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AUDI A3 2004 – Audi A3 (1.6 l litre fuel injection engine, 74 kW, Simos, 4-cylinder) engine codes APF . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2004 - Simos control unit - fuel pump relay - injectors - Hall sender - intake manifold change-over valve - coolant temperature senders



Wiring Diagram  AUDI A3 2004 - Simos control unit - fuel pump relay - injectors - Hall sender - intake manifold change-over valve - coolant temperature senders https://portal-diagnostov.com/license.html
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ABattery
BStarter
CAlternator
C1Voltage regulator
DIgnition/starter switch
S131Fuse 1 in fuse box/battery
S132Fuse 2 in fuse box/battery
S133Fuse 3 in fuse box/battery
S134Fuse 4 in fuse box/battery
S138Fuse 5 in fuse box/battery
S1621 in fuse box/battery
S1632 in fuse box/battery
S1643 in fuse box/battery
T2f2-pin connector, wiring duct, in engine compartment, left
T3e3-pin connector, black, on main fuse box/battery
T6m6-pin connector, brown, in plenum chamber
   2 Earth strap, gearbox - body
   10 Earth point, in plenum chamber
   12 Earth point, in engine compartment, left
   85 Earth connection -1-, in engine compartment wiring harness
   D97 Connection (50), in engine compartment wiring harness, right

Wiring Diagram AUDI A3 2004 - Simos control unit - knock sensor - engine speed sender



Wiring Diagram  AUDI A3 2004 - Simos control unit - knock sensor - engine speed sender https://portal-diagnostov.com/license.html
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DIgnition/starter switch
F88Power assisted steering pressure switch
G2Coolant temperature sender
G40Hall sender
G62Coolant temperature sender
J17Fuel pump relay
J361Simos control unit
N30Injector, cylinder 1
N31Injector, cylinder 2
N32Injector, cylinder 3
N33Injector, cylinder 4
N79Heater element (crankcase breather)
N156Intake manifold change-over valve
T6m6-pin connector, brown, in plenum chamber
T1010-pin connector, white, in plenum chamber
T1414-pin connector, wiring duct, in engine compartment, left
   85 Earth connection -1-, in engine compartment wiring harness
   269 Earth connection (sender earth) -1-, in dash panel wiring harness
   A100 Connection -2- (87), in dash panel wiring harness
   A125 Connection (crash signal), in dash panel wiring harness
   B155 Connection -2- (DC), in interior wiring harness
   D140 Connection (injectors), in engine prewiring wiring harness
*Export versions, only northern countries

Wiring Diagram AUDI A3 2004 - Simos control unit - throttle valve control unit - valve and potentiometer for exhaust gas recirculation



Wiring Diagram  AUDI A3 2004 - Simos control unit - throttle valve control unit - valve and potentiometer for exhaust gas recirculation https://portal-diagnostov.com/license.html
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F265Map-controlled engine cooling thermostat
G28Engine speed sender
G61Knock sensor 1
J361Simos control unit
J271Current supply relay
T2m2-pin connector, wiring duct, in engine compartment, left
T3b3-pin connector, black, in engine compartment
T3d3-pin connector, grey, in engine compartment
T6m6-pin connector, brown, in plenum chamber
T10x10-pin connector, orange, in plenum chamber
T1414-pin connector, wiring duct, in engine compartment, left
   85 Earth connection -1-, in engine compartment wiring harness
   A45 Connection (engine speed signal), in dash panel wiring harness
   A108 Connection (speed signal), in dash panel wiring harness
   D52 Positive (+) connection (15a) , in engine compartment wiring harness
   G9 Connection, in Simos wiring harness
*Relay in plenum chamber

Wiring Diagram AUDI A3 2004 - Simos control unit - accelerator pedal position senders - cruise control system switch - brake light switch - clutch pedal switch



Wiring Diagram  AUDI A3 2004 - Simos control unit - accelerator pedal position senders - cruise control system switch - brake light switch - clutch pedal switch https://portal-diagnostov.com/license.html
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G186Throttle valve drive
G187Throttle valve drive angle sender -1-
G188Throttle valve drive angle sender -2-
G212Exhaust gas recirculation potentiometer
J361Simos control unit
J338Throttle valve control unit
N18Exhaust gas recirculation valve
T1010-pin connector, white, in plenum chamber
   85 Earth connection -1-, in engine compartment wiring harness

Wiring Diagram AUDI A3 2004 - Simos control unit - lambda probes with additional heater - air mass meter - activated charcoal filter system solenoid valve



