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WIRING-DIAGRAMS

AUDI A4 2003 – Auxiliary heater . Wiring diagrams, Pin Connector, Location

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Wiring Diagram AUDI A4 2003 - Temperature sensor - flame monitor - additional heater control unit - auxiliary heating radio wave receiver - heater overheating fuse (8 Amp.) - auxiliary heater fuse



Wiring Diagram AUDI A4 2003 - Temperature sensor - flame monitor - additional heater control unit - auxiliary heating radio wave receiver - heater overheating fuse (8 Amp.) - auxiliary heater fuse
G18Temperature sensor
G64Flame monitor
J364Additional heater control unit
R1Aerial connection
R11Aerial
R64Auxiliary heating radio wave receiver
R108Aerial module, left
S24Heater overheating fuse (8 Amp.)
S62Auxiliary heater fuse
T10k10-pin connector, white, connector point, A pillar, left
   86 Earth connection -1-, in rear wiring harness
   146 Earth connection -1-, in auxiliary heater wiring harness
   501 Screw connection -2- (30), on relay plate
   A52 Positive (+) connection -2- (30), in dash panel wiring harness
   B271 Positive (+) connection (auxiliary heater), in interior wiring harness
*Saloon models
**Avant models

Wiring Diagram AUDI A4 2003 - Control and display unit for air conditioner/Climatronic - additional heater control unit - coolant shut-off valve - glow plug - combustion air blower - metering pump - recirculating pump



Wiring Diagram AUDI A4 2003 - Control and display unit for air conditioner/Climatronic - additional heater control unit - coolant shut-off valve - glow plug - combustion air blower - metering pump - recirculating pump
E87Control and display unit for air conditioner/Climatronic
J285Control unit with display in dash panel insert
J364Additional heater control unit
N279Heater coolant shut-off valve
Q8Glow plug with flame monitor
T10k10-pin connector, white, connector point, A pillar, left
T1616-pin connector, black, diagnostic connector
T3232-pin connector, blue, on dash panel insert
V6Combustion air blower
V54Metering pump
V55Recirculating pump
   146 Earth connection -1-, in auxiliary heater wiring harness
   249 Earth connection -2-, in interior wiring harness
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   A159 Connection (L), in dash panel wiring harness


AUDI A4 2003



AUDI A4 2003 Overview of earth points in engine compartment

Overview of earth points in engine compartment
q   only for 2.0 l FSI motor, location
q   only for 2,5 l engine TDI, location
q   only for 2.0 l FSI motor, location
q   only for 3.0 l engine, location

   
Overview of earth points in vehicle interior
AUDI A4 2003 Overview of earth points in engine compartment

   

   
Overview of earth points in luggage compartment - saloon models
  Note:
♦ Overview of luggage compartment - Avant models
   
AUDI A4 2003 Overview of earth points in engine compartment

   
Overview of earth points in luggage compartment - Avant models
AUDI A4 2003 Overview of earth points in engine compartment
1 -  Earth point, right D-pillar -654-
q   Location
3 -  Earth point, left D-pillar -653-
q   Location
5 -  Earth point, on left in luggage compartment -50-
q   Location

   

AUDI A4 2003 Earth point, in engine compartment

Earth point, in engine compartment
Torque: 20 Nm
   12 Earth point, in engine compartment, left -arrow-
on bulkhead
Torque: 9 Nm
not for 2,0 l engine FSI
not for 2,5 l engine TDI
 
AUDI A4 2003 Earth point, in engine compartment
only for 2,0 l engine FSI
   12 Earth point, in engine compartment, left -arrow-
on bulkhead
Torque: 9 Nm
only for 2,5 l engine TDI
 
AUDI A4 2003 Earth point, in engine compartment
only for 1.8 l engine
   18 Earth point on engine block -arrow-
Torque: 8 Nm
only for 2.0 l engine
 
AUDI A4 2003 Earth point, in engine compartment
only for 2,0 l engine FSI
   18 Earth point on engine block -arrow-
Torque: 8 Nm
only for 3.0 l engine
 
AUDI A4 2003 Earth point, in engine compartment
only for 4.2 l engine
   26 Earth point, on front apron -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth point, in engine compartment

AUDI A4 2003 Earth points, in interior

Earth points, in interior
Torque: 9 Nm
   33 Earth point behind dash panel on right -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth points, in interior
Torque: 9 Nm
   44 Earth point, lower part of left A-pillar -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth points, in interior
Torque: 9 Nm
   77 Earth point, lower part of left B-pillar -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth points, in interior
Torque: 9 Nm
   610 Earth point (audio), under centre console, front -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth points, in interior

