T14i | 14-pin connector, in engine compartment, left |
12 | Earth point, in engine compartment, left |
50 | Earth point, on left luggage compartment |
96 | Earth connection -1-, in seat heating wiring harness |
98 | Earth connection, in tailgate/boot lid wiring harness |
131 | Earth connection -2-, in engine compartment wiring harness |
188 | Earth connection -3-, in air conditioner wiring harness |
249 | Earth connection -2-, in interior wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
283 | Earth connection -2-, in engine prewiring wiring harness |
286 | Earth connection -8-, in interior wiring harness |
B | Starter |
D | Ignition/starter switch |
J17 | Fuel pump relay |
J59 | X contact relief relay |
S11 | Fuse in fuse box |
S237 | Fuse 37 in fuse box |
T6m | 6-pin connector, brown, in plenum chamber |
50 | Earth point, on left luggage compartment |
238 | Earth connection -1-, in interior wiring harness, near luggage compartment light |
A2 | Positive (+) connection (15), in dash panel wiring harness |
A86 | Connection (50a), in dash panel wiring harness |
A98 | Positive (+) connection -4- (30), in dash panel wiring harness |
A104 | Connection -2- (15), in dash panel wiring harness |
B138 | Positive (+) connection (X), in interior wiring harness, near micro-central electrics |
B156 | Positive (+) connection -4- (30), in interior wiring harness |
B157 | Positive (+) connection -3- (15a), in interior wiring harness |
* | Only models with ABS |
** | Only models with ABS and ESP |
*** | Roadster |
A | Battery |
C | Alternator |
H | Horn plate |
H2 | High tone horn |
H7 | Low tone horn |
J4 | Dual tone horn relay |
J104 | ABS with EDL control unit |
J299 | Secondary air pump relay |
S131 | Fuse 1 |
S132 | Fuse 2 |
S133 | Fuse 3 |
S134 | Fuse 4 |
S138 | Fuse 5 |
S162 | Fuse -1- (30), in fuse box/battery |
S163 | Fuse -2- (30), in fuse box/battery |
S164 | Fuse -3- (30), in fuse box/battery |
T3e | 3-pin connector, black, on main fuse box/battery |
T5a | 5-pin connector, yellow, behind steering column switch trim |
42 | Earth point, steering column |
131 | Earth connection -2-, in engine compartment wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A72 | Connection (71), in dash panel wiring harness |
* | Models with secondary air pump |
** | Applies to 132 kW engine only |
*** | Applies to 165 kW engine only |
C | Alternator |
D2 | Immobilizer reading coil |
J218 | Combi-processor in dash panel insert |
J220 | Motronic control unit |
J429 | Central locking control unit |
K2 | Alternator warning lamp |
K117 | Immobilizer warning lamp |
K132 | Electronic power control fault lamp |
R | Radio |
T2f | 2-pin connector, wiring duct, in engine compartment, left |
T4b | 4-pin connector, in engine compartment, left |
T8 | 8-pin connector, black, radio connector III |
T10a | 10-pin connector, white, in plenum chamber |
T10x | 10-pin connector, orange, in plenum chamber |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
A21 | Connection (86s), in dash panel wiring harness |
A27 | Connection (speed signal), in dash panel wiring harness, near micro-central electrics |
A45 | Connection (engine speed signal), in dash panel wiring harness |
A50 | Positive (+) connection (30a), in dash panel wiring harness |
* | Models with manual heater controls |
** | Models with air conditioner |
C10 | Suppression filter |
F1 | Oil pressure switch |
F66 | Coolant shortage indicator switch |
F140 | Switch: Front left belt |
G | Fuel gauge sender |
G1 | Fuel gauge |
G5 | Rev. counter |
G6 | Fuel pump (pre-supply pump) |
G169 | Fuel gauge sender -2- |
J218 | Combi-processor in dash panel insert |
K3 | Oil pressure warning lamp |
K16 | Reserve fuel warning lamp |
K19 | Seat belt warning system warning lamp |
K28 | Coolant temperature/coolant shortage warning lamp |
T6i | 6-pin connector, under driver's seat |
