Camshaft Adjuster

Special tools and workshop equipment required 

• Socket T40080
• Camshaft Clamp T10252
• Toothed Belt Tensioner T10020
• Locking Pin T10115

Removing 

-- Remove the high pressure pump. Refer to Removal and Installation .

-- Remove the cylinder head cover. Refer to CYLINDER HEAD COVER .

-- Remove vacuum pump.

-- Remove camshaft adjuster housing -arrows-.

Fig 1: Removing Camshaft Adjuster Housing

Courtesy of AUDI OF AMERICA, LLC

-- Bring marking on camshaft gear to alignment with marking on toothed belt guard. The notches of the camshafts -arrows- now face toward each other vertically.

Fig 2: Bringing Marking On Camshaft Gear To Alignment With Marking On Toothed Belt Guard

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-- Install the T10252 as shown and secure -arrows-.

Fig 3: Identifying Camshafts Secured Using Camshaft Locator T10252

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-- Loosen mounting bolt from camshaft adjuster using the T40080.

-- Compress chain tensioner -arrow A- and secure it using the T10115 -arrow B-.

Fig 4: Chain Tensioner And Locking Pin T10115

Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt from the camshaft adjuster and then remove the adjuster and the chain.

Installing 

• For the correct tightening specifications, refer to VALVETRAIN OVERVIEW 
• For the correct tightening specifications, refer to CYLINDER HEAD ASSEMBLY OVERVIEW 

• The camshafts must be fixed in place with the T10252.
  Fig 5: Identifying Camshafts Secured Using Camshaft Locator T10252

  Courtesy of AUDI OF AMERICA, LLC

-- Place the chain on to camshaft adjuster.

-- Hold the camshaft adjuster in front of the exhaust camshaft so that the notch -A- and pin -B- are positioned across from one another.

Fig 6: Identifying Camshaft Adjuster & Exhaust Camshaft Notch And Pin

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-- Place chain in this position on to chain sprocket of the intake camshaft, first at top -arrow-.

Fig 7: Identifying Intake Camshaft Chain Position

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-- Slowly turn the intake camshaft with the T10020 in direction of -arrow A- until the camshaft adjuster fits onto the camshaft.

Fig 8: Identifying Pin Wrench T10020 To Turn Intake Camshaft Until Camshaft Adjuster Fits On Camshaft

Courtesy of AUDI OF AMERICA, LLC

-- Replace camshaft adjuster mounting bolt.

-- Tighten camshaft adjuster screw. To do so, use the T40080.

-- Remove the T10115 -arrow B-.

Fig 9: Chain Tensioner And Locking Pin T10115

Courtesy of AUDI OF AMERICA, LLC

Assemble in reverse order of disassembly.

-- Install cylinder head cover. Refer to CYLINDER HEAD COVER .

-- Install high pressure pump. Refer to Removal and Installation .

-- Install vacuum pump. Refer to Removal and Installation .