K)
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
- Earth connection 1, in engine compartment wiring harness
85
D95
D104
E48
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- Connection (injectors), in engine compartment wiring harness
- Positive connection 2 (30a), in engine compartment wiring
harness
- Connection (injectors), in injection system wiring harness
WI-XML
Audi A3
Strona 8 z 15
Current Flow Diagram
No. 77 / 8
Glow plugs, automatic glow period control unit
J179 - Automatic glow period control unit
J248 - Diesel direct injection system control unit
Q10
- Glow plug 1
Q11
- Glow plug 2
Q12
- Glow plug 3
Q13
- Glow plug 4
SB51 - Fuse 51 on fuse holder
T10c - 10-pin connector, black, in engine compartment
T14a - 14-pin connector, black, near relay carrier electronics box
T26
- 26-pin connector, black, on electronics box, in engine
compartment (connector K)
T94
- 94-pin connector, black (connector B)
- Earth connection 1, in engine compartment wiring harness
85
D108
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- Connection 6, in engine compartment wiring harness
WI-XML
Audi A3
Strona 9 z 15
Current Flow Diagram
No. 77 / 9
Fuel pump, temperature sender
G
- Fuel gauge sender
G6
- Fuel system pressurisation pump
G62
- Coolant temperature sender
G81
- Fuel temperature sender
G83
- Radiator outlet coolant temperature sender
J17
- Fuel pump relay
J248 - Diesel direct injection system control unit
SB9
- Fuse 9 on fuse holder
T26
- 26-pin connector, black, on electronics box, in engine
compartment (connector K)
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
- Earth connection 3, in main wiring harness
368
401
D108
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- Earth connection (sender earth), in interior wiring harness
- Connection 6, in engine compartment wiring harness
WI-XML
Audi A3
Strona 10 z 15
Current Flow Diagram
No. 77 / 10
Heater element for crankcase breather, intake manifold flap motor
J248 - Diesel direct injection system control unit
N79
- Heater element for crankcase breather
SB8
- Fuse 8 on fuse holder
SB27 - Fuse 27 on fuse holder
T4d
- 4-pin connector, black, on radiator fan (front end)
T14
- 14-pin connector, black, near longitudinal member, front left
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
V157 - Intake manifold flap motor
- Earth connection 2, in engine compartment wiring harness
131
673
B320
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- Earth point 3, on front of left longitudinal member
- Positive connection 6 (30a), in main wiring harness
- See applicable Current Flow Diagram: Radiator fan
- For models without heater element only
- For models with heater element only
WI-XML
Audi A3
Strona 11 z 15
Current Flow Diagram
No. 77 / 11
Air mass meter, exhaust gas recirculation valve, charge pressure
control solenoid valve
G70
- Air mass meter
J248 - Diesel direct injection system control unit
N18
- Exhaust gas recirculation valve
N75
- Charge pressure control solenoid valve
N213 - Exhaust gas recirculation valve 2
SB10 - Fuse 10 on fuse holder
SB42 - Fuse 42 on fuse holder
T6f
- 6-pin connector, black, on valve block
T14a - 14-pin connector, black, near relay carrier electronics box
T26
- 26-pin connector, black, on electronics box, in engine
compartment (connector K)
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
- Connection 12, in engine compartment wiring harness
D114
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WI-XML
Audi A3
Strona 12 z 15
Current Flow Diagram
No. 77 / 12
Charge air pressure sender, engine speed sender, Hall sender
G28
- Engine speed sender
G31
- Charge air pressure sender
G40
- Hall sender
G42
- Intake air temperature sender
G79
- Accelerator position sender
G185 - Accelerator position sender -2J248 - Diesel direct injection system control unit
T14
- 14-pin connector, black, near longitudinal member, front left
T60
- 60-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
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WI-XML
Audi A3
Strona 13 z 15
Current Flow Diagram
No. 77 / 13
Drive train CAN bus, K-diagnosis wiring
J248 - Diesel direct injection system control unit
J533 - Data bus diagnostic interface
J743 - Mechatronics for direct shift gearbox
T16
- 16-pin connector, black, dash panel, driver side, bottom left
(diagnostic connector)
T20d - 20-pin connector, yellow (connector A)
T20e - 20-pin connector, black (connector A)
T94
- 94-pin connector, black (connector B)
- Connection 1 (drive train CAN bus, high), in main wiring
B383
harness
B390
B444
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- Connection 1 (drive train CAN bus, low), in main wiring
harness
- Connection 1 (diagnosis), in main wiring harness
- for models with direct shift gearbox (02E) only
WI-XML
Audi A3
Strona 14 z 15
Current Flow Diagram
No. 77 / 14
Fuel gauge, reserve fuel warning lamp
G1
- Fuel gauge
J285 - Control unit in dash panel insert
J533 - Data bus diagnostic interface
K16
- Reserve fuel warning lamp
SB24 - Fuse 24 on fuse holder
T20d - 20-pin connector, yellow (connector A)
T32
- 32-pin connector, blue (connector A)
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
- Earth connection 4, in main wiring harness
369
B277
B301
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- Positive connection 1 (15a), in main wiring harness
- Positive connection 5 (30), in main wiring harness
WI-XML
Audi A3
Strona 15 z 15
Current Flow Diagram
No. 77 / 15
Oil pressure switch, oil level and oil temperature sender
F1
- Oil pressure switch
G3
- Coolant temperature gauge
G266 - Oil level and oil temperature sender
J285 - Control unit in dash panel insert
K2
- Alternator warning lamp
K3
- Oil pressure warning lamp
K28
- Coolant temperature and coolant shortage warning lamp
K31
- Cruise control system warning lamp
K149 - Engine electronics warning lamp
SB17 - Fuse 17 on fuse holder
SB39 - Fuse 39 on fuse holder
T6
- 6-pin connector, black, near longitudinal member, front left
T14
- 14-pin connector, black, near longitudinal member, front left
T32
- 32-pin connector, blue (connector A)
T40
- 40-pin connector, black on electronics box, in engine
compartment (connector J)
- Earth connection 1, in main wiring harness
366
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401
B299
***
- Earth connection 4, in main wiring harness
- Earth connection (sender earth), in interior wiring harness
- Positive connection 3 (30), in main wiring harness
- For models with extended servicing intervals (ESI) only