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Wiring diagrams AUDI Audi A6 2.4 l Fuel injection engine (130 kW – 6 cylinder), engine code BDW

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Wiring diagrams AUDI Audi A6 2.4 l Fuel injection engine (130 kW - 6 cylinder), engine code BDW from model year 2007
Audi A6 Current Flow Diagram No.  62 / 1
Edition 04.2009
Notes:
For information concerning
t  Position of relays and fuses
t  Multi-pin connections
t  Control units and relays
t  Earth connections
→ List of Fitting Locations!
For information concerning
t  Fault Finding Programs
→ guided fault finding

Audi A6 Current Flow Diagram No.  62 / 2
Wiring diagrams AUDI Audi A6 2.4 l Fuel injection engine (130 kW – 6 cylinder), engine code BDW
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Battery, energy management control unit, fuses
A -   Battery
J234 -   Airbag control unitA005A6200804#BTJ234
J644 -   Energy management control unitA005A6200804#BTJ644
N253 -   Battery isolation igniterA005A6200803#BTN253
S131 -   Fuse 1A005A6200802#BTS131
S132 -   Fuse 2A005A6200802#BTS132
S133 -   Fuse 3A005A6200802#BTS133
SF6 -   Fuse 6 on fuse holder FA005A6200802#BTSF-
T2au -   2-pin connector, purple, on battery isolation igniter
T46b -   46-pin connector, CAN disconnector right
T75 -   75-pin connector, grey, on airbag control unit
  13 -   Earth point, on right in engine compartmentA005A6200801#VB13
  18 -   Earth point on engine blockA005A6200801#VB18
  B272 -   Positive connection (30), in main wiring harness
  B300 -   Positive connection 4 (30), in main wiring harness
  B301 -   Positive connection 5 (30), in main wiring harness
  B397 -   Connection 1 (convenience CAN bus, high), in main wiring harness
  B406 -   Connection 1 (convenience CAN bus, low), in main wiring harness
• -   CAN bus (data wire)
* -   main fuse box, in luggage compartment, rear right, on the battery

Audi A6 Current Flow Diagram No.  62 / 3
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Starter, alternator, terminal 15 voltage supply relay, starter motor relay, suppression filter
B -   Starter
C -   Alternator
C1 -   Voltage regulator
C24 -   Suppression filter
J53 -   Starter motor relayA005A6200803#BTJ53
J329 -   Terminal 15 voltage supply relayA005A6200803#BTJ329
J518 -   Entry and start authorisation control unitA005A6200804#BTJ518
J695 -   Starter motor relay 2A005A6200803#BTJ695
S42 -   Radiator fan single fuseA005A6200802#BTS42
S104 -   Radiator fan fuse for 2nd speedA005A6200802#BTS104
T2 -   2-pin connector, black, on alternator
T17a -   17-pin connector, red, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17a
T20h -   20-pin connector, black, connector A, on entry and start authorisation control unit
  646 -   Earth point 2, on bulkheadA005A6200801#VB646
  B165 -   Positive connection 2 (15), in interior wiring harness
  B273 -   Positive connection (15), in main wiring harness
  B298 -   Positive connection 2 (30), in main wiring harness
  D97 -   Connection (50), in engine compartment right wiring harness
* -   Main fuse carrier electronics box right in plenum chamber
** -   9-point relay carrier, behind driver storage compartment

Audi A6 Current Flow Diagram No.  62 / 4
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ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, Motronic current supply relay
J217 -   Automatic gearbox control unitA005A6200804#BTJ217
J271 -   Motronic current supply relayA005A6200803#BTJ271
J623 -   Engine control unitA005A6200804#BTJ623
SA8 -   Fuse 8 on fuse holder AA005A6200802#BTSA-
SA10 -   Fuse 10 on fuse holder AA005A6200802#BTSA-
SB3 -   Fuse 3 on fuse holder BA005A6200802#BTSB-
T17a -   17-pin connector, red, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17a
T20e -   20-pin connector, black, on automatic gearbox control unit
T94a -   94-pin connector, black, connector B, on engine control unit
  85 -   Earth connection 1, in engine compartment wiring harness
  646 -   Earth point 2, on bulkheadA005A6200801#VB646
  B302 -   Positive connection 6 (30), in main wiring harness
  D50 -   Positive connection (30), in engine compartment wiring harness
  D51 -   Positive connection 1 (15), in engine compartment wiring harness
  D101 -   Connection 1, in engine compartment wiring harness
* -   Screw connection in electronics box left in plenum chamber
** -   Relay carrier electronics box left in plenum chamber
*** -   models with automatic gearbox 01J
# -   up to May 2007
## -   from June 2007

