Components in engine compartment and rear of vehicle
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
1 - Sun roof with solar cells
- Checking function → Solar sunroof, electrical testing
- Removing and installing → 60 SUNROOF
2 - Service connection
- Low pressure side
- For measuring, discharging and filling
- Closing cap with seal, reinstall after using service valve
3 - Dust and pollen filter
- Removing and installing → Dust and pollen filter element, removing and installing
- Observe replacement intervals 8E
- Different versions (with and without active-carbon-filter element → Dust and pollen filter with active-carbon-filter element )
4 - Threaded connection in refrigerant line (with restrictor)
- Refrigerant circuit must be drained before opening threaded connection → A/C Service Station, Draining
5 - Service connection
- High pressure side
- For measuring, discharging and filling
- Closing cap with seal, reinstall after using service valve
6 - Air Quality Sensor G238
- Function → Air Quality Sensor G238
- Checking → Air Quality Sensor G238, checking
- Removing and installing → Air Quality Sensor G238, removing and installing
7 - Heated Windshield Control Module J505
- Function → Heated Windshield Z2, function
- Disabling → Windshield defroster, disabling
- Removing and installing Electrical Equipment and
8 - Accumulator
- Always discharge refrigerant circuit before removing → Discharge refrigerant circuit
- Removing and installing → Accumulator, removing and installing
9 - Coolant Fan Control (FC)Control Module J293 A/C system control and regulation components
- Request for activation of Coolant Fan V7 is transmitted by operating and display module, Climatronic Control Module J255 by way of CAN-Bus system to relevant engine control module.
- Switches Coolant Fan V7 infinitely to desired output →
- 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB
- 19 - ENGINE - COOLING SYSTEM for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT
- 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN
- 19 - ENGINE - COOLING SYSTEM for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH
- 19 - ENGINE - COOLING SYSTEM for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS
- 19 - ENGINE - COOLING SYSTEM for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF
- Different versions are installed at different locations depending on vehicle equipment
→
- 19 - ENGINE - COOLING SYSTEM for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB
- 19 - ENGINE - COOLING SYSTEM for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT
- 19 ENGINE - COOLING SYSTEM for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN
- 19 - ENGINE - COOLING SYSTEM for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH
- 19 - ENGINE - COOLING SYSTEM for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS
- 19 - ENGINE - COOLING SYSTEM for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF
- Checking → Read Measuring Value Block (function 08) (reading measuring value block, display group "014"),, "Guided Fault-Finding" Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052
10 - Condenser
- Always discharge refrigerant circuit before removing → Discharge refrigerant circuit
- Removing and installing refrigerant lines → Refrigerant lines for condenser, removing and installing
- Removing and installing condenser → Condenser, removing and installing
11 - Outside Air Temperature Sensor G17
- Removing
- Disconnect connector at Outside Air Temperature Sensor G17 and remove from mount in air guide →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
- Resistance values
- Measuring value of Outside Air Temperature Sensor G17 is evaluated by Instrument Cluster Control Module J285 and transmitted via CAN-Bus comfort system to operating and display module, Climatronic Control Module J255 "Guided Fault-Finding" Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052
12 - A/C Compressor Regulator Valve N280 → A/C system control and regulation components
- Checking activation and function
13 - Compressor
- Removing compressor from bracket/reinstalling → Compressor, removing and installing from bracket
- Removing refrigerant line at compressor/installing → Refrigerant lines on compressor, removing and installing
- Removing and mounting compressor → Compressor, removing and mounting (vehicles with 4 or 6-cyl. engine)
- Type of compressor differs depending on engine (installed to right or left of engine, 6-cyl. engine, 8-cyl. engine)
- Different types of compressor are installed depending on country version (e.g. "Denso" type designation "6 SEU" for Europe and "7 SEU" for hot countries)
- Removing and installing ribbed belt →
- 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 1.8 LITER 4-CYL. 5V TURBO ENGINE MECHANICAL, ENGINE CODE(S): AMB
- 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 2.0 LITER 4-CYL. 4V TURBO ENGINE MECHANICAL, ENGINE CODE(S): BPG, BWT
- 13 ENGINE - CRANKSHAFT, CYLINDER BLOCK for 3.0 LITER 6-CYL. 5V ENGINE MECHANICAL, ENGINE CODE(S): AVK, BGN
- 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 3.2 V6 4V ENGINE MECHANICAL, ENGINE CODE(S): BKH
- 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BNS
- 13 - ENGINE - CRANKSHAFT, CYLINDER BLOCK for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BHF
- Replacing belt pulley → Belt pulley/drive unit of compressor, replacing
- Checking and replacing compressor drive unit → Compressor drive unit, checking, replacing
CAUTION:
Refrigerant circuit must be discharged before removing compressor.
14 - High Pressure Sensor G65 1)
- Function, removing and installing → High Pressure Sensor G65, removing and installing
- Measuring value of High Pressure Sensor G65 is displayed in measuring value block (display group "001") of operating and display module, Climatronic Control Module J255 and
15 - Air extractor
- Sealing lips of air extraction vent must move freely and close automatically
- To ensure proper functioning of passenger compartment ventilation, air guides must not be blocked by luggage compartment lining
- Checking → Air extraction vent, checking