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How to Replace timing chain on Audi A3 8P MK2 1.8 TFSI 2008-2012

Special tools

  • Camshaft adjuster control valve removal tool – No.T10352.
  • Camshaft adjuster control valve removal tool – No.T10352/1.
  • Crankshaft pulley holding tool – No.T10355.
  • Tensioner locking pin – No.T40011.

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.
How to Replace timing chain on Audi A3 1.8 TFSI 2008-2012
How to Replace timing chain on Audi A3 1.8 TFSI 2008-2012

Valve timing procedures

  • Engine at TDC on No.1 cylinder [1] .

WARNING: Crankshaft sprocket not keyed to crankshaft.

  • Refit crankshaft pulley bolt with spacer.
  • Remove inlet camshaft adjuster control valve (LH thread) [2] .
  • Remove exhaust camshaft sprocket bolt and washer [3] .
  • Remove camshaft support bracket [4] .
  • Ensure coloured or painted chain links aligned with timing mark on each camshaft sprocket [5] .
  • Ensure balancer shaft timing marks aligned [6] .
  • Ensure balancer shaft gear timing marks aligned [7] .
  • Ensure crankshaft sprocket timing marks aligned [8] & [9] .
  • Reset tensioner [10] :
      • Release locking mechanism using a suitable tool [11] .
      • Push plunger into tensioner housing [12] .
      • Insert tensioner locking pin [13] .
  • Remove pin to release timing chain tensioner plunger [13] .
  • Tighten exhaust camshaft sprocket bolt [3] .
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