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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Engine Mechanical >> Cooling Fan >> Cooling System 2.0L (DPAA) >> 19 Cooling System >> Coolant Pipes >> Coolant Pipes, Removing And Installing >> Rear Coolant Pipe, Removing And Installing, Vehicles With High-Voltage System >> Removing

Rear Coolant Pipe, Removing And Installing, Vehicles With High-Voltage System: Removing

-- Remove the particulate filter. Refer to PARTICULATE FILTER, REMOVING AND INSTALLING .

-- Drain the coolant. Refer to DRAIN THE COOLANT .

-- Remove the nuts -arrows- and the bolt -2-.

Fig 1: Heat Shield For Vehicles With Particulate Filter
GWWA15-12175Courtesy of AUDI OF AMERICA, LLC

-- Free up the wires and remove the heat shield -1- (example illustration).

-- Remove the bolts -arrows- and move the bracket -1- for the heat shield.

Fig 2: Heat Shield Lower Bracket
GWWA15-12322Courtesy of AUDI OF AMERICA, LLC

-- Remove the nut -4- and bolt -2-.

GWWA19-13198Courtesy of AUDI OF AMERICA, LLC

-- If installed, lift up the clamp -1-, remove the coolant hose.

-- Loosen the hose clamp -5- and remove the coolant hose.

-- Remove the rear coolant pipe -3-.