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Home >> Audi >> 2017 >> A3 Premium, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 15 (COOLING SYSTEM (4-Cylinder TDI Common Rail 1.6L; 2.0L 4V Engine) -- (A3 SEDAN)) >> 19 Cooling System >> Coolant Pipes >> Coolant Pipes, Removing And Installing >> Right Rear Coolant Pipe, Removing And Installing >> Removing

Right Rear Coolant Pipe, Removing And Installing: Removing

WARNING: This page is about a different car, the 2016 Audi A3 and 2015 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING WITHOUT COOLING SYSTEM CHARGE KIT - ELECTRIC VACUUM PUMP .

-- Remove the rear coolant pipe. Refer to REAR COOLANT PIPE, REMOVING AND INSTALLING .

-- Remove the left coolant pipes. Refer to LEFT COOLANT PIPES, REMOVING AND INSTALLING .

Vehicles With FWD 

-- Remove the front exhaust pipe. Refer to FRONT EXHAUST PIPE, REMOVING AND INSTALLING .

All Vehicles

-- Open the heat protection sleeve -1-.

GWWA15-11534Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connectors -3, 5 and 6- and free up the wiring harness.

-- Remove the bolt -2-.

Vehicles With Engine Codes CRUA & DEJA: 

-- Disconnect the connector -4- for the Exhaust Gas Temperature Sensor 1 -G235-.

-- If installed, remove the vacuum hose -arrow- and free it up.

GWWA23-10729Courtesy of AUDI OF AMERICA, LLC

Continuation For All Vehicles: 

-- Lay the bracket with the differential pressure sensor(s) to the rear.

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

GWWA21-10777Courtesy of AUDI OF AMERICA, LLC
CAUTION:

- Do not open the hose connection on the crankcase ventilation.

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

-- Remove bolt -2- and tilt the air guide pipe with the intake tube backward and remove from the turbocharger.

-- Loosen the clamp -1- and remove the coolant hose.

GWWA19-11571Courtesy of AUDI OF AMERICA, LLC

-- Loosen the bolt -2-, remove bolt -3- and pivot the coolant line to the side.

-- Disconnect the connectors and free up the wires.

GWWA23-10727Courtesy of AUDI OF AMERICA, LLC
  1. For the Exhaust Gas Temperature Sensor 4 -G648-
  2. For the Exhaust Gas Temperature Sensor 3 -G495-
  3. For the Exhaust Gas Temperature Sensor 2 -G448- Equipped Depending on the Exhaust Gas Standard

-- Remove the connector for the Heated Oxygen Sensor -G39- -4- from the bracket, disconnect it and free up the wire.

-- Remove the connector -2- for the EGR Temperature Sensor -G98- from the retainer, disconnect it and free up the wire.

GWWA26-11566Courtesy of AUDI OF AMERICA, LLC

-- Remove the connector -4- from the mount, disconnect, and free up the wires.

GWWA26-11525Courtesy of AUDI OF AMERICA, LLC

-- Loosen the hose clamp -1-.

-- Free up the coolant line -3- and the Selective Catalytic Reduction (SCR) lines -2-.

-- Remove the Reducing Agent Injector -N474- and lay it to the right side.

Vehicles With Auxiliary Heater 

GWWA19-11650Courtesy of AUDI OF AMERICA, LLC

-- Remove the nuts -arrows-, and push the coolant pump slightly aside.

AWD Vehicles 

-- Remove The Right Drive Axle From The Bevel Box. Refer to OVERVIEW - DRIVE AXLE (VARIETY) / OVERVIEW - DRIVE AXLE / DRIVE AXLE, REMOVING AND INSTALLING .

All Vehicles 

-- Push the heat shield boot aside, and disconnect the connector -5-.

GWWA26-11266Courtesy of AUDI OF AMERICA, LLC

-- Loosen the clamp -3- and remove the air guide hose.

-- Loosen the clamp -4- and remove the coolant hose.

-- Remove the bolt -1- using the :T10501  , and loosen bolt -2-.

-- Open the clamp -1- and position on the emissions control module entrance funnel.

GWWA26-10996Courtesy of AUDI OF AMERICA, LLC

-- Loosen the double bolt -2-, push the coolant pipe slightly toward the rear.

-- Remove the bolts -arrows- and push the emissions control module (or catalytic converter) and EGR cooler toward the rear.

-- Loosen the clamp -1- and remove the coolant hose.

GWWA19-11285Courtesy of AUDI OF AMERICA, LLC

-- Remove the double bolt -2- and bolt -3-. Then remove the right rear coolant pipe.