Front coolant line, removing and installing

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and equipment

Fig 1: Identifying Hose Clamps 3094

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3094 Hose clamps
Oil receptacle

Removing

NOTE: All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

Remove intake manifold. Refer to Intake manifold, removing and installing .
Remove toothed belt. Refer to Toothed belt, removing and installing .
Remove camshaft gears from left cylinder head.

Fig 2: Unscrewing Bolts And Removing Toothed Belt Guard At Left Rear

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Unscrew bolts -1- and -2- and remove toothed belt guard at left rear.
Place oil pan underneath.

Fig 3: Clamping Off Two Hoses At Hydraulic Fluid Supply Line Using 3094 Hose Clamps

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Clamp off two hoses at hydraulic fluid supply line using 3094 hose clamps.
Disconnect both hydraulic hoses from supply line.
Disconnect coolant hoses at front coolant line.

Fig 4: Removing Coolant Line Toward Front

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Remove bolts -1- and -2- and move pipes at coolant line to side.
Remove coolant line toward front (arrow).

Installing

Installation is reverse of removal, noting the following:

NOTE:

Secure all hose connections using hose clamps appropriate for the model type:
Replace O-rings.

Clean and/or smooth O-ring sealing surface before installing.
Coat new O-ring with G12 and slide onto coolant line.
Slide front coolant line into hole at rear coolant line.
Install intake manifold. Refer to Installing .

Install toothed belt (adjust timing). Refer to Installing (adjusting valve timing) .
Fill power steering with fluid and bleed steering system:

Refer to 48 - STEERING

Tightening torques

Component		Nm
Front coolant line	M6	10
To cylinder head	M8	22
Rear toothed belt guard to cylinder head or cylinder block		10 1)

1) Replace bolts.