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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> 3.0L - Cooling System - Engine Code(S): CATA >> 19 Cooling System >> Removal And Installation >> Left Rear Coolant Pipe On Exhaust Gas RECIRCULATION Auxiliary Cooler

Left Rear Coolant Pipe On Exhaust Gas RECIRCULATION Auxiliary Cooler

Special tools and workshop equipment required 

Removing 

-- Drain the coolant. Refer to COOLING SYSTEM, DRAINING AND FILLING .

-- Carefully pull the engine cover -arrows- off the 4 bolts one after the other.

Fig 1: Identifying Engine Cover -Arrows-
GWWA10-11000Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -1-.

Fig 2: Identifying Bolt -1-, Clamp -Arrow- And Left Rear Coolant Pipe
GWWA19-10816Courtesy of AUDI OF AMERICA, LLC

-- Remove the left rear coolant pipe from the exhaust gas recirculation auxiliary cooler.

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

Installing 

Install in reverse order of removal. Note the following:

NOTE:

Secure all hose connections with hose clamps appropriate for the model.

-- Clean and/or smooth the sealing surfaces of the O-rings.

-- Coat the O-ring with coolant and slide it onto the coolant pipe.

-- Fill with coolant FILLING .