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B4 (1991-1996) B3 (1986-1991) B3 (1986-1991, petrol) B2 (1979-1986)

Radiator — removal, inspection, cleaning and installation (Audi 80 B3)

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  • Audi 80
  • B3 (1986-1991, petrol)
  • Power unit
  • Cooling system
  • Radiator — removal, inspection, cleaning and installation
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Table of contents: 4-cylinder engines ↓ 5-cylinder engines ↓ All models ↓
Radiator — removal, inspection, cleaning and installation


1. Disconnect the negative battery cable.

2. Drain the cooling system as described in Chapter 3.

4-cylinder engines



3. On models equipped with air conditioning, remove the front grille as described in Section 11, Chapter 24, then separate the capacitor from the radiator by unscrewing the screws.

4. Loosen the clamps, disconnect the upper and lower hoses from the radiator (photo).

4. Loosen the clamps, disconnect the upper and lower hoses from the radiator (photo).


5. Loosen the clamps and disconnect the expansion tank hoses from the radiator (photo).

5. Loosen the clamps and disconnect the expansion tank hoses from the radiator (photo).


6. Remove the bolts securing the upper mounting brackets to the front panel (photo). Lift the hangers and rubber sealing rings off the radiator mounting pins.



6. Remove the bolts securing the upper mounting brackets to the front panel (photo). Lift the…


7. Disconnect the electrical wiring from the thermal switch located in the lower right corner of the radiator (photo).

7. Disconnect the electrical wiring from the thermal switch located in the lower right corner of…


8. Disconnect the electrical wiring from the electric fan motor, release the wiring harness from the bracket (photo).

8. Disconnect the electrical wiring from the electric fan motor, release the wiring harness from…


8. Disconnect the electrical wiring from the electric fan motor, release the wiring harness from…


9. Unscrew the nuts securing the lower corner radiator hangers to the rubber cushions.



10. Lift the radiator from the lower mounts and remove it from the engine compartment along with the electric cooling fan and fan shroud (photo).

10. Lift the radiator from the lower mounts and remove it from the engine compartment along with…


5-cylinder engines



11. On models equipped with air conditioning, separate the condenser from the radiator by unscrewing the screws.

12. Unscrew and remove the upper fan casing (photo).

12. Unscrew and remove the upper fan casing (photo).


12. Unscrew and remove the upper fan casing (photo).


13. Loosen the clamps and disconnect the upper hose and the upper and lower expansion tank hoses from the radiator (photo). On models with air conditioning, automatic transmission and a trailer hitch, also disconnect the auxiliary radiator hose.



13. Loosen the clamps and disconnect the upper hose and the upper and lower expansion tank hoses…


14. Disconnect the electrical wiring from the thermal switch located in the lower left corner of the radiator (photo).

14. Disconnect the electrical wiring from the thermal switch located in the lower left corner of…


15. Disconnect the electrical wiring from the electric fan motor (photo).

15. Disconnect the electrical wiring from the electric fan motor (photo).


16. Unscrew the radiator mounting nuts (photo).

16. Unscrew the radiator mounting nuts (photo).


17. Unscrew the right fan casing.



18. On 20-valve models equipped with ABS (anti-lock braking), loosen the fan motor mounting nuts and slide the motor forward.

19. Lift the radiator from the mounts and remove it from the engine compartment along with the electric cooling fan and fan shroud.

All models



20. If necessary, unscrew and unfasten the cooling fan and fan shroud from the radiator, separate the fan and motor from the fan shroud (photo). Unscrew the thermal switch, remove the gasket if necessary.

20. If necessary, unscrew and unfasten the cooling fan and fan shroud from the radiator, separate…


20. If necessary, unscrew and unfasten the cooling fan and fan shroud from the radiator, separate…


20. If necessary, unscrew and unfasten the cooling fan and fan shroud from the radiator, separate…


21. It is better to leave radiator repairs to a specialist, although minor leaks can be fixed using a composition for adding to the coolant. Clean the radiator from insects and leaves with a soft brush, or rinse with water.



22. Backflush the radiator as described in Chapter 4, replace hoses and clamps if damaged or worn.

23. Assembly is carried out in the reverse order, fill the cooling system as described in Chapter 5. If the thermal switch has been removed, install a new gasket. Check the condition of the rubber cushions, replace them if necessary (photo).

23. Assembly is carried out in the reverse order, fill the cooling system as described in Chapter…
The article was checked by auto expert Timur Bazhenov
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian

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Previous articles
Audi 80 B3: Cooling system
Next articles

Antifreeze mixture
Filling the cooling system
Flushing the cooling system
Draining the coolant
Thermostat — removal, inspection and installation
Water pump — removal and installation
Cooling Fan Thermal Switch — Checking, Removing and Installing
Coolant Temperature Sensor — Removal and Installation


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Radiator — removal, inspection, cleaning and installation Audi 100 C3 (1982-1990, diesel)
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80(B4, 1991-1996) 
  • General information
  • User manual
  • Maintenance
  • Troubleshooting
  • Power unit
  • Engine
  • Cooling system
  • Heating and ventilation
  • Petrol injection
  • Diesel fuel system
  • Fuel system
  • Exhaust systems
  • Ignition system
  • Transmission
  • Clutch
  • Car gearbox
  • Chassis
  • Brake system
  • Suspension and steering wheel
  • Body
  • Body and trim
  • Electrical equipment
  • Electrical system
  • Electrical circuits
 
80(B3, 1986-1991) 
  • General information
  • Repair characteristics
  • Maintenance
  • Power unit
  • Gasoline engine
  • Diesel engine
  • Engine lubrication system
  • Fuel system (gasoline)
  • Injection system (gasoline)
  • Fuel system (diesel)
  • Ignition system
  • Cooling system
  • Heater
  • Exhaust system
  • Transmission
  • Clutch and gearbox
  • Chassis
  • Steering
  • Brake system
  • Car suspension
  • Body
  • Body elements
  • Electrical equipment
  • Power devices
  • Lighting and appliances
  • Electrical circuits
 
80(B3, 1986-1991, petrol) 
  • General information
  • User manual
  • Maintenance
  • Power unit
  • Engine 4-cylinder
  • Engine 5-cylinder
  • Cooling system
  • Fuel and exhaust systems
  • Ignition system
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  • Mechanical transmission
  • Automatic transmission
  • Drive shafts
  • Chassis
  • Brake system
  • Suspension
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  • Body
  • Exterior
  • Interior
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
 
80(B2, 1979-1986) 
  • General information
  • User manual
  • Power unit
  • Engine FZ
  • Engine EP, YP, YZ, DT, DS, DZ
  • Transmission
  • Clutch
  • 4 speed gearbox
  • 5 speed gearbox
  • Front wheel drive
  • Chassis
  • Front suspension
  • Rear suspension
  • Steering
  • Brake system
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
 
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