Audi A6 Current Flow Diagram No.  62 / 5
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, CAN disconnector
J518 -   Entry and start authorisation control unitA005A6200804#BTJ518
J623 -   Engine control unitA005A6200804#BTJ623
SA2 -   Fuse 2 on fuse holder AA005A6200802#BTSA-
T17a -   17-pin connector, red, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17a
T20h -   20-pin connector, black, connector A, on entry and start authorisation control unit
T46a -   46-pin connector, CAN disconnector left
T94a -   94-pin connector, black, connector B, on engine control unit
  D102 -   Connection 2, in engine compartment wiring harness
• -   CAN bus (data wire)

Audi A6 Current Flow Diagram No.  62 / 6
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, injector for cylinders 1 - 4, ignition coils 1 - 4 with output stage
J623 -   Engine control unitA005A6200804#BTJ623
N30 -   Injector, cylinder 1
N31 -   Injector, cylinder 2
N32 -   Injector, cylinder 3
N33 -   Injector, cylinder 4
N70 -   Ignition coil 1 with output stage
N127 -   Ignition coil 2 with output stage
N291 -   Ignition coil 3 with output stage
N292 -   Ignition coil 4 with output stage
P -   Spark plug connector
Q -   Spark plugs
SA4 -   Fuse 4 on fuse holder AA005A6200802#BTSA-
T60a -   60-pin connector, black, connector A, on engine control unit
  85 -   Earth connection 1, in engine compartment wiring harness
  131 -   Earth connection 2, in engine compartment wiring harness
  132 -   Earth connection 3, in engine compartment wiring harness
  601 -   Earth point, on left of cylinder head
  645 -   Earth point 1, on bulkheadA005A6200801#VB645
  646 -   Earth point 2, on bulkheadA005A6200801#VB646
  D95 -   Connection (injectors), in engine compartment wiring harness
  D102 -   Connection 2, in engine compartment wiring harness

Audi A6 Current Flow Diagram No.  62 / 7
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, injector, cylinder 5 and 6, ignition coil 5 and 6 with output stage, accelerator position sender, throttle valve module
G79 -   Accelerator position sender
G185 -   Accelerator position sender 2
G186 -   Throttle valve drive (electric power control)
G187 -   Throttle valve drive angle sender 1 for electric throttle
G188 -   Throttle valve drive angle sender 2 for electric throttle
J338 -   Throttle valve module
J623 -   Engine control unitA005A6200804#BTJ623
N83 -   Injector, cylinder 5
N84 -   Injector, cylinder 6
N323 -   Ignition coil 5 with output stage
N324 -   Ignition coil 6 with output stage
P -   Spark plug connector
Q -   Spark plugs
T17o -   17-pin connector, brown, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17o
T60a -   60-pin connector, black, connector A, on engine control unit
T94a -   94-pin connector, black, connector B, on engine control unit
  131 -   Earth connection 2, in engine compartment wiring harness
  132 -   Earth connection 3, in engine compartment wiring harness
  D95 -   Connection (injectors), in engine compartment wiring harness
  D102 -   Connection 2, in engine compartment wiring harness
* -   phased-in modification

Audi A6 Current Flow Diagram No.  62 / 8
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, engine speed sender, Hall sender, coolant temperature sender, intake manifold pressure sender, intake air temperature sender
G28 -   Engine speed sender
G40 -   Hall sender
G42 -   Intake air temperature sender
G62 -   Coolant temperature sender
G71 -   Intake manifold pressure sender
G163 -   Hall sender 2
J623 -   Engine control unitA005A6200804#BTJ623
T60a -   60-pin connector, black, connector A, on engine control unit
  327 -   Earth connection (sender earth), in engine compartment wiring harness
  D103 -   Connection 3, in engine compartment wiring harness

