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How to Replace timing chain on Audi A4 B8 3.2 FSI quattro

Special tools

  • Camshaft adjuster pre-tensioning tool 1 – No.T10172.
  • Camshaft adjuster pre-tensioning tool 2 – No.T10172/2.
  • Camshaft locking tool x 2 – No.T40133.
  • Crankshaft alignment tool – No.T40049.
  • Crankshaft locking pin – No.T40069.
  • Crankshaft pulley alignment tool – No.T40058.
  • Timing chain tensioner locking pin – No.T40071.

General precautions

  • Disconnect battery earth lead.
  • Remove spark plugs to ease turning engine.
  • Turn engine in normal direction of rotation (unless otherwise stated).
  • Observe tightening torques.
  • If fitted: Mark position of crankshaft position (CKP) sensor before removal.
  • Do NOT turn crankshaft via camshaft or other sprockets.
  • Do NOT turn crankshaft or camshaft with timing chain removed.

Valve timing procedures

How to Replace timing chain on Audi A4 B8 3.2 FSI quattro
How to Replace timing chain on Audi A4 B8 3.2 FSI quattro
  • Timing chains located at rear of engine.
  • Removal/installation of timing chain(s) requires:
      • Transmission removal.
      • Flywheel removal.
  • A4/A5/Q5:
      • Engine at TDC on No.1 cylinder [1] .
      • Ensure camshafts correctly aligned [2] . Threaded holes in camshafts point upwards.
      • If not, turn crankshaft 360°.
  • A6:
      • Turn crankshaft in direction of rotation until threaded holes in camshafts point upwards [2] .
  • Remove blanking plug from cylinder block.
  • Install crankshaft locking pin [3] . Tighten to 20 Nm.
  • Ensure balancer shaft can be locked in position [4] .
  • Fit camshaft locking tools [5] . Tighten to 25 Nm.
  • If camshaft locking tool cannot be fitted valve timing is incorrect.
  • Remove tensioner(s) to ease timing chain(s) removal/installation.
  • Push plunger [6] into tensioner housing [7] and insert locking pin [8] .

NOTE: Mark chain link and camshaft adjusters with paint before removal.

  • Slacken central bolt of each camshaft adjuster 1 turn [9] .
  • Align camshafts.
  • Fit camshaft locking tools [5] . Tighten to 25 Nm.
  • Tighten bolt of each camshaft adjuster. Tightening torque: 80 Nm + 90°.
  • Remove timing chain tensioner locking pins after repairs [8] .

NOTE: Central bolt of camshaft adjusters MUST only be used once.

  • Remove crankshaft locking pin and camshaft locking tools [3] & [5] .
  • Turn crankshaft two turns clockwise.
  • Fit crankshaft locking pin [3] .
  • Check valve timing.
  • Remove crankshaft locking pin [3] .
  • Refit blanking plug and tighten to 14 Nm.

NOTE: If timing chains are to be reused, mark LH and RH chains before removal to ensure they are refitted in their original positions.

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