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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 Coolant Pipe

Left Coolant Pipe

Special tools and workshop equipment required 

Removing 

-- Remove air conditioner (A/C) compressor. Refer to the appropriate service information .

-- Disconnect the connector -3-.

Fig 1: Identifying Bolts -1 & 2- And Electrical Connector -3-
GWWA10-10485Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and -2-, remove the throttle valve control module -J338- from the intake tube.

-- Using a 3212 as a counterholder, remove the bolts -arrows- and remove the power steering pump ribbed belt pulley.

Fig 2: Identifying Spanner Wrench 3212 And Bolts -Arrows-
GWWA13-0880Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -1- and -2-.

Fig 3: Identifying Power Steering Pump Bolts -1 And 2-
GWWA48-10347Courtesy of AUDI OF AMERICA, LLC

-- Remove the power steering pump and tie it upward.

-- Remove the bolt -2- for the oil dipstick guide tube.

Fig 4: Identifying Ribbed Belt Tensioner Bolt -1- And Oil Dipstick Guide Tube Bolt -2-
GWWA19-10302Courtesy of AUDI OF AMERICA, LLC

-- Remove the ribbed belt tensioning element bolt -1-.

WARNING:

Risk of scalding due to hot steam and hot coolant.

  • The coolant system is under pressure when the engine is warm.
  • Cover the coolant reservoir cap with a cloth and then open it slowly to release the pressure in the system.

-- Open the coolant reservoir cap.

-- Place the VAS 6208 under engine.

Fig 5: Identifying Clamp -1- To Coolant Hose, Bolts -2 & 4- And Clamp -3-
GWWA19-10629Courtesy of AUDI OF AMERICA, LLC

-- Remove the coolant hose from the left coolant pipe by loosening the hose clamp -1- and letting the coolant drain out.

-- Remove the bolts -4- and -arrows- and remove the accessory assembly bracket.

-- Loosen the clamp -3- and remove the coolant hose from the left coolant pipe.

-- Remove the bolt -2- and remove the left coolant pipe from the bracket.

Installing 

Install in reverse order of removal. Note the following:

NOTE:

Replace the seal and O-ring.

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

-- Clean or smooth the seal and O-ring sealing surfaces.

-- Coat the seal and O-ring with coolant and then mount them on the coolant pipe.

-- Install the accessory assembly bracket and ribbed belt tensioning element. Refer to RIBBED BELT DRIVE OVERVIEW .

-- Install oil dipstick guide tube. Refer to UPPER OIL PAN OVERVIEW .

-- Install the power steering pump. Refer to Removal and Installation .

-- Install throttle valve control module -J338-. Refer to Description and Operation .

-- Install A/C compressor. Refer to the appropriate service information .

-- Fill with coolant FILLING .