T14i | 14-pin connector, in engine compartment, left |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
249 | Earth connection -2-, in interior wiring harness |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
* | Models with front-wheel drive |
** | Models with four-wheel drive |
*** | Wiring in fuel tank |
F2 | Door contact switch, driver's side |
G21 | Speedometer |
G22 | Speedometer sender (Hall sender, on gearbox) |
H3 | Buzzer/gong |
J218 | Combi-processor in dash panel insert |
K1 | Main beam warning lamp |
R | Radio |
T8 | 8-pin connector, black, radio connector III |
T10d | 10-pin connector, brown, connector carrier, A pillar, left |
T14i | 14-pin connector, in engine compartment, left |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
Y | Analogue clock |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
283 | Earth connection -2-, in engine prewiring wiring harness |
A108 | Connection (speed signal), in dash panel wiring harness |
B154 | Connection -1- (TK (door contact)), in interior wiring harness |
R2 | Connection (door contact switch, left), in electric window/central locking and door contact switch wiring harness |
* | Sender earth output |
F9 | Handbrake warning switch |
F34 | Brake fluid level warning contact |
G17 | Ambient temperature sensor |
G106 | Ambient temperature indicator |
J218 | Combi-processor in dash panel insert |
J492 | Four-wheel drive control unit |
K14 | Handbrake warning lamp |
K32 | Brake pad/lining warning lamp |
K33 | Brake fluid level warning lamp |
N13 | Brake pad/lining wear indicator, left (shear element) |
T2ae | 2-pin connector, on bulkhead, left |
T8d | 8-pin connector, on four-wheel drive control unit |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
42 | Earth point, next to steering columm |
131 | Earth connection -2-, in engine compartment wiring harness |
249 | Earth connection -2-, in interior wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
279 | Earth connection -5-, in interior wiring harness, behind dash panel |
A115 | Connection (handbrake warning), in dash panel wiring harness |
* | Only models with quattro four-wheel drive |
E87 | Control and display unit for air conditioner |
G209 | Anti-theft alarm ultra-sonic sensor |
J218 | Combi-processor in dash panel insert |
J234 | Airbag control unit |
J429 | Central locking control unit |
J431 | Headlight range control, control unit |
J492 | Four-wheel drive control unit |
R | Radio |
T8 | 8-pin connector, black, radio connector III |
T8d | 8-pin connector, on four-wheel drive control unit |
T12a | 12-pin connector, behind dash panel, right |
T32a | 32-pin connector, green, on dash panel insert |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
* | Only models with air conditioner |
** | Coupé |
*** | Roadster |
# | Only models with automatic headlight range control |
## | Only models with quattro four-wheel drive |
### | Only models with interior monitoring |
E256 | TCS/ESP button |
G2 | Coolant temperature sender |
G3 | Coolant temperature gauge |
J104 | ABS with EDL control unit |
J218 | Combi-processor in dash panel insert |
J220 | Motronic control unit |
J234 | Airbag control unit |
J429 | Central locking control unit |
K47 | ABS warning lamp |
K75 | Airbag warning lamp |
K86 | Traction control system warning lamp |
K127 | Tailgate/boot lid open warning lamp |
T10x | 10-pin connector, orange, in plenum chamber |
T14i | 14-pin connector, in engine compartment, left |
T25 | 25-pin connector, on ABS control unit |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
249 | Earth connection -2-, in interior wiring harness |
J5 | Connection -2-, in ABS wiring harness |
* | Only models with traction control system |
** | Only models with quattro four-wheel drive |
# | Only models with ABS |
## | Only models with ABS and ESP |
E87 | Control and display unit for air conditioner |
J218 | Combi-processor in dash panel insert |
K65 | Left turn signal warning lamp |
K94 | Right turn signal warning lamp |
R | Radio |
T8 | 8-pin connector, black, radio connector III |
T12a | 12-pin connector, behind dash panel, right |
T17 | 17-pin connector, behind dash panel, right, to air conditioner wiring harness |
T32 | 32-pin connector, blue, on dash panel insert |
T32a | 32-pin connector, green, on dash panel insert |
45 | Earth point, behind dash panel - centre |
A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
A116 | Connection -2- (58d), in dash panel wiring harness |
B145 | Positive (+) connection (58s), in interior wiring harness |
L40 | Connection (air conditioner pressure switch) -2-, in Climatronic wiring harness |
* | Only models with air conditioner |
E2 | Turn signal switch |
E4 | Headlight dipper/flasher switch |
E19 | Parking light switch |
M5 | Turn signal bulb, front left |
M7 | Turn signal bulb, front right |
M18 | Side turn signal bulb, left |
M19 | Side turn signal bulb, right |
131 | Earth connection -2-, in engine compartment wiring harness |
A5 | Positive (+) connection (turn signal, right ), in dash panel wiring harness |
A6 | Positive (+) connection (turn signal, left ), in dash panel wiring harness |
B141 | Positive (+) connection -1- (56a), in interior wiring harness |
E1 | Lighting switch |
E23 | Front and rear fog light switch |
K13 | Rear fog light warning lamp |
K17 | Fog light warning lamp |
L9 | Lighting switch light bulb |
L40 | Front and rear fog light switch bulb |
S236 | Fuse in fuse box |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A51 | Connection (56), in dash panel wiring harness |
B139 | Connection (PLL), in interior wiring harness |
B140 | Connection (PLR), in interior wiring harness |
* | Does not apply to models for Japan |
** | Only models for Japan |
J5 | Fog light relay |
L22 | Fog light bulb, left |
M1 | Side light bulb, left |
M29 | Dipped beam bulb, left |
M30 | Main beam bulb, left |
S19 | Fuse in fuse box |
S21 | Fuse in fuse box |
S223 | Fuse 23 in fuse box |
T10ac | 10-pin connector, on headlight, left |
T12c | 12-pin connector, on headlight, left |
131 | Earth connection -2-, in engine compartment wiring harness |
A84 | Connection (58L), in dash panel wiring harness |
C25 | Connection (fog light), in front lighting wiring harness |
* | From chassis number 10000 onwards: 10-pin connector |
L23 | Fog light bulb, right |
M3 | Side light bulb, right |
M31 | Dipped beam bulb, right |
M32 | Main beam bulb, right |
S18 | Fuse in fuse box |
S22 | Fuse in fuse box |
T10ad | 10-pin connector, on headlight, right |
T12d | 12-pin connector, on headlight, right |
131 | Earth connection -2-, in engine compartment wiring harness |
A85 | Connection (58R), in dash panel wiring harness |
B142 | Positive (+) connection -2- (56a), in interior wiring harness |
* | From chassis number 10000 onwards: 10-pin connector |
E20 | Switches and instruments light regulator |
E102 | Headlight range control adjuster |
L54 | Headlight range control adjuster light bulb |
S20 | Fuse in fuse box |
T10ac | 10-pin connector, on headlight, left |
T10ad | 10-pin connector, on headlight, right |
T12c | 12-pin connector, on headlight, left |
T12d | 12-pin connector, on headlight, right |
V48 | Headlight range control motor, left |
V49 | Headlight range control motor, right |
42 | Earth point, steering column |
199 | Earth connection -3-, in dash panel wiring harness, near lighting switch |
249 | Earth connection -2-, in interior wiring harness |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
A103 | Connection -2- (56), in dash panel wiring harness |
A114 | Connection (headlight range control), in dash panel wiring harness, near lighting switch |
* | From chassis number 10000 onwards: 10-pin connector |
E22 | Intermittent wiper switch |
E38 | Intermittent wiper control |
J31 | Automatic intermittent wash/wipe relay |
V5 | Windscreen washer pump |
249 | Earth connection -2-, in interior wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A96 | Connection (53c), in dash panel wiring harness |
A97 | Connection (53), in dash panel wiring harness |
J31 | Automatic intermittent wash/wipe relay |
S3 | Fuse in fuse box |
S4 | Fuse in fuse box |
S233 | Fuse 33 in fuse box |
V | Windscreen wiper motor |
W6 | Glove box light |
X | Number plate light |
52 | Earth point, in tailgate/boot lid, left |
98 | Earth connection, in tailgate/boot lid wiring harness |
131 | Earth connection -2-, in engine compartment wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A37 | Connection (58a), in dash panel wiring harness |
C10 | Suppression filter |
F | Brake light switch |
F4 | Reversing light switch |
F47 | Cruise control system brake pedal switch |
J104 | ABS with EDL control unit |
J220 | Motronic control unit |
J508 | Brake light suppression relay |
L46 | Rear fog light bulb, left |
L47 | Rear fog light bulb, right |
M2 | Tail light bulb, right |
M4 | Tail light bulb, left |
M6 | Turn signal bulb, rear left |
M8 | Turn signal bulb, rear right |
M9 | Brake light bulb, left |
M10 | Brake light bulb, right |
M16 | Reversing light bulb, left |
M17 | Reversing light bulb, right |
M25 | High level brake light bulb |
T10e | 10-pin connector, black, in plenum chamber |
T10x | 10-pin connector, orange, in plenum chamber |
238 | Earth connection -1-, in interior wiring harness, near luggage compartment light |
A87 | Connection (RF (reversing light)), in dash panel wiring harness |
B131 | Connection (54), in interior wiring harness |
B185 | Connection -2- (54), in interior wiring harness |
* | Does not apply to models for Japan |
** | Only models for Japan |
# | Models with ABS |
## | Models with ABS and ESP |
E87 | Control and display unit for air conditioner |
S1 | Fuse in fuse box |
S2 | Fuse in fuse box |
S224 | Fuse in fuse box |
S225 | Fuse in fuse box |
S226 | Fuse in fuse box |
T2k | 2-pin connector, black, on bonnet |
T2l | 2-pin connector, black, on bonnet |
T10w | 10-pin connector, blue, connector carrier, A pillar, left |
T10z | 10-pin connector, blue, connector carrier, A pillar, right |
T17 | 17-pin connector, behind dash panel, right, to air conditioner wiring harness |
Z4 | Heated exterior mirror, driver's side |
Z5 | Heated exterior mirror, front passenger's side |
Z20 | Heater element, left washer jet |
Z21 | Heater element, right washer jet |
131 | Earth connection -2-, in engine compartment wiring harness |
A81 | Connection -2- (X), in dash panel wiring harness |
L59 | Positive (+) connection (30), in heater unit wiring harness |
* | Models with manual heater controls |
** | Models with air conditioner |
E15 | Heated rear window switch |
J9 | Heated rear window relay |
J429 | Central locking control unit |
J492 | Four-wheel drive control unit |
S5 | Fuse in fuse box |
S6 | Fuse in fuse box |
S7 | Fuse in fuse box |
S231 | Fuse in fuse box |
T6n | 6-pin connector, connection for convertible top/hardtop, left |
T6o | 6-pin connector, connection for convertible top/hardtop, right |
T8d | 8-pin connector, for four-wheel drive control unit |
Z1 | Heated rear window |
Z24 | Heated rear window with window aerial |
98 | Earth connection, in tailgate/boot lid wiring harness |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
284 | Earth connection -6-, in interior wiring harness |
B149 | Positive (+) connection -2- (15a), in interior wiring harness, near starter inhibitor and reversing light relay |
Q49 | Connection (closed), in interior wiring harness |
* | Coupé |
** | Roadster |
*** | Only models with quattro four-wheel drive |
# | Convertible top |
## | Hardtop |
J104 | ABS with EDL control unit |
J220 | Motronic control unit |
J429 | Central locking control unit |
L15 | Ashtray light bulb |
L28 | Cigarette lighter light bulb |
S9 | Fuse in fuse box |
S10 | Fuse in fuse box |
S238 | Fuse in fuse box |
S239 | Fuse in fuse box |
S240 | Fuse in fuse box |
S241 | Fuse in fuse box |
S242 | Fuse in fuse box |
T2p | 2-pin connector, behind console |
T6m | 6-pin connector, brown, in plenum chamber |
T25 | 25-pin connector, on ABS control unit |
U1 | Cigarette lighter |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A36 | Connection (75a), in dash panel wiring harness |
A46 | Positive (+) connection (30 - from radio), in dash panel wiring harness |
D78 | Positive (+) connection -1- (30a), in engine compartment wiring harness |
* | Only models with ABS |
** | Only models with ABS and ESP |
E94 | Heated driver's seat regulator |
J220 | Motronic control unit |
J429 | Central locking control unit |
S12 | Fuse in fuse box |
S13 | Fuse in fuse box |
S14 | Fuse in fuse box |
S15 | Fuse in fuse box |
S229 | Fuse 29 in fuse box |
S243 | Fuse 43 in fuse box |
S244 | Fuse 44 in fuse box |
T6m | 6-pin connector, brown, in plenum chamber |
T16 | 16-pin connector, black, shelf on driver's side (diagnosis connection) |
277 | Earth connection -3-, in interior wiring harness, behind dash panel |
A1 | Positive (+) connection (30a), in dash panel wiring harness |
A139 | Connection -3- (15), in dash panel wiring harness |
B111 | Positive (+) connection -1- (30a), in interior wiring harness, near lighting switch |
D80 | Positive (+) connection (87a - for activated charcoal filter system solenoid valve), in engine compartment wiring harness |
F18 | Radiator fan thermo-switch |
F54 | Radiator fan thermo-switch |
J17 | Fuel pump relay |
J151 | Continued coolant circulation relay |
J293 | Radiator fan control unit, in engine compartment, front left |
S228 | Fuse 28 in fuse box |
S232 | Fuse 32 in fuse box |
S234 | Fuse 34 in fuse box |
T14b | 14-pin connector, connector A on J293 |
T14i | 14-pin connector, in engine compartment, left |
V7 | Radiator fan |
V51 | Continued coolant circulation pump |
12 | Earth point, in engine compartment, left |
188 | Earth connection -3-, in air conditioner wiring harness |
A68 | Connection (30, air conditioner), in dash panel wiring harness |
A99 | Connection -1- (87), in dash panel wiring harness |
A100 | Connection -2- (87), in dash panel wiring harness |
D22 | Connection (via fuse 234), in front right wiring harness |
D140 | Connection (injectors), in engine prewiring wiring harness |
* | Applies to 132 kW engine only |
** | Applies to 165 kW engine only, without air conditioner |
*** | Applies to 165 kW engine only, with air conditioner (see Current Flow Diagram No. 45: Air conditioner) |
E9 | Fresh air blower switch |
E159 | Fresh air/air recirculating flap switch |
J285 | Control unit with display in dash panel insert |
N23 | Fresh air blower series resistor |
N24 | Fresh air blower with overheating fuse series resistor |
T4c | 4-pin connector, behind console |
T32 | 32-pin connector, blue, on dash panel insert |
V2 | Fresh air blower |
V154 | Fresh air/air recirculating flap control motor |
44 | Earth point, lower part of left A pillar |
162 | Earth connection, in blower motor wiring harness |
B135 | Connection (15a), in interior wiring harness |
B145 | Positive (+) connection (58s), in interior wiring harness |
L66 | Connection, in heater blower wiring harness |
* | Applies to 165 kW engine only |
** | Phased-in modification |
F147 | Vanity mirror contact switch, driver's side |
F148 | Vanity mirror contact switch, front passenger's side |
J429 | Central locking control unit |
W | Interior light, front |
W13 | Reading lamp, front passenger's side |
W14 | Illuminated vanity mirror, front passenger's side |
W19 | Reading lamp, driver's side |
W20 | Illuminated vanity mirror, driver's side |
128 | Earth connection -1-, in interior light wiring harness, near interior light |
B116 | Connection (58s), in interior wiring harness |
B151 | Positive (+) connection -3- (30a), in interior wiring harness, near interior light |