Radiator, removing and installing
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 Audi S4, 2008 Audi S4, 2007 Audi S4, 2006 Audi S4, and 2005 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools, testers and auxiliary items required
- Drip tray for workshop crane VAS 6208
Removing
NOTE:
- Drained coolant must be stored in a clean container for disposal or reuse.
- When assembled correctly, radiator and condenser can show slight impressions on fins. This is not damage. Radiators or condensers should not be replaced because of slight impressions like these.
CAUTION:
Cover cap of expansion tank with rag and open carefully, as hot steam i.e. hot coolant may escape when opening.
- Open cap of coolant expansion tank.
- Remove quick-release fasteners - 1 - , remove screws - 2 - and remove noise insulation.
- Remove front bumper cover →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
- Remove right air guide - arrow - in front of auxiliary cooler.
- Remove left air guide - arrow - in front of auxiliary cooler.
- Place drip tray for workshop crane VAS 6208 under engine.
- Remove drain plug - arrow - on coolant thermostat housing and drain coolant from engine.
- Disconnect lower coolant hose from radiator - arrow - and drain residual coolant.
- Remove cover - 1 - in engine compartment (right side).
- Disengage Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 - item 1 - from air guide.
- Remove bolts - arrows -.
- Remove air duct - 2 -.
- Disconnect top coolant hose - arrow - from radiator.
- Remove bolts - arrows - on left and right air guides at cooler.
- Unclip Outside Air Temperature Sensor G17 - 1 - from bracket and free up wire.
- Remove power steering hydraulic oil cooling pipe - arrows - ; do not open hydraulic oil circuit.
- Tie up power steering hydraulic oil cooling pipe to side.
- Remove Coolant Fan Control (FC) Control Module J293 from radiator - arrow -.
CAUTION:
The air conditioning refrigerant circuit must not be opened.
NOTE:
- To prevent damage to condenser and also to the refrigerant lines/hoses, ensure that the pipes and hoses are not stretched, kinked or bent.
- Disconnect electrical harness connector - 1 - at High Pressure Sensor G65.
- Remove bolts - arrows -.
- Remove condenser and swing downward with lines connected.
- Release both radiator retaining pins and remove by pulling upward - arrows -.
- Tilt radiator at upper edge forward, pull up and remove.
Installing
Installation is in reverse order of removal, note the following:
- Install the front bumper cover →
- 63 BUMPER
- 63 - BUMPERS for BODY EXTERIOR - CABRIOLET
- Fill with coolant Filling .
NOTE:
- Complete coolant must be replaced if the radiator was replaced.
Torque specifications
| Component | Nm |
|---|---|
| Condenser to radiator | 10 |
| Cooling coil to radiator | 10 |
| Coolant Fan Control (FC)Control Module J293 to radiator | 10 |
| Drain plug to coolant regulator housing | 25 |