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Wiring Diagram AUDI A4 CABRIOLET 2003 - Temperature sensor - flame monitor - additional heater control unit - auxiliary heating radio wave receiver - heater overheating fuse (8 Amp.) - auxiliary heater fuse
| G18 | Temperature sensor |
| G64 | Flame monitor |
| J364 | Additional heater control unit |
| R1 | Aerial connection |
| R11 | Aerial |
| R64 | Auxiliary heating radio wave receiver |
| S24 | Heater overheating fuse (8 Amp.) |
| S62 | Auxiliary heater fuse |
| T10k | 10-pin connector, white, connector point, A pillar, left |
| 44 | Earth point, lower part of left A pillar |
| 86 | Earth connection -1-, in rear wiring harness |
| 146 | Earth connection -1-, in auxiliary heater wiring harness |
| 249 | Earth connection -2-, in interior wiring harness |
| 501 | Screw connection -2- (30), on relay plate |
| 662 | Earth point, rear left side panel |
| 663 | Earth point, rear right side panel |
| A52 | Positive (+) connection -2- (30), in dash panel wiring harness |
| B271 | Positive (+) connection (auxiliary heater), in interior wiring harness |
| * | Only models with auxiliary heating radio wave receiver |
Wiring Diagram AUDI A4 CABRIOLET 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
| E87 | Control and display unit for air conditioner/Climatronic |
| J285 | Control unit with display in dash panel insert |
| J364 | Additional heater control unit |
| N279 | Coolant shut-off valve, heater |
| Q8 | Glow plug with flame monitor |
| T2l | 2-pin connector, green, near back panel |
| T10k | 10-pin connector, white, connector point, A pillar, left |
| T16 | 16-pin connector, black, diagnostic connector |
| T32 | 32-pin connector, blue, on dash panel insert |
| V6 | Combustion air blower |
| V54 | Metering pump |
| V55 | Recirculating 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 CABRIOLET 2003
AUDI A4 CABRIOLET 2003 Overview of earth points
| Overview of earth points |
| 1 - | Earth point, lower part of right A-pillar -43- |
| q | Location → page 801/9 |
| 2 - | Earth point, on right behind dash panel -33- |
| q | Location → page 801/8 |
| 3 - | Earth point (audio), under centre console, front -610- |
| q | Location → page 801/10 |
| 4 - | Earth point, on left behind dash panel insert -32- |
| q | Location → page 801/8 |
| 5 - | Earth point, airbag control unit -637- |
| q | on centre tunnel |
| 6 - | Earth point, rear right side panel -663- |
| q | behind side trim on rear right |
| 7 - | Earth point, on convertible roof box -661- |
| q | on right in luggage compartment |
| Audi Cabriolet | Fitting Locations | No. 801 / 2 |
| 8 - | Earth point, on right in rear lid -53- |
| q | on right in rear lid, behind the trim |
| 9 - | Earth point, centre on rear lid -612- |
| q | centre on rear lid, behind the trim |
| 10 - | Earth point, on left in rear lid -52- |
| q | on left in rear lid, behind the trim |
| 11 - | Earth point, on left in luggage compartment -50- |
| q | Location → page 801/11 |
| 12 - | Earth point, rear left side panel -662- |
| q | behind side trim on rear left |
| 13 - | Earth point, near convenience system central control unit -49- |
| q | Location → page 801/10 |
| 14 - | Earth point, lower part of left A-pillar -44- |
| q | Location → page 801/9 |
| Audi Cabriolet | Fitting Locations | No. 801 / 3 |
| 15 - | Earth point, on left in engine compartment -12- |
| q | not for 2,0 l engine FSI, not for 2,5 l engine TDI, location → page 801/4 |
| q | only for 2.0 l FSI motor, location → page 801/5 |
| q | only for 2,5 l engine TDI, location → page 801/5 |
| 15 - | Earth point, near coil -19- |
| q | Location → page 801/6 |
| 15 - | Earth point, on front apron -26- |
| q | Location → page 801/6 |
| 16 - | Earth strap, engine - body -3- |
| q | between engine and right longitudinal member |
| 17 - | Earth point, in battery box -11- |
| q | Location → page 801/4 |
| 17 - | Earth point, starter battery -624- |
| q | Location → page 801/7 |
| Audi Cabriolet | Fitting Locations | No. 801 / 4 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 5 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 6 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 7 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 8 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 9 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 10 |
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| Audi Cabriolet | Fitting Locations | No. 801 / 11 |
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