LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2017 >> TT Quattro Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (Air Conditioning (1 Of 2) [Coupe]) >> 87 Air Conditioning >> Refrigerant Circuit >> Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing >> Removing

Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing: Removing

WARNING: This page is about a different variant/trim than selected.

-- Discharge the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING [CNTC, CYFB] / ENGINE COVER, REMOVING AND INSTALLING [DAZA] .

Vehicles with 1.8L and 2.0L TFSI Engine:

Fig 1: Identifying Clamps With Air Guide Pipe
GWWA21-10818Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamps -1 and 2- and remove the air duct pipe.

Vehicles with 2.5L TFSI Engine:

GWWA21-11202Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the hose -3- for the crankcase ventilation on the air duct pipe, to do so press the release buttons on both sides.

-- Remove the bolt -arrows-.

-- Loosen the hose clamps -1 and 2- and remove the air duct pipe.

Vehicles with 2.0L TDI Engine:

GWWA21-10777Courtesy of AUDI OF AMERICA, LLC

-- Press the release buttons on the crankcase ventilation hose -1- and remove the hose from the cylinder head cover.

-- Free up the vacuum hoses on the air duct pipe -arrows-.

-- Loosen the hose clamp -3-.

-- Remove the bolt -2-, pivot the air duct pipe with the connection toward the rear and remove it from the turbocharger.

Continuation for All Vehicles: 

GWWA45-10236Courtesy of AUDI OF AMERICA, LLC

-- If installed, release the catch in direction of -arrow- and remove the cover -1- to the left side.

-- Unclip the wiring guide.

-- Remove the sheet metal nuts -1 and 3-.

GWWA87-11328Courtesy of AUDI OF AMERICA, LLC

-- Fold the heat shield -2- as far forward as possible in direction of -arrow-.

GWWA87-11414Courtesy of AUDI OF AMERICA, LLC
WARNING:

Danger due to refrigerant coming out under pressure.

Danger of frost bite to skin and other parts of the body.

  • Evacuate the refrigerant and immediately open the refrigerant circuit afterward.
  • If more than 10 minutes have elapsed since evacuating the refrigerant and the refrigerant circuit was not opened, evacuate the refrigerant again. Pressure in the refrigerant circuit is caused by evaporation.

-- Remove the bolt -7-.

-- Disconnect the refrigerant line -6- with the inner heat exchanger from the expansion valve.

-- Remove the nuts -1 and 3- and remove the refrigerant lines -2 and 4-.

-- Remove the refrigerant line -5- with the inner heat exchanger to the right.

-- Seal the open lines and connections with clean plugs from the :VAS6122  .