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

• 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.