10-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
249
Earth connection -2-, in interior 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
*
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
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