Camshaft Timing Chains, Removing From Camshafts: Installing

• Tightening specifications, refer to CAMSHAFT TIMING CHAINS OVERVIEW .

• Drive chain for timing mechanism installed. Refer to TIMING MECHANISM DRIVE CHAIN .
  Fig 1: Identifying Crankshaft Holder T40069 In Hole, Removal/Installation

  Courtesy of AUDI OF AMERICA, LLC
• Secure crankshaft -1- in TDC position using T40069.

• Secure the camshafts in the TDC position on both cylinder heads using the T40133 -arrows- (25 Nm).
  Fig 2: Identifying Camshaft Adjuster T40133

  Courtesy of AUDI OF AMERICA, LLC

• Install the camshaft chain sprockets according to the marks applied during removal.
• When mounting the camshaft chain sprockets, make sure that the pins on the camshaft chain sprockets engage in the holes on the camshafts -arrows-.

• Turn the camshaft chain sprocket on the camshaft counterclockwise until it stops -arrow-.
  Fig 4: Turning Camshaft Chain Sprocket

  Courtesy of AUDI OF AMERICA, LLC

• The marking point -1- must align with the adjustment window -2-.
  Fig 5: Aligning Marking Point With Adjustment Window

  Courtesy of AUDI OF AMERICA, LLC

• Install the camshaft adjuster according to the marks applied during removal.
• The groove -1- in the camshaft adjuster must align with the adjustment window -2-.

-- Mount the left camshaft timing chain onto the drive chain sprocket, install the camshaft adjuster and camshaft chain sprocket and install the bolts -1 and 2- loosely.

• The camshaft adjuster and the camshaft chain sprocket must be able to still be rotated on camshaft and must not tip.

-- Remove the T40071.

-- Install the camshaft adjuster on the right cylinder head according to the markings applied during removal.

-- Mount the right camshaft timing chain onto the drive chain sprocket, install the camshaft adjuster and camshaft chain sprocket and install the bolts -1 and 2- loosely.

• The camshaft adjuster and the camshaft chain sprocket must be able to still be rotated on camshaft and must not tip.

-- Remove the T40071.

-- Mount the 3212 onto the camshaft chain sprocket for the right exhaust camshaft.

-- Have a second technician hold the camshaft timing chain tensioned by pressing the camshaft chain sprocket in the direction of the -arrow-.

-- Tighten the bolts as follows while the camshaft chain sprocket is still held under tension.

Stage	Bolt	Tightening Specifications
1.		to the exhaust camshaft 80 Nm
1.	-1-	to the intake camshaft 80 Nm

-- Position the T10172 with the pins T10172/2 on the left intake camshaft adjuster.

-- Have a second technician hold the camshaft timing chain tensioned by pressing the counter hold tool in the direction of the -arrow-.

-- Tighten the bolts as follows while the camshaft adjuster is still held under tension.

Stage	Bolt	Tightening Specifications
1.	-1-	to the exhaust camshaft 80 Nm
1.		to the intake camshaft 80 Nm

-- Tighten the camshaft adjuster bolts and the camshaft chain sprocket on the left cylinder head as follows:

Stage	Bolt	Tightening Specifications
2.	-1-	to the exhaust camshaft final tightening specification
2.	-2-	to the intake camshaft final tightening specification

-- Tighten the camshaft adjuster bolts and the camshaft chain sprocket on the right cylinder head as follows:

Stage	Bolt	Tightening specifications
2.	-1-	to the intake camshaft final tightening specification
2.	-2-	to the exhaust camshaft final tightening specification

-- Remove the T40133 on both cylinder heads -arrows-.

-- Remove the T40069.

-- Using the T40058 and a closed wrench, turn the crankshaft two turns in the direction of engine rotation -arrow- until it is back at "TDC".

• The threaded holes -arrows- in the camshafts must face upward.
  Fig 16: Locating Threaded Holes -Arrows- In Camshafts, Must Face Upward

  Courtesy of AUDI OF AMERICA, LLC

-- Install the T40133 in both cylinder heads and tighten -arrows- to 25 Nm.

-- Install the T40069 directly in the hole.

• The T40069 must engage in the locating hole of the crankshaft -1-, otherwise repeat the adjustment.

-- Remove the camshaft locating pins on both cylinder heads.

-- Remove the crankshaft holder.

Install in reverse order of removal paying attention to the following:

-- Install the locking bolt "TDC" mark crankshaft. Refer to Fig 19.

-- Install A/C compressor. Refer to OVERVIEW - A/C COMPRESSOR POWER UNIT .

-- Install the oil cooler. Refer to ENGINE OIL COOLER .

-- Install the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Installing the ribbed belt:

• RIBBED BELT, VEHICLES WITH HYDRAULIC POWER STEERING
• RIBBED BELT, VEHICLES WITH ELECTRO-MECHANICAL POWER STEERING

-- Install the cylinder head covers. For the left side, refer to LEFT CYLINDER HEAD COVER  and for the right side, refer to RIGHT CYLINDER HEAD COVER .

-- Install the left and right timing chain covers. Refer to LEFT AND RIGHT TIMING CHAIN COVERS .