The closed-type Audi A6 cooling system consists of a water pump, a radiator, cooling fans, a thermostat, a stove and connecting hoses. This chapter describes the repair and installation procedures for the cooling system components.
Specifications of the cooling system Maximum system pressure 1.2 - 1.5 bar Thermostat Opening temperature (approximately) 87° Minimum valve lift 7 mm Tightening torques, Nm Alternator/Power...
Coolant hoses Replacement 1. Drain the coolant. 2. Loosen the clamps and remove the hose. 3. Before installing the hose, put on the hose clamps. Tighten the clamps securely...
Removal and installation of a radiator Withdrawal 1. Negative battery cable. 2. Remove the hood latch mounting cross member or remove the seal from the front edge of the cross member. 3. Loosen the...
Removal and installation of the thermostat The main components of the cooling system of a 6-cylinder engine 1. Thermostat 2. O-ring 3. Thermostat housing 4. Bolt, tightening torque 10 Nm 5. Sealing...
Cooling Fan Electric fan Examination Check the voltage supply to the fan. Check switch and fuse. If there is voltage but the fan does not work, replace it. Withdrawal 1....
Cooling system switches and sensors Cooling fan temperature switch Examination See subsection 4.6. Withdrawal 1. Partially drain the coolant. 2. Disconnect the switch connector and unscrew the...
Water pump Withdrawal 4-cylinder engines 1. Drain the coolant. 2. Remove drive belts. 3. Remove the generator. 4. Remove the power steering pump. 5. Loosen the mounting...