Audi A6 Current Flow Diagram No.  62 / 9
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, knock sensors, active charcoal filter system solenoid valve 1, variable intake manifold change-over valve, secondary air pump relay, secondary air pump motor
G61 -   Knock sensor 1
G66 -   Knock sensor 2
J299 -   Secondary air pump relayA005A6200803#BTJ299
J623 -   Engine control unitA005A6200804#BTJ623
N80 -   Activated charcoal filter system solenoid valve 1
N156 -   Variable intake manifold change-over valve
S130 -   Secondary air pump fuseA005A6200802#BTS130
SA5 -   Fuse 5 on fuse holder AA005A6200802#BTSA-
T3k -   3-pin connector, green, on knock sensor 1
T3l -   3-pin connector, grey, on knock sensor 2
T60a -   60-pin connector, black, connector A, on engine control unit
T94a -   94-pin connector, black, connector B, on engine control unit
V101 -   Secondary air pump motor
  200 -   Earth connection (screening) in engine compartment wiring harness
  646 -   Earth point 2, on bulkheadA005A6200801#VB646
  D106 -   Connection 4, in engine compartment wiring harness
* -   Relay carrier electronics box on right in plenum chamber

Audi A6 Current Flow Diagram No.  62 / 10
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, continued coolant circulation relay, inlet camshaft control valve, continued coolant circulation pump
J151 -   Continued coolant circulation relayA005A6200803#BTJ151
J217 -   Automatic gearbox control unitA005A6200804#BTJ217
J623 -   Engine control unitA005A6200804#BTJ623
N205 -   Inlet camshaft control valve 1
N208 -   Inlet camshaft control valve 2
N280 -   Air conditioning system compressor regulating valve
SA3 -   Fuse 3 on fuse holder AA005A6200802#BTSA-
T20e -   20-pin connector, black, on automatic gearbox control unit
T60a -   60-pin connector, black, connector A, on engine control unit
T94a -   94-pin connector, black, connector B, on engine control unit
V51 -   Continued coolant circulation pump
  167 -   Earth connection 4, in engine compartment wiring harness
  D108 -   Connection 6, in engine compartment wiring harness
* -   only countries with hot climate
** -   Relay carrier electronics box left in plenum chamber
*** -   models with automatic gearbox 01J
# -   up to May 2007
## -   from June 2007

Audi A6 Current Flow Diagram No.  62 / 11
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, lambda probe, lambda probe 2
G39 -   Lambda probe
G108 -   Lambda probe 2
J623 -   Engine control unitA005A6200804#BTJ623
SA6 -   Fuse 6 on fuse holder AA005A6200802#BTSA-
T6a -   6-pin connector, black, for Lambda probe
T6b -   6-pin connector, black, for Lambda probe 2
T94a -   94-pin connector, black, connector B, on engine control unit
Z19 -   Lambda probe heater
Z28 -   Lambda probe 2 heater
  D109 -   Connection 7, in engine compartment wiring harness

Audi A6 Current Flow Diagram No.  62 / 12
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, lambda probes after catalytic converter
E45 -   Cruise control system switch
G130 -   Lambda probe after catalytic converter
G131 -   Lambda probe 2 after catalytic converter
J527 -   Steering column electronics control unit
J623 -   Engine control unitA005A6200804#BTJ623
SA7 -   Fuse 7 on fuse holder AA005A6200802#BTSA-
T4b -   4-pin connector, brown, for Lambda probe 2 after catalytic converter
T4h -   4-pin connector, black, for Lambda probe after catalytic converter
T17c -   17-pin connector, white, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17c
T94a -   94-pin connector, black, connector B, on engine control unit
Z29 -   Lambda probe 1 heater after catalytic converter
Z30 -   Lambda probe 2 heater after catalytic converter
  D110 -   Connection 8, in engine compartment wiring harness
* -   models with cruise control system

Audi A6 Current Flow Diagram No.  62 / 13
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, clutch pedal switch for engine start, clutch position sender
F194 -   Clutch pedal switch for engine start
G476 -   Clutch position sender
J217 -   Automatic gearbox control unitA005A6200804#BTJ217
J518 -   Entry and start authorisation control unitA005A6200804#BTJ518
J540 -   Electric park and handbrake control unitA005A6200804#BTJ540
J623 -   Engine control unitA005A6200804#BTJ623
SB6 -   Fuse 6 on fuse holder BA005A6200802#BTSB-
SB31 -   Fuse 31 on fuse holder BA005A6200802#BTSB-
T17c -   17-pin connector, white, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17c
T20e -   20-pin connector, black, on automatic gearbox control unit
T20h -   20-pin connector, black, connector A, on entry and start authorisation control unit
T94a -   94-pin connector, black, connector B, on engine control unit
  44 -   Earth point, lower part of left A-pillarA005A6200801#VB44
  45 -   Earth point, centre behind dash panelA005A6200801#VB45
  367 -   Earth connection 2, in main wiring harness
  390 -   Earth connection 25, in main wiring harness
  B278 -   Positive connection 2 (15a), in main wiring harness
  E26 -   Connection selector lever lock, in Motronic wiring harness
* -   models with manual gearbox
** -   models with automatic gearbox 01J

