Manual:AUDI A3 Premium, 4D Sedan 2015Page:49502 / 92758



Refrigerant Lines With Inner Heat EXCHANGER, Removing And Installing: Removing — 2015 Audi A3 Premium, 4D Sedan Service Manual

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

-- Discharge the refrigerant circuit. Refer to REFRIGERANT CIRCUIT, DISCHARGING WITH A/C SERVICE STATION (R134a) / REFRIGERANT CIRCUIT, EVACUATING WITH A/C SERVICE STATION (R134a) / REFRIGERANT CIRCUIT, CHARGING WITH A/C SERVICE STATION (R134a) (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or REFRIGERANT CIRCUIT, DISCHARGING (R1234yf) / REFRIGERANT CIRCUIT, EVACUATING (R1234yf) / REFRIGERANT CIRCUIT, CHARGING (R1234yf) .

Vehicles With 1.8L TFSI Engine 

GWWA21-10818Courtesy of AUDI OF AMERICA, LLC

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

Vehicles With 2.0L TDI Engine 

GWWA21-10777Courtesy of AUDI OF AMERICA, LLC

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

-- Free up the vacuum hoses at the air guide pipe -arrows-.

-- Loosen the hose clamp -3-.

-- Remove the bolt -2- and tilt the air guide pipe with the connection downward and remove it from the turbocharger.

Vehicles With A High Voltage System 

-- Loosen the bracket -A- (for the High Voltage Battery Coolant Valve -N688-) from the plenum chamber bulkhead.

GWWA87-11596Courtesy of AUDI OF AMERICA, LLC

-- Loosen and carefully bend back the heat shield -B- in the area of the Heater and A/C Unit Refrigerant Shut-Off Valve -N541- -D- and the refrigerant line -F- (to the separating point on the right longitudinal member) from the plenum chamber bulkhead.

For All Vehicles 

-- Remove the sheet spring nut -1 and 3-.

GWWA87-11328Courtesy of AUDI OF AMERICA, LLC

-- Fold the heat shield -2- as far forward as possible -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 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  .