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Home >> Audi >> 2021 >> Q5 e Premium Plus >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Cooling System (4-Cylinder Direct Injection 2.0L 4V TFSI Engine (Ea 888 Generation III)) >> 19 Cooling System >> Coolant Pipes >> Coolant Pipes, Removing And Installing >> Left Coolant Pipe, Removing And Installing >> Removing

Left Coolant Pipe, Removing And Installing: Removing

CAUTION:

The cooling system is under pressure when the engine is warm. Risk of scalding due to hot steam and hot coolant.

Scalding the skin and other parts of the body is possible.

- Wear safety gloves.

- Wear protective eyewear.

- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.

-- Briefly open the coolant expansion tank cap -1- by releasing the catch -arrow-.

Fig 1: Coolant Expansion Tank
GWWA19-12304Courtesy of AUDI OF AMERICA, LLC

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

-- Vehicle with particulate filter: remove the connector -1- for the Exhaust Gas Temperature Sensor 4 -G648- from the bracket.

Fig 2: Locating Exhaust Gas Temperature Sensor 3 -G495-
GWWA26-11969Courtesy of AUDI OF AMERICA, LLC

-- Free up the electrical wire.

GWWA19-12326Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1 and 2-.

-- Place a cloth underneath to catch any escaping coolant.

-- Loosen the hose clamps -arrows-, then clamp off the coolant hoses with the :3094  and remove the hoses.