Audi A6 Current Flow Diagram No.  62 / 14
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Engine control unit, brake light switch, brake pedal switch, radiator fan
F -   Brake light switch
F47 -   Brake pedal switch
G419 -   ESP sensor unit
J104 -   ABS control unit
J293 -   Radiator fan control unit
J623 -   Engine control unitA005A6200804#BTJ623
SA9 -   Fuse 9 on fuse holder AA005A6200802#BTSA-
SB14 -   Fuse 14 on fuse holder BA005A6200802#BTSB-
SB38 -   Fuse 38 on fuse holder BA005A6200802#BTSB-
T4c -   4-pin connector, black, electronics box, right in plenum chamber, radiator fan
T17a -   17-pin connector, red, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17a
T17f -   17-pin connector, green, coupling station on left of A-pillarA005A6200805#BTT17f
T94a -   94-pin connector, black, connector B, on engine control unit
V7 -   Radiator fan
  45 -   Earth point, centre behind dash panelA005A6200801#VB45
  374 -   Earth connection 9, in main wiring harness
  614 -   Earth point 2, on right in engine compartmentA005A6200801#VB614
  B335 -   Connection 1 (54), in main wiring harness
  B336 -   Connection 2 (54), in main wiring harness
  B626 -   Positive connection 2 (15), in main wiring harness
# -   up to May 2007
## -   from June 2007

Audi A6 Current Flow Diagram No.  62 / 15
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Control unit in dash panel insert, fuel pump relay, fuel system pressurisation pump, fuel gauge sender, fuel gauge
G -   Fuel gauge sender
G1 -   Fuel gauge
G6 -   Fuel system pressurisation pump
G169 -   Fuel gauge sender 2
J17 -   Fuel pump relayA005A6200803#BTJ17
J285 -   Control unit in dash panel insertA005A6200804#BTJ285
J623 -   Engine control unitA005A6200804#BTJ623
SC1 -   Fuse 1 on fuse holder CA005A6200802#BTSC-
T5a -   5-pin connector, black, on fuel tank
T17o -   17-pin connector, brown, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17o
T32 -   32-pin connector, grey, on dash panel insert
T94a -   94-pin connector, black, connector B, on engine control unit
Y24 -   Display in dash panel insert
  50 -   Earth point, on left in luggage compartmentA005A6200801#VB50
  371 -   Earth connection 6, in main wiring harness
  D107 -   Connection 5, in engine compartment wiring harness
* -   only four-wheel drive
** -   Relay carrier electronics box left in plenum chamber
# -   from June 2007

Audi A6 Current Flow Diagram No.  62 / 16
Unlock Lifetime Access for This Car.
ws = white
sw = black
ro = red
rt = red
br = brown
gn = green
bl = blue
gr = grey
li = purple
vi = purple
ge = yellow
or = orange
rs = pink
 
 
 
 
 
Control unit in dash panel insert, oil pressure warning lamp, coolant temperature and coolant shortage warning lamp, oil pressure switch, coolant shortage indicator switch, oil level and oil temperature sender
F1 -   Oil pressure switch
F66 -   Coolant shortage indicator switch
G266 -   Oil level and oil temperature sender
J285 -   Control unit in dash panel insertA005A6200804#BTJ285
J533 -   Data bus diagnostic interfaceA005A6200804#BTJ533
K3 -   Oil pressure warning lamp
K28 -   Coolant temperature and coolant shortage warning lamp
SB4 -   Fuse 4 on fuse holder BA005A6200802#BTSB-
T17a -   17-pin connector, red, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17a
T17o -   17-pin connector, brown, coupling station on electronics box, left in plenum chamberA005A6200805#BTT17o
T26a -   26-pin connector, black, on data bus diagnostic interface
T32 -   32-pin connector, grey, on dash panel insert
Y24 -   Display in dash panel insert
  131 -   Earth connection 2, in engine compartment wiring harness
  410 -   Earth connection 1 (sender earth), in main wiring harness
  645 -   Earth point 1, on bulkheadA005A6200801#VB645
• -   CAN bus (data wire)
* -   output sender earth
** -   up to May 2007
*** -   from June 2007
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