Wiring Diagram  AUDI A3 2004 - Simos control unit - lambda probes with additional heater - air mass meter - activated charcoal filter system solenoid valve https://portal-diagnostov.com/license.html
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E45Cruise control system switch
FBrake light switch
F36Clutch pedal switch
G79Accelerator pedal position sender
G185Accelerator pedal position sender -2-
J361Simos control unit
T4c4-pin connector, behind console
T77-pin connector, behind steering column switch trim
T1010-pin connector, white, in plenum chamber
T10e10-pin connector, black, in plenum chamber
T10g10-pin connector, blue, in plenum chamber
   B135 Connection -1- (15a), in interior wiring harness
   B185 Connection -2- (54), in interior wiring harness
*Only models with cruise control system
**Only models with manual gearbox

Wiring Diagram AUDI A3 2004 - Simos control unit - ignition system - secondary air pump



Wiring Diagram  AUDI A3 2004 - Simos control unit - ignition system - secondary air pump https://portal-diagnostov.com/license.html
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E87Control and display unit for air conditioner
G39Lambda probe
G70Air mass meter
G130Lambda probe downstream of catalytic converter
J217Automatic gearbox control unit
J293Radiator fan control unit
J361Simos control unit
N80Activated charcoal filter system solenoid valve 1
N112Secondary air inlet valve
T4m4-pin connector, in engine compartment, right
T6m6-pin connector, brown, in plenum chamber
T6o6-pin connector, in engine compartment, right
T10x10-pin connector, orange, in plenum chamber
Z19Lambda probe heater
Z29Lambda probe 1 heater, downstream of catalytic converter
   D80 Positive (+) connection (87a), in engine compartment wiring harness
*Only models with air conditioner
**Only models with automatic gearbox

Wiring Diagram AUDI A3 2004 - Simos control unit - fuse box - radiator fan



Wiring Diagram  AUDI A3 2004 - Simos control unit - fuse box - radiator fan https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
J104ABS with EDL control unit
J316Secondary air system relay
J361Simos control unit
NIgnition coil 1
N122Final output stage
N128Ignition coil 2
PSpark plug connector
QSpark plugs
T1010-pin connector, white, in plenum chamber
T1414-pin connector, wiring duct, in engine compartment, left
V101Secondary air pump motor
   10 Earth point, in plenum chamber
   281 Earth connection -1-, in engine prewiring wiring harness
   A15 Positive (+) connection (15), in dash panel wiring harness
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   E14 Connection -1-, in Simos wiring harness
*Only models with automatic gearbox
**Relay in plenum chamber
CAN bus (data wire)

Wiring Diagram AUDI A3 2004 - Simos control unit - fuse box - radiator fan



Wiring Diagram  AUDI A3 2004 - Simos control unit - fuse box - radiator fan https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
E159Fresh air/air recirculating flap switch
F269Switch for temperature selection rotary knob
G83Coolant temperature sender, radiator outlet
G267Temperature selection rotary knob potentiometer
J293Radiator fan control unit
J361Simos control unit
N147Two-way valve for coolant cut-off valve
T8d8-pin connector, black, behind console
T10a10-pin connector, green, in plenum chamber
V7Radiator fan
   11 Earth point, in battery box
   85 Earth connection -1-, in engine compartment wiring harness
   A98 Positive (+) connection -4- (30a), in dash panel wiring harness
   B156 Positive (+) connection -4- (30a), in interior wiring harness
   L48 Connection (15a), in heater (Thermotronic) controls wiring harness
*Does not apply to models with air conditioner

Wiring Diagram AUDI A3 2004 - Dash panel insert - combi-processor in dash panel insert - fuel pump - fuel gauge sender - road speed sender - fuse box



Wiring Diagram  AUDI A3 2004 - Dash panel insert - combi-processor in dash panel insert - fuel pump - fuel gauge sender - road speed sender - fuse box https://portal-diagnostov.com/license.html
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Get access to all wiring diagrams of the carDownload PDF file
GFuel gauge sender
G6Fuel pump
G22Speedometer sender, (Hall sender, on gearbox)
J218Combi-processor in dash panel insert
K132Electronic power control fault lamp
K149Engine electronics warning lamp
T1414-pin connector, wiring duct, in engine compartment, left
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   277 Earth connection -3-, in interior wiring harness
   278 Earth connection -4-, in interior wiring harness
   281 Earth connection -1-, in engine prewiring wiring harness
   A2 Positive (+) connection (15), in dash panel wiring harness
   A99 Connection -1- (87), in dash panel wiring harness
   A101 Connection -3- (87), in dash panel wiring harness
   B147 Positive (+) connection -2- (87), in interior wiring harness
   B149 Positive (+) connection -2- (15a), in interior wiring harness
   B178 Connection (speed signal), in interior wiring harness