AUDI A4 2003 Earth point, in luggage compartment - saloon models

Earth point, in luggage compartment - saloon models
   50 Earth point, on left in luggage compartment -arrow-
 
AUDI A4 2003 Earth point, in luggage compartment - saloon modelsLogin / Signup
Torque: 9 Nm
   653 Earth point, left D-pillar -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth point, in luggage compartment - saloon models
Torque: 9 Nm
   701 Earth point, in luggage compartment -arrow-
Torque: 20 Nm
 
AUDI A4 2003 Earth point, in luggage compartment - saloon models
Earth point, in luggage compartment - Avant models
   50 Earth point, on left in luggage compartment -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth point, in luggage compartment - saloon modelsLogin / Signup
Torque: 9 Nm
   53 Earth point, on right in rear lid -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth point, in luggage compartment - saloon models
Torque: 9 Nm
   654 Earth point, right D-pillar -arrow-
Torque: 9 Nm
 
AUDI A4 2003 Earth point, in luggage compartment - saloon models


AUDI A4 2003 Control units overview

Control units overview
   
AUDI A4 2003 Control units overviewLogin / Signup
5 - 
5 - 

   
5 - 
q   Location for navigation system RNS-E
6 - 

   
Diesel direct injection system control unit -J248-
14 - 
17 -  Automatic gearbox control unit -J217-
q   for models with multitronic® only
q   Location

   

AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-  
AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-Login / Signup
Location:
On electronics box in plenum chamber
 
AUDI A4 2003 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

AUDI A4 2003 Automatic gearbox control unit -J217-

In electronics box in plenum chamber
for models with multitronic® only

AUDI A4 2003 ABS control unit -J104-

AUDI A4 2003 Radiator fan control unit -J293-

Radiator fan control unit -J293-
 
AUDI A4 2003 Radiator fan control unit -J293-Login / Signup
Location:
on radiator fan
 
AUDI A4 2003 Radiator fan control unit -J293-

AUDI A4 2003 Fresh air blower control unit -J126-

AUDI A4 2003 Headlight range control, control unit -J431-

Headlight range control, control unit -J431-  
AUDI A4 2003 Headlight range control, control unit -J431-Login / Signup
Location:
Behind the glove box
 
AUDI A4 2003 Headlight range control, control unit -J431-

AUDI A4 2003 Steering column electronics control unit -J527-

AUDI A4 2003 Display control unit in dash panel insert -J285-

Display control unit in dash panel insert -J285-  
AUDI A4 2003 Display control unit in dash panel insert -J285-Login / Signup
Location:
In the dash panel behind the display unit
 
AUDI A4 2003 Display control unit in dash panel insert -J285-

AUDI A4 2003 Airbag control unit -J234-

AUDI A4 2003 Onboard power supply control unit -J519-

Onboard power supply control unit -J519-  
AUDI A4 2003 Onboard power supply control unit -J519-Login / Signup
Location:
Behind driver's storage compartment
 
AUDI A4 2003 Onboard power supply control unit -J519-

AUDI A4 2003 Trailer detector control unit -J345-

AUDI A4 2003 Parking aid control unit -J446-

Parking aid control unit -J446-  
AUDI A4 2003 Parking aid control unit -J446-Login / Signup
Location:
In left luggage compartment, behind side trim, on apron
 
AUDI A4 2003 Parking aid control unit -J446-

AUDI A4 2003 Navigation operating electronics control unit -J402-



AUDI A4 2003 Radio -R-

AUDI A4 2003 Navigation system with CD drive control unit -J401-
in centre console
For navigation system RNS-E only

AUDI A4 2003 Control unit with display for radio and navigation system -J503-

Control unit with display for radio and navigation system -J503-
for navigation system RNS-Low only
Location:
in centre console


AUDI A4 2003 CD changer -R41-

CD changer -R41-
 
AUDI A4 2003 CD changer -R41-Login / Signup
Location:
In glove compartment
 
AUDI A4 2003 CD changer -R41-

AUDI A4 2003 Telephone and telematics control unit, telematics -J526-



AUDI A4 2003 Language input control unit -J507-

AUDI A4 2003 Convenience system central control unit -J393-

Convenience system central control unit -J393-
   
Location:
on sill, front left
 
AUDI A4 2003 Convenience system central control unit -J393-

AUDI A4 2003 Driver door control unit -J386-

AUDI A4 2003 Front passenger side door control unit -J387-

Location:
In window regulator motor integrated
 
AUDI A4 2003 Front passenger side door control unit -J387-
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