Audi Workshop Service and Repair Manuals

Removing and installing radiator

Special tools and workshop equipment required

t	Used oil collection and extraction unit -V.A.G 1782-

t	Hose clip pliers -V.A.G 1921-

t	Drip tray for workshop hoist -VAS 6208-

Removing   Note Even when the radiator and condenser are correctly installed, slight impressions may be visible on the fins of these components. This does not mean that the components are damaged. If the fins are only very slightly distorted, this does not justify renewal of the radiator or the condenser. –  Carefully pull engine cover panel off four retaining pins one after the other -arrows-.   WARNING Hot steam or hot coolant can escape when expansion tank is opened; cover filler cap with cloth and open carefully. –  Open filler cap on coolant expansion tank.

–  Vehicles with auxiliary heater: remove bolts -arrows- securing exhaust pipe for auxiliary/additional heater to noise insulation.

–  Release quick-release fasteners -1- and -2- and take off front noise insulation. Leave rear noise insulation in position.

–  Remove bumper cover (front) → Rep. gr.63. –  Remove air ducts in front of both charge air coolers -arrows-.

–  Place drip tray for workshop hoist -VAS 6208- under engine. –  Disconnect coolant hose -arrow- from coolant pipe (left-side) and drain off coolant.

–  Detach coolant hose -arrow- at bottom left of radiator.

–  Detach coolant hose (bottom right) from radiator -arrow-.

–  Detach coolant hose at top left of radiator -arrow-.

Vehicles with automatic gearbox: –  Remove bolts -arrows-. –  Remove air ducts -1- and -2-.   Note

Observe rules for cleanliness when working on automatic gearbox → Rep. gr.37. –  Place used oil collection and extraction unit -V.A.G 1782- under engine. –  Detach ATF lines (top -arrow- and bottom) from radiator: → Rep. gr.37. –  Tie ATF lines up onto longitudinal member to prevent fluid escaping.

All vehicles (continued): –  Unplug electrical connectors (left and right) -3- for horns -2-.   Note Disregard -item 1-.

–  Remove bumper -arrows-.

–  Unbolt air cowls (left and right) at radiator -arrows-.

–  Unclip ambient temperature sensor -G17--arrow- from bracket. –  Unscrew bolts -1- and -2- for power steering cooling pipe; the hydraulic hoses remain attached.   WARNING The air conditioner refrigerant circuit must not be opened.

–  Unplug electrical connector -1-. –  Remove bolts -arrows-.   Note To prevent damage to the refrigerant lines, ensure that the pipes and hoses are not stretched, kinked or bent. –  Pivot condenser downwards with pipes/hoses attached.

–  Release two retaining pins for radiator and pull out upwards -arrows-. –  Swivel radiator forwards and lift off.

Installing Installation is carried out in the reverse order; note the following: –  Remove old O-ring -2- from coolant hose -3-. –  Lubricate new O-ring with coolant additive and fit O-ring in coolant hose. –  Press coolant hose onto radiator -1- until it engages with a click. –  Press coolant hose in again and then pull to check that plug-in connector is correctly engaged. –  Secure ATF lines → Rep. gr.37. –  Install front bumper → Rep. gr.63. –  Install bumper cover (front) → Rep. gr.63. –  Fill cooling system → Anchor.   Note The coolant in the entire system must be changed if the radiator is renewed. –  Check ATF level → Rep. gr.37. Tightening torques

Component	Nm
Condenser to lock carrier	6
Power steering cooling pipe